├── .babelrc ├── .editorconfig ├── .github ├── dependabot.yml ├── pull_request_template.md └── workflows │ ├── deploy-docs.yml │ └── nodejs.yml ├── .gitignore ├── .gitmodules ├── .husky ├── .gitignore └── pre-push ├── .node-version ├── .prettierignore ├── .prettierrc ├── .vscode ├── launch.json └── settings.json ├── .yarnrc.yml ├── LICENSE ├── README.md ├── docs ├── .gitignore ├── _config.yml ├── images │ ├── favicon.ico │ └── sourcepower.ico ├── jsdoc │ ├── conf.json │ └── templates │ │ └── template │ │ ├── README.md │ │ ├── publish.js │ │ ├── static │ │ ├── README.md │ │ ├── fonts │ │ │ ├── OpenSans-Bold-webfont.eot │ │ │ ├── OpenSans-Bold-webfont.svg │ │ │ ├── OpenSans-Bold-webfont.woff │ │ │ ├── OpenSans-BoldItalic-webfont.eot │ │ │ ├── OpenSans-BoldItalic-webfont.svg │ │ │ ├── OpenSans-BoldItalic-webfont.woff │ │ │ ├── OpenSans-Italic-webfont.eot │ │ │ ├── OpenSans-Italic-webfont.svg │ │ │ ├── OpenSans-Italic-webfont.woff │ │ │ ├── OpenSans-Light-webfont.eot │ │ │ ├── OpenSans-Light-webfont.svg │ │ │ ├── OpenSans-Light-webfont.woff │ │ │ ├── OpenSans-LightItalic-webfont.eot │ │ │ ├── OpenSans-LightItalic-webfont.svg │ │ │ ├── OpenSans-LightItalic-webfont.woff │ │ │ ├── OpenSans-Regular-webfont.eot │ │ │ ├── OpenSans-Regular-webfont.svg │ │ │ └── OpenSans-Regular-webfont.woff │ │ ├── scripts │ │ │ └── prettify │ │ │ │ └── Apache-License-2.0.txt │ │ └── styles │ │ │ ├── README.md │ │ │ ├── jsdoc-default.css │ │ │ ├── prettify-jsdoc.css │ │ │ └── prettify-tomorrow.css │ │ └── tmpl │ │ ├── README.md │ │ ├── augments.tmpl │ │ ├── container.tmpl │ │ ├── details.tmpl │ │ ├── example.tmpl │ │ ├── examples.tmpl │ │ ├── exceptions.tmpl │ │ ├── layout.tmpl │ │ ├── mainpage.tmpl │ │ ├── members.tmpl │ │ ├── method.tmpl │ │ ├── modifies.tmpl │ │ ├── params.tmpl │ │ ├── properties.tmpl │ │ ├── returns.tmpl │ │ ├── source.tmpl │ │ ├── tutorial.tmpl │ │ └── type.tmpl ├── language_processing.png ├── language_processing.pptx ├── lib │ ├── array.js │ ├── auxiliary.js │ ├── continuation.js │ ├── empty.js │ ├── ev3.js │ ├── list.js │ ├── math.js │ ├── mce.js │ ├── misc.js │ ├── pairmutator.js │ ├── parsetreetypes.js │ └── stream.js ├── md │ ├── CURVES_README.md │ ├── EV3_README.md │ ├── GAME_README.md │ ├── PIXNFLIX_README.md │ ├── README.md │ ├── README_1.md │ ├── README_1_TYPED.md │ ├── README_1_WASM.md │ ├── README_2.md │ ├── README_2_TYPED.md │ ├── README_3.md │ ├── README_3_TYPED.md │ ├── README_4.md │ ├── README_4_EXPLICIT-CONTROL.md │ ├── README_4_TYPED.md │ ├── README_ARRAYS.md │ ├── README_AUXILIARY.md │ ├── README_BINARYTREES.md │ ├── README_CONTINUATION.md │ ├── README_EXTERNAL.md │ ├── README_LISTS.md │ ├── README_MATH.md │ ├── README_MCE.md │ ├── README_MISC.md │ ├── README_PAIRMUTATORS.md │ ├── README_STREAMS.md │ ├── README_top.md │ ├── RUNES_README.md │ └── SOUNDS_README.md └── specs │ ├── .gitignore │ ├── Makefile │ ├── source_0.tex │ ├── source_0_rules.tex │ ├── source_0_subst.tex │ ├── source_1.tex │ ├── source_1_bnf.tex │ ├── source_1_bnf_with_import_export.tex │ ├── source_1_bnf_without_import.tex │ ├── source_1_infinite_loop_detection.tex │ ├── source_1_type_inference.tex │ ├── source_1_typed.tex │ ├── source_1_typed_bnf.tex │ ├── source_1_typed_typing.tex │ ├── source_1_wasm.tex │ ├── source_2.tex │ ├── source_2_bnf.tex │ ├── source_2_stepper.tex │ ├── source_2_stepper_rules.tex │ ├── source_2_stepper_style.tex │ ├── source_2_type_inference.tex │ ├── source_2_typed.tex │ ├── source_2_typed_bnf.tex │ ├── source_2_typed_typing.tex │ ├── source_3.tex │ ├── source_3_bnf.tex │ ├── source_3_bnf_without_import.tex │ ├── source_3_type_inference.tex │ ├── source_3_typed.tex │ ├── source_3_typed_bnf.tex │ ├── source_3_typed_typing.tex │ ├── source_4.tex │ ├── source_4_explicitcontrol.tex │ ├── source_4_typed.tex │ ├── source_4_typed_typing.tex │ ├── source_array_support.tex │ ├── source_arrays.tex │ ├── source_bnf.tex │ ├── source_boolean_operators.tex │ ├── source_comments.tex │ ├── source_concurrent_vm.tex │ ├── source_continuation.tex │ ├── source_export.tex │ ├── source_gpu_bnf.tex │ ├── source_header.tex │ ├── source_import.tex │ ├── source_import_syntax.tex │ ├── source_import_wasm.tex │ ├── source_interpreter.tex │ ├── source_intro.tex │ ├── source_js_differences.tex │ ├── source_list_library.tex │ ├── source_lists.tex │ ├── source_loops.tex │ ├── source_math.tex │ ├── source_misc.tex │ ├── source_names_lang.tex │ ├── source_names_week_1.tex │ ├── source_numbers.tex │ ├── source_object_support.tex │ ├── source_objects.tex │ ├── source_overloading.tex │ ├── source_pair_mutators.tex │ ├── source_parse_tree_types.tex │ ├── source_python_1.tex │ ├── source_python_1_bnf.tex │ ├── source_python_bnf.tex │ ├── source_python_boolean_operators.tex │ ├── source_python_comments.tex │ ├── source_python_header.tex │ ├── source_python_import.tex │ ├── source_python_integers.tex │ ├── source_python_intro.tex │ ├── source_python_math.tex │ ├── source_python_misc.tex │ ├── source_python_names_lang.tex │ ├── source_python_numbers.tex │ ├── source_python_return.tex │ ├── source_python_strings.tex │ ├── source_python_typing.tex │ ├── source_return.tex │ ├── source_standard.tex │ ├── source_stream_library.tex │ ├── source_streams.tex │ ├── source_strings.tex │ ├── source_studio_2.tex │ ├── source_studio_2_bnf.tex │ ├── source_studio_2_js_differences.tex │ ├── source_studio_2_misc.tex │ ├── source_studio_2_return.tex │ ├── source_studio_2_typing.tex │ ├── source_styleguide.tex │ ├── source_typing.tex │ └── source_typing_3.tex ├── eslint.config.mjs ├── package.json ├── renovate.json ├── scripts ├── autocomplete.mjs ├── build_sicp_package.mjs ├── docs.mjs ├── publish_sicp_package.sh └── run_jest.mjs ├── sicp_publish ├── .gitignore ├── README.md ├── package.json └── yarn.lock ├── src ├── __tests__ │ ├── __snapshots__ │ │ ├── environmentTree.ts.snap │ │ ├── index.ts.snap │ │ ├── scope-refactoring.ts.snap │ │ └── stdlib.ts.snap │ ├── block-scoping.ts │ ├── display.ts │ ├── draw_data.ts │ ├── environmentTree.ts │ ├── index.ts │ ├── mode.ts │ ├── return-regressions.ts │ ├── scope-refactoring.ts │ ├── sicp │ │ ├── .gitignore │ │ ├── chapter1 │ │ │ ├── section1 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ └── 8.js │ │ │ │ ├── subsection3 │ │ │ │ │ └── 1.js │ │ │ │ ├── subsection4 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ └── 6.js │ │ │ │ ├── subsection5 │ │ │ │ │ └── 1.js │ │ │ │ ├── subsection6 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection7 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ └── subsection8 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ └── 8.js │ │ │ ├── section2 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ └── 4.js │ │ │ │ ├── subsection3 │ │ │ │ │ └── 1.js │ │ │ │ ├── subsection4 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ └── 5.js │ │ │ │ ├── subsection5 │ │ │ │ │ └── 1.js │ │ │ │ └── subsection6 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ └── 8.js │ │ │ └── section3 │ │ │ │ ├── subsection1 │ │ │ │ ├── 1.js │ │ │ │ ├── 10.js │ │ │ │ ├── 11.js │ │ │ │ ├── 12.js │ │ │ │ ├── 13.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ ├── 1.js │ │ │ │ ├── 10.js │ │ │ │ ├── 11.js │ │ │ │ ├── 12.js │ │ │ │ ├── 13.js │ │ │ │ ├── 14.js │ │ │ │ ├── 15.js │ │ │ │ ├── 16.js │ │ │ │ ├── 17.js │ │ │ │ ├── 18.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ │ │ ├── subsection3 │ │ │ │ ├── 1.js │ │ │ │ ├── 10.js │ │ │ │ ├── 11.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ │ │ └── subsection4 │ │ │ │ ├── 1.js │ │ │ │ ├── 10.js │ │ │ │ ├── 11.js │ │ │ │ ├── 12.js │ │ │ │ ├── 13.js │ │ │ │ ├── 14.js │ │ │ │ ├── 15.js │ │ │ │ ├── 16.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ ├── chapter2 │ │ │ ├── section1 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ └── 1.js │ │ │ │ ├── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ └── 3.js │ │ │ │ └── subsection4 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ └── 5.js │ │ │ ├── section2 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 22.js │ │ │ │ │ ├── 23.js │ │ │ │ │ ├── 24.js │ │ │ │ │ ├── 25.js │ │ │ │ │ ├── 26.js │ │ │ │ │ ├── 27.js │ │ │ │ │ ├── 28.js │ │ │ │ │ ├── 29.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 30.js │ │ │ │ │ ├── 31.js │ │ │ │ │ ├── 32.js │ │ │ │ │ ├── 33.js │ │ │ │ │ ├── 34.js │ │ │ │ │ ├── 35.js │ │ │ │ │ ├── 36.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 22.js │ │ │ │ │ ├── 23.js │ │ │ │ │ ├── 24.js │ │ │ │ │ ├── 25.js │ │ │ │ │ ├── 26.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 22.js │ │ │ │ │ ├── 23.js │ │ │ │ │ ├── 24.js │ │ │ │ │ ├── 25.js │ │ │ │ │ ├── 26.js │ │ │ │ │ ├── 27.js │ │ │ │ │ ├── 28.js │ │ │ │ │ ├── 29.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 30.js │ │ │ │ │ ├── 31.js │ │ │ │ │ ├── 32.js │ │ │ │ │ ├── 33.js │ │ │ │ │ ├── 34.js │ │ │ │ │ ├── 35.js │ │ │ │ │ ├── 36.js │ │ │ │ │ ├── 37.js │ │ │ │ │ ├── 38.js │ │ │ │ │ ├── 39.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ └── subsection4 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 22.js │ │ │ │ │ ├── 23.js │ │ │ │ │ ├── 24.js │ │ │ │ │ ├── 25.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ ├── section3 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ └── subsection4 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ ├── section4 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ └── 2.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ └── 5.js │ │ │ │ └── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ └── section5 │ │ │ │ └── subsection1 │ │ │ │ ├── 1.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ └── 5.js │ │ ├── chapter3 │ │ │ ├── section1 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 22.js │ │ │ │ │ ├── 23.js │ │ │ │ │ ├── 24.js │ │ │ │ │ ├── 25.js │ │ │ │ │ ├── 26.js │ │ │ │ │ ├── 27.js │ │ │ │ │ ├── 28.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ └── 3.js │ │ │ │ └── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ ├── section2 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ └── 2.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ └── 3.js │ │ │ │ ├── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ └── 7.js │ │ │ │ └── subsection4 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ └── 4.js │ │ │ ├── section3 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 13.js │ │ │ │ │ ├── 14.js │ │ │ │ │ ├── 15.js │ │ │ │ │ ├── 16.js │ │ │ │ │ ├── 17.js │ │ │ │ │ ├── 18.js │ │ │ │ │ ├── 19.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 20.js │ │ │ │ │ ├── 21.js │ │ │ │ │ ├── 22.js │ │ │ │ │ ├── 23.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ └── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ ├── section4 │ │ │ │ ├── section4 │ │ │ │ │ ├── 1.js │ │ │ │ │ └── 2.js │ │ │ │ └── subsection1 │ │ │ │ │ └── 1.js │ │ │ └── section5 │ │ │ │ ├── subsection1 │ │ │ │ ├── 1.js │ │ │ │ ├── 10.js │ │ │ │ ├── 11.js │ │ │ │ ├── 12.js │ │ │ │ ├── 13.js │ │ │ │ ├── 14.js │ │ │ │ ├── 15.js │ │ │ │ ├── 16.js │ │ │ │ ├── 17.js │ │ │ │ ├── 18.js │ │ │ │ ├── 19.js │ │ │ │ ├── 2.js │ │ │ │ ├── 20.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ ├── 1.js │ │ │ │ ├── 10.js │ │ │ │ ├── 11.js │ │ │ │ ├── 12.js │ │ │ │ ├── 13.js │ │ │ │ ├── 14.js │ │ │ │ ├── 15.js │ │ │ │ ├── 16.js │ │ │ │ ├── 17.js │ │ │ │ ├── 18.js │ │ │ │ ├── 19.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ │ │ ├── subsection4 │ │ │ │ └── 1.js │ │ │ │ └── subsection5 │ │ │ │ └── 1.js │ │ ├── chapter4 │ │ │ ├── section1 │ │ │ │ ├── subsection1 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 12.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection2 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 11.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection3 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 10.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ ├── 7.js │ │ │ │ │ ├── 8.js │ │ │ │ │ └── 9.js │ │ │ │ ├── subsection4 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ ├── 4.js │ │ │ │ │ ├── 5.js │ │ │ │ │ ├── 6.js │ │ │ │ │ └── 7.js │ │ │ │ ├── subsection5 │ │ │ │ │ └── 1.js │ │ │ │ ├── subsection6 │ │ │ │ │ ├── 1.js │ │ │ │ │ ├── 2.js │ │ │ │ │ ├── 3.js │ │ │ │ │ └── 4.js │ │ │ │ └── subsection7 │ │ │ │ │ └── 1.js │ │ │ ├── section2 │ │ │ │ └── subsection1 │ │ │ │ │ └── 1.js │ │ │ └── section4 │ │ │ │ └── subsection4 │ │ │ │ └── 1.js │ │ └── chapter5 │ │ │ ├── section1 │ │ │ ├── subsection2 │ │ │ │ ├── 1.js │ │ │ │ └── 2.js │ │ │ └── subsection4 │ │ │ │ ├── 1.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ └── 6.js │ │ │ ├── section2 │ │ │ ├── section2 │ │ │ │ ├── 1.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ └── 5.js │ │ │ ├── subsection2 │ │ │ │ ├── 1.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ │ ├── subsection3 │ │ │ │ ├── 1.js │ │ │ │ ├── 10.js │ │ │ │ ├── 11.js │ │ │ │ ├── 12.js │ │ │ │ ├── 13.js │ │ │ │ ├── 14.js │ │ │ │ ├── 15.js │ │ │ │ ├── 2.js │ │ │ │ ├── 3.js │ │ │ │ ├── 4.js │ │ │ │ ├── 5.js │ │ │ │ ├── 6.js │ │ │ │ ├── 7.js │ │ │ │ ├── 8.js │ │ │ │ └── 9.js │ │ │ └── subsection4 │ │ │ │ ├── 1.js │ │ │ │ ├── 2.js │ │ │ │ └── 3.js │ │ │ ├── section4 │ │ │ └── subsection4 │ │ │ │ └── 1.js │ │ │ └── section5 │ │ │ ├── subsection5 │ │ │ ├── 1.js │ │ │ ├── 2.js │ │ │ ├── 3.js │ │ │ ├── 4.js │ │ │ ├── 5.js │ │ │ ├── 6.js │ │ │ └── 7.js │ │ │ ├── subsection6 │ │ │ ├── 1.js │ │ │ ├── 2.js │ │ │ ├── 3.js │ │ │ ├── 4.js │ │ │ ├── 5.js │ │ │ └── 6.js │ │ │ └── subsection7 │ │ │ ├── 1.js │ │ │ ├── 2.js │ │ │ ├── 3.js │ │ │ ├── 4.js │ │ │ ├── 5.js │ │ │ ├── 6.js │ │ │ ├── 7.js │ │ │ ├── 8.js │ │ │ └── 9.js │ ├── stdlib.ts │ ├── stringify-benchmark.ts │ ├── stringify.ts │ ├── tailcall-return.ts │ └── tst.notts ├── alt-langs │ ├── __tests__ │ │ └── mapper.ts │ ├── mapper.ts │ └── scheme │ │ ├── __tests__ │ │ ├── scheme-encode-decode.ts │ │ ├── scheme-mapper.ts │ │ └── scheme-parser.ts │ │ └── scheme-mapper.ts ├── constants.ts ├── createContext.ts ├── cse-machine │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ ├── cse-machine-heap.ts.snap │ │ │ ├── cse-machine-runtime-context.ts.snap │ │ │ ├── cse-machine-stdlib.ts.snap │ │ │ └── cse-machine-unique-id.ts.snap │ │ ├── continuations.ts │ │ ├── cse-machine-callcc-js.ts │ │ ├── cse-machine-callcc.ts │ │ ├── cse-machine-errors.ts │ │ ├── cse-machine-heap.ts │ │ ├── cse-machine-return-regressions.ts │ │ ├── cse-machine-runtime-context.ts │ │ ├── cse-machine-stdlib.ts │ │ ├── cse-machine-unique-id.ts │ │ ├── cse-machine.ts │ │ ├── cset-machine-apply.ts │ │ ├── cset-machine-eval.ts │ │ ├── cset-machine-macros.ts │ │ ├── cset-machine.ts │ │ └── patterns.ts │ ├── closure.ts │ ├── continuations.ts │ ├── heap.ts │ ├── instrCreator.ts │ ├── interpreter.ts │ ├── macro-utils.ts │ ├── patterns.ts │ ├── scheme-macros.ts │ ├── stack.ts │ ├── types.ts │ └── utils.ts ├── editors │ └── ace │ │ ├── docTooltip │ │ ├── .gitignore │ │ └── index.ts │ │ ├── modes │ │ └── source.ts │ │ └── theme │ │ └── source.ts ├── errors │ ├── errors.ts │ ├── runtimeSourceError.ts │ ├── timeoutErrors.ts │ ├── typeErrors.ts │ └── validityErrors.ts ├── finder.ts ├── index.ts ├── infiniteLoops │ ├── __tests__ │ │ ├── errors.ts │ │ ├── instrument.ts │ │ ├── runtime.ts │ │ └── symbolic.ts │ ├── detect.ts │ ├── errors.ts │ ├── instrument.ts │ ├── runtime.ts │ ├── state.ts │ └── symbolic.ts ├── modules │ ├── __tests__ │ │ └── moduleUtils.ts │ ├── errors.ts │ ├── loader │ │ ├── __mocks__ │ │ │ └── loaders.ts │ │ ├── __tests__ │ │ │ ├── loader.ts │ │ │ └── requireProvider.ts │ │ ├── index.ts │ │ ├── loaders.ts │ │ └── requireProvider.ts │ ├── moduleTypes.ts │ ├── preprocessor │ │ ├── __tests__ │ │ │ ├── analyzer.ts │ │ │ ├── directedGraph.ts │ │ │ ├── linker.ts │ │ │ ├── preprocessor.ts │ │ │ ├── resolver.ts │ │ │ └── transformers │ │ │ │ ├── hoistAndMergeImports.ts │ │ │ │ ├── removeExports.ts │ │ │ │ └── transformProgramToFunctionDeclaration.ts │ │ ├── analyzer.ts │ │ ├── bundler.ts │ │ ├── constructors │ │ │ └── contextSpecificConstructors.ts │ │ ├── directedGraph.ts │ │ ├── filePaths.ts │ │ ├── index.ts │ │ ├── linker.ts │ │ ├── resolver.ts │ │ └── transformers │ │ │ ├── hoistAndMergeImports.ts │ │ │ ├── removeExports.ts │ │ │ └── transformProgramToFunctionDeclaration.ts │ └── utils.ts ├── name-extractor │ ├── __tests__ │ │ ├── autocomplete.ts │ │ └── modules.ts │ └── index.ts ├── parser │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ ├── allowed-syntax.ts.snap │ │ │ └── fullTS.ts.snap │ │ ├── allowed-syntax.ts │ │ ├── disallowed-syntax.ts │ │ ├── fullTS.ts │ │ ├── python.ts │ │ └── tokenize.ts │ ├── errors.ts │ ├── fullJS │ │ └── index.ts │ ├── fullTS │ │ └── index.ts │ ├── parser.ts │ ├── python │ │ └── index.ts │ ├── scheme │ │ └── index.ts │ ├── source │ │ ├── index.ts │ │ ├── rules │ │ │ ├── bracesAroundFor.ts │ │ │ ├── bracesAroundIfElse.ts │ │ │ ├── bracesAroundWhile.ts │ │ │ ├── forStatementMustHaveAllParts.ts │ │ │ ├── index.ts │ │ │ ├── noDeclareMutable.ts │ │ │ ├── noDotAbbreviation.ts │ │ │ ├── noEval.ts │ │ │ ├── noExportNamedDeclarationWithDefault.ts │ │ │ ├── noExportNamedDeclarationWithSource.ts │ │ │ ├── noFunctionDeclarationWithoutIdentifier.ts │ │ │ ├── noHolesInArrays.ts │ │ │ ├── noIfWithoutElse.ts │ │ │ ├── noImplicitDeclareUndefined.ts │ │ │ ├── noImplicitReturnUndefined.ts │ │ │ ├── noImportSpecifierWithDefault.ts │ │ │ ├── noNull.ts │ │ │ ├── noSpreadInArray.ts │ │ │ ├── noTemplateExpression.ts │ │ │ ├── noTypeofOperator.ts │ │ │ ├── noUnspecifiedLiteral.ts │ │ │ ├── noUnspecifiedOperator.ts │ │ │ ├── noUpdateAssignment.ts │ │ │ ├── noVar.ts │ │ │ └── singleVariableDeclaration.ts │ │ ├── syntax.ts │ │ └── typed │ │ │ ├── index.ts │ │ │ ├── typeParser.ts │ │ │ └── utils.ts │ ├── types.ts │ └── utils.ts ├── repl │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ ├── svmc.ts.snap │ │ │ └── transpiler.ts.snap │ │ ├── main.ts │ │ ├── repl.ts │ │ ├── svmc.ts │ │ ├── transpiler.ts │ │ └── utils.ts │ ├── index.ts │ ├── main.ts │ ├── repl.ts │ ├── svmc.ts │ ├── transpiler.ts │ └── utils.ts ├── runner │ ├── __tests__ │ │ ├── execMethod.ts │ │ ├── files.ts │ │ ├── modules.ts │ │ └── runners.ts │ ├── errors.ts │ ├── fullJSRunner.ts │ ├── htmlRunner.ts │ ├── index.ts │ ├── sourceRunner.ts │ ├── types.ts │ └── utils.ts ├── scope-refactoring.ts ├── stdlib │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ └── parser.ts.snap │ │ ├── list-benchmark.ts │ │ ├── list.ts │ │ ├── localImport.ts │ │ ├── misc.ts │ │ ├── parser-errors.ts │ │ ├── parser.ts │ │ ├── pylib.ts │ │ └── stream.ts │ ├── index.ts │ ├── inspector.ts │ ├── list.prelude.ts │ ├── list.ts │ ├── localImport.prelude.ts │ ├── misc.ts │ ├── object.ts │ ├── parser.ts │ ├── pylib.ts │ ├── scheme.prelude.ts │ ├── stream.prelude.ts │ ├── stream.ts │ └── vm.prelude.ts ├── stepper │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ └── stepper.ts.snap │ │ └── stepper.ts │ ├── converter.ts │ ├── lib.ts │ ├── stepper.ts │ └── util.ts ├── tracer │ ├── README.md │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ └── tracer_full.ts.snap │ │ ├── tracer_debug.ts │ │ └── tracer_full.ts │ ├── builtins │ │ ├── auxiliary.ts │ │ ├── index.ts │ │ ├── lists.ts │ │ └── misc.ts │ ├── generator.ts │ ├── images │ │ └── tracer-1.png │ ├── index.ts │ ├── interface.ts │ ├── nodes │ │ ├── Expression │ │ │ ├── ArrayExpression.ts │ │ │ ├── ArrowFunctionExpression.ts │ │ │ ├── BinaryExpression.ts │ │ │ ├── BlockExpression.ts │ │ │ ├── ConditionalExpression.ts │ │ │ ├── FunctionApplication.ts │ │ │ ├── Identifier.ts │ │ │ ├── Literal.ts │ │ │ ├── LogicalExpression.ts │ │ │ └── UnaryExpression.ts │ │ ├── Program.ts │ │ ├── Statement │ │ │ ├── BlockStatement.ts │ │ │ ├── ExpressionStatement.ts │ │ │ ├── FunctionDeclaration.ts │ │ │ ├── IfStatement.ts │ │ │ ├── ReturnStatement.ts │ │ │ ├── VariableDeclaration.ts │ │ │ └── index.ts │ │ └── index.ts │ ├── steppers.ts │ ├── tracer_supplementary_slides.pdf │ └── utils.ts ├── transpiler │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ └── transpiled-code.ts.snap │ │ ├── native.ts │ │ └── transpiled-code.ts │ ├── evalContainer.ts │ └── transpiler.ts ├── typeChecker │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ └── source1Typed.test.ts.snap │ │ ├── source1Typed.test.ts │ │ ├── source2Typed.test.ts │ │ ├── source3Typed.test.ts │ │ ├── source4Typed.test.ts │ │ └── source4TypedModules.test.ts │ ├── internalTypeErrors.ts │ ├── parseTreeTypes.prelude.ts │ ├── tsESTree.ts │ ├── typeErrorChecker.ts │ └── utils.ts ├── types.ts ├── typings │ ├── acorn-loose.d.ts │ ├── astring.d.ts │ └── escodegen.d.ts ├── utils │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ └── rttc.ts.snap │ │ ├── buffer.ts │ │ ├── dict.ts │ │ ├── misc.ts │ │ ├── rttc.ts │ │ └── stringify.ts │ ├── assert.ts │ ├── ast │ │ ├── astCreator.ts │ │ ├── astToString.ts │ │ ├── dummyAstCreator.ts │ │ ├── helpers.ts │ │ └── typeGuards.ts │ ├── buffer.ts │ ├── dict.ts │ ├── formatters.ts │ ├── makeWrapper.ts │ ├── misc.ts │ ├── operators.ts │ ├── rttc.ts │ ├── statementSeqTransform.ts │ ├── stringify.ts │ ├── testing │ │ ├── __tests__ │ │ │ └── testing.ts │ │ ├── index.ts │ │ ├── misc.ts │ │ ├── mocks.ts │ │ ├── sanitizer.ts │ │ └── types.ts │ ├── uniqueIds.ts │ └── walkers.ts ├── validator │ ├── __tests__ │ │ ├── __snapshots__ │ │ │ └── validator.ts.snap │ │ └── validator.ts │ └── validator.ts └── vm │ ├── README.org │ ├── README.rst │ ├── __tests__ │ ├── svml-assembler.ts │ └── svml-compiler.ts │ ├── opcodes.ts │ ├── svml-assembler.ts │ ├── svml-compiler.ts │ ├── svml-scheduler.ts │ └── util.ts ├── tsconfig.json ├── tsconfig.prod.json └── yarn.lock /.babelrc: -------------------------------------------------------------------------------- 1 | { 2 | "presets": ["@babel/preset-env"] 3 | } 4 | -------------------------------------------------------------------------------- /.editorconfig: -------------------------------------------------------------------------------- 1 | [*] 2 | end_of_line = lf -------------------------------------------------------------------------------- /.github/dependabot.yml: -------------------------------------------------------------------------------- 1 | version: 2 2 | updates: 3 | - package-ecosystem: npm 4 | directory: "/" 5 | schedule: 6 | interval: monthly 7 | time: "07:00" 8 | open-pull-requests-limit: 0 # disabled for `renovate` migration (might switch back in the future) 9 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | *.js 3 | 4 | # docs 5 | !docs/jsdoc/templates/**/*.js 6 | !docs/lib/**/*.js 7 | docs/source 8 | 9 | *.map 10 | dist/ 11 | .idea/ 12 | coverage/ 13 | 14 | # emacs backup files 15 | *~ 16 | .DS_Store 17 | 18 | .vscode/ 19 | *.tsbuildinfo 20 | test-report.html 21 | 22 | # yarn files 23 | 24 | .yarn 25 | !.yarn/patches 26 | !.yarn/plugins 27 | !.yarn/releases 28 | !.yarn/sdks 29 | !.yarn/versions 30 | yarn-error.log -------------------------------------------------------------------------------- /.gitmodules: -------------------------------------------------------------------------------- 1 | [submodule "src/alt-langs/scheme/scm-slang"] 2 | path = src/alt-langs/scheme/scm-slang 3 | url = ../../source-academy/scm-slang.git 4 | [submodule "src/py-slang"] 5 | path = src/py-slang 6 | url = ../../source-academy/py-slang.git 7 | -------------------------------------------------------------------------------- /.husky/.gitignore: -------------------------------------------------------------------------------- 1 | _ 2 | -------------------------------------------------------------------------------- /.husky/pre-push: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | . "$(dirname "$0")/_/husky.sh" 3 | 4 | yarn format:ci && yarn eslint 5 | -------------------------------------------------------------------------------- /.node-version: -------------------------------------------------------------------------------- 1 | 20.11.0 2 | -------------------------------------------------------------------------------- /.prettierignore: -------------------------------------------------------------------------------- 1 | /src/alt-langs/ 2 | /src/py-slang/ 3 | /src/**/__tests__/**/__snapshots__ -------------------------------------------------------------------------------- /.prettierrc: -------------------------------------------------------------------------------- 1 | { 2 | "semi": false, 3 | "singleQuote": true, 4 | "printWidth": 100, 5 | "parser": "typescript", 6 | "trailingComma": "none", 7 | "arrowParens": "avoid", 8 | "endOfLine": "lf" 9 | } 10 | -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "restructuredtext.confPath": "", 3 | "restructuredtext.linter.disabled": true 4 | } -------------------------------------------------------------------------------- /.yarnrc.yml: -------------------------------------------------------------------------------- 1 | nodeLinker: node-modules 2 | -------------------------------------------------------------------------------- /docs/.gitignore: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/source-academy/js-slang/17bccf26ecec318970a23bf85b03e8b22a8a23df/docs/.gitignore -------------------------------------------------------------------------------- /docs/_config.yml: -------------------------------------------------------------------------------- 1 | theme: jekyll-theme-minimal 2 | -------------------------------------------------------------------------------- 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20 | -------------------------------------------------------------------------------- /docs/jsdoc/templates/template/tmpl/type.tmpl: -------------------------------------------------------------------------------- 1 | 5 | 6 | | 7 | -------------------------------------------------------------------------------- /docs/language_processing.