├── .eslintrc.cjs ├── .gitattributes ├── .github ├── dependabot.yml └── workflows │ └── ci.yml ├── .gitignore ├── COPYING ├── README.md ├── build └── main.cjs ├── main.js ├── package-lock.json ├── package.json ├── rollup.cjs.config.js ├── src ├── codebuilder.js ├── codebuilder_wat.js ├── functionbuilder.js ├── functionbuilder_wat.js ├── modulebuilder.js ├── modulebuilder_wat.js ├── protoboard.js └── utils.js └── test ├── basic.js └── protoboard.js /.eslintrc.cjs: -------------------------------------------------------------------------------- 1 | module.exports = { 2 | "plugins": [ 3 | "mocha" 4 | ], 5 | "env": { 6 | "es6": true, 7 | "node": true, 8 | "mocha": true, 9 | "es2020": true, 10 | }, 11 | "globals": { 12 | "WebAssembly": true 13 | }, 14 | "parserOptions": { 15 | "ecmaVersion": 2020, 16 | "sourceType": "module" 17 | }, 18 | "extends": "eslint:recommended", 19 | "rules": { 20 | "indent": [ 21 | "error", 22 | 4 23 | ], 24 | "linebreak-style": [ 25 | "error", 26 | "unix" 27 | ], 28 | "quotes": [ 29 | "error", 30 | "double" 31 | ], 32 | "semi": [ 33 | "error", 34 | "always" 35 | ], 36 | "mocha/no-exclusive-tests": "error" 37 | } 38 | }; 39 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | # Autodetect text files 2 | * text=auto eol=lf 3 | -------------------------------------------------------------------------------- /.github/dependabot.yml: -------------------------------------------------------------------------------- 1 | version: 2 2 | updates: 3 | # Enable version updates for npm 4 | - package-ecosystem: "npm" 5 | # Look for `package.json` and `lock` files in the `root` directory 6 | directory: "/" 7 | # Check the npm registry for updates every day (weekdays) 8 | schedule: 9 | interval: "daily" 10 | -------------------------------------------------------------------------------- /.github/workflows/ci.yml: -------------------------------------------------------------------------------- 1 | name: Continuous Integration 2 | on: [push, pull_request] 3 | 4 | jobs: 5 | test: 6 | name: Test 7 | runs-on: ${{ matrix.os }} 8 | 9 | strategy: 10 | fail-fast: false 11 | matrix: 12 | os: [ubuntu-latest, macos-latest, windows-latest] 13 | node-version: ["12", "14", "16", "18"] 14 | 15 | steps: 16 | - name: Checkout project 17 | uses: actions/checkout@v2 18 | 19 | - name: Setup Node.js 20 | uses: actions/setup-node@v3 21 | with: 22 | node-version: ${{ matrix.node-version }} 23 | check-latest: true 24 | cache: 'npm' 25 | 26 | - name: Install dependencies 27 | run: npm ci 28 | 29 | - name: Run tests 30 | run: npm test 31 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | vk_proof.json 2 | vk_verifier.json 3 | 4 | # Logs 5 | logs 6 | *.log 7 | npm-debug.log* 8 | yarn-debug.log* 9 | yarn-error.log* 10 | 11 | # Runtime data 12 | pids 13 | *.pid 14 | *.seed 15 | *.pid.lock 16 | 17 | # Directory for instrumented libs generated by jscoverage/JSCover 18 | lib-cov 19 | 20 | # Coverage directory used by tools like istanbul 21 | coverage 22 | 23 | # nyc test coverage 24 | .nyc_output 25 | 26 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files) 27 | .grunt 28 | 29 | # Bower dependency directory (https://bower.io/) 30 | bower_components 31 | 32 | # node-waf configuration 33 | .lock-wscript 34 | 35 | # Compiled binary addons (https://nodejs.org/api/addons.html) 36 | build/Release 37 | 38 | # Dependency directories 39 | node_modules/ 40 | jspm_packages/ 41 | 42 | # Typescript v1 declaration files 43 | typings/ 44 | 45 | # Optional npm cache directory 46 | .npm 47 | 48 | # Optional eslint cache 49 | .eslintcache 50 | 51 | # Optional REPL history 52 | .node_repl_history 53 | 54 | # Output of 'npm pack' 55 | *.tgz 56 | 57 | # Yarn Integrity file 58 | .yarn-integrity 59 | 60 | # dotenv environment variables file 61 | .env 62 | 63 | # next.js build output 64 | .next 65 | 66 | tmp 67 | 68 | .DS_Store 69 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. We, the Free Software Foundation, use the 18 | GNU General Public License for most of our software; it applies also to 19 | any other work released this way by its authors. You can apply it to 20 | your programs, too. 21 | 22 | When we speak of free software, we are referring to freedom, not 23 | price. Our General Public Licenses are designed to make sure that you 24 | have the freedom to distribute copies of free software (and charge for 25 | them if you wish), that you receive source code or can get it if you 26 | want it, that you can change the software or use pieces of it in new 27 | free programs, and that you know you can do these things. 28 | 29 | To protect your rights, we need to prevent others from denying you 30 | these rights or asking you to surrender the rights. Therefore, you have 31 | certain responsibilities if you distribute copies of the software, or if 32 | you modify it: responsibilities to respect the freedom of others. 33 | 34 | For example, if you distribute copies of such a program, whether 35 | gratis or for a fee, you must pass on to the recipients the same 36 | freedoms that you received. You must make sure that they, too, receive 37 | or can get the source code. And you must show them these terms so they 38 | know their rights. 