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/source-academy/js-slang/17bccf26ecec318970a23bf85b03e8b22a8a23df/docs/language_processing.png -------------------------------------------------------------------------------- /docs/language_processing.pptx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/source-academy/js-slang/17bccf26ecec318970a23bf85b03e8b22a8a23df/docs/language_processing.pptx -------------------------------------------------------------------------------- /docs/lib/continuation.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Generate a continuation cont, 3 | * and call f(cont). 4 | * @param {function} f - A function of the form (cont) => ... 5 | * @returns the return value of f if cont is not consumed 6 | */ 7 | function call_cc(f) {} 8 | -------------------------------------------------------------------------------- /docs/lib/empty.js: -------------------------------------------------------------------------------- 1 | /** 2 | * there are no predeclared names here 3 | */ 4 | -------------------------------------------------------------------------------- /docs/lib/pairmutator.js: -------------------------------------------------------------------------------- 1 | /** 2 | * changes the pair p such that its head is x. 3 | * @param {pair} p - given pair 4 | * @param {value} x - given value 5 | * @returns {undefined} undefined 6 | */ 7 | function set_head(p, x) {} 8 | 9 | /** 10 | * changes the pair p such that its tail is x. 11 | * @param {pair} p - given pair 12 | * @param {value} x - given value 13 | * @returns {undefined} undefined 14 | */ 15 | function set_tail(p, x) {} 16 | -------------------------------------------------------------------------------- /docs/md/EV3_README.md: -------------------------------------------------------------------------------- 1 | The EV3 library lets you control the Lego Mindstorms EV3 robot. 2 | -------------------------------------------------------------------------------- /docs/md/GAME_README.md: -------------------------------------------------------------------------------- 1 | The GAME library allows customization of your room in the 2 | Source Academy game. 3 | -------------------------------------------------------------------------------- /docs/md/README.md: -------------------------------------------------------------------------------- 1 | Changelog: 2 | 3 | styles changed by MH on 1/7/2019, see styles/README.md 4 | -------------------------------------------------------------------------------- /docs/md/README_ARRAYS.md: -------------------------------------------------------------------------------- 1 | ARRAYS provides two useful functions for array processing. 2 | Click on a name on the right to see how they are defined and used. 3 | 4 | Arrays are not covered in 5 | the textbook 6 | Structure and Interpretation 7 | of Computer Programs, JavaScript Adaptation (SICP JS), 8 | but they are included in Source §3. 9 | -------------------------------------------------------------------------------- /docs/md/README_AUXILIARY.md: -------------------------------------------------------------------------------- 1 | On the right, you see all predeclared names of AUXILIARY, in alphabetical order. 2 | Click on a name to see how it is defined and used. 3 | 4 | Unlike MISC, the names declared in AUXILIARY are not meant to be directly called, although they can be. 5 | -------------------------------------------------------------------------------- /docs/md/README_BINARYTREES.md: -------------------------------------------------------------------------------- 1 | BINARYTREES provide functions for binary trees, as covered 2 | the textbook 3 | Structure and Interpretation 4 | of Computer Programs, JavaScript Adaptation (SICP JS) 5 | in 6 | section 2.3.3 Example: Representing Sets. 7 | Click on a name on the right to see how they are defined and used. 8 | -------------------------------------------------------------------------------- /docs/md/README_CONTINUATION.md: -------------------------------------------------------------------------------- 1 | CONTINUATION provides the function `call_cc` for generating and consuming continuations. 2 | Click on a name on the right to see how they are defined and used. 3 | 4 | Continuations in Source work similar to the call-with-current-continuation function in Scheme. -------------------------------------------------------------------------------- /docs/md/README_LISTS.md: -------------------------------------------------------------------------------- 1 | The functions in LISTS provide useful functions for list processing, 2 | as introduced on 3 | section 4 | 2.2 Hierarchical Data and the Closure Property 5 | of the textbook 6 | Structure and Interpretation 7 | of Computer Programs, JavaScript Adaptation (SICP JS). 8 | 9 | On the right, you see all predeclared LISTS functions, 10 | in alphabetical 11 | order. Click on a name to see how it is defined and used. 12 | -------------------------------------------------------------------------------- /docs/md/README_MCE.md: -------------------------------------------------------------------------------- 1 | MCE provides two useful functions for working with the 2 | meta-circular evaluator of Source. It also provides a Source lexer (tokeniser). 3 | Click on a name on the right to see how they are defined and used. 4 | 5 | The meta-circular evaluator of Source is covered in chapter 4 of 6 | the textbook 7 | Structure and Interpretation 8 | of Computer Programs, JavaScript Adaptation (SICP JS). 9 | -------------------------------------------------------------------------------- /docs/md/README_PAIRMUTATORS.md: -------------------------------------------------------------------------------- 1 | PAIRMUTATORS provides two functions for changing pairs. 2 | Click on a name on the right to see how they are defined and used. 3 | 4 | Pair mutation is covered in 5 | the textbook 6 | Structure and Interpretation 7 | of Computer Programs, JavaScript Adaptation (SICP JS) 8 | in 9 | section 3.3.1 Mutable List Structure. 10 | 11 | -------------------------------------------------------------------------------- /docs/md/README_STREAMS.md: -------------------------------------------------------------------------------- 1 | The functions in STREAMS provide useful functions for stream processing, 2 | as introduced on 3 | section 4 | 3.5 Stream Processing 5 | of the textbook 6 | Structure and Interpretation 7 | of Computer Programs, JavaScript Adaptation (SICP JS). 8 | 9 | On the right, you see all predeclared STREAMS functions, 10 | in alphabetical 11 | order. Click on a name to see how it is defined and used. 12 | -------------------------------------------------------------------------------- /docs/specs/.gitignore: -------------------------------------------------------------------------------- 1 | *.log 2 | *.aux 3 | *.out 4 | *~ 5 | *.pdf 6 | *.fdb_latexmk 7 | *.fls 8 | -------------------------------------------------------------------------------- /docs/specs/Makefile: -------------------------------------------------------------------------------- 1 | PDFLATEX = latexmk -pdf 2 | 3 | SPECSNUMS = 1 1_wasm 1_type_inference 1_infinite_loop_detection 1_typed 2 2_typed 3_type_inference 3 3_typed 4 4_explicitcontrol 4_typed styleguide 2_stepper studio_2 python_1 4 | 5 | SPECS = $(SPECSNUMS:%=source_%) 6 | 7 | PDFSPECS = $(SPECS:%=%.pdf) 8 | 9 | HELPERSTEX = $(HELPERS:%=source_%.tex) 10 | 11 | all: $(PDFSPECS) 12 | 13 | %.pdf: %.tex 14 | $(PDFLATEX) $* 15 | 16 | clean: 17 | rm -f *~ *.dvi *.aux *.log *.ps *.out *.pdf 18 | -------------------------------------------------------------------------------- /docs/specs/source_2_stepper.tex: -------------------------------------------------------------------------------- 1 | \input source_header.tex 2 | 3 | \begin{document} 4 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5 | \docheader{2022}{Source}{\S 2 Stepper}{Martin Henz, Tan Yee Jian, Zhang Xinyi, Zhao Jingjing, \\ Zachary Chua, Peter Jung, Poomklao Teerawatthanaprapha, \\ Hao Sitong} 6 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 7 | 8 | \input source_2_stepper_rules 9 | 10 | \end{document} 11 | -------------------------------------------------------------------------------- /docs/specs/source_2_stepper_style.tex: -------------------------------------------------------------------------------- 1 | % Some helper macros for writing the stepper specs in a more idiomatic way 2 | 3 | \newcommand{\gentzen}[2]{\[ 4 | \frac{ 5 | #1 6 | }{ 7 | #2 8 | } 9 | \]} 10 | 11 | % Entry header 12 | \newcommand{\sEntry}[2]{\paragraph{#1:} #2} 13 | 14 | % Template variables 15 | \newcommand{\sVar}[1]{\textnormal{\textit{#1}}} 16 | % Template fixed values ("keywords") 17 | \newcommand{\sKw}[1]{\textbf{\texttt{#1}}} 18 | % Quickahhh 19 | \newcommand{\sCode}[1]{\textbf{\texttt{#1}}} 20 | % \newcommand{\sGentzen}[2]{\gentzen{\sCode{#1}}{\sCode{#2}}} 21 | -------------------------------------------------------------------------------- /docs/specs/source_arrays.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Arrays} 2 | 3 | Arrays in Source are created using literal array expressions: 4 | \begin{lstlisting} 5 | let my_array_1 = []; 6 | let my_array_2 = [42, 71, 13]; 7 | \end{lstlisting} 8 | Array access of the form $a$\lstinline{[}$i$\lstinline{]} has constant time complexity $\Theta(1)$. 9 | Array assignment the form $a$\lstinline{[}$n$\lstinline{] = }$x$ has a time complexity 10 | $O(n)$. 11 | -------------------------------------------------------------------------------- /docs/specs/source_comments.tex: -------------------------------------------------------------------------------- 1 | \subsection*{\href{https://sourceacademy.org/sicpjs/2.2.3\#footnote-8}{Comments}} 2 | 3 | In Source, any sequence of characters between ``\texttt{/*}'' and 4 | the next ``\texttt{*/}'' is ignored. 5 | 6 | After ``//'' any characters until the next newline character is ignored. 7 | -------------------------------------------------------------------------------- /docs/specs/source_continuation.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Continuation Support} 2 | \label{conc_supp} 3 | The following functions are supported for generating and consuming continuations: 4 | 5 | \begin{itemize} 6 | \item \texttt{call\_cc(f)}: \(\textit{primitive}\), generates a coninuation \texttt{cont} and calls \texttt{f(cont)}. This is an atomic operation. 7 | \end{itemize} 8 | -------------------------------------------------------------------------------- /docs/specs/source_export.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Export directives} 2 | 3 | Export directives allow programs to export values from modules and bind them to names, so that they can be imported by other modules. Export directives can only appear at the top-level, and hence can only export top-level variables. 4 | -------------------------------------------------------------------------------- /docs/specs/source_import.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Import directives} 2 | 3 | Import directives allow programs to import values from modules and bind them to names, whose scope 4 | is the entire program in which the import directive occurs. Import directives can only appear at the top-level. All names that appear in import directives 5 | must be distinct, and must also be distinct from all top-level variables. The Source specifications do not specify how modules are 6 | programmed. 7 | -------------------------------------------------------------------------------- /docs/specs/source_intro.tex: -------------------------------------------------------------------------------- 1 | The language Source is the official language of the textbook 2 | \href{https://sourceacademy.org/sicpjs/}{\color{DarkBlue}\emph{Structure and Interpretation 3 | of Computer Programs}, JavaScript Adaptation}. 4 | Source is a sublanguage of 5 | \href{http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf}{\color{DarkBlue} 6 | ECMAScript 2018 ($9^{\textrm{th}}$ Edition)} 7 | and defined in the documents titled ``Source \S $x$'', where $x$ refers to the 8 | respective textbook chapter. 9 | -------------------------------------------------------------------------------- /docs/specs/source_list_library.tex: -------------------------------------------------------------------------------- 1 | \section*{Appendix: List library} 2 | 3 | Those list library functions that are not primitive functions are pre-declared as follows: 4 | 5 | \input ../lib/list.js 6 | 7 | 8 | -------------------------------------------------------------------------------- /docs/specs/source_numbers.tex: -------------------------------------------------------------------------------- 1 | \subsection*{\href{https://sourceacademy.org/sicpjs/1.1.1\#p3}{Numbers}} 2 | 3 | We use decimal notation for numbers, with an optional decimal dot. ``Scientific notation'' 4 | (multiplying the number with $10^x$) is indicated with the letter \texttt{e}, followed 5 | by the exponent $x$. 6 | Examples for numbers are \texttt{5432}, \texttt{-5432.109}, and \texttt{-43.21e-45}. 7 | -------------------------------------------------------------------------------- /docs/specs/source_object_support.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Object Support} 2 | 3 | The following object-processing function is supported: 4 | 5 | \begin{itemize} 6 | \item \lstinline{is_object(x)}: \textit{primitive}, returns 7 | returns \texttt{true} if \texttt{x} is an object, and \texttt{false} if it is not. 8 | \end{itemize} 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /docs/specs/source_pair_mutators.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Pair Mutators} 2 | 3 | The following pair mutator functions are supported: 4 | 5 | \begin{itemize} 6 | \item \lstinline{set_head(p, x)}: \textit{primitive}, changes the pair \lstinline{p} such that its head is \lstinline{x}. 7 | Returns \lstinline{undefined}. 8 | \item \lstinline{set_tail(p, x)}: \textit{primitive}, changes the pair \lstinline{p} such that its tail is \lstinline{x}. 9 | Returns \lstinline{undefined}. 10 | \end{itemize} 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /docs/specs/source_parse_tree_types.tex: -------------------------------------------------------------------------------- 1 | \section*{Appendix: Parse Tree Types} 2 | 3 | The types for the result of the parse function are as follows: 4 | 5 | \input ../lib/parsetreetypes.js 6 | -------------------------------------------------------------------------------- /docs/specs/source_python_comments.tex: -------------------------------------------------------------------------------- 1 | \subsection*{\href{https://sourceacademy.org/sicpjs/2.2.3\#footnote-8}{Comments}} 2 | 3 | In Python \S 1, any characters after ``\#'' until the next newline character is ignored. 4 | -------------------------------------------------------------------------------- /docs/specs/source_python_import.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Import directives} 2 | 3 | Import directives allow programs to import values from modules and bind them to names, whose scope 4 | is the entire program in which the import directive occurs. Import directives can only appear at the top-level. All names that appear in import directives 5 | must be distinct, and must also be distinct from all top-level variables. The specifications do not specify how modules are 6 | programmed. 7 | -------------------------------------------------------------------------------- /docs/specs/source_python_integers.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Integers} 2 | 3 | We represent integers as whole numbers without any decimal component. Integers can be positive, negative or zero. Integers have arbitrary-precision, meaning they can represent extremely large values without loss of precision. Integers are automatically converted to floats as needed. -------------------------------------------------------------------------------- /docs/specs/source_python_numbers.tex: -------------------------------------------------------------------------------- 1 | \subsection*{\href{https://sourceacademy.org/sicpjs/1.1.1\#p3}{Floating-point Numbers}} 2 | 3 | We use decimal notation for numbers, with an optional decimal dot. ``Scientific notation'' 4 | (multiplying the number with $10^x$) is indicated with the letter \texttt{e}, followed 5 | by the exponent $x$. 6 | Examples for numbers are \texttt{5432}, \texttt{-5432.109}, and \texttt{-43.21e-45}. 7 | 8 | -------------------------------------------------------------------------------- /docs/specs/source_python_return.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Restrictions} 2 | 3 | \begin{itemize} 4 | \item 5 | Single assignment language: Each variable 6 | can be assigned a value only once during its 7 | lifetime. 8 | 9 | \item 10 | Operators do not implicitly cast boolean 11 | values to integers. Booleans cannot be used 12 | interchangeably with integers in operations. 13 | 14 | \item 15 | Scope restriction: Each variable 16 | can only be accessed in the block it is 17 | declared. 18 | \end{itemize} 19 | 20 | -------------------------------------------------------------------------------- /docs/specs/source_standard.tex: -------------------------------------------------------------------------------- 1 | \section{Standard Library} 2 | 3 | The standard library contains constants and functions 4 | that are always available in this language. 5 | The functions indicated as \emph{primitive} are built into the 6 | language implementations. All others are considered 7 | \emph{predeclared} and implemented using the primitive functions. 8 | -------------------------------------------------------------------------------- /docs/specs/source_stream_library.tex: -------------------------------------------------------------------------------- 1 | \section*{Appendix: Stream library} 2 | 3 | Those stream library functions that are not primitive functions are pre-declared as follows: 4 | 5 | \input ../lib/stream.js 6 | -------------------------------------------------------------------------------- /docs/specs/source_studio_2_return.tex: -------------------------------------------------------------------------------- 1 | \subsection*{Restrictions} 2 | 3 | \begin{itemize} 4 | \item There cannot be any newline character between 5 | $\textbf{\texttt{return}}$ and $\textit{expression}$ in return statements.\footnote{ 6 | Source inherits this syntactic quirk of JavaScript.} 7 | \end{itemize} 8 | -------------------------------------------------------------------------------- /renovate.json: -------------------------------------------------------------------------------- 1 | { 2 | "$schema": "https://docs.renovatebot.com/renovate-schema.json", 3 | "extends": [ 4 | "config:base", ":dependencyDashboard", "group:allNonMajor", ":label(dependencies)" 5 | ], 6 | "major": { 7 | "dependencyDashboardApproval": true 8 | }, 9 | "packageRules": [ 10 | { 11 | "matchPackagePatterns": ["*"], 12 | "rangeStrategy": "update-lockfile" 13 | } 14 | ], 15 | "enabledManagers": ["npm"] 16 | } 17 | -------------------------------------------------------------------------------- /scripts/publish_sicp_package.sh: -------------------------------------------------------------------------------- 1 | #! /bin/bash 2 | 3 | publish() { 4 | cd sicp_publish 5 | npm version patch 6 | npm publish 7 | } 8 | 9 | publish -------------------------------------------------------------------------------- /sicp_publish/.gitignore: -------------------------------------------------------------------------------- 1 | names.txt 2 | prelude.txt 3 | prelude_names.txt 4 | -------------------------------------------------------------------------------- /src/__tests__/sicp/.gitignore: -------------------------------------------------------------------------------- 1 | !*.js -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/1.js: -------------------------------------------------------------------------------- 1 | 486; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/10.js: -------------------------------------------------------------------------------- 1 | 3 / 5 * 2 - 4 + 3; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/11.js: -------------------------------------------------------------------------------- 1 | (((3 / 5) * 2) - 4) + 3; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/12.js: -------------------------------------------------------------------------------- 1 | 3 * 2 * (4 + (3 - 5)) + 10 * (27 / 6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/13.js: -------------------------------------------------------------------------------- 1 | 3 * 2 * (4 + (3 - 5)) 2 | + 3 | 10 * (27 / 6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/2.js: -------------------------------------------------------------------------------- 1 | 137 + 349; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/3.js: -------------------------------------------------------------------------------- 1 | 1000 - 334; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/4.js: -------------------------------------------------------------------------------- 1 | 5 * 99; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/5.js: -------------------------------------------------------------------------------- 1 | 10 / 5; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/6.js: -------------------------------------------------------------------------------- 1 | 2.7 + 10; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/7.js: -------------------------------------------------------------------------------- 1 | (3 * 5) + (10 - 6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/8.js: -------------------------------------------------------------------------------- 1 | 3 * 5 + 10 / 2; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection1/9.js: -------------------------------------------------------------------------------- 1 | (3 * 5) + (10 / 2); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/1.js: -------------------------------------------------------------------------------- 1 | const size = 2; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/2.js: -------------------------------------------------------------------------------- 1 | const size = 2; 2 | size; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/3.js: -------------------------------------------------------------------------------- 1 | const size = 2; 2 | 5 * size; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/4.js: -------------------------------------------------------------------------------- 1 | const pi = 3.14159; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/5.js: -------------------------------------------------------------------------------- 1 | const radius = 10; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/6.js: -------------------------------------------------------------------------------- 1 | const pi = 3.14159; 2 | const radius = 10; 3 | pi * radius * radius; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/7.js: -------------------------------------------------------------------------------- 1 | const pi = 3.14159; 2 | const radius = 10; 3 | const circumference = 2 * pi * radius; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection2/8.js: -------------------------------------------------------------------------------- 1 | const circumference = 2 * pi * radius; 2 | circumference; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection3/1.js: -------------------------------------------------------------------------------- 1 | (2 + 4 * 6) * (3 + 12); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection4/1.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | 5 | square(14); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection4/2.