39 | 40 | Developers that use the GNU GPL protect your rights with two steps: 41 | (1) assert copyright on the software, and (2) offer you this License 42 | giving you legal permission to copy, distribute and/or modify it. 43 | 44 | For the developers' and authors' protection, the GPL clearly explains 45 | that there is no warranty for this free software. For both users' and 46 | authors' sake, the GPL requires that modified versions be marked as 47 | changed, so that their problems will not be attributed erroneously to 48 | authors of previous versions. 49 | 50 | Some devices are designed to deny users access to install or run 51 | modified versions of the software inside them, although the manufacturer 52 | can do so. This is fundamentally incompatible with the aim of 53 | protecting users' freedom to change the software. The systematic 54 | pattern of such abuse occurs in the area of products for individuals to 55 | use, which is precisely where it is most unacceptable. Therefore, we 56 | have designed this version of the GPL to prohibit the practice for those 57 | products. If such problems arise substantially in other domains, we 58 | stand ready to extend this provision to those domains in future versions 59 | of the GPL, as needed to protect the freedom of users. 60 | 61 | Finally, every program is threatened constantly by software patents. 62 | States should not allow patents to restrict development and use of 63 | software on general-purpose computers, but in those that do, we wish to 64 | avoid the special danger that patents applied to a free program could 65 | make it effectively proprietary. To prevent this, the GPL assures that 66 | patents cannot be used to render the program non-free. 67 | 68 | The precise terms and conditions for copying, distribution and 69 | modification follow. 70 | 71 | TERMS AND CONDITIONS 72 | 73 | 0. Definitions. 74 | 75 | "This License" refers to version 3 of the GNU General Public License. 76 | 77 | "Copyright" also means copyright-like laws that apply to other kinds of 78 | works, such as semiconductor masks. 79 | 80 | "The Program" refers to any copyrightable work licensed under this 81 | License. Each licensee is addressed as "you". "Licensees" and 82 | "recipients" may be individuals or organizations. 83 | 84 | To "modify" a work means to copy from or adapt all or part of the work 85 | in a fashion requiring copyright permission, other than the making of an 86 | exact copy. The resulting work is called a "modified version" of the 87 | earlier work or a work "based on" the earlier work. 88 | 89 | A "covered work" means either the unmodified Program or a work based 90 | on the Program. 91 | 92 | To "propagate" a work means to do anything with it that, without 93 | permission, would make you directly or secondarily liable for 94 | infringement under applicable copyright law, except executing it on a 95 | computer or modifying a private copy. Propagation includes copying, 96 | distribution (with or without modification), making available to the 97 | public, and in some countries other activities as well. 98 | 99 | To "convey" a work means any kind of propagation that enables other 100 | parties to make or receive copies. Mere interaction with a user through 101 | a computer network, with no transfer of a copy, is not conveying. 102 | 103 | An interactive user interface displays "Appropriate Legal Notices" 104 | to the extent that it includes a convenient and prominently visible 105 | feature that (1) displays an appropriate copyright notice, and (2) 106 | tells the user that there is no warranty for the work (except to the 107 | extent that warranties are provided), that licensees may convey the 108 | work under this License, and how to view a copy of this License. If 109 | the interface presents a list of user commands or options, such as a 110 | menu, a prominent item in the list meets this criterion. 111 | 112 | 1. Source Code. 113 | 114 | The "source code" for a work means the preferred form of the work 115 | for making modifications to it. "Object code" means any non-source 116 | form of a work. 117 | 118 | A "Standard Interface" means an interface that either is an official 119 | standard defined by a recognized standards body, or, in the case of 120 | interfaces specified for a particular programming language, one that 121 | is widely used among developers working in that language. 