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | square(21); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection4/3.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | square(2 + 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection4/4.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | square(square(3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection4/5.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function sum_of_squares(x,y) { 5 | return square(x) + square(y); 6 | } 7 | 8 | sum_of_squares(3,4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection4/6.js: -------------------------------------------------------------------------------- 1 | function sum_of_squares(x,y) { 2 | return square(x) + square(y); 3 | } 4 | function square(x) { 5 | return x * x; 6 | } 7 | function f(a) { 8 | return sum_of_squares(a + 1, a * 2); 9 | } 10 | 11 | f(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection5/1.js: -------------------------------------------------------------------------------- 1 | function f(a) { 2 | return sum_of_squares(a + 1, a * 2); 3 | } 4 | f(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/1.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | 5 | abs(-5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/10.js: -------------------------------------------------------------------------------- 1 | const a = 3; 2 | const b = a + 1; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/11.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | a + b + a * b; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/12.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | a === b; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/13.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | b > a && b < a * b 3 | ? b : a; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/14.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | a === 4 ? 6 : b === 4 ? 6 + 7 + a : 25; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/15.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | 2 + (b > a ? b : a); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/16.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | (a > b 3 | ? a 4 | : a < b 5 | ? b 6 | : -1) 7 | * 8 | (a + 1); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/17.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | a === 4 ? 6 : b === 4 ? 6 + 7 + a : 25; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/18.js: -------------------------------------------------------------------------------- 1 | const b = a + 1; 2 | a === 4 3 | ? 6 4 | : b === 4 5 | ? 6 + 7 + a 6 | : 25; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/19.js: -------------------------------------------------------------------------------- 1 | function plus(a, b) { return a + b; } 2 | function minus(a, b) { return a - b; } 3 | function a_plus_abs_b(a, b) { 4 | return (b >= 0 ? plus : minus)(a, b); 5 | } 6 | 7 | a_plus_abs_b(5, -4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/2.js: -------------------------------------------------------------------------------- 1 | function not_equal(x, y) { 2 | return x > y || x < y; 3 | } 4 | 5 | not_equal(7, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/20.js: -------------------------------------------------------------------------------- 1 | function p() { 2 | return p(); 3 | } 4 | 5 | function test(x, y) { 6 | return x === 0 ? 0 : y; 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/21.js: -------------------------------------------------------------------------------- 1 | function p() { 2 | return p(); 3 | } 4 | 5 | function test(x, y) { 6 | return x === 0 ? 0 : y; 7 | } 8 | test(0, p()); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/3.js: -------------------------------------------------------------------------------- 1 | function not_equal(x, y) { 2 | return !(x >= y && x <= y); 3 | } 4 | 5 | not_equal(7, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/4.js: -------------------------------------------------------------------------------- 1 | 10; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/5.js: -------------------------------------------------------------------------------- 1 | 5 + 3 + 4; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/6.js: -------------------------------------------------------------------------------- 1 | 9 - 1; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/7.js: -------------------------------------------------------------------------------- 1 | 6 / 2; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/8.js: -------------------------------------------------------------------------------- 1 | 2 * 4 + (4 - 6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection6/9.js: -------------------------------------------------------------------------------- 1 | const a = 3; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/1.js: -------------------------------------------------------------------------------- 1 | function good_enough(guess, x) { 2 | return abs(square(guess) - x) < 0.001; 3 | } 4 | function abs(x) { 5 | return x >= 0 ? x : -x; 6 | } 7 | function square(x) { 8 | return x * x; 9 | } 10 | function improve(guess, x) { 11 | return average(guess, x / guess); 12 | } 13 | function average(x,y) { 14 | return (x + y) / 2; 15 | } 16 | function sqrt_iter(guess, x) { 17 | return good_enough(guess, x) 18 | ? guess 19 | : sqrt_iter(improve(guess, x), x); 20 | } 21 | 22 | sqrt_iter(3,25); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/10.js: -------------------------------------------------------------------------------- 1 | function conditional(predicate, then_clause, else_clause) { 2 | return predicate ? then_clause : else_clause; 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/11.js: -------------------------------------------------------------------------------- 1 | function conditional(predicate, then_clause, else_clause) { 2 | return predicate ? then_clause : else_clause; 3 | } 4 | conditional(2 === 3, 0, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/12.js: -------------------------------------------------------------------------------- 1 | function conditional(predicate, then_clause, else_clause) { 2 | return predicate ? then_clause : else_clause; 3 | } 4 | conditional(1 === 1, 0, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/13.js: -------------------------------------------------------------------------------- 1 | function conditional(predicate, then_clause, else_clause) { 2 | return predicate ? then_clause : else_clause; 3 | } 4 | function good_enough(guess, x) { 5 | return abs(square(guess) - x) < 0.001; 6 | } 7 | function improve(guess, x) { 8 | return average(guess, x / guess); 9 | } 10 | function sqrt_iter(guess, x) { 11 | return conditional(good_enough(guess, x), 12 | guess, 13 | sqrt_iter(improve(guess, x), 14 | x)); 15 | } 16 | 17 | sqrt_iter(3,25); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/2.js: -------------------------------------------------------------------------------- 1 | function average(x,y) { 2 | return (x + y) / 2; 3 | } 4 | function improve(guess, x) { 5 | return average(guess, x / guess); 6 | } 7 | 8 | improve(3, 25); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/3.js: -------------------------------------------------------------------------------- 1 | function average(x,y) { 2 | return (x + y) / 2; 3 | } 4 | 5 | average(3, 6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/4.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | function square(x) { 5 | return x * x; 6 | } 7 | function good_enough(guess, x) { 8 | return abs(square(guess) - x) < 0.001; 9 | } 10 | 11 | good_enough(1.41, 2); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/7.js: -------------------------------------------------------------------------------- 1 | function sqrt(x) { 2 | return sqrt_iter(1, x); 3 | } 4 | sqrt(100 + 37); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/8.js: -------------------------------------------------------------------------------- 1 | function sqrt(x) { 2 | return sqrt_iter(1, x); 3 | } 4 | sqrt(sqrt(2) + sqrt(3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection7/9.js: -------------------------------------------------------------------------------- 1 | function sqrt(x) { 2 | return sqrt_iter(1, x); 3 | } 4 | square(sqrt(1000)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection8/1.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | 5 | square(14); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection8/2.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return math_exp(double(math_log(x))); 3 | } 4 | function double(x) { 5 | return x + x; 6 | } 7 | 8 | square(14); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection8/3.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | 5 | square(14); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection8/4.js: -------------------------------------------------------------------------------- 1 | function square(y) { 2 | return y * y; 3 | } 4 | 5 | square(14); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section1/subsection8/5.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | function square(x) { 5 | return x * x; 6 | } 7 | function good_enough(guess, x) { 8 | return abs(square(guess) - x) < 0.001; 9 | } 10 | 11 | good_enough(1.41, 2); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/1.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | return n === 1 3 | ? 1 4 | : n * factorial(n - 1); 5 | } 6 | 7 | factorial(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/10.js: -------------------------------------------------------------------------------- 1 | function A(x,y) { 2 | return y === 0 3 | ? 0 4 | : x === 0 5 | ? 2 * y 6 | : y === 1 7 | ? 2 8 | : A(x - 1, A(x, y - 1)); 9 | } 10 | function f(n) { 11 | return A(0, n); 12 | } 13 | function g(n) { 14 | return A(1, n); 15 | } 16 | function h(n) { 17 | return A(2, n); 18 | } 19 | function k(n) { 20 | return 5 * n * n; 21 | } 22 | 23 | k(4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/2.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | function iter(product, counter) { 3 | return counter > n 4 | ? product 5 | : iter(counter * product, 6 | counter + 1); 7 | } 8 | return iter(1, 1); 9 | } 10 | 11 | factorial(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/3.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | return fact_iter(1, 1, n); 3 | } 4 | function fact_iter(product, counter, max_count) { 5 | return counter > max_count 6 | ? product 7 | : fact_iter(counter * product, 8 | counter + 1, 9 | max_count); 10 | } 11 | 12 | factorial(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/4.js: -------------------------------------------------------------------------------- 1 | function inc(x) { 2 | return x + 1; 3 | } 4 | function dec(x) { 5 | return x - 1; 6 | } 7 | function plus(a, b) { 8 | return a === 0 ? b : inc(plus(dec(a), b)); 9 | } 10 | 11 | plus(4, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/5.js: -------------------------------------------------------------------------------- 1 | function inc(x) { 2 | return x + 1; 3 | } 4 | function dec(x) { 5 | return x - 1; 6 | } 7 | function plus(a, b) { 8 | return a === 0 ? b : plus(dec(a), inc(b)); 9 | } 10 | 11 | plus(4, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/6.js: -------------------------------------------------------------------------------- 1 | function A(x,y) { 2 | return y === 0 3 | ? 0 4 | : x === 0 5 | ? 2 * y 6 | : y === 1 7 | ? 2 8 | : A(x - 1, A(x, y - 1)); 9 | } 10 | 11 | A(1, 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/7.js: -------------------------------------------------------------------------------- 1 | function A(x,y) { 2 | return y === 0 3 | ? 0 4 | : x === 0 5 | ? 2 * y 6 | : y === 1 7 | ? 2 8 | : A(x - 1, A(x, y - 1)); 9 | } 10 | A(1, 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/8.js: -------------------------------------------------------------------------------- 1 | function A(x,y) { 2 | return y === 0 3 | ? 0 4 | : x === 0 5 | ? 2 * y 6 | : y === 1 7 | ? 2 8 | : A(x - 1, A(x, y - 1)); 9 | } 10 | A(2, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection1/9.js: -------------------------------------------------------------------------------- 1 | function A(x,y) { 2 | return y === 0 3 | ? 0 4 | : x === 0 5 | ? 2 * y 6 | : y === 1 7 | ? 2 8 | : A(x - 1, A(x, y - 1)); 9 | } 10 | A(3, 3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function fib(n) { 2 | return n === 0 3 | ? 0 4 | : n === 1 5 | ? 1 6 | : fib(n - 1) + fib(n - 2); 7 | } 8 | 9 | fib(6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection2/2.js: -------------------------------------------------------------------------------- 1 | function fib(n) { 2 | return fib_iter(1, 0, n); 3 | } 4 | function fib_iter(a, b, count) { 5 | return count === 0 6 | ? b 7 | : fib_iter(a + b, a, count - 1); 8 | } 9 | 10 | fib(6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection3/1.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | function cube(x) { 5 | return x * x * x; 6 | } 7 | function p(x) { 8 | return 3 * x - 4 * cube(x); 9 | } 10 | function sine(angle) { 11 | return !(abs(angle) > 0.1) 12 | ? angle 13 | : p(sine(angle / 3.0)); 14 | } 15 | 16 | sine(math_PI / 2); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection4/1.js: -------------------------------------------------------------------------------- 1 | function expt(b,n) { 2 | return n === 0 3 | ? 1 4 | : b * expt(b, n - 1); 5 | } 6 | 7 | expt(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection4/2.js: -------------------------------------------------------------------------------- 1 | function expt(b,n) { 2 | return expt_iter(b,n,1); 3 | } 4 | function expt_iter(b,counter,product) { 5 | return counter === 0 6 | ? product 7 | : expt_iter(b, 8 | counter - 1, 9 | b * product); 10 | } 11 | 12 | expt(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection4/3.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function is_even(n) { 5 | return n % 2 === 0; 6 | } 7 | function fast_expt(b, n) { 8 | return n === 0 9 | ? 1 10 | : is_even(n) 11 | ? square(fast_expt(b, n / 2)) 12 | : b * fast_expt(b, n - 1); 13 | } 14 | 15 | fast_expt(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection4/4.js: -------------------------------------------------------------------------------- 1 | function is_even(n) { 2 | return n % 2 === 0; 3 | } 4 | 5 | is_even(7); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection4/5.js: -------------------------------------------------------------------------------- 1 | function times(a,b) { 2 | return b === 0 3 | ? 0 4 | : a + times(a, b - 1); 5 | } 6 | 7 | times(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection5/1.js: -------------------------------------------------------------------------------- 1 | function gcd(a, b) { 2 | return b === 0 ? a : gcd(b, a % b); 3 | } 4 | 5 | gcd(20, 12); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection6/1.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function smallest_divisor(n) { 5 | return find_divisor(n, 2); 6 | } 7 | function find_divisor(n, test_divisor) { 8 | return square(test_divisor) > n 9 | ? n 10 | : divides(test_divisor, n) 11 | ? test_divisor 12 | : find_divisor(n, test_divisor + 1); 13 | } 14 | function divides(a, b) { 15 | return b % a === 0; 16 | } 17 | 18 | smallest_divisor(42); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection6/2.js: -------------------------------------------------------------------------------- 1 | function smallest_divisor(n) { 2 | return find_divisor(n, 2); 3 | } 4 | function find_divisor(n, test_divisor) { 5 | return square(test_divisor) > n 6 | ? n 7 | : divides(test_divisor, n) 8 | ? test_divisor 9 | : find_divisor(n, test_divisor + 1); 10 | } 11 | function divides(a, b) { 12 | return b % a === 0; 13 | } 14 | function square(x) { 15 | return x * x; 16 | } 17 | function is_prime(n) { 18 | return n === smallest_divisor(n); 19 | } 20 | 21 | is_prime(42); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection6/3.js: -------------------------------------------------------------------------------- 1 | function is_even(n) { 2 | return n % 2 === 0; 3 | } 4 | function square(x) { 5 | return x * x; 6 | } 7 | function expmod(base, exp, m) { 8 | return exp === 0 9 | ? 1 10 | : is_even(exp) 11 | ? square(expmod(base, exp / 2, m)) % m 12 | : (base * expmod(base, exp - 1, m)) % m; 13 | } 14 | 15 | expmod(4, 3, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection6/7.js: -------------------------------------------------------------------------------- 1 | function fast_expt(b, n) { 2 | return n === 0 3 | ? 1 4 | : is_even(n) 5 | ? square(fast_expt(b, n / 2)) 6 | : b * fast_expt(b, n - 1); 7 | } 8 | function expmod(base, exp, m) { 9 | return fast_expt(base, exp) % m; 10 | } 11 | 12 | expmod(4, 3, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section2/subsection6/8.js: -------------------------------------------------------------------------------- 1 | function is_even(n) { 2 | return n % 2 === 0; 3 | } 4 | function expmod(base, exp, m) { 5 | return exp === 0 6 | ? 1 7 | : is_even(exp) 8 | ? expmod(base, exp / 2, m) 9 | * expmod(base, exp / 2, m) 10 | % m 11 | : base 12 | * expmod(base, exp - 1, m) 13 | % m; 14 | } 15 | 16 | expmod(4, 3, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/1.js: -------------------------------------------------------------------------------- 1 | function sum_integers(a, b) { 2 | return a > b 3 | ? 0 4 | : a + sum_integers(a + 1, b); 5 | } 6 | 7 | sum_integers(1, 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/10.js: -------------------------------------------------------------------------------- 1 | function pi_sum(a, b) { 2 | function pi_term(x) { 3 | return 1.0 / (x * (x + 2)); 4 | } 5 | function pi_next(x) { 6 | return x + 4; 7 | } 8 | return sum(pi_term, a, pi_next, b); 9 | } 10 | function sum(term, a, next, b) { 11 | return a > b 12 | ? 0 13 | : term(a) + sum(term, next(a), next, b); 14 | } 15 | 8 * pi_sum(1, 1000); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/11.js: -------------------------------------------------------------------------------- 1 | function sum(term, a, next, b) { 2 | return a > b 3 | ? 0 4 | : term(a) + sum(term, next(a), next, b); 5 | } 6 | function integral(f, a, b, dx) { 7 | function add_dx(x) { 8 | return x + dx; 9 | } 10 | return sum(f, a + dx / 2, add_dx, b) * dx; 11 | } 12 | 13 | integral(cube, 0, 1, 0.01); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/12.js: -------------------------------------------------------------------------------- 1 | function cube(x) { 2 | return x * x * x; 3 | } 4 | function integral(f, a, b, dx) { 5 | function add_dx(x) { 6 | return x + dx; 7 | } 8 | return sum(f, a + dx / 2, add_dx, b) * dx; 9 | } 10 | function sum(term, a, next, b) { 11 | return a > b 12 | ? 0 13 | : term(a) + sum(term, next(a), next, b); 14 | } 15 | integral(cube, 0, 1, 0.01); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/13.js: -------------------------------------------------------------------------------- 1 | function cube(x) { 2 | return x * x * x; 3 | } 4 | function integral(f, a, b, dx) { 5 | function add_dx(x) { 6 | return x + dx; 7 | } 8 | return sum(f, a + dx / 2, add_dx, b) * dx; 9 | } 10 | function sum(term, a, next, b) { 11 | return a > b 12 | ? 0 13 | : term(a) + sum(term, next(a), next, b); 14 | } 15 | integral(cube, 0, 1, 0.005); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/2.js: -------------------------------------------------------------------------------- 1 | function cube(x) { 2 | return x * x * x; 3 | } 4 | function sum_cubes(a, b) { 5 | return a > b 6 | ? 0 7 | : cube(a) + sum_cubes(a + 1, b); 8 | } 9 | 10 | sum_cubes(3, 7); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/3.js: -------------------------------------------------------------------------------- 1 | function pi_sum(a, b) { 2 | return a > b 3 | ? 0 4 | : 1.0 / (a * (a + 2)) + 5 | pi_sum(a + 4, b); 6 | } 7 | 8 | 8 * pi_sum(1, 1000); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/4.js: -------------------------------------------------------------------------------- 1 | function cube(x) { 2 | return x * x * x; 3 | } 4 | function sum(term, a, next, b) { 5 | return a > b 6 | ? 0 7 | : term(a) + sum(term, next(a), next, b); 8 | } 9 | function inc(n) { 10 | return n + 1; 11 | } 12 | function sum_cubes(a, b) { 13 | return sum(cube, a, inc, b); 14 | } 15 | 16 | sum_cubes(1, 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/5.js: -------------------------------------------------------------------------------- 1 | function inc(n) { 2 | return n + 1; 3 | } 4 | function sum_cubes(a, b) { 5 | return sum(cube, a, inc, b); 6 | } 7 | function cube(x) { 8 | return x * x * x; 9 | } 10 | function sum(term, a, next, b) { 11 | return a > b 12 | ? 0 13 | : term(a) + sum(term, next(a), next, b); 14 | } 15 | sum_cubes(1, 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/6.js: -------------------------------------------------------------------------------- 1 | function identity(x) { 2 | return x; 3 | } 4 | 5 | identity(42); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/7.js: -------------------------------------------------------------------------------- 1 | function sum(term, a, next, b) { 2 | return a > b 3 | ? 0 4 | : term(a) + sum(term, next(a), next, b); 5 | } 6 | function inc(n) { 7 | return n + 1; 8 | } 9 | function identity(x) { 10 | return x; 11 | } 12 | function sum_integers(a, b) { 13 | return sum(identity, a, inc, b); 14 | } 15 | 16 | sum_integers(1, 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/8.js: -------------------------------------------------------------------------------- 1 | function sum_integers(a, b) { 2 | return sum(identity, a, inc, b); 3 | } 4 | function sum(term, a, next, b) { 5 | return a > b 6 | ? 0 7 | : term(a) + sum(term, next(a), next, b); 8 | } 9 | function inc(n) { 10 | return n + 1; 11 | } 12 | function identity(x) { 13 | return x; 14 | } 15 | sum_integers(1, 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection1/9.js: -------------------------------------------------------------------------------- 1 | function sum(term, a, next, b) { 2 | return a > b 3 | ? 0 4 | : term(a) + sum(term, next(a), next, b); 5 | } 6 | function pi_sum(a, b) { 7 | function pi_term(x) { 8 | return 1.0 / (x * (x + 2)); 9 | } 10 | function pi_next(x) { 11 | return x + 4; 12 | } 13 | return sum(pi_term, a, pi_next, b); 14 | } 15 | 16 | 8 * pi_sum(1, 1000); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/1.js: -------------------------------------------------------------------------------- 1 | x => x + 4; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/10.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function f(x, y) { 5 | const a = 1 + x * y; 6 | const b = 1 - y; 7 | return x * square(a) + 8 | y * b + 9 | a * b; 10 | } 11 | 12 | f(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/11.js: -------------------------------------------------------------------------------- 1 | function h() { 2 | const x = 1; 3 | function i() { 4 | const x = x + 1; 5 | return x; 6 | } 7 | return i(); 8 | } 9 | h(); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/12.js: -------------------------------------------------------------------------------- 1 | function is_even(n) { 2 | return n % 2 === 0; 3 | } 4 | function expmod(base, exp, m) { 5 | return exp === 0 6 | ? 1 7 | : is_even(exp) 8 | ? expmod(base, exp / 2, m) 9 | * expmod(base, exp / 2, m) 10 | % m 11 | : base 12 | * expmod(base, exp - 1, m) 13 | % m; 14 | } 15 | 16 | expmod(4, 3, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/13.js: -------------------------------------------------------------------------------- 1 | expmod(base, exp / 2, m) -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/14.js: -------------------------------------------------------------------------------- 1 | function is_even(n) { 2 | return n % 2 === 0; 3 | } 4 | function expmod(base, exp, m) { 5 | const to_half = expmod(base, exp / 2, m); 6 | return exp === 0 7 | ? 