122 | 123 | The "System Libraries" of an executable work include anything, other 124 | than the work as a whole, that (a) is included in the normal form of 125 | packaging a Major Component, but which is not part of that Major 126 | Component, and (b) serves only to enable use of the work with that 127 | Major Component, or to implement a Standard Interface for which an 128 | implementation is available to the public in source code form. A 129 | "Major Component", in this context, means a major essential component 130 | (kernel, window system, and so on) of the specific operating system 131 | (if any) on which the executable work runs, or a compiler used to 132 | produce the work, or an object code interpreter used to run it. 133 | 134 | The "Corresponding Source" for a work in object code form means all 135 | the source code needed to generate, install, and (for an executable 136 | work) run the object code and to modify the work, including scripts to 137 | control those activities. However, it does not include the work's 138 | System Libraries, or general-purpose tools or generally available free 139 | programs which are used unmodified in performing those activities but 140 | which are not part of the work. For example, Corresponding Source 141 | includes interface definition files associated with source files for 142 | the work, and the source code for shared libraries and dynamically 143 | linked subprograms that the work is specifically designed to require, 144 | such as by intimate data communication or control flow between those 145 | subprograms and other parts of the work. 146 | 147 | The Corresponding Source need not include anything that users 148 | can regenerate automatically from other parts of the Corresponding 149 | Source. 150 | 151 | The Corresponding Source for a work in source code form is that 152 | same work. 153 | 154 | 2. Basic Permissions. 155 | 156 | All rights granted under this License are granted for the term of 157 | copyright on the Program, and are irrevocable provided the stated 158 | conditions are met. This License explicitly affirms your unlimited 159 | permission to run the unmodified Program. The output from running a 160 | covered work is covered by this License only if the output, given its 161 | content, constitutes a covered work. This License acknowledges your 162 | rights of fair use or other equivalent, as provided by copyright law. 163 | 164 | You may make, run and propagate covered works that you do not 165 | convey, without conditions so long as your license otherwise remains 166 | in force. You may convey covered works to others for the sole purpose 167 | of having them make modifications exclusively for you, or provide you 168 | with facilities for running those works, provided that you comply with 169 | the terms of this License in conveying all material for which you do 170 | not control copyright. Those thus making or running the covered works 171 | for you must do so exclusively on your behalf, under your direction 172 | and control, on terms that prohibit them from making any copies of 173 | your copyrighted material outside their relationship with you. 174 | 175 | Conveying under any other circumstances is permitted solely under 176 | the conditions stated below. Sublicensing is not allowed; section 10 177 | makes it unnecessary. 178 | 179 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 180 | 181 | No covered work shall be deemed part of an effective technological 182 | measure under any applicable law fulfilling obligations under article 183 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 184 | similar laws prohibiting or restricting circumvention of such 185 | measures. 186 | 187 | When you convey a covered work, you waive any legal power to forbid 188 | circumvention of technological measures to the extent such circumvention 189 | is effected by exercising rights under this License with respect to 190 | the covered work, and you disclaim any intention to limit operation or 191 | modification of the work as a means of enforcing, against the work's 192 | users, your or third parties' legal rights to forbid circumvention of 193 | technological measures. 194 | 195 | 4. Conveying Verbatim Copies. 196 | 197 | You may convey verbatim copies of the Program's source code as you 198 | receive it, in any medium, provided that you conspicuously and 199 | appropriately publish on each copy an appropriate copyright notice; 200 | keep intact all notices stating that this License and any 201 | non-permissive terms added in accord with section 7 apply to the code; 202 | keep intact all notices of the absence of any warranty; and give all 203 | recipients a copy of this License along with the Program. 204 | 205 | You may charge any price or no price for each copy that you convey, 206 | and you may offer support or warranty protection for a fee. 207 | 208 | 5. Conveying Modified Source Versions. 209 | 210 | You may convey a work based on the Program, or the modifications to 211 | produce it from the Program, in the form of source code under the 212 | terms of section 4, provided that you also meet all of these conditions: 213 | 214 | a) The work must carry prominent notices stating that you modified 215 | it, and giving a relevant date. 216 | 217 | b) The work must carry prominent notices stating that it is 218 | released under this License and any conditions added under section 219 | 7. This requirement modifies the requirement in section 4 to 220 | "keep intact all notices". 221 | 222 | c) You must license the entire work, as a whole, under this 223 | License to anyone who comes into possession of a copy. This 224 | License will therefore apply, along with any applicable section 7 225 | additional terms, to the whole of the work, and all its parts, 226 | regardless of how they are packaged. This License gives no 227 | permission to license the work in any other way, but it does not 228 | invalidate such permission if you have separately received it. 229 | 230 | d) If the work has interactive user interfaces, each must display 231 | Appropriate Legal Notices; however, if the Program has interactive 232 | interfaces that do not display Appropriate Legal Notices, your 233 | work need not make them do so. 234 | 235 | A compilation of a covered work with other separate and independent 236 | works, which are not by their nature extensions of the covered work, 237 | and which are not combined with it such as to form a larger program, 238 | in or on a volume of a storage or distribution medium, is called an 239 | "aggregate" if the compilation and its resulting copyright are not 240 | used to limit the access or legal rights of the compilation's users 241 | beyond what the individual works permit. Inclusion of a covered work 242 | in an aggregate does not cause this License to apply to the other 243 | parts of the aggregate. 244 | 245 | 6. Conveying Non-Source Forms. 246 | 247 | You may convey a covered work in object code form under the terms 248 | of sections 4 and 5, provided that you also convey the 249 | machine-readable Corresponding Source under the terms of this License, 250 | in one of these ways: 251 | 252 | a) Convey the object code in, or embodied in, a physical product 253 | (including a physical distribution medium), accompanied by the 254 | Corresponding Source fixed on a durable physical medium 255 | customarily used for software interchange. 256 | 257 | b) Convey the object code in, or embodied in, a physical product 258 | (including a physical distribution medium), accompanied by a 259 | written offer, valid for at least three years and valid for as 260 | long as you offer spare parts or customer support for that product 261 | model, to give anyone who possesses the object code either (1) a 262 | copy of the Corresponding Source for all the software in the 263 | product that is covered by this License, on a durable physical 264 | medium customarily used for software interchange, for a price no 265 | more than your reasonable cost of physically performing this 266 | conveying of source, or (2) access to copy the 267 | Corresponding Source from a network server at no charge. 268 | 269 | c) Convey individual copies of the object code with a copy of the 270 | written offer to provide the Corresponding Source. This 271 | alternative is allowed only occasionally and noncommercially, and 272 | only if you received the object code with such an offer, in accord 273 | with subsection 6b. 274 | 275 | d) Convey the object code by offering access from a designated 276 | place (gratis or for a charge), and offer equivalent access to the 277 | Corresponding Source in the same way through the same place at no 278 | further charge. You need not require recipients to copy the 279 | Corresponding Source along with the object code. If the place to 280 | copy the object code is a network server, the Corresponding Source 281 | may be on a different server (operated by you or a third party) 282 | that supports equivalent copying facilities, provided you maintain 283 | clear directions next to the object code saying where to find the 284 | Corresponding Source. Regardless of what server hosts the 285 | Corresponding Source, you remain obligated to ensure that it is 286 | available for as long as needed to satisfy these requirements. 287 | 288 | e) Convey the object code using peer-to-peer transmission, provided 289 | you inform other peers where the object code and Corresponding 290 | Source of the work are being offered to the general public at no 291 | charge under subsection 6d. 292 | 293 | A separable portion of the object code, whose source code is excluded 294 | from the Corresponding Source as a System Library, need not be 295 | included in conveying the object code work. 296 | 297 | A "User Product" is either (1) a "consumer product", which means any 298 | tangible personal property which is normally used for personal, family, 299 | or household purposes, or (2) anything designed or sold for incorporation 300 | into a dwelling. In determining whether a product is a consumer product, 301 | doubtful cases shall be resolved in favor of coverage. For a particular 302 | product received by a particular user, "normally used" refers to a 303 | typical or common use of that class of product, regardless of the status 304 | of the particular user or of the way in which the particular user 305 | actually uses, or expects or is expected to use, the product. A product 306 | is a consumer product regardless of whether the product has substantial 307 | commercial, industrial or non-consumer uses, unless such uses represent 308 | the only significant mode of use of the product. 