1 8 | : is_even(exp) 9 | ? to_half * to_half 10 | % m 11 | : base 12 | * expmod(base, exp - 1, m) 13 | % m; 14 | } 15 | 16 | expmod(4, 3, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/15.js: -------------------------------------------------------------------------------- 1 | function is_even(n) { 2 | return n % 2 === 0; 3 | } 4 | function expmod(base, exp, m) { 5 | if (exp === 0) { 6 | return 1; 7 | } else { 8 | if (is_even(exp)) { 9 | const to_half = expmod(base, exp / 2, m); 10 | return to_half * to_half % m; 11 | } else { 12 | return base * expmod(base, exp - 1, m) % m; 13 | } 14 | } 15 | } 16 | 17 | expmod(4, 3, 5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/16.js: -------------------------------------------------------------------------------- 1 | function f(g) { 2 | return g(2); 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/17.js: -------------------------------------------------------------------------------- 1 | function f(g) { 2 | return g(2); 3 | } 4 | function square(x) { 5 | return x * x; 6 | } 7 | f(square); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/18.js: -------------------------------------------------------------------------------- 1 | function f(g) { 2 | return g(2); 3 | } 4 | f(z => z * (z + 1)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/2.js: -------------------------------------------------------------------------------- 1 | x => 1.0 / (x * (x + 2)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/3.js: -------------------------------------------------------------------------------- 1 | function sum(term, a, next, b) { 2 | return a > b 3 | ? 0 4 | : term(a) + sum(term, next(a), next, b); 5 | } 6 | function pi_sum(a,b) { 7 | return sum(x => 1.0 / (x * (x + 2)), 8 | a, 9 | x => x + 4, 10 | b); 11 | } 12 | 13 | 8 * pi_sum(1, 1000); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/4.js: -------------------------------------------------------------------------------- 1 | function sum(term, a, next, b) { 2 | return a > b 3 | ? 0 4 | : term(a) + sum(term, next(a), next, b); 5 | } 6 | function cube(x) { 7 | return x * x * x; 8 | } 9 | function integral(f, a, b, dx) { 10 | return sum(f, 11 | a + dx / 2.0, 12 | x => x + dx, 13 | b) 14 | * 15 | dx; 16 | } 17 | 18 | integral(cube, 0, 1, 0.01); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/5.js: -------------------------------------------------------------------------------- 1 | function plus4(x) { return x + 4; } 2 | 3 | plus4(3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/6.js: -------------------------------------------------------------------------------- 1 | const plus4 = x => x + 4; 2 | 3 | plus4(3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/7.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | ((x, y, z) => x + y + square(z))(1, 2, 3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/8.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function f(x, y) { 5 | function f_helper(a, b) { 6 | return x * square(a) + 7 | y * b + 8 | a * b; 9 | } 10 | return f_helper(1 + x * y, 11 | 1 - y); 12 | } 13 | 14 | f(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection2/9.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function f(x,y) { 5 | return ( (a,b) => x * square(a) + 6 | y * b + 7 | a * b 8 | )(1 + x * y, 1 - y); 9 | } 10 | 11 | f(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection3/11.js: -------------------------------------------------------------------------------- 1 | // cont_frac to be written by student; see exercise 1.37 2 | cont_frac(i => 1.0, 3 | i => 1.0, 4 | k); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection3/2.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | function close_enough(x,y) { 5 | return abs(x - y) < 0.001; 6 | } 7 | 8 | close_enough(7.7654, 7.7666); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection3/6.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | const tolerance = 0.00001; 5 | function fixed_point(f, first_guess) { 6 | function close_enough(x, y) { 7 | return abs(x - y) < tolerance; 8 | } 9 | function try_with(guess) { 10 | const next = f(guess); 11 | return close_enough(guess, next) 12 | ? next 13 | : try_with(next); 14 | } 15 | return try_with(first_guess); 16 | } 17 | 18 | fixed_point(math_cos, 1.0); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection3/7.js: -------------------------------------------------------------------------------- 1 | const tolerance = 0.00001; 2 | function fixed_point(f, first_guess) { 3 | function close_enough(x, y) { 4 | return abs(x - y) < tolerance; 5 | } 6 | function try_with(guess) { 7 | const next = f(guess); 8 | return close_enough(guess, next) 9 | ? next 10 | : try_with(next); 11 | } 12 | return try_with(first_guess); 13 | } 14 | function abs(x) { 15 | return x >= 0 ? x : -x; 16 | } 17 | fixed_point(math_cos, 1.0); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection3/8.js: -------------------------------------------------------------------------------- 1 | const tolerance = 0.00001; 2 | function fixed_point(f, first_guess) { 3 | function close_enough(x, y) { 4 | return abs(x - y) < tolerance; 5 | } 6 | function try_with(guess) { 7 | const next = f(guess); 8 | return close_enough(guess, next) 9 | ? next 10 | : try_with(next); 11 | } 12 | return try_with(first_guess); 13 | } 14 | function abs(x) { 15 | return x >= 0 ? x : -x; 16 | } 17 | fixed_point( 18 | y => math_sin(y) + math_cos(y), 19 | 1.0); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/1.js: -------------------------------------------------------------------------------- 1 | function average(x,y) { 2 | return (x + y) / 2; 3 | } 4 | function average_damp(f) { 5 | return x => average(x, f(x)); 6 | } 7 | 8 | average_damp(square)(10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/14.js: -------------------------------------------------------------------------------- 1 | // double to be written by student; see EXERCISE 1.41 2 | function inc(n) { 3 | return n + 1; 4 | } 5 | double(double(double))(inc)(5); // ? -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/15.js: -------------------------------------------------------------------------------- 1 | // compose to be written by student; see EXERCISE 1.42 2 | function square(x) { 3 | return x * x; 4 | } 5 | function inc(n) { 6 | return n + 1; 7 | } 8 | compose(square, inc)(6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/16.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | // repeated to be written by student; see EXERCISE 1.43 5 | repeated(square, 2)(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/2.js: -------------------------------------------------------------------------------- 1 | function average_damp(f) { 2 | return x => average(x, f(x)); 3 | } 4 | function average(x,y) { 5 | return (x + y) / 2; 6 | } 7 | function square(x) { 8 | return x * x; 9 | } 10 | average_damp(square)(10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/5.js: -------------------------------------------------------------------------------- 1 | function deriv(g) { 2 | return x => (g(x + dx) - g(x)) / dx; 3 | } 4 | 5 | function cube(x) { return x * x * x; } 6 | 7 | deriv(cube)(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/6.js: -------------------------------------------------------------------------------- 1 | const dx = 0.00001; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter1/section3/subsection4/7.js: -------------------------------------------------------------------------------- 1 | const dx = 0.00001; 2 | function deriv(g) { 3 | return x => (g(x + dx) - g(x)) / dx; 4 | } 5 | function cube(x) { return x * x * x; } 6 | 7 | deriv(cube)(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/1.js: -------------------------------------------------------------------------------- 1 | const x = pair(1,2); 2 | 3 | head(x); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/10.js: -------------------------------------------------------------------------------- 1 | function print_rat(x) { 2 | display(numer(x)); 3 | display("-"); 4 | display(denom(x)); 5 | } 6 | function make_rat(n, d) { 7 | return pair(n, d); 8 | } 9 | function numer(x) { 10 | return head(x); 11 | } 12 | function denom(x) { 13 | return tail(x); 14 | } 15 | const one_third = make_rat(1, 3); 16 | 17 | print_rat(one_third); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/14.js: -------------------------------------------------------------------------------- 1 | function gcd(a, b) { 2 | return b === 0 ? a : gcd(b, a % b); 3 | } 4 | function make_rat(n, d) { 5 | const g = gcd(n, d); 6 | return pair(n / g, d / g); 7 | } 8 | 9 | make_rat(4,6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/2.js: -------------------------------------------------------------------------------- 1 | const x = pair(1,2); 2 | head(x); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/3.js: -------------------------------------------------------------------------------- 1 | const x = pair(1,2); 2 | tail(x); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/4.js: -------------------------------------------------------------------------------- 1 | const x = pair(1,2); 2 | const y = pair(3,4); 3 | const z = pair(x,y); 4 | 5 | head(head(z)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/5.js: -------------------------------------------------------------------------------- 1 | const x = pair(1,2); 2 | const y = pair(3,4); 3 | const z = pair(x,y); 4 | head(head(z)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/6.js: -------------------------------------------------------------------------------- 1 | const x = pair(1,2); 2 | const y = pair(3,4); 3 | const z = pair(x,y); 4 | head(tail(z)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/7.js: -------------------------------------------------------------------------------- 1 | function make_rat(n, d) { 2 | return pair(n, d); 3 | } 4 | function numer(x) { 5 | return head(x); 6 | } 7 | function denom(x) { 8 | return tail(x); 9 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/8.js: -------------------------------------------------------------------------------- 1 | function make_rat(n, d) { 2 | return pair(n, d); 3 | } 4 | function numer(x) { 5 | return head(x); 6 | } 7 | function denom(x) { 8 | return tail(x); 9 | } 10 | function print_rat(x) { 11 | display(numer(x)); 12 | display("-"); 13 | display(denom(x)); 14 | } 15 | 16 | const one_half = make_rat(1, 2); 17 | 18 | print_rat(one_half); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection1/9.js: -------------------------------------------------------------------------------- 1 | function print_rat(x) { 2 | display(numer(x)); 3 | display("-"); 4 | display(denom(x)); 5 | } 6 | function make_rat(n, d) { 7 | return pair(n, d); 8 | } 9 | function numer(x) { 10 | return head(x); 11 | } 12 | function denom(x) { 13 | return tail(x); 14 | } 15 | const one_half = make_rat(1, 2); 16 | 17 | print_rat(one_half); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function gcd(a, b) { 2 | return b === 0 ? a : gcd(b, a % b); 3 | } 4 | function make_rat(n, d) { 5 | return pair(n, d); 6 | } 7 | function numer(x) { 8 | const g = gcd(head(x), tail(x)); 9 | return head(x) / g; 10 | } 11 | function denom(x) { 12 | const g = gcd(head(x), tail(x)); 13 | return tail(x) / g; 14 | } 15 | 16 | function print_rat(x) { 17 | display(numer(x)); 18 | display("-"); 19 | display(denom(x)); 20 | } 21 | 22 | const one_half = make_rat(1, 2); 23 | 24 | print_rat(one_half); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection3/1.js: -------------------------------------------------------------------------------- 1 | function pair(x, y) { 2 | return m => 3 | m === 0 4 | ? x 5 | : m === 1 6 | ? y 7 | : error(m, "Argument not 0 or 1 in pair"); 8 | } 9 | function head(z) { 10 | return z(0); 11 | } 12 | function tail(z) { 13 | return z(1); 14 | } 15 | 16 | const x = pair(1,2); 17 | head(x); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection3/2.js: -------------------------------------------------------------------------------- 1 | function pair(x, y) { 2 | return m => m(x, y); 3 | } 4 | function head(z) { 5 | return z((p, q) => p); 6 | } 7 | 8 | const x = pair(1,2); 9 | head(x); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection3/3.js: -------------------------------------------------------------------------------- 1 | const zero = f => x => x; 2 | function add_1(n) { 3 | return f => x => f(n(f)(x)); 4 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section1/subsection4/4.js: -------------------------------------------------------------------------------- 1 | function make_interval(x, y) { 2 | return pair(x, y); 3 | } 4 | function lower_bound(i) { 5 | return head(i); 6 | } 7 | function upper_bound(i) { 8 | return tail(i); 9 | } 10 | function make_center_width(c, w) { 11 | return make_interval(c - w, c + w); 12 | } 13 | function center(i) { 14 | return (lower_bound(i) + upper_bound(i)) / 2; 15 | } 16 | function width(i) { 17 | return (upper_bound(i) - lower_bound(i)) / 2; 18 | } 19 | 20 | const my_interval = make_center_width(1, 0.5); 21 | width(my_interval); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/1.js: -------------------------------------------------------------------------------- 1 | pair(1, 2 | pair(2, 3 | pair(3, 4 | pair(4, null)))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/10.js: -------------------------------------------------------------------------------- 1 | function length(items) { 2 | return is_null(items) 3 | ? 0 4 | : 1 + length(tail(items)); 5 | } 6 | 7 | const odds = list(1, 3, 5, 7); 8 | length(odds); 9 | // returns: 4 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/11.js: -------------------------------------------------------------------------------- 1 | function length(items) { 2 | function length_iter(a, count) { 3 | return is_null(a) 4 | ? count 5 | : length_iter(tail(a), count + 1); 6 | } 7 | return length_iter(items, 0); 8 | } 9 | 10 | const odds = list(1, 3, 5, 7); 11 | length(odds); 12 | // returns: 4 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/12.js: -------------------------------------------------------------------------------- 1 | function append(list1, list2) { 2 | return is_null(list1) 3 | ? list2 4 | : pair(head(list1), append(tail(list1), list2)); 5 | } 6 | const squares = list(1, 4, 9, 16, 25); 7 | const squares = list(1, 3, 5, 7); 8 | append(squares, odds); 9 | 10 | // returns: [1, [4, [9, [16, [25, [1, [3, [5, [7, null]]]]]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/13.js: -------------------------------------------------------------------------------- 1 | // returns: [1, [4, [9, [16, [25, [1, [3, [5, [7, null]]]]]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/14.js: -------------------------------------------------------------------------------- 1 | function append(list1, list2) { 2 | return is_null(list1) 3 | ? list2 4 | : pair(head(list1), append(tail(list1), list2)); 5 | } 6 | const squares = list(1, 4, 9, 16, 25); 7 | const squares = list(1, 3, 5, 7); 8 | append(odds, squares); 9 | 10 | // returns: [1, [3, [5, [7, [1, [4, [9, [16, [25, null]]]]]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/15.js: -------------------------------------------------------------------------------- 1 | function append(list1, list2) { 2 | return is_null(list1) 3 | ? list2 4 | : pair(head(list1), append(tail(list1), list2)); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/16.js: -------------------------------------------------------------------------------- 1 | // last_pair to be given by student 2 | last_pair(list(23, 72, 149, 34)); 3 | // result: [34, null] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/17.js: -------------------------------------------------------------------------------- 1 | reverse(list(1, 4, 9, 16, 25)); 2 | // result: [25, [16, [9, [4, [1, null]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/18.js: -------------------------------------------------------------------------------- 1 | const us_coins = list(50, 25, 10, 5, 1); 2 | const uk_coins = list(100, 50, 20, 10, 5, 2, 1, 0.5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/2.js: -------------------------------------------------------------------------------- 1 | const one_through_four = list(1, 2, 3, 4); 2 | 3 | one_through_four; 4 | // displays: [1, [2, [3, [4, null]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/20.js: -------------------------------------------------------------------------------- 1 | // first_denomination, except_first_denomination 2 | // and no_more to be given by student 3 | function cc(amount, coin_values) { 4 | return amount === 0 5 | ? 1 6 | : amount < 0 || no_more(coin_values) 7 | ? 0 8 | : cc(amount, 9 | except_first_denomination(coin_values)) 10 | + 11 | cc(amount - first_denomination(coin_values), 12 | coin_values); 13 | } 14 | 15 | cc(100, us_coins); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/21.js: -------------------------------------------------------------------------------- 1 | function plus_curried(x) { 2 | return y => x + y; 3 | } 4 | 5 | plus_curried(3)(4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/22.js: -------------------------------------------------------------------------------- 1 | function plus_curried(x) { 2 | return y => x + y; 3 | } 4 | // brooks to be written by the student 5 | brooks(plus_curried, list(3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/23.js: -------------------------------------------------------------------------------- 1 | function plus_curried(x) { 2 | return y => x + y; 3 | } 4 | // brooks_curried to be written by the student 5 | brooks_curried(list(plus_curried, 3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/24.js: -------------------------------------------------------------------------------- 1 | function plus_curried(x) { 2 | return y => x + y; 3 | } 4 | // brooks_curried to be written by the student 5 | brooks_curried(list(brooks_curried, 6 | list(plus_curried, 3, 4))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/25.js: -------------------------------------------------------------------------------- 1 | function plus_curried(x) { 2 | return y => x + y; 3 | } 4 | // brooks_curried to be written by the student 5 | brooks_curried(list(brooks_curried, 6 | list(brooks_curried, 7 | list(plus_curried, 3, 4)))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/26.js: -------------------------------------------------------------------------------- 1 | function scale_list(items, factor) { 2 | return is_null(items) 3 | ? null 4 | : pair(head(items) * factor, 5 | scale_list(tail(items), factor)); 6 | } 7 | 8 | scale_list(list(1, 2, 3, 4, 5), 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/27.js: -------------------------------------------------------------------------------- 1 | function map(fun, items) { 2 | return is_null(items) 3 | ? null 4 | : pair(fun(head(items)), 5 | map(fun, tail(items))); 6 | } 7 | 8 | map(abs, list(-10, 2.5, -11.6, 17)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/28.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | function map(fun, items) { 5 | return is_null(items) 6 | ? null 7 | : pair(fun(head(items)), 8 | map(fun, tail(items))); 9 | } 10 | map(abs, list(-10, 2.5, -11.6, 17)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/29.js: -------------------------------------------------------------------------------- 1 | function map(fun, items) { 2 | return is_null(items) 3 | ? null 4 | : pair(fun(head(items)), 5 | map(fun, tail(items))); 6 | } 7 | map(x => x * x, list(1, 2, 3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/3.js: -------------------------------------------------------------------------------- 1 | const one_through_four = list(1, 2, 3, 4); 2 | head(one_through_four); 3 | // result: 1 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/30.js: -------------------------------------------------------------------------------- 1 | function scale_list(items, factor) { 2 | return map(x => x * factor, items); 3 | } 4 | 5 | scale_list(list(1, 2, 3, 4, 5), 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/31.js: -------------------------------------------------------------------------------- 1 | square_list(list(1, 2, 3, 4)); 2 | // returns: [1, [4, [9, [16, null]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/32.js: -------------------------------------------------------------------------------- 1 | function square_list(items) { 2 | return is_null(items) 3 | ? null 4 | : pair(??, ??); 5 | } 6 | 7 | square_list(list(1, 2, 3, 4)); 8 | // returns: [1, [4, [9, [16, null]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/33.js: -------------------------------------------------------------------------------- 1 | function square_list(items) { 2 | return map(??, ??); 3 | } 4 | 5 | square_list(list(1, 2, 3, 4)); 6 | // returns: [1, [4, [9, [16, null]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/34.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | // THIS IS NOT A CORRECT SOLUTION 5 | function square_list(items) { 6 | function iter(things, answer) { 7 | return is_null(things) 8 | ? answer 9 | : iter(tail(things), 10 | pair(square(head(things)), 11 | answer)); 12 | } 13 | return iter(items, null); 14 | } 15 | 16 | square_list(list(1, 2, 3, 4)); 17 | // returns: [1, [4, [9, [16, null]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/35.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | // THIS IS NOT A CORRECT SOLUTION 5 | function square_list(items) { 6 | function iter(things, answer) { 7 | return is_null(things) 8 | ? answer 9 | : iter(tail(things), 10 | pair(answer, 11 | square(head(things)))); 12 | } 13 | return iter(items, null); 14 | } 15 | 16 | square_list(list(1, 2, 3, 4)); 17 | // returns: [1, [4, [9, [16, null]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/36.js: -------------------------------------------------------------------------------- 1 | // for_each to be given by student 2 | for_each(x => display(x), 3 | list(57, 321, 88)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/4.js: -------------------------------------------------------------------------------- 1 | const one_through_four = list(1, 2, 3, 4); 2 | tail(one_through_four); 3 | // result: [2, [3, [4, null]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/5.js: -------------------------------------------------------------------------------- 1 | const one_through_four = list(1, 2, 3, 4); 2 | head(tail(one_through_four)); 3 | // result: 2 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/6.js: -------------------------------------------------------------------------------- 1 | const one_through_four = list(1, 2, 3, 4); 2 | pair(10, one_through_four); 3 | // result: [10, [1, [2, [3, [4, null]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/7.js: -------------------------------------------------------------------------------- 1 | const one_through_four = list(1, 2, 3, 4); 2 | pair(5, one_through_four); 3 | // result: [5, [1, [2, [3, [4, null]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/8.js: -------------------------------------------------------------------------------- 1 | function list_ref(items, n) { 2 | return n === 0 3 | ? head(items) 4 | : list_ref(tail(items), n - 1); 5 | } 6 | 7 | const squares = list(1, 4, 9, 16, 25); 8 | list_ref(squares, 3); 9 | // result: 16 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection1/9.js: -------------------------------------------------------------------------------- 1 | const squares = list(1, 4, 9, 16, 25); 2 | list_ref(squares, 3); 3 | // result: 16 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/1.js: -------------------------------------------------------------------------------- 1 | pair(list(1, 2), list(3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/10.js: -------------------------------------------------------------------------------- 1 | const x = list(1, 2, 3); 2 | 3 | const y = list(4, 5, 6); 4 | append(x, y); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/11.js: -------------------------------------------------------------------------------- 1 | const x = list(1, 2, 3); 2 | 3 | const y = list(4, 5, 6); 4 | pair(x, y); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/12.js: -------------------------------------------------------------------------------- 1 | const x = list(1, 2, 3); 2 | 3 | const y = list(4, 5, 6); 4 | list(x, y); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/13.js: -------------------------------------------------------------------------------- 1 | const x = list(list(1, 2), list(3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/14.js: -------------------------------------------------------------------------------- 1 | const x = list(list(1, 2), list(3, 4)); 2 | x; 3 | // [[1, [2, null]], [[3, [4, null]], null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/15.js: -------------------------------------------------------------------------------- 1 | const x = list(list(1, 2), list(3, 4)); 2 | reverse(x); 3 | // [[3, [4, null]], [[1, [2, null]], null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/16.js: -------------------------------------------------------------------------------- 1 | const x = list(list(1, 2), list(3, 4)); 2 | // deep_reverse to be written by student 3 | deep_reverse(x); 4 | // [[4, [3, null]], [[2, [1, null]], null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/17.js: -------------------------------------------------------------------------------- 1 | const x = list(list(1, 2), list(3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/18.js: -------------------------------------------------------------------------------- 1 | const x = list(list(1, 2), list(3, 4)); 2 | // fringe to be written by student 3 | fringe(x); 4 | // [1, [2, [3, [4, null]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/19.js: -------------------------------------------------------------------------------- 1 | const x = list(list(1, 2), list(3, 4)); 2 | // fringe to be written by student 3 | fringe(list(x, x)); 4 | // [1, [2, [3, [4, [1, [2, [3, [4, null]]]]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/2.js: -------------------------------------------------------------------------------- 1 | const x = pair(pair(1, pair(2,null)), pair(3, pair(4,null))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/20.js: -------------------------------------------------------------------------------- 1 | function make_mobile(left, right) { 2 | return list(left, right); 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/21.js: -------------------------------------------------------------------------------- 1 | function make_branch(length, structure) { 2 | return list(length, structure); 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/22.js: -------------------------------------------------------------------------------- 1 | function make_mobile(left, right) { 2 | return pair(left, right); 3 | } 4 | function make_branch(length, structure) { 5 | return pair(length, structure); 6 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/23.js: -------------------------------------------------------------------------------- 1 | function scale_tree(tree, factor) { 2 | return is_null(tree) 3 | ? null 4 | : ! is_pair(tree) 5 | ? tree * factor 6 | : pair(scale_tree(head(tree), factor), 7 | scale_tree(tail(tree), factor)); 8 | } 9 | 10 | scale_tree(list(1, list(2, list(3, 4), 5), list(6, 7)), 11 | 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/24.js: -------------------------------------------------------------------------------- 1 | function scale_tree(tree, factor) { 2 | return map(sub_tree => is_pair(sub_tree) 3 | ? scale_tree(sub_tree, factor) 4 | : sub_tree * factor, 5 | tree); 6 | } 7 | 8 | scale_tree(list(1, list(2, list(3, 4), 5), list(6, 7)), 9 | 10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/25.js: -------------------------------------------------------------------------------- 1 | // square_tree to be written by student 2 | square_tree(list(1, 3 | list(2, list(3, 4), 5), 4 | list(6, 7))); 5 | // result: [1, [[4, [[9, [16, null]], 6 | // [25, null]]], 7 | // [[36, [49, null]], null]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/26.js: -------------------------------------------------------------------------------- 1 | // tree_map to be written by student 2 | function square_tree(tree) { 3 | return tree_map(square, tree); 4 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/3.js: -------------------------------------------------------------------------------- 1 | const x = pair(pair(1, pair(2,null)), pair(3, pair(4,null))); 2 | length(x); 3 | // 3 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/4.js: -------------------------------------------------------------------------------- 1 | const x = pair(pair(1, pair(2,null)), pair(3, pair(4,null))); 2 | function count_leaves(x) { 3 | return is_null(x) 4 | ? 