309 | 310 | "Installation Information" for a User Product means any methods, 311 | procedures, authorization keys, or other information required to install 312 | and execute modified versions of a covered work in that User Product from 313 | a modified version of its Corresponding Source. The information must 314 | suffice to ensure that the continued functioning of the modified object 315 | code is in no case prevented or interfered with solely because 316 | modification has been made. 317 | 318 | If you convey an object code work under this section in, or with, or 319 | specifically for use in, a User Product, and the conveying occurs as 320 | part of a transaction in which the right of possession and use of the 321 | User Product is transferred to the recipient in perpetuity or for a 322 | fixed term (regardless of how the transaction is characterized), the 323 | Corresponding Source conveyed under this section must be accompanied 324 | by the Installation Information. But this requirement does not apply 325 | if neither you nor any third party retains the ability to install 326 | modified object code on the User Product (for example, the work has 327 | been installed in ROM). 328 | 329 | The requirement to provide Installation Information does not include a 330 | requirement to continue to provide support service, warranty, or updates 331 | for a work that has been modified or installed by the recipient, or for 332 | the User Product in which it has been modified or installed. Access to a 333 | network may be denied when the modification itself materially and 334 | adversely affects the operation of the network or violates the rules and 335 | protocols for communication across the network. 336 | 337 | Corresponding Source conveyed, and Installation Information provided, 338 | in accord with this section must be in a format that is publicly 339 | documented (and with an implementation available to the public in 340 | source code form), and must require no special password or key for 341 | unpacking, reading or copying. 342 | 343 | 7. Additional Terms. 344 | 345 | "Additional permissions" are terms that supplement the terms of this 346 | License by making exceptions from one or more of its conditions. 347 | Additional permissions that are applicable to the entire Program shall 348 | be treated as though they were included in this License, to the extent 349 | that they are valid under applicable law. If additional permissions 350 | apply only to part of the Program, that part may be used separately 351 | under those permissions, but the entire Program remains governed by 352 | this License without regard to the additional permissions. 353 | 354 | When you convey a copy of a covered work, you may at your option 355 | remove any additional permissions from that copy, or from any part of 356 | it. (Additional permissions may be written to require their own 357 | removal in certain cases when you modify the work.) You may place 358 | additional permissions on material, added by you to a covered work, 359 | for which you have or can give appropriate copyright permission. 360 | 361 | Notwithstanding any other provision of this License, for material you 362 | add to a covered work, you may (if authorized by the copyright holders of 363 | that material) supplement the terms of this License with terms: 364 | 365 | a) Disclaiming warranty or limiting liability differently from the 366 | terms of sections 15 and 16 of this License; or 367 | 368 | b) Requiring preservation of specified reasonable legal notices or 369 | author attributions in that material or in the Appropriate Legal 370 | Notices displayed by works containing it; or 371 | 372 | c) Prohibiting misrepresentation of the origin of that material, or 373 | requiring that modified versions of such material be marked in 374 | reasonable ways as different from the original version; or 375 | 376 | d) Limiting the use for publicity purposes of names of licensors or 377 | authors of the material; or 378 | 379 | e) Declining to grant rights under trademark law for use of some 380 | trade names, trademarks, or service marks; or 381 | 382 | f) Requiring indemnification of licensors and authors of that 383 | material by anyone who conveys the material (or modified versions of 384 | it) with contractual assumptions of liability to the recipient, for 385 | any liability that these contractual assumptions directly impose on 386 | those licensors and authors. 387 | 388 | All other non-permissive additional terms are considered "further 389 | restrictions" within the meaning of section 10. If the Program as you 390 | received it, or any part of it, contains a notice stating that it is 391 | governed by this License along with a term that is a further 392 | restriction, you may remove that term. If a license document contains 393 | a further restriction but permits relicensing or conveying under this 394 | License, you may add to a covered work material governed by the terms 395 | of that license document, provided that the further restriction does 396 | not survive such relicensing or conveying. 397 | 398 | If you add terms to a covered work in accord with this section, you 399 | must place, in the relevant source files, a statement of the 400 | additional terms that apply to those files, or a notice indicating 401 | where to find the applicable terms. 402 | 403 | Additional terms, permissive or non-permissive, may be stated in the 404 | form of a separately written license, or stated as exceptions; 405 | the above requirements apply either way. 406 | 407 | 8. Termination. 