0 5 | : ! is_pair(x) 6 | ? 1 7 | : count_leaves(head(x)) + 8 | count_leaves(tail(x)); 9 | } 10 | count_leaves(x); 11 | // 4 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/5.js: -------------------------------------------------------------------------------- 1 | const x = pair(pair(1, pair(2,null)), pair(3, pair(4,null))); 2 | list(x, x); 3 | // [[[[1, [2, null]], [3, [4, null]]], 4 | // [[[1, [2, null]], [3, [4, null]]], null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/6.js: -------------------------------------------------------------------------------- 1 | const x = pair(pair(1, pair(2,null)), pair(3, pair(4,null))); 2 | length(list(x, x)); 3 | // 2 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/7.js: -------------------------------------------------------------------------------- 1 | const x = pair(pair(1, pair(2,null)), pair(3, pair(4,null))); 2 | function count_leaves(x) { 3 | return is_null(x) 4 | ? 0 5 | : ! is_pair(x) 6 | ? 1 7 | : count_leaves(head(x)) + 8 | count_leaves(tail(x)); 9 | } 10 | count_leaves(list(x, x)); 11 | // 8 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/8.js: -------------------------------------------------------------------------------- 1 | function count_leaves(x) { 2 | return is_null(x) 3 | ? 0 4 | : ! is_pair(x) 5 | ? 1 6 | : count_leaves(head(x)) + 7 | count_leaves(tail(x)); 8 | } 9 | 10 | count_leaves(pair(list(1, 2), list(3, 4))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection2/9.js: -------------------------------------------------------------------------------- 1 | const x = list(1, 2, 3); 2 | 3 | const y = list(4, 5, 6); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/1.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function is_odd(n) { 5 | return n % 2 === 1; 6 | } 7 | function sum_odd_squares(tree) { 8 | return is_null(tree) 9 | ? 0 10 | : ! is_pair(tree) 11 | ? (is_odd(tree) ? square(tree) : 0) 12 | : sum_odd_squares(head(tree)) 13 | + 14 | sum_odd_squares(tail(tree)); 15 | } 16 | 17 | sum_odd_squares(list(list(2, 3), list(4, 5))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/10.js: -------------------------------------------------------------------------------- 1 | function enumerate_interval(low, high) { 2 | return low > high 3 | ? null 4 | : pair(low, 5 | enumerate_interval(low + 1, high)); 6 | } 7 | 8 | enumerate_interval(2, 7); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/11.js: -------------------------------------------------------------------------------- 1 | function enumerate_tree(tree) { 2 | return is_null(tree) 3 | ? null 4 | : ! is_pair(tree) 5 | ? list(tree) 6 | : append(enumerate_tree(head(tree)), 7 | enumerate_tree(tail(tree))); 8 | } 9 | 10 | enumerate_tree(list(1, list(2, list(3, 4)), 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/15.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function is_odd(n) { 5 | return n % 2 === 1; 6 | } 7 | function times(x, y) { 8 | return x * y; 9 | } 10 | function product_of_squares_of_odd_elements(sequence) { 11 | return accumulate(times, 12 | 1, 13 | map(square, 14 | filter(is_odd, sequence))); 15 | } 16 | 17 | product_of_squares_of_odd_elements(list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/17.js: -------------------------------------------------------------------------------- 1 | function map(f, sequence) { 2 | return accumulate((x, y) => ?? , 3 | null, sequence); 4 | } 5 | 6 | function append(seq1, seq2) { 7 | return accumulate(pair, ??, ??); 8 | } 9 | 10 | function length(sequence) { 11 | return accumulate(??, 0, sequence); 12 | } 13 | 14 | map_(math_sqrt, list(1, 2, 3, 4)); 15 | // append_(list(1, 2, 3), list(4, 5, 6)); 16 | // length_(list(1, 2, 3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/18.js: -------------------------------------------------------------------------------- 1 | function horner_eval(x, coefficient_sequence) { 2 | return accumulate((this_coeff, higher_terms) => ??, 3 | 0, 4 | coefficient_sequence); 5 | } 6 | 7 | horner_eval(2, list(1, 3, 0, 5, 0, 1)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/19.js: -------------------------------------------------------------------------------- 1 | function horner_eval(x, coefficient_sequence) { 2 | return accumulate((this_coeff, higher_terms) => ??, 3 | 0, 4 | coefficient_sequence); 5 | } 6 | horner_eval(2, list(1, 3, 0, 5, 0, 1)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/20.js: -------------------------------------------------------------------------------- 1 | function count_leaves(t) { 2 | return accumulate(??, ??, map(??, ??)); 3 | } 4 | 5 | count_leaves(pair(list(1, 2), list(3, 4))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/21.js: -------------------------------------------------------------------------------- 1 | list(list( 1, 2, 3), 2 | list( 4, 5, 6), 3 | list( 7, 8, 9), 4 | list(10, 11, 12)) -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/22.js: -------------------------------------------------------------------------------- 1 | function accumulate_n(op, init, seqs) { 2 | return is_null(head(seqs)) 3 | ? null 4 | : pair(accumulate(op, init, ??), 5 | accumulate_n(op, init, ??)); 6 | } 7 | 8 | const seq_seq = list(list(1, 2, 3), list(4, 5, 6), 9 | list(7, 8, 9), list(10, 11, 12)); 10 | accumulate_n(add, 0, seq_seq); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/23.js: -------------------------------------------------------------------------------- 1 | function plus(x, y) { 2 | return x + y; 3 | } 4 | function times(x, y) { 5 | return x * y; 6 | } 7 | function accumulate_n(op, init, seqs) { 8 | return is_null(head(seqs)) 9 | ? null 10 | : pair(accumulate(op, init, map(x => head(x), seqs)), 11 | accumulate_n(op, init, map(x => tail(x), seqs))); 12 | } 13 | function dot_product(v, w) { 14 | return accumulate(plus, 0, 15 | accumulate_n(times, 1, list(v, w))); 16 | } 17 | 18 | dot_product(list(1, 2), list(3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/24.js: -------------------------------------------------------------------------------- 1 | function matrix_times_vector(m, v) { 2 | return map(??, m); 3 | } 4 | 5 | function transpose(mat) { 6 | return accumulate_n(??, ??, mat); 7 | } 8 | 9 | function matrix_times_matrix(n, m) { 10 | const cols = transpose(n); 11 | return map(??, m); 12 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/25.js: -------------------------------------------------------------------------------- 1 | function fold_left(op, initial, sequence) { 2 | function iter(result, rest) { 3 | return is_null(rest) 4 | ? result 5 | : iter(op(result, head(rest)), 6 | tail(rest)); 7 | } 8 | return iter(initial, sequence); 9 | } 10 | 11 | fold_left(list, null, list(1, 2, 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/26.js: -------------------------------------------------------------------------------- 1 | // same as accumulate 2 | const fold_right = accumulate; 3 | function divide(x, y) { 4 | return x / y; 5 | } 6 | fold_right(divide, 1, list(1, 2, 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/27.js: -------------------------------------------------------------------------------- 1 | function fold_left(op, initial, sequence) { 2 | function iter(result, rest) { 3 | return is_null(rest) 4 | ? result 5 | : iter(op(result, head(rest)), 6 | tail(rest)); 7 | } 8 | return iter(initial, sequence); 9 | } 10 | function divide(x, y) { 11 | return x / y; 12 | } 13 | fold_left(divide, 1, list(1, 2, 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/28.js: -------------------------------------------------------------------------------- 1 | // same as accumulate 2 | const fold_right = accumulate; 3 | fold_right(list, null, list(1, 2, 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/29.js: -------------------------------------------------------------------------------- 1 | function fold_left(op, initial, sequence) { 2 | function iter(result, rest) { 3 | return is_null(rest) 4 | ? result 5 | : iter(op(result, head(rest)), 6 | tail(rest)); 7 | } 8 | return iter(initial, sequence); 9 | } 10 | fold_left(list, null, list(1, 2, 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/3.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function map(fun, items) { 5 | return is_null(items) 6 | ? null 7 | : pair(fun(head(items)), 8 | map(fun, tail(items))); 9 | } 10 | map(square, list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/30.js: -------------------------------------------------------------------------------- 1 | function reverse(sequence) { 2 | return fold_right((x, y) => ??, null, sequence); 3 | } 4 | 5 | reverse(list(1, 4, 9, 16, 25)); 6 | // result: [25, [16, [9, [4, [1, null]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/31.js: -------------------------------------------------------------------------------- 1 | function reverse(sequence) { 2 | return fold_left((x, y) => ??, null, sequence); 3 | } 4 | 5 | reverse(list(1, 4, 9, 16, 25)); 6 | // result: [25, [16, [9, [4, [1, null]]]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/32.js: -------------------------------------------------------------------------------- 1 | function enumerate_interval(low, high) { 2 | return low > high 3 | ? null 4 | : pair(low, 5 | enumerate_interval(low + 1, high)); 6 | } 7 | const n = 6; 8 | accumulate(append, 9 | null, 10 | map(i => map(j => list(i, j), 11 | enumerate_interval(1, i-1)), 12 | enumerate_interval(1, n))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/33.js: -------------------------------------------------------------------------------- 1 | function flatmap(f, seq) { 2 | return accumulate(append, null, map(f, seq)); 3 | } 4 | 5 | flatmap(x => list(x, x), list(1, 2, 3, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/35.js: -------------------------------------------------------------------------------- 1 | function make_pair_sum(pair) { 2 | return list(head(pair), head(tail(pair)), 3 | head(pair) + head(tail(pair))); 4 | } 5 | 6 | make_pair_sum(list(8, 9)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/37.js: -------------------------------------------------------------------------------- 1 | function flatmap(f, seq) { 2 | return accumulate(append, null, map(f, seq)); 3 | } 4 | function permutations(s) { 5 | return is_null(s) 6 | ? list(null) 7 | : flatmap(x => map(p => pair(x, p), 8 | permutations(remove(x, s))), 9 | s); 10 | } 11 | 12 | permutations(list(1, 2, 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/38.js: -------------------------------------------------------------------------------- 1 | function remove(item, sequence) { 2 | return filter(x => !(x === item), 3 | sequence); 4 | } 5 | 6 | remove(3, list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/4.js: -------------------------------------------------------------------------------- 1 | function filter(predicate, sequence) { 2 | return is_null(sequence) 3 | ? null 4 | : predicate(head(sequence)) 5 | ? pair(head(sequence), 6 | filter(predicate, tail(sequence))) 7 | : filter(predicate, tail(sequence)); 8 | } 9 | 10 | function is_odd(n) { 11 | return n % 2 === 1; 12 | } 13 | filter(is_odd, list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/5.js: -------------------------------------------------------------------------------- 1 | function filter(predicate, sequence) { 2 | return is_null(sequence) 3 | ? null 4 | : predicate(head(sequence)) 5 | ? pair(head(sequence), 6 | filter(predicate, tail(sequence))) 7 | : filter(predicate, tail(sequence)); 8 | } 9 | function is_odd(n) { 10 | return n % 2 === 1; 11 | } 12 | filter(is_odd, list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/6.js: -------------------------------------------------------------------------------- 1 | function accumulate(op, initial, sequence) { 2 | return is_null(sequence) 3 | ? initial 4 | : op(head(sequence), 5 | accumulate(op, initial, tail(sequence))); 6 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/7.js: -------------------------------------------------------------------------------- 1 | function accumulate(op, initial, sequence) { 2 | return is_null(sequence) 3 | ? initial 4 | : op(head(sequence), 5 | accumulate(op, initial, tail(sequence))); 6 | } 7 | function plus(x, y) { 8 | return x + y; 9 | } 10 | accumulate(plus, 0, list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/8.js: -------------------------------------------------------------------------------- 1 | function accumulate(op, initial, sequence) { 2 | return is_null(sequence) 3 | ? initial 4 | : op(head(sequence), 5 | accumulate(op, initial, tail(sequence))); 6 | } 7 | function times(x, y) { 8 | return x * y; 9 | } 10 | accumulate(times, 1, list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection3/9.js: -------------------------------------------------------------------------------- 1 | function accumulate(op, initial, sequence) { 2 | return is_null(sequence) 3 | ? initial 4 | : op(head(sequence), 5 | accumulate(op, initial, tail(sequence))); 6 | } 7 | accumulate(pair, null, list(1, 2, 3, 4, 5)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/1.js: -------------------------------------------------------------------------------- 1 | show(heart); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/11.js: -------------------------------------------------------------------------------- 1 | function square_of_four(tl, tr, bl, br) { 2 | return painter => stack(beside(tl(painter), tr(painter)), 3 | beside(bl(painter), br(painter))); 4 | } 5 | 6 | show(square_of_four(turn_upside_down, identity, 7 | quarter_turn_right, quarter_turn_left) 8 | (heart) 9 | ); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/12.js: -------------------------------------------------------------------------------- 1 | function square_of_four(tl, tr, bl, br) { 2 | return painter => stack(beside(tl(painter), tr(painter)), 3 | beside(bl(painter), br(painter))); 4 | } 5 | function identity(x) { 6 | return x; 7 | } 8 | const flipped_pairs = 9 | square_of_four(turn_upside_down, flip_vert, 10 | flip_horiz, identity); 11 | 12 | show(flipped_pairs(heart)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/13.js: -------------------------------------------------------------------------------- 1 | function square_of_four(tl, tr, bl, br) { 2 | return painter => stack(beside(tl(painter), tr(painter)), 3 | beside(bl(painter), br(painter))); 4 | } 5 | function identity(x) { 6 | return x; 7 | } 8 | function flipped_pairs(painter) { 9 | const combine4 = square_of_four(turn_upside_down, flip_vert, 10 | flip_horiz, identity); 11 | return combine4(painter); 12 | } 13 | 14 | show(flipped_pairs(heart)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/15.js: -------------------------------------------------------------------------------- 1 | // function split to be written by student 2 | const right_split = split(beside, below); 3 | const up_split = split(below, beside); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/2.js: -------------------------------------------------------------------------------- 1 | const heart2 = beside(heart, flip_vert(heart)); // (a) 2 | 3 | show(heart2); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/3.js: -------------------------------------------------------------------------------- 1 | const heart2 = beside(heart, flip_vert(heart)); // (a) 2 | const heart4 = stack(heart2, heart2); // (b) 3 | 4 | show(heart4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/4.js: -------------------------------------------------------------------------------- 1 | function flipped_pairs(painter) { 2 | const painter2 = beside(painter, flip_vert(painter)); 3 | return stack(painter2, painter2); 4 | } 5 | 6 | const heart4 = flipped_pairs(heart); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/5.js: -------------------------------------------------------------------------------- 1 | function flipped_pairs(painter) { 2 | const painter2 = beside(painter, flip_vert(painter)); 3 | return stack(painter2, painter2); 4 | } 5 | const heart4 = flipped_pairs(heart); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/6.js: -------------------------------------------------------------------------------- 1 | function right_split(painter, n) { 2 | if (n === 0) { 3 | return painter; 4 | } else { 5 | const smaller = right_split(painter, n - 1); 6 | return beside(painter, stack(smaller, smaller)); 7 | } 8 | } 9 | 10 | show(right_split(heart, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section2/subsection4/8.js: -------------------------------------------------------------------------------- 1 | function right_split(painter, n) { 2 | if (n === 0) { 3 | return painter; 4 | } else { 5 | const smaller = right_split(painter, n - 1); 6 | return beside(painter, stack(smaller, smaller)); 7 | } 8 | } 9 | show(right_split(heart, 4)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/1.js: -------------------------------------------------------------------------------- 1 | const a = 1; 2 | const b = 2; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/10.js: -------------------------------------------------------------------------------- 1 | tail(list(list("x1", "x2"), list("y1", "y2"))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/11.js: -------------------------------------------------------------------------------- 1 | tail(head(list(list("x1", "x2"), list("y1", "y2")))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/12.js: -------------------------------------------------------------------------------- 1 | function member(item, x) { 2 | return is_null(x) 3 | ? false 4 | : item === head(x) 5 | ? x 6 | : member(item, tail(x)); 7 | } 8 | member("red", list(list("red", "shoes"), list("blue", "socks"))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/13.js: -------------------------------------------------------------------------------- 1 | function member(item, x) { 2 | return is_null(x) 3 | ? false 4 | : item === head(x) 5 | ? x 6 | : member(item, tail(x)); 7 | } 8 | member("red", list("red", "shoes", "blue", "socks")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/14.js: -------------------------------------------------------------------------------- 1 | // function is_equal to be written by student 2 | is_equal(list("this", "is", "a", "list"), 3 | list("this", "is", "a", "list")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/15.js: -------------------------------------------------------------------------------- 1 | // function is_equal to be written by student 2 | is_equal(list("this", "is", "a", "list"), 3 | list("this", list("is", "a"), "list")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/16.js: -------------------------------------------------------------------------------- 1 | " '' === '' " -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/2.js: -------------------------------------------------------------------------------- 1 | const a = 1; 2 | const b = 2; 3 | list(a, b); 4 | // [1, [2, null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/3.js: -------------------------------------------------------------------------------- 1 | list("a", "b"); 2 | // ["a", ["b", null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/4.js: -------------------------------------------------------------------------------- 1 | const a = 1; 2 | const b = 2; 3 | list("a", b); 4 | // ["a", [2, null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/5.js: -------------------------------------------------------------------------------- 1 | function member(item, x) { 2 | return is_null(x) 3 | ? false 4 | : item === head(x) 5 | ? x 6 | : member(item, tail(x)); 7 | } 8 | 9 | member("apple", list("pear", "banana", "prune")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/6.js: -------------------------------------------------------------------------------- 1 | function member(item, x) { 2 | return is_null(x) 3 | ? false 4 | : item === head(x) 5 | ? x 6 | : member(item, tail(x)); 7 | } 8 | member("apple", list("pear", "banana", "prune")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/7.js: -------------------------------------------------------------------------------- 1 | function member(item, x) { 2 | return is_null(x) 3 | ? false 4 | : item === head(x) 5 | ? x 6 | : member(item, tail(x)); 7 | } 8 | member("apple", 9 | list("x", list("apple","sauce"), "y", "apple", "pear")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/8.js: -------------------------------------------------------------------------------- 1 | list("a", "b", "c"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection1/9.js: -------------------------------------------------------------------------------- 1 | list(list("george")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/10.js: -------------------------------------------------------------------------------- 1 | function multiplier(s) { 2 | return head(tail(s)); 3 | } 4 | 5 | multiplier(make_product("x", 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/11.js: -------------------------------------------------------------------------------- 1 | function multiplicand(s) { 2 | return head(tail(tail(s))); 3 | } 4 | 5 | multiplicand(make_product("x", 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/15.js: -------------------------------------------------------------------------------- 1 | function number_equal(exp, num) { 2 | return is_number(exp) && exp === num; 3 | } 4 | function make_sum(a1, a2) { 5 | return number_equal(a1, 0) 6 | ? a2 7 | : number_equal(a2, 0) 8 | ? a1 9 | : is_number(a1) && is_number(a2) 10 | ? a1 + a2 11 | : list("+", a1, a2); 12 | } 13 | 14 | make_sum(2, 3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/16.js: -------------------------------------------------------------------------------- 1 | function number_equal(exp, num) { 2 | return is_number(exp) && exp === num; 3 | } 4 | 5 | number_equal(3, 3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/17.js: -------------------------------------------------------------------------------- 1 | function number_equal(exp, num) { 2 | return is_number(exp) && exp === num; 3 | } 4 | function make_product(m1, m2) { 5 | return number_equal(m1, 0) || number_equal(m2, 0) 6 | ? 0 7 | : number_equal(m1, 1) 8 | ? m2 9 | : number_equal(m2, 1) 10 | ? m1 11 | : is_number(m1) && is_number(m2) 12 | ? m1 * m2 13 | : list("*", m1, m2); 14 | } 15 | 16 | make_product(2, 3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/2.js: -------------------------------------------------------------------------------- 1 | function is_variable(x) { 2 | return is_string(x); 3 | } 4 | 5 | is_variable("xyz"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/3.js: -------------------------------------------------------------------------------- 1 | function is_variable(x) { 2 | return is_string(x); 3 | } 4 | function is_same_variable(v1, v2) { 5 | return is_variable(v1) && 6 | is_variable(v2) && v1 === v2; 7 | } 8 | 9 | is_same_variable("xyz", "xyz"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/4.js: -------------------------------------------------------------------------------- 1 | function make_sum(a1, a2) { 2 | return list("+", a1, a2); 3 | } 4 | 5 | make_sum(make_product("x", 3), make_product("y", "z")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/5.js: -------------------------------------------------------------------------------- 1 | function make_sum(a1, a2) { 2 | return list("+", a1, a2); 3 | } 4 | function make_product(m1, m2) { 5 | return list("*", m1, m2); 6 | } 7 | 8 | make_sum(make_product("x", 3), make_product("y", "z")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/6.js: -------------------------------------------------------------------------------- 1 | function is_sum(x) { 2 | return is_pair(x) && head(x) === "+"; 3 | } 4 | 5 | is_sum(make_sum("x", 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/7.js: -------------------------------------------------------------------------------- 1 | function addend(s) { 2 | return head(tail(s)); 3 | } 4 | 5 | addend(make_sum("x", 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/8.js: -------------------------------------------------------------------------------- 1 | function augend(s) { 2 | return head(tail(tail(s))); 3 | } 4 | 5 | augend(make_sum("x", 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection2/9.js: -------------------------------------------------------------------------------- 1 | function is_product(x) { 2 | return is_pair(x) && head(x) === "*"; 3 | } 4 | 5 | is_product(make_product("x", 3)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection3/1.js: -------------------------------------------------------------------------------- 1 | function is_equal(a, b) { 2 | return (is_pair(a) && is_pair(b) && 3 | is_equal(head(a), head(b)) && is_equal(tail(a), tail(b))) 4 | || 5 | a === b; 6 | } 7 | function is_element_of_set(x, set) { 8 | return ! is_null(set) && 9 | ( is_equal(x, head(set)) || 10 | is_element_of_set(x, tail(set)) ); 11 | } 12 | 13 | is_element_of_set(15, 14 | adjoin_set(10, adjoin_set(15, adjoin_set(20, null)))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection3/2.js: -------------------------------------------------------------------------------- 1 | function is_element_of_set(x, set) { 2 | return ! is_null(set) && 3 | ( is_equal(x, head(set)) || 4 | is_element_of_set(x, tail(set)) ); 5 | } 6 | function is_equal(a, b) { 7 | return (is_pair(a) && is_pair(b) && 8 | is_equal(head(a), head(b)) && is_equal(tail(a), tail(b))) 9 | || 10 | a === b; 11 | } 12 | function adjoin_set(x, set) { 13 | return is_element_of_set(x, set) 14 | ? set 15 | : pair(x, set); 16 | } 17 | 18 | adjoin_set(10, adjoin_set(15, adjoin_set(20, null))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection3/4.js: -------------------------------------------------------------------------------- 1 | function is_element_of_set(x,set) { 2 | return ! is_null(set) && 3 | ( x === head(set)) 4 | ? true 5 | : x < head(set) 6 | ? false 7 | : is_element_of_set(x, tail(set)); 8 | } 9 | 10 | is_element_of_set(15, list(10, 15, 20)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection3/6.js: -------------------------------------------------------------------------------- 1 | function entry(tree) { 2 | return head(tree); 3 | } 4 | function left_branch(tree) { 5 | return head(tail(tree)); 6 | } 7 | function right_branch(tree) { 8 | return head(tail(tail(tree))); 9 | } 10 | function make_tree(entry,left,right) { 11 | return list(entry,left,right); 12 | } 13 | 14 | entry( 15 | left_branch( 16 | right_branch( 17 | make_tree(10, 18 | null, 19 | make_tree(30, 20 | make_tree(20,null,null), 21 | null))))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection3/9.js: -------------------------------------------------------------------------------- 1 | function entry(tree) { 2 | return head(tree); 3 | } 4 | function left_branch(tree) { 5 | return head(tail(tree)); 6 | } 7 | function right_branch(tree) { 8 | return head(tail(tail(tree))); 9 | } 10 | function make_tree(entry,left,right) { 11 | return list(entry,left,right); 12 | } 13 | function tree_to_list_1(tree) { 14 | return is_null(tree) 15 | ? null 16 | : append(tree_to_list_1(left_branch(tree)), 17 | pair(entry(tree), 18 | tree_to_list_1(right_branch(tree)))); 19 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection4/1.js: -------------------------------------------------------------------------------- 1 | function make_leaf(symbol, weight) { 2 | return list("leaf", symbol, weight); 3 | } 4 | function is_leaf(object) { 5 | return head(object) === "leaf"; 6 | } 7 | function symbol_leaf(x) { 8 | return head(tail(x)); 9 | } 10 | function weight_leaf(x) { 11 | return head(tail(tail(x))); 12 | } 13 | 14 | const my_leaf = make_leaf("A", 8); 15 | 16 | weight_leaf(my_leaf); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section3/subsection4/8.js: -------------------------------------------------------------------------------- 1 | // encode_symbol function to be written by students 2 | function encode(message, tree) { 3 | return is_null(message) 4 | ? null 5 | : append(encode_symbol(head(message), tree), 6 | encode(tail(message), tree)); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section4/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function attach_tag(type_tag, contents) { 2 | return pair(type_tag, contents); 3 | } 4 | function type_tag(datum) { 5 | return is_pair(datum) 6 | ? head(datum) 7 | : Error("bad tagged datum in type_tag", datum); 8 | } 9 | function contents(datum) { 10 | return is_pair(datum) 11 | ? tail(datum) 12 | : Error("bad tagged datum in contents", datum); 13 | } 14 | 15 | const f_1 = list("A", 4); 16 | const my_frequency_1 = 17 | attach_tag("frequency_list", f_1); 18 | 19 | type_tag(my_frequency_1); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter2/section4/subsection3/7.js: -------------------------------------------------------------------------------- 1 | deriv(list("*", list("*", "x", "y"), list("+", "x", 4)), "x"); 2 | // [ "+", 3 | // [["*", [["*", ["x", ["y", null]]], 4 | // [["+", [1, [0, null]]], null]]], 5 | // [["*", 6 | // [["+", 7 | // [["*", ["x", [0, null]]], 8 | // [["*", [1, ["y", null]]], null]]], 9 | // [["+", ["x", [4, null]]], null] ] ], 10 | // null ]]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/1.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "Insufficient funds"; 9 | } 10 | } 11 | withdraw(25); // output: 75 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/10.js: -------------------------------------------------------------------------------- 1 | w1(50); // output: 50 2 | const w1 = make_withdraw_with_balance(100); 3 | const w2 = make_withdraw_with_balance(100); 4 | function make_withdraw_with_balance(balance) { 5 | return amount => { 6 | if (balance >= amount) { 7 | balance = balance - amount; 8 | return balance; 9 | } else { 10 | return "insufficient funds"; 11 | } 12 | }; 13 | } 14 | w2(70); // output: 30 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/11.js: -------------------------------------------------------------------------------- 1 | w2(70); // output: 30 2 | w1(50); // output: 50 3 | const w1 = make_withdraw_with_balance(100); 4 | const w2 = make_withdraw_with_balance(100); 5 | function make_withdraw_with_balance(balance) { 6 | return amount => { 7 | if (balance >= amount) { 8 | balance = balance - amount; 9 | return balance; 10 | } else { 11 | return "insufficient funds"; 12 | } 13 | }; 14 | } 15 | w2(40); // output: "Insufficient funds" -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/12.js: -------------------------------------------------------------------------------- 1 | w2(40); // output: "Insufficient funds" 2 | w2(70); // output: 30 3 | w1(50); // output: 50 4 | const w1 = make_withdraw_with_balance(100); 5 | const w2 = make_withdraw_with_balance(100); 6 | function make_withdraw_with_balance(balance) { 7 | return amount => { 8 | if (balance >= amount) { 9 | balance = balance - amount; 10 | return balance; 11 | } else { 12 | return "insufficient funds"; 13 | } 14 | }; 15 | } 16 | w1(40); // output: 10 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/2.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "Insufficient funds"; 9 | } 10 | } 11 | withdraw(25); // output: 75 12 | withdraw(25); // output: 50 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/20.js: -------------------------------------------------------------------------------- 1 | // make_accumulator to be written by students 2 | const a = make_accumulator(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/21.js: -------------------------------------------------------------------------------- 1 | // make_accumulator to be written by students 2 | const a = make_accumulator(5); 3 | a(10); // output: 15 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/22.js: -------------------------------------------------------------------------------- 1 | a(10); // output: 15 2 | // make_accumulator to be written by students 3 | const a = make_accumulator(5); 4 | a(10); // output: 25 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/23.js: -------------------------------------------------------------------------------- 1 | // make_monitored function to be written by students 2 | const s = make_monitored(math_sqrt); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/24.js: -------------------------------------------------------------------------------- 1 | // make_monitored function to be written by students 2 | const s = make_monitored(math_sqrt); 3 | s(100); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/25.js: -------------------------------------------------------------------------------- 1 | s(100); 2 | // make_monitored function to be written by students 3 | const s = make_monitored(math_sqrt); 4 | s("how many calls?"); // returns 1 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/26.js: -------------------------------------------------------------------------------- 1 | // make_account function to be written by students 2 | const acc = make_account(100, "secret password"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/27.js: -------------------------------------------------------------------------------- 1 | // make_account function to be written by students 2 | const acc = make_account(100, "secret password"); 3 | (acc("secret password", "withdraw"))(40); // result: 60 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/28.js: -------------------------------------------------------------------------------- 1 | (acc("secret password", "withdraw"))(40); // result: 60 2 | (acc("some other password", "deposit"))(40); 3 | // result: incorrect password -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/3.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "Insufficient funds"; 9 | } 10 | } 11 | withdraw(25); // output: 75 12 | withdraw(25); // output: 50 13 | withdraw(60); // output: "Insufficient funds" -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/4.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "Insufficient funds"; 9 | } 10 | } 11 | withdraw(25); // output: 75 12 | withdraw(25); // output: 50 13 | withdraw(60); // output: "Insufficient funds" 14 | withdraw(15); // output: 35 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/5.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "Insufficient funds"; 9 | } 10 | } 11 | 12 | withdraw(25); // output: 75 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/6.js: -------------------------------------------------------------------------------- 1 | function make_withdraw() { 2 | let balance = 100; 3 | return amount => { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "insufficient funds"; 9 | } 10 | }; 11 | } 12 | const new_withdraw = make_withdraw(); 13 | 14 | new_withdraw(60); 15 | new_withdraw(60); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/7.js: -------------------------------------------------------------------------------- 1 | function make_withdraw_with_balance(balance) { 2 | return amount => { 3 | if (balance >= amount) { 4 | balance = balance - amount; 5 | return balance; 6 | } else { 7 | return "insufficient funds"; 8 | } 9 | }; 10 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/8.js: -------------------------------------------------------------------------------- 1 | function make_withdraw_with_balance(balance) { 2 | return amount => { 3 | if (balance >= amount) { 4 | balance = balance - amount; 5 | return balance; 6 | } else { 7 | return "insufficient funds"; 8 | } 9 | }; 10 | } 11 | const w1 = make_withdraw_with_balance(100); 12 | const w2 = make_withdraw_with_balance(100); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection1/9.js: -------------------------------------------------------------------------------- 1 | const w1 = make_withdraw_with_balance(100); 2 | const w2 = make_withdraw_with_balance(100); 3 | function make_withdraw_with_balance(balance) { 4 | return amount => { 5 | if (balance >= amount) { 6 | balance = balance - amount; 7 | return balance; 8 | } else { 9 | return "insufficient funds"; 10 | } 11 | }; 12 | } 13 | w1(50); // output: 50 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/1.js: -------------------------------------------------------------------------------- 1 | function make_simplified_withdraw(balance) { 2 | return amount => { 3 | balance = balance - amount; 4 | return balance; 5 | }; 6 | } 7 | 8 | const w = make_simplified_withdraw(25); 9 | 10 | w(20); // output: 5 11 | 12 | w(10); // output: -5 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/10.js: -------------------------------------------------------------------------------- 1 | function make_decrementer(balance) { 2 | return amount => balance - amount; 3 | } 4 | const d1 = make_decrementer(25); 5 | 6 | const d2 = make_decrementer(25); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/11.js: -------------------------------------------------------------------------------- 1 | function make_simplified_withdraw(balance) { 2 | return amount => { 3 | balance = balance - amount; 4 | return balance; 5 | }; 6 | } 7 | const w1 = make_simplified_withdraw(25); 8 | 9 | const w2 = make_simplified_withdraw(25); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/12.js: -------------------------------------------------------------------------------- 1 | const w1 = make_simplified_withdraw(25); 2 | 3 | const w2 = make_simplified_withdraw(25); 4 | function make_simplified_withdraw(balance) { 5 | return amount => { 6 | balance = balance - amount; 7 | return balance; 8 | }; 9 | } 10 | w1(20); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/13.js: -------------------------------------------------------------------------------- 1 | w1(20); 2 | const w1 = make_simplified_withdraw(25); 3 | 4 | const w2 = make_simplified_withdraw(25); 5 | function make_simplified_withdraw(balance) { 6 | return amount => { 7 | balance = balance - amount; 8 | return balance; 9 | }; 10 | } 11 | w1(20); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/14.js: -------------------------------------------------------------------------------- 1 | w1(20); 2 | w1(20); 3 | const w1 = make_simplified_withdraw(25); 4 | 5 | const w2 = make_simplified_withdraw(25); 6 | function make_simplified_withdraw(balance) { 7 | return amount => { 8 | balance = balance - amount; 9 | return balance; 10 | }; 11 | } 12 | w2(20); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/17.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | function iter(product,counter) { 3 | if (counter > n) { 4 | return product; 5 | } else { 6 | return iter(counter*product, 7 | counter+1); 8 | } 9 | } 10 | return iter(1,1); 11 | } 12 | 13 | factorial(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/18.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | let product = 1; 3 | let counter = 1; 4 | function iter() { 5 | if (counter > n) { 6 | return product; 7 | } else { 8 | product = counter * product; 9 | counter = counter + 1; 10 | return iter(); 11 | } 12 | } 13 | return iter(); 14 | } 15 | 16 | factorial(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/19.js: -------------------------------------------------------------------------------- 1 | // make_joint function to be written by students 2 | const paul_acc = 3 | make_joint(peter_acc, "open sesame", "rosebud"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/2.js: -------------------------------------------------------------------------------- 1 | function make_decrementer(balance) { 2 | return amount => balance - amount; 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/3.js: -------------------------------------------------------------------------------- 1 | function make_decrementer(balance) { 2 | return amount => balance - amount; 3 | } 4 | const d = make_decrementer(25); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/4.js: -------------------------------------------------------------------------------- 1 | const d = make_decrementer(25); 2 | function make_decrementer(balance) { 3 | return amount => balance - amount; 4 | } 5 | d(20); // output: 5 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/5.js: -------------------------------------------------------------------------------- 1 | d(20); // output: 5 2 | const d = make_decrementer(25); 3 | function make_decrementer(balance) { 4 | return amount => balance - amount; 5 | } 6 | d(10); // output: 15 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/6.js: -------------------------------------------------------------------------------- 1 | function make_decrementer(balance) { 2 | return amount => balance - amount; 3 | } 4 | (make_decrementer(25))(20); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/7.js: -------------------------------------------------------------------------------- 1 | (amount => 25 - amount)(20); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/8.js: -------------------------------------------------------------------------------- 1 | 25 - 20; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section1/subsection3/9.js: -------------------------------------------------------------------------------- 1 | function make_simplified_withdraw(balance) { 2 | return amount => { 3 | balance = balance - amount; 4 | return balance; 5 | }; 6 | } 7 | (make_simplified_withdraw(25))(20); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection1/1.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | 5 | square(14); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection1/2.js: -------------------------------------------------------------------------------- 1 | const square = x => x * x; 2 | 3 | square(14); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | 5 | function sum_of_squares(x, y) { 6 | return square(x) + square(y); 7 | } 8 | 9 | function f(a) { 10 | return sum_of_squares(a + 1, a * 2); 11 | } 12 | 13 | f(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection2/2.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | return n === 1 3 | ? 1 4 | : n * factorial(n - 1); 5 | } 6 | 7 | factorial(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection2/3.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | return fact_iter(1, 1, n); 3 | } 4 | function fact_iter(product, counter, max_count) { 5 | return counter > max_count 6 | ? product 7 | : fact_iter(counter * product, 8 | counter + 1, 9 | max_count); 10 | } 11 | 12 | factorial(5); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection3/1.js: -------------------------------------------------------------------------------- 1 | function make_withdraw_with_balance(balance) { 2 | return amount => { 3 | if (balance >= amount) { 4 | balance = balance - amount; 5 | return balance; 6 | } else { 7 | return "insufficient funds"; 8 | } 9 | }; 10 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection3/2.js: -------------------------------------------------------------------------------- 1 | function make_withdraw_with_balance(balance) { 2 | return amount => { 3 | if (balance >= amount) { 4 | balance = balance - amount; 5 | return balance; 6 | } else { 7 | return "insufficient funds"; 8 | } 9 | }; 10 | } 11 | const w1 = make_withdraw_with_balance(100); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection3/3.js: -------------------------------------------------------------------------------- 1 | const w1 = make_withdraw_with_balance(100); 2 | function make_withdraw_with_balance(balance) { 3 | return amount => { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "insufficient funds"; 9 | } 10 | }; 11 | } 12 | w1(50); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection3/4.js: -------------------------------------------------------------------------------- 1 | make_withdraw_with_balance -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection3/5.js: -------------------------------------------------------------------------------- 1 | function make_withdraw_with_balance(balance) { 2 | return amount => { 3 | if (balance >= amount) { 4 | balance = balance - amount; 5 | return balance; 6 | } else { 7 | return "insufficient funds"; 8 | } 9 | }; 10 | } 11 | const w2 = make_withdraw(100); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection3/6.js: -------------------------------------------------------------------------------- 1 | function make_withdraw(initial_amount) { 2 | let balance = initial_amount; 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "insufficient funds"; 9 | } 10 | } 11 | return withdraw; 12 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection3/7.js: -------------------------------------------------------------------------------- 1 | function make_withdraw(initial_amount) { 2 | let balance = initial_amount; 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "insufficient funds"; 9 | } 10 | } 11 | return withdraw; 12 | } 13 | const w1 = make_withdraw(100); 14 | w1(50); 15 | const w2 = make_withdraw(100); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section2/subsection4/2.js: -------------------------------------------------------------------------------- 1 | function abs(x) { 2 | return x >= 0 ? x : -x; 3 | } 4 | function square(x) { 5 | return x * x; 6 | } 7 | function good_enough(guess) { 8 | return abs(square(guess) - x) < 0.001; 9 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/1.js: -------------------------------------------------------------------------------- 1 | const x = list(list("a", "b"), "c"); 2 | const y = list("e", "f"); 3 | const z = pair(y, tail(x)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/10.js: -------------------------------------------------------------------------------- 1 | const v = list("a", "b", "c"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/11.js: -------------------------------------------------------------------------------- 1 | function mystery(x) { 2 | function loop(x, y) { 3 | if (is_null(x)) { 4 | return y; 5 | } else { 6 | let temp = tail(x); 7 | set_tail(x, y); 8 | return loop(temp, x); 9 | } 10 | } 11 | return loop(x, null); 12 | } 13 | const v = list("a", "b", "c"); 14 | const w = mystery(v); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/12.js: -------------------------------------------------------------------------------- 1 | const x = list("a", "b"); 2 | const z1 = pair(x, x); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/13.js: -------------------------------------------------------------------------------- 1 | const z2 = pair(list("a", "b"), list("a", "b")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/14.js: -------------------------------------------------------------------------------- 1 | list(list("a", "b"), "a", "b") -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/15.js: -------------------------------------------------------------------------------- 1 | function set_to_wow(x) { 2 | set_head(head(x), "wow"); 3 | return x; 4 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/16.js: -------------------------------------------------------------------------------- 1 | const x = list("a", "b"); 2 | const z1 = pair(x, x); 3 | z1; 4 | // displays: [["a", ["b", null], ["a", ["b", null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/17.js: -------------------------------------------------------------------------------- 1 | function set_to_wow(x) { 2 | set_head(head(x), "wow"); 3 | return x; 4 | } 5 | const x = list("a", "b"); 6 | const z1 = pair(x, x); 7 | set_to_wow(z1); 8 | // displays: [["wow", ["b", null], ["wow", ["b", null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/18.js: -------------------------------------------------------------------------------- 1 | const z2 = pair(list("a", "b"), list("a", "b")); 2 | z2; 3 | // displays: [["a", ["b", null], ["a", ["b", null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/19.js: -------------------------------------------------------------------------------- 1 | function set_to_wow(x) { 2 | set_head(head(x), "wow"); 3 | return x; 4 | } 5 | const z2 = pair(list("a", "b"), list("a", "b")); 6 | set_to_wow(z2); 7 | // displays: [["wow", ["b", null], ["a", ["b", null]] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/2.js: -------------------------------------------------------------------------------- 1 | // The textbook proposes a primitive function get_new_pair. 2 | // Since JavaScript does not provide such a function, let's 3 | // define it as follows, for the sake of the example. 4 | 5 | function get_new_pair() { 6 | return pair(undefined, undefined); 7 | } 8 | function pair(x, y) { 9 | const fresh = get_new_pair(); 10 | set_head(fresh, x); 11 | set_tail(fresh, y); 12 | return fresh; 13 | } 14 | 15 | pair(pair(1, 2), 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/20.js: -------------------------------------------------------------------------------- 1 | function count_pairs(x) { 2 | return !is_pair(x) 3 | ? 0 4 | : count_pairs(head(x)) + 5 | count_pairs(tail(x)) + 1; 6 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/21.js: -------------------------------------------------------------------------------- 1 | function pair(x, y) { 2 | function dispatch(m) { 3 | if (m === "head") { 4 | return x; 5 | } else if (m === "tail") { 6 | return y; 7 | } else { 8 | return "undefined operation -- pair"; 9 | } 10 | } 11 | return dispatch; 12 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/3.js: -------------------------------------------------------------------------------- 1 | function append(x, y) { 2 | return is_null(x) 3 | ? y 4 | : pair(head(x), append(tail(x), y)); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/4.js: -------------------------------------------------------------------------------- 1 | function last_pair(x) { 2 | return is_null(tail(x))) 3 | ? x 4 | : last_pair(tail(x)); 5 | } 6 | function append_mutator(x, y) { 7 | set_tail(last_pair(x), y); 8 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/5.js: -------------------------------------------------------------------------------- 1 | function last_pair(x) { 2 | return is_null(tail(x))) 3 | ? x 4 | : last_pair(tail(x)); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/6.js: -------------------------------------------------------------------------------- 1 | function append(x, y) { 2 | return is_null(x) 3 | ? y 4 | : pair(head(x), append(tail(x), y)); 5 | } 6 | function append_mutator(x, y) { 7 | set_tail(last_pair(x), y); 8 | } 9 | const x = list("a", "b"); 10 | const y = list("c", "d"); 11 | const z = append(x, y); 12 | display(z); // ["a", ["b", ["c", ["d", null]]]] 13 | display(tail(x)); // ??? 14 | const w = append_mutator(x, y); 15 | display(w); // ["a", ["b", ["c", ["d", null]]]] 16 | display(tail(x)); // ??? -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/7.js: -------------------------------------------------------------------------------- 1 | function last_pair(x) { 2 | return is_null(tail(x))) 3 | ? x 4 | : last_pair(tail(x)); 5 | } 6 | function make_cycle(x) { 7 | set_tail(last_pair(x), x); 8 | return x; 9 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/8.js: -------------------------------------------------------------------------------- 1 | function make_cycle(x) { 2 | set_tail(last_pair(x), x); 3 | return x; 4 | } 5 | const z = make_cycle(list("a", "b", "c")); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection1/9.js: -------------------------------------------------------------------------------- 1 | const v = list("a", "b", "c"); 2 | function mystery(x) { 3 | function loop(x, y) { 4 | if (is_null(x)) { 5 | return y; 6 | } else { 7 | let temp = tail(x); 8 | set_tail(x, y); 9 | return loop(temp, x); 10 | } 11 | } 12 | return loop(x, null); 13 | } 14 | 15 | const w = mystery(v); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function front_ptr(queue) { 2 | return head(queue); 3 | } 4 | function rear_ptr(queue) { 5 | return tail(queue); 6 | } 7 | function set_front_ptr(queue, item) { 8 | set_head(queue, item); 9 | } 10 | function set_rear_ptr(queue, item) { 11 | set_tail(queue, item); 12 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection2/2.js: -------------------------------------------------------------------------------- 1 | function front_ptr(queue) { 2 | return head(queue); 3 | } 4 | function rear_ptr(queue) { 5 | return tail(queue); 6 | } 7 | function set_front_ptr(queue, item) { 8 | set_head(queue, item); 9 | } 10 | function set_rear_ptr(queue, item) { 11 | set_tail(queue, item); 12 | } 13 | function is_empty_queue(queue) { 14 | return is_null(front_ptr(queue)); 15 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection2/3.js: -------------------------------------------------------------------------------- 1 | function make_queue() { 2 | return pair(null, null); 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection2/7.js: -------------------------------------------------------------------------------- 1 | function make_queue() { 2 | return pair(null, null); 3 | } 4 | const q1 = make_queue(); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection3/2.js: -------------------------------------------------------------------------------- 1 | function is_equal(a, b) { 2 | return (is_pair(a) && is_pair(b) && 3 | is_equal(head(a), head(b)) && is_equal(tail(a), tail(b))) 4 | || 5 | a === b; 6 | } 7 | function assoc(key, records) { 8 | return is_null(records) 9 | ? undefined 10 | : is_equal(key, head(head(records))) 11 | ? head(records) 12 | : assoc(key, tail(records)); 13 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection3/4.js: -------------------------------------------------------------------------------- 1 | function make_table() { 2 | return list("*table*"); 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section3/subsection3/9.js: -------------------------------------------------------------------------------- 1 | function fib(n) { 2 | return n === 0 3 | ? 0 4 | : n === 1 5 | ? 1 6 | : fib(n - 1) + fib(n - 2); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section4/section4/1.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "Insufficient funds"; 9 | } 10 | } 11 | withdraw(25); // output: 75 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section4/section4/2.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | 3 | function withdraw(amount) { 4 | if (balance >= amount) { 5 | balance = balance - amount; 6 | return balance; 7 | } else { 8 | return "Insufficient funds"; 9 | } 10 | } 11 | withdraw(25); // output: 75 12 | withdraw(25); // output: 50 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section4/subsection1/1.js: -------------------------------------------------------------------------------- 1 | let balance = 100; 2 | function withdraw(amount) { 3 | if (balance >= amount) { 4 | balance = balance - amount; 5 | return balance; 6 | } else { 7 | return "Insufficient funds"; 8 | } 9 | } 10 | 11 | withdraw(25); // output: 75 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection1/11.js: -------------------------------------------------------------------------------- 1 | function stream_enumerate_interval(low, high) { 2 | return low > high 3 | ? null 4 | : pair(low, 5 | () => stream_enumerate_interval(low + 1, 6 | high)); 7 | } 8 | pair(10001, () => stream_enumerate_interval(10002, 1000000)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection1/17.js: -------------------------------------------------------------------------------- 1 | function show(x) { 2 | display(x); 3 | return x; 4 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection1/18.js: -------------------------------------------------------------------------------- 1 | function stream_enumerate_interval(low, high) { 2 | return low > high 3 | ? null 4 | : pair(low, 5 | () => stream_enumerate_interval(low + 1, 6 | high)); 7 | } 8 | function show(x) { 9 | display(x); 10 | return x; 11 | } 12 | let x = stream_map(show, stream_enumerate_interval(0, 10)); 13 | stream_ref(x, 5); 14 | stream_ref(x, 7); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection1/3.js: -------------------------------------------------------------------------------- 1 | function is_prime(n) { 2 | return n === smallest_divisor(n); 3 | } 4 | function enumerate_interval(low, high) { 5 | return low > high 6 | ? null 7 | : pair(low, 8 | enumerate_interval(low + 1, high)); 9 | } 10 | head(tail(filter(is_prime, 11 | enumerate_interval(10000, 1000000)))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection1/4.js: -------------------------------------------------------------------------------- 1 | function stream_tail(stream) { 2 | return tail(stream)(); 3 | } 4 | 5 | stream_tail(pair(4, () => pair(5, () => null))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection1/9.js: -------------------------------------------------------------------------------- 1 | function stream_enumerate_interval(low, high) { 2 | return low > high 3 | ? null 4 | : pair(low, 5 | () => stream_enumerate_interval(low + 1, 6 | high)); 7 | } 8 | pair(10000, () => stream_enumerate_interval(10001, 1000000)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function integers_starting_from(n) { 2 | return pair(n, 3 | () => integers_starting_from(n + 1) 4 | ); 5 | } 6 | 7 | eval_stream(integers_starting_from(7), 30); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/11.js: -------------------------------------------------------------------------------- 1 | function scale_stream(stream, factor) { 2 | return stream_map(x => x * factor, 3 | stream); 4 | } 5 | const double = pair(1, () => scale_stream(double, 2)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/14.js: -------------------------------------------------------------------------------- 1 | function add_streams(s1, s2) { 2 | return stream_combine((x1, x2) => x1 + x2, s1, s2); 3 | } 4 | const s = pair(1, () => add_streams(s, s)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/15.js: -------------------------------------------------------------------------------- 1 | // mul_streams to be written by students 2 | const factorials = pair(1, () => mul_streams(???, ???)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/18.js: -------------------------------------------------------------------------------- 1 | function expand(num, den, radix) { 2 | return pair(quotient(num * radix, den), 3 | expand((num * radix) % den, den, radix)); 4 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/19.js: -------------------------------------------------------------------------------- 1 | const exp_series = 2 | pair(1, () => integrate_series(exp_series)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/4.js: -------------------------------------------------------------------------------- 1 | function fibgen(a, b) { 2 | return pair(a, () => fibgen(b, a + b)); 3 | } 4 | 5 | const fibs = fibgen(0, 1); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/6.js: -------------------------------------------------------------------------------- 1 | const ones = pair(1, () => ones); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection2/9.js: -------------------------------------------------------------------------------- 1 | function add_streams(s1, s2) { 2 | return stream_combine((x1, x2) => x1 + x2, s1, s2); 3 | } 4 | const fibs = pair(0, 5 | () => pair(1, 6 | () => add_streams(stream_tail( 7 | fibs)) 8 | ) 9 | ); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection4/1.js: -------------------------------------------------------------------------------- 1 | function integral(integrand, intial_value, dt) { 2 | return pair(intial_value, 3 | is_null(integrand) ? null 4 | : integral(stream_tail(integrand), 5 | dt * head(integrand) + initial_value, 6 | dt)); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter3/section5/subsection5/1.js: -------------------------------------------------------------------------------- 1 | function stream_withdraw(balance, amount_stream) { 2 | return pair(balance, 3 | () => stream_withdraw( 4 | balance - head(amount_stream), 5 | stream_tail(amount_stream))); 6 | } 7 | 8 | const my_amounts = list_to_stream(list(50, 100, 40)); 9 | const my_account_stream = stream_withdraw(200, my_amounts); 10 | eval_stream(my_account_stream, 3); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection1/10.js: -------------------------------------------------------------------------------- 1 | function eval_return_statement(stmt, env) { 2 | return make_return_value( 3 | evaluate(return_statement_expression(stmt), 4 | env)); 5 | } 6 | 7 | const my_program = parse("{ function f() { return 1; } f(); }"); 8 | evaluate(my_program, the_global_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection1/11.js: -------------------------------------------------------------------------------- 1 | function eval_assignment(stmt, env) { 2 | const value = evaluate(assignment_value(stmt), env); 3 | assign_name_value(assignment_name(stmt), value, env); 4 | return value; 5 | } 6 | 7 | const my_program = parse("{ let x = 1; x = 2; }"); 8 | evaluate(my_program, the_global_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection1/12.js: -------------------------------------------------------------------------------- 1 | function eval_variable_declaration(stmt, env) { 2 | set_name_value(variable_declaration_name(stmt), 3 | evaluate(variable_declaration_value(stmt), env), 4 | env); 5 | } 6 | function eval_constant_declaration(stmt, env) { 7 | set_name_value(constant_declaration_name(stmt), 8 | evaluate(constant_declaration_value(stmt), env), 9 | env); 10 | } 11 | 12 | const my_program = parse("{ let x = 1; const y = 2; x + y; }"); 13 | evaluate(my_program, the_global_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection1/3.js: -------------------------------------------------------------------------------- 1 | function list_of_values(exps, env) { 2 | if (no_operands(exps)) { 3 | return null; 4 | } else { 5 | return pair(evaluate(first_operand(exps), env), 6 | list_of_values(rest_operands(exps), env)); 7 | } 8 | } 9 | 10 | const my_addition_expression = parse("1 + 2;"); 11 | list_of_values(list(1, my_addition_expression, 7), 12 | the_global_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection1/4.js: -------------------------------------------------------------------------------- 1 | function eval_conditional_expression(stmt, env) { 2 | return is_true(evaluate(cond_expr_pred(stmt), 3 | env)) 4 | ? evaluate(cond_expr_cons(stmt), 5 | env) 6 | : evaluate(cond_expr_alt(stmt), 7 | env); 8 | } 9 | 10 | const my_cond_expr = parse("if (true) { 1; } else { 2; }"); 11 | eval_conditional_expression(my_cond_expr, the_empty_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection1/5.js: -------------------------------------------------------------------------------- 1 | function eval_function_definition(stmt,env) { 2 | return make_compound_function( 3 | map(name_of_name, 4 | function_definition_parameters(stmt)), 5 | function_definition_body(stmt), 6 | env); 7 | } 8 | 9 | const my_fun = parse("x => x * x;"); 10 | eval_function_definition(my_fun, the_empty_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function is_self_evaluating(stmt) { 2 | return is_number(stmt) || 3 | is_string(stmt) || 4 | is_boolean(stmt); 5 | } 6 | 7 | const my_program = parse("true; 1;"); 8 | const my_true_statement = list_ref(my_program, 0); 9 | display(is_self_evaluating(my_true_statement)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection2/10.js: -------------------------------------------------------------------------------- 1 | function is_tagged_list(stmt, the_tag) { 2 | return is_pair(stmt) && head(stmt) === the_tag; 3 | } 4 | function is_block(stmt) { 5 | return is_tagged_list(stmt, "block"); 6 | } 7 | function make_block(stmt) { 8 | return list("block", stmt); 9 | } 10 | function block_body(stmt) { 11 | return head(tail(stmt)); 12 | } 13 | 14 | const my_block = parse("{ 1; true; 45; }"); 15 | display(is_block(my_block)); 16 | display(block_body(my_block)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection2/2.js: -------------------------------------------------------------------------------- 1 | function is_tagged_list(stmt, the_tag) { 2 | return is_pair(stmt) && head(stmt) === the_tag; 3 | } 4 | function is_name(stmt) { 5 | return is_tagged_list(stmt, "name"); 6 | } 7 | function name_of_name(stmt) { 8 | return head(tail(stmt)); 9 | } 10 | 11 | const my_name_statement = parse("x;"); 12 | display(is_name(my_name_statement)); 13 | display(name_of_name(my_name_statement)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection2/3.js: -------------------------------------------------------------------------------- 1 | function is_tagged_list(stmt, the_tag) { 2 | return is_pair(stmt) && head(stmt) === the_tag; 3 | } 4 | 5 | is_tagged_list(list("name", "x"), "name"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection2/4.js: -------------------------------------------------------------------------------- 1 | function is_tagged_list(stmt, the_tag) { 2 | return is_pair(stmt) && head(stmt) === the_tag; 3 | } 4 | function is_assignment(stmt) { 5 | return is_tagged_list(stmt, "assignment"); 6 | } 7 | function assignment_name(stmt) { 8 | return head(tail(head(tail(stmt)))); 9 | } 10 | function assignment_value(stmt) { 11 | return head(tail(tail(stmt))); 12 | } 13 | 14 | const my_assignment_statement = parse("x = 1;"); 15 | display(assignment_name(my_assignment_statement)); 16 | display(assignment_value(my_assignment_statement)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection3/1.js: -------------------------------------------------------------------------------- 1 | function is_true(x) { 2 | return x === true; 3 | } 4 | 5 | is_true(1); // should return false because only true is true -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection3/10.js: -------------------------------------------------------------------------------- 1 | function set_name_value(name, val, env) { 2 | function scan(names, vals) { 3 | return is_null(names) 4 | ? error("internal error: name not found") 5 | : name === head(names) 6 | ? set_head(head(vals), val) 7 | : scan(tail(names), tail(vals)); 8 | } 9 | const frame = first_frame(env); 10 | return scan(frame_names(frame), 11 | frame_values(frame)); 12 | } 13 | 14 | const my_block = parse("{ let x = 1; x; }"); 15 | evaluate(my_block, the_global_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection3/3.js: -------------------------------------------------------------------------------- 1 | function is_tagged_list(stmt, the_tag) { 2 | return is_pair(stmt) && head(stmt) === the_tag; 3 | } 4 | function make_return_value(content) { 5 | return list("return_value", content); 6 | } 7 | function is_return_value(value) { 8 | return is_tagged_list(value,"return_value"); 9 | } 10 | function return_value_content(value) { 11 | return head(tail(value)); 12 | } 13 | 14 | const my_return_value = make_return_value(42); 15 | display(is_return_value(my_return_value)); 16 | display(return_value_content(my_return_value)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection3/4.js: -------------------------------------------------------------------------------- 1 | function enclosing_environment(env) { 2 | return tail(env); 3 | } 4 | function first_frame(env) { 5 | return head(env); 6 | } 7 | function enclose_by(frame, env) { 8 | return pair(frame, env); 9 | } 10 | const the_empty_environment = null; 11 | function is_empty_environment(env) { 12 | return is_null(env); 13 | } 14 | 15 | is_empty_environment(the_empty_environment); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection3/5.js: -------------------------------------------------------------------------------- 1 | function make_frame(names, values) { 2 | return pair(names, values); 3 | } 4 | function frame_names(frame) { 5 | return head(frame); 6 | } 7 | function frame_values(frame) { 8 | return tail(frame); 9 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection3/7.js: -------------------------------------------------------------------------------- 1 | // We use a nullary function as temporary value for names whose 2 | // declaration has not yet been evaluated. The purpose of the 3 | // function definition is purely to create a unique identity; 4 | // the function will never be applied and its return value 5 | // (null) is irrelevant. 6 | const no_value_yet = () => null; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection4/4.js: -------------------------------------------------------------------------------- 1 | const primitive_constants = list(list("undefined", undefined), 2 | list("NaN", NaN), 3 | list("Infinity", Infinity), 4 | list("math_PI", math_PI) 5 | ); 6 | 7 | primitive_constants; -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection4/5.js: -------------------------------------------------------------------------------- 1 | function apply_primitive_function(fun, argument_list) { 2 | return apply_in_underlying_javascript( 3 | primitive_implementation(fun), 4 | argument_list); 5 | } 6 | 7 | apply_primitive_function(my_primitive_plus, list(1, 2)); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection5/1.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | return n === 1 3 | ? 1 4 | : factorial(n - 1) * n; 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection6/1.js: -------------------------------------------------------------------------------- 1 | function solve(f, y0, dt) { 2 | const y = integral( () => dy, y0, dt); 3 | const dy = stream_map(f, y); 4 | return y; 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection6/2.js: -------------------------------------------------------------------------------- 1 | let a = 1; 2 | function f(x) { 3 | let b = a + x; 4 | let a = 5; 5 | return a + b; 6 | } 7 | f(10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection6/3.js: -------------------------------------------------------------------------------- 1 | (n => (fact => fact(fact, n)) 2 | ( (ft, k) => k === 1 3 | ? 1 4 | : k * ft(ft, k - 1) 5 | ) 6 | ) 7 | (10); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection6/4.js: -------------------------------------------------------------------------------- 1 | function f(x) { 2 | function is_even(n) { 3 | return n === 0 4 | ? true 5 | : is_odd(n - 1); 6 | } 7 | function is_odd(n) { 8 | return n === 0 9 | ? false 10 | : is_even(n - 1); 11 | } 12 | return is_even(x); 13 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section1/subsection7/1.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | return n === 1 3 | ? 4 | factorial(n - 1) * n; 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section2/subsection1/1.js: -------------------------------------------------------------------------------- 1 | function try_me(a, b) { 2 | return a === 0 ? 1 : b; 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter4/section4/subsection4/1.js: -------------------------------------------------------------------------------- 1 | function square(x) { 2 | return x * x; 3 | } 4 | function sum_of_squares(x, y) { 5 | return square(x) + square(y); 6 | } 7 | sum_of_squares(3, 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section1/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function remainder(n, d) { 2 | return n < d 3 | ? n 4 | : remainder(n - d, d); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section1/subsection2/2.js: -------------------------------------------------------------------------------- 1 | function sqrt(x) { 2 | function good_enough(guess, x) { 3 | return abs(square(guess) - x) < 0.001; 4 | } 5 | function improve(guess, x) { 6 | return average(guess, x / guess); 7 | } 8 | function sqrt_iter(guess, x) { 9 | return good_enough(guess, x) 10 | ? guess 11 | : sqrt_iter(improve(guess, x), x); 12 | } 13 | return sqrt_iter(1.0); 14 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section1/subsection4/1.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | return n === 1 3 | ? 1 4 | : n * factorial(n - 1); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section1/subsection4/2.js: -------------------------------------------------------------------------------- 1 | function gcd(a, b) { 2 | return b === 0 ? a : gcd(b, a % b); 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section1/subsection4/3.js: -------------------------------------------------------------------------------- 1 | function fib(n) { 2 | return n === 0 3 | ? 0 4 | : n === 1 5 | ? 1 6 | : fib(n - 1) + fib(n - 2); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section1/subsection4/5.js: -------------------------------------------------------------------------------- 1 | function expt(b, n) { 2 | return n === 0 3 | ? 1 4 | : b * expt(b, n - 1); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section1/subsection4/6.js: -------------------------------------------------------------------------------- 1 | function expt(b, n) { 2 | function expt_iter(counter, product) { 3 | return counter === 0 4 | ? product 5 | : expt_iter(counter - 1, b * product); 6 | } 7 | return expt_iter(n, 1); 8 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/section2/2.js: -------------------------------------------------------------------------------- 1 | set_register_contents(gcd_machine, "a", 206); 2 | "done" -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/section2/3.js: -------------------------------------------------------------------------------- 1 | set_register_contents(gcd_machine, "b", 40); 2 | "done" -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/section2/4.js: -------------------------------------------------------------------------------- 1 | start(gcd_machine); 2 | "done" -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/section2/5.js: -------------------------------------------------------------------------------- 1 | get_register_contents(gcd_machine, "a"); 2 | 2 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/1.js: -------------------------------------------------------------------------------- 1 | function assemble(controller_text, machine) { 2 | function receive(insts, labels) { 3 | update_insts(insts, labels, machine); 4 | return insts; 5 | } 6 | 7 | return extract_labels(controller_text, receive); 8 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/2.js: -------------------------------------------------------------------------------- 1 | function extract_labels(text, receive) { 2 | function helper(insts, labels) { 3 | const next_inst = head(text); 4 | 5 | return is_string(next_inst) 6 | ? receive(insts, pair(make_label_entry(next_inst, insts), labels)) 7 | : receive(pair(make_instruction(next_inst), insts), labels); 8 | } 9 | 10 | return text === undefined || is_null(text) 11 | ? receive(null, null) 12 | : extract_labels(tail(text), helper); 13 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/3.js: -------------------------------------------------------------------------------- 1 | function extract_labels(text, receive) { 2 | if (is_null(text)) { 3 | return pair(null, null); 4 | 5 | } else { 6 | const result = extract_labels(tail(text)); 7 | const insts = head(result); 8 | const labels = tail(result); 9 | const next_inst = head(text); 10 | 11 | return is_string(next_inst) 12 | ? pair(insts, pair(make_label_entry(next_inst, insts), labels)) 13 | : pair(pair(make_instruction(next_inst), insts), labels); 14 | } 15 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/4.js: -------------------------------------------------------------------------------- 1 | function assemble_alternative(controller_text, machine) { 2 | const result = extract_labels(controller_text); 3 | const insts = head(result); 4 | const labels = tail(result); 5 | 6 | update_insts(insts, labels, machine); 7 | 8 | return insts; 9 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/6.js: -------------------------------------------------------------------------------- 1 | function make_instruction(text) { 2 | return pair(text, null); 3 | } 4 | 5 | function instruction_text(inst) { 6 | return head(inst); 7 | } 8 | 9 | function instruction_execution_proc(inst) { 10 | return tail(inst); 11 | } 12 | 13 | function set_instruction_execution_proc(inst, proc) { 14 | set_tail(inst, proc); 15 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/7.js: -------------------------------------------------------------------------------- 1 | function make_label_entry(label_name, insts) { 2 | return pair(label_name, insts); 3 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/8.js: -------------------------------------------------------------------------------- 1 | function lookup_label(labels, label_name) { 2 | const val = assoc(label_name, labels); 3 | 4 | return val === undefined 5 | ? error(label_name, "Undefined label: ASSEMBLE") 6 | : tail(val); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection2/9.js: -------------------------------------------------------------------------------- 1 | "start" 2 | go_to(label(here)), 3 | "here", 4 | assign("a", list(const(3))), 5 | go_to(label(there)), 6 | "here", 7 | assign("a", list(const(4))), 8 | go_to(label(there)), 9 | "there", -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/11.js: -------------------------------------------------------------------------------- 1 | function is_register_exp(exp) { 2 | return is_tagged_list(exp, "reg"); 3 | } 4 | 5 | function register_exp_reg(exp) { 6 | return head(tail(exp)); 7 | } 8 | 9 | function is_constant_exp(exp) { 10 | return is_tagged_list(exp, "constant"); 11 | } 12 | 13 | function constant_exp_value(exp) { 14 | return head(tail(exp)); 15 | } 16 | 17 | function is_label_exp(exp) { 18 | return is_tagged_list(exp, "label"); 19 | } 20 | 21 | function label_exp_label(exp) { 22 | return head(tail(exp)); 23 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/12.js: -------------------------------------------------------------------------------- 1 | function make_operation_exp(exp, machine, labels, operations) { 2 | const op = lookup_prim(operation_exp_op(exp), operations); 3 | const aprocs = map(e => make_primitive_exp(e, machine, labels), 4 | operation_exp_operands(exp)); 5 | 6 | function perform_make_operation_exp() { 7 | return op(map(p => p(), aprocs)); 8 | } 9 | 10 | return perform_make_operation_exp; 11 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/13.js: -------------------------------------------------------------------------------- 1 | function is_operation_exp(exp) { 2 | return is_pair(exp) && is_tagged_list(head(exp), "op"); 3 | } 4 | 5 | function operation_exp_op(operation_exp) { 6 | return head(tail(head(operation_exp))); 7 | } 8 | 9 | function operation_exp_operands(operation_exp) { 10 | return tail(operation_exp); 11 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/14.js: -------------------------------------------------------------------------------- 1 | function lookup_prim(symbol, operations) { 2 | const val = assoc(symbol, operations); 3 | 4 | return val === undefined 5 | ? error(symbol, "Unknown operation: ASSEMBLE") 6 | : head(tail(val)); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/15.js: -------------------------------------------------------------------------------- 1 | save(y); 2 | save(x); 3 | restore(y); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/2.js: -------------------------------------------------------------------------------- 1 | function make_assign(inst, machine, labels, operations, pc) { 2 | const target = get_register(machine, assign_reg_name(inst)); 3 | const value_exp = assign_value_exp(inst); 4 | const value_fun = is_operation_exp(value_exp) 5 | ? make_operation_exp(value_exp, machine, labels, operations) 6 | : make_primitive_exp(head(value_exp), machine, labels); 7 | 8 | function perform_make_assign() { 9 | set_contents(target, value_fun()); 10 | advance_pc(pc); 11 | } 12 | 13 | return perform_make_assign; 14 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/3.js: -------------------------------------------------------------------------------- 1 | function assign_reg_name(assign_instruction) { 2 | return head(tail(assign_instruction)); 3 | } 4 | 5 | function assign_value_exp(assign_instruction) { 6 | return tail(tail(assign_instruction)); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/4.js: -------------------------------------------------------------------------------- 1 | function advance_pc(pc) { 2 | set_contents(pc, tail(get_contents(pc))); 3 | 4 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection3/9.js: -------------------------------------------------------------------------------- 1 | function make_perform(inst, machine, labels, operations, pc) { 2 | const action = perform_action(inst); 3 | 4 | if (is_operation_exp(action)) { 5 | const action_fun = make_operation_exp(action, machine, labels, operations); 6 | return () => { action_fun(); advance_pc(pc); } 7 | 8 | } else { 9 | error(inst, "Bad PERFORM instruction: ASSEMBLE"); 10 | } 11 | } 12 | 13 | function perform_action(inst) { 14 | return tail(inst); 15 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection4/1.js: -------------------------------------------------------------------------------- 1 | list(list("initialize-stack", () => stack("initialize")), 2 | list("print-stack-statistics", () => stack("print-statistics"))); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section2/subsection4/3.js: -------------------------------------------------------------------------------- 1 | set_breakpoint(gcd_machine, "test-b", 4); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section4/subsection4/1.js: -------------------------------------------------------------------------------- 1 | "print_result", 2 | perform(op("print_stack_statistics")), // added instruction 3 | perform(op("announce_output"), const("/// EC-Eval value:")), 4 | /* ... same as before ... */ -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection5/1.js: -------------------------------------------------------------------------------- 1 | compile(parse(" \ 2 | function factorial(n) { \ 3 | return n === 1 \ 4 | ? 1" \ 5 | : n * factorial(n - 1);\ 6 | } "), 7 | "val", 8 | "next"); -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection5/2.js: -------------------------------------------------------------------------------- 1 | n === 1 2 | ? 1 3 | : n * factorial(n - 1) -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection5/4.js: -------------------------------------------------------------------------------- 1 | assign("val", constant(1)), 2 | go_to(reg("continue")), -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection5/5.js: -------------------------------------------------------------------------------- 1 | function factorial_alt(n) { 2 | return n === 1 3 | ? 1 4 | : factorial_alt(n - 1) * n; 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection5/6.js: -------------------------------------------------------------------------------- 1 | function factorial(n) { 2 | function iter(product, counter) { 3 | return counter > n 4 | ? product 5 | : iter(product * counter, counter + 1); 6 | } 7 | 8 | return iter(1, 1); 9 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection5/7.js: -------------------------------------------------------------------------------- 1 | assign("val", op("lookup-variable-value"), constant("a"), reg("env")), 2 | assign("val", op("+"), reg("val"), constant(1)), -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection6/1.js: -------------------------------------------------------------------------------- 1 | let x = 3; 2 | let y = 4; 3 | (a, b, c, d, e) => { 4 | let y = a * b * x; 5 | let z = c + d + x; 6 | return x * y * z; 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection6/2.js: -------------------------------------------------------------------------------- 1 | ((x, y) => 2 | ((a, b, c, d, e) => 3 | ((y, z) => x * y * z)(a * b * x, c + d + x)))(3, 4) -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection6/3.js: -------------------------------------------------------------------------------- 1 | find_variable("c", list(list("y", "z"), list("a", "b", "c", "d", "e"), list("x", "y"))); 2 | [1, 2] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection6/4.js: -------------------------------------------------------------------------------- 1 | find_variable("x", list(list("y", "z"), list("a", "b", "c", "d", "e"), list("x", "y"))); 2 | [2, 0] -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection6/5.js: -------------------------------------------------------------------------------- 1 | find_variable("w", list(list("y", "z"), list("a", "b", "c", "d", "e"), list("x", "y"))); 2 | not-found -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection6/6.js: -------------------------------------------------------------------------------- 1 | (+ * a b x y) => (a * x) + (b * y) -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/1.js: -------------------------------------------------------------------------------- 1 | compile_and_go( 2 | parse( 3 | "function factorial(n) { 4 | return n === 1 5 | ? 1 6 | : n * factorial(n - 1); 7 | }")); 8 | 9 | ;;; EC-Eval value: 10 | ok 11 | 12 | ;;; EC-Eval input: 13 | (factorial 5) 14 | ;;; EC-Eval value: 15 | 120 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/2.js: -------------------------------------------------------------------------------- 1 | "apply_dispatch", 2 | test(op("primitive_procedure"), reg("proc")), 3 | branch(label("primitive_apply")), 4 | test(op("compound_procedure"), reg("proc")), 5 | branch(label("compound_apply")), 6 | test(op("compiled_procedure"), reg("proc")), 7 | branch(label("compiled_apply")), 8 | go_to(label("unknown_procedure_type")), 9 | 10 | "compiled_apply", 11 | restore("continue"), 12 | assign("val", list(op("compiled_procedure_entry"), reg("proc"))), 13 | go_to(reg("val")), -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/3.js: -------------------------------------------------------------------------------- 1 | function start_eceval() { 2 | the_global_environment = setup_environment(); 3 | set_register_contents(eceval, "flag", false); 4 | return start(eceval); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/4.js: -------------------------------------------------------------------------------- 1 | function user_print(object) { 2 | if (compound_procedure(object)) { 3 | display(list( 4 | "compound_procedure", 5 | procedure_parameters(object), 6 | procedure_body(object), 7 | "")); 8 | } else if (compiled_procedure(object)) { 9 | display(""); 10 | } else { 11 | display(object); 12 | } 13 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/5.js: -------------------------------------------------------------------------------- 1 | "external_entry", 2 | perform(op("initialize_stack")), 3 | assign("env", op("get_global_environment")), 4 | assign("continue", label("print_result")), 5 | go_to(reg("val")), -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/6.js: -------------------------------------------------------------------------------- 1 | function compile_and_go(expression) { 2 | const instructions = assemble(statements(compile(expression, "val", "return")), "eceval"); 3 | the-global-environment = setup-environment(); 4 | set_register_contents("eceval", "val", instructions); 5 | set_register_contents("eceval", "flag", true); 6 | return start("eceval"); 7 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/7.js: -------------------------------------------------------------------------------- 1 | compile_and_go( 2 | parse( 3 | "function factorial(n) { 4 | return n === 1 5 | ? 1 6 | : n * factorial(n - 1); 7 | }")); 8 | 9 | (total-pushes = 0 maximum-depth = 0) 10 | ;;; EC-Eval value: 11 | ok 12 | 13 | ;;; EC-Eval input: 14 | (factorial 5) 15 | (total-pushes = 31 maximum-depth = 14) 16 | ;;; EC-Eval value: 17 | 120 -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/8.js: -------------------------------------------------------------------------------- 1 | function fib(n) { 2 | return n < 2 3 | ? n 4 | : fib(n - 1) + fib(n - 2); 5 | } -------------------------------------------------------------------------------- /src/__tests__/sicp/chapter5/section5/subsection7/9.js: -------------------------------------------------------------------------------- 1 | compile_and_run( 2 | parse( 3 | "function factorial(n) { 4 | return n === 1 5 | ? 1 6 | : n * factorial(n - 1); 7 | }")); 8 | 9 | ;;; EC-Eval value: 10 | ok 11 | 12 | ;;; EC-Eval input: 13 | (factorial 5) 14 | ;;; EC-Eval value: 15 | 120 -------------------------------------------------------------------------------- /src/editors/ace/docTooltip/.gitignore: -------------------------------------------------------------------------------- 1 | *.json 2 | -------------------------------------------------------------------------------- /src/modules/__tests__/moduleUtils.ts: -------------------------------------------------------------------------------- 1 | import { isSourceModule } from '../utils' 2 | 3 | describe('isSourceModule', () => { 4 | test.each([ 5 | ['Relative paths are not source modules', './module.js', false], 6 | ['Absolute paths are not source modules', '/module.js', false], 7 | ['Bare paths are source modules', 'module.js', true] 8 | ])('%#: %s', (_, moduleName, expected) => expect(isSourceModule(moduleName)).toEqual(expected)) 9 | }) 10 | -------------------------------------------------------------------------------- /src/repl/index.ts: -------------------------------------------------------------------------------- 1 | #!/bin/env/node 2 | import { getMainCommand } from './main' 3 | 4 | getMainCommand().parseAsync() 5 | -------------------------------------------------------------------------------- /src/repl/main.ts: -------------------------------------------------------------------------------- 1 | import { Command } from '@commander-js/extra-typings' 2 | 3 | import { getSVMCCommand } from './svmc' 4 | import { getReplCommand } from './repl' 5 | import { getTranspilerCommand } from './transpiler' 6 | 7 | export const getMainCommand = () => 8 | new Command() 9 | .addCommand(getSVMCCommand()) 10 | .addCommand(getTranspilerCommand()) 11 | .addCommand(getReplCommand(), { isDefault: true }) 12 | -------------------------------------------------------------------------------- /src/runner/types.ts: -------------------------------------------------------------------------------- 1 | import type { Program } from 'estree' 2 | import type { Context, IOptions, Result } from '..' 3 | 4 | export type Runner = (program: Program, context: Context, options: IOptions) => Promise 5 | -------------------------------------------------------------------------------- /src/stdlib/object.ts: -------------------------------------------------------------------------------- 1 | import { Value } from '../types' 2 | 3 | export function is_instance_of(a: Value, b: Value) { 4 | return a instanceof b 5 | } 6 | -------------------------------------------------------------------------------- /src/tracer/images/tracer-1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/source-academy/js-slang/17bccf26ecec318970a23bf85b03e8b22a8a23df/src/tracer/images/tracer-1.png -------------------------------------------------------------------------------- /src/tracer/index.ts: -------------------------------------------------------------------------------- 1 | import { StepperBaseNode } from './interface' 2 | 3 | export let redex: { preRedex: StepperBaseNode[]; postRedex: StepperBaseNode[] } = { 4 | preRedex: [], 5 | postRedex: [] 6 | } 7 | 8 | export interface Marker { 9 | redex?: StepperBaseNode | null // area of highlighted ast 10 | redexType?: 'beforeMarker' | 'afterMarker' 11 | explanation?: string 12 | } 13 | 14 | export interface IStepperPropContents { 15 | ast: StepperBaseNode 16 | markers?: Marker[] 17 | } 18 | -------------------------------------------------------------------------------- /src/tracer/interface.ts: -------------------------------------------------------------------------------- 1 | import { StepperExpression, StepperPattern } from './nodes' 2 | 3 | export interface StepperBaseNode { 4 | type: string 5 | isContractible(): boolean 6 | isOneStepPossible(): boolean 7 | contract(): StepperBaseNode 8 | oneStep(): StepperBaseNode 9 | substitute(id: StepperPattern, value: StepperExpression): StepperBaseNode 10 | freeNames(): string[] 11 | allNames(): string[] 12 | rename(before: string, after: string): StepperBaseNode 13 | } 14 | -------------------------------------------------------------------------------- /src/tracer/nodes/Statement/index.ts: -------------------------------------------------------------------------------- 1 | import { StepperBlockStatement } from './BlockStatement' 2 | import { StepperExpressionStatement } from './ExpressionStatement' 3 | import { StepperFunctionDeclaration } from './FunctionDeclaration' 4 | import { StepperReturnStatement } from './ReturnStatement' 5 | import { StepperVariableDeclaration } from './VariableDeclaration' 6 | 7 | export type StepperStatement = 8 | | StepperExpressionStatement 9 | | StepperVariableDeclaration 10 | | StepperBlockStatement 11 | | StepperReturnStatement 12 | | StepperFunctionDeclaration 13 | -------------------------------------------------------------------------------- /src/tracer/tracer_supplementary_slides.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/source-academy/js-slang/17bccf26ecec318970a23bf85b03e8b22a8a23df/src/tracer/tracer_supplementary_slides.pdf -------------------------------------------------------------------------------- /src/typings/acorn-loose.d.ts: -------------------------------------------------------------------------------- 1 | declare module 'acorn-loose' { 2 | import { Options as AcornOptions } from 'acorn' 3 | import * as es from 'estree' 4 | 5 | export function parse(source: string, options: AcornOptions): es.Program 6 | } 7 | -------------------------------------------------------------------------------- /src/typings/astring.d.ts: -------------------------------------------------------------------------------- 1 | declare module 'astring' 2 | -------------------------------------------------------------------------------- /src/typings/escodegen.d.ts: -------------------------------------------------------------------------------- 1 | declare module 'escodegen' 2 | -------------------------------------------------------------------------------- /src/utils/makeWrapper.ts: -------------------------------------------------------------------------------- 1 | // tslint:disable-next-line:ban-types 2 | export function makeWrapper(originalFunc: Function, wrappedFunc: Function) { 3 | for (const prop in originalFunc) { 4 | if (originalFunc.hasOwnProperty(prop)) { 5 | Object.defineProperty(wrappedFunc, prop, Object.getOwnPropertyDescriptor(originalFunc, prop)!) 6 | } 7 | } 8 | for (const prop of ['length', 'name']) { 9 | if (originalFunc.hasOwnProperty(prop)) { 10 | Object.defineProperty(wrappedFunc, prop, Object.getOwnPropertyDescriptor(originalFunc, prop)!) 11 | } 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /tsconfig.prod.json: -------------------------------------------------------------------------------- 1 | { 2 | "extends": "./tsconfig.json", 3 | "compilerOptions": { 4 | "outDir": "./dist", 5 | "noEmit": false 6 | }, 7 | // Excludes are overwritten when using extends, so we 8 | // list all the excludes again 9 | "exclude": [ 10 | "src/stdlib/metacircular-interpreter", 11 | "src/stdlib/**/*.js", 12 | "node_modules", 13 | "dist", 14 | "sicp_publish", 15 | "src/**/__tests__/**", 16 | "src/**/__mocks__/**", 17 | "src/utils/testing" 18 | ] 19 | } 20 | --------------------------------------------------------------------------------