408 | 409 | You may not propagate or modify a covered work except as expressly 410 | provided under this License. Any attempt otherwise to propagate or 411 | modify it is void, and will automatically terminate your rights under 412 | this License (including any patent licenses granted under the third 413 | paragraph of section 11). 414 | 415 | However, if you cease all violation of this License, then your 416 | license from a particular copyright holder is reinstated (a) 417 | provisionally, unless and until the copyright holder explicitly and 418 | finally terminates your license, and (b) permanently, if the copyright 419 | holder fails to notify you of the violation by some reasonable means 420 | prior to 60 days after the cessation. 421 | 422 | Moreover, your license from a particular copyright holder is 423 | reinstated permanently if the copyright holder notifies you of the 424 | violation by some reasonable means, this is the first time you have 425 | received notice of violation of this License (for any work) from that 426 | copyright holder, and you cure the violation prior to 30 days after 427 | your receipt of the notice. 428 | 429 | Termination of your rights under this section does not terminate the 430 | licenses of parties who have received copies or rights from you under 431 | this License. If your rights have been terminated and not permanently 432 | reinstated, you do not qualify to receive new licenses for the same 433 | material under section 10. 434 | 435 | 9. Acceptance Not Required for Having Copies. 436 | 437 | You are not required to accept this License in order to receive or 438 | run a copy of the Program. Ancillary propagation of a covered work 439 | occurring solely as a consequence of using peer-to-peer transmission 440 | to receive a copy likewise does not require acceptance. However, 441 | nothing other than this License grants you permission to propagate or 442 | modify any covered work. These actions infringe copyright if you do 443 | not accept this License. Therefore, by modifying or propagating a 444 | covered work, you indicate your acceptance of this License to do so. 445 | 446 | 10. Automatic Licensing of Downstream Recipients. 447 | 448 | Each time you convey a covered work, the recipient automatically 449 | receives a license from the original licensors, to run, modify and 450 | propagate that work, subject to this License. You are not responsible 451 | for enforcing compliance by third parties with this License. 452 | 453 | An "entity transaction" is a transaction transferring control of an 454 | organization, or substantially all assets of one, or subdividing an 455 | organization, or merging organizations. If propagation of a covered 456 | work results from an entity transaction, each party to that 457 | transaction who receives a copy of the work also receives whatever 458 | licenses to the work the party's predecessor in interest had or could 459 | give under the previous paragraph, plus a right to possession of the 460 | Corresponding Source of the work from the predecessor in interest, if 461 | the predecessor has it or can get it with reasonable efforts. 462 | 463 | You may not impose any further restrictions on the exercise of the 464 | rights granted or affirmed under this License. For example, you may 465 | not impose a license fee, royalty, or other charge for exercise of 466 | rights granted under this License, and you may not initiate litigation 467 | (including a cross-claim or counterclaim in a lawsuit) alleging that 468 | any patent claim is infringed by making, using, selling, offering for 469 | sale, or importing the Program or any portion of it. 470 | 471 | 11. Patents. 472 | 473 | A "contributor" is a copyright holder who authorizes use under this 474 | License of the Program or a work on which the Program is based. The 475 | work thus licensed is called the contributor's "contributor version". 476 | 477 | A contributor's "essential patent claims" are all patent claims 478 | owned or controlled by the contributor, whether already acquired or 479 | hereafter acquired, that would be infringed by some manner, permitted 480 | by this License, of making, using, or selling its contributor version, 481 | but do not include claims that would be infringed only as a 482 | consequence of further modification of the contributor version. For 483 | purposes of this definition, "control" includes the right to grant 484 | patent sublicenses in a manner consistent with the requirements of 485 | this License. 486 | 487 | Each contributor grants you a non-exclusive, worldwide, royalty-free 488 | patent license under the contributor's essential patent claims, to 489 | make, use, sell, offer for sale, import and otherwise run, modify and 490 | propagate the contents of its contributor version. 491 | 492 | In the following three paragraphs, a "patent license" is any express 493 | agreement or commitment, however denominated, not to enforce a patent 494 | (such as an express permission to practice a patent or covenant not to 495 | sue for patent infringement). To "grant" such a patent license to a 496 | party means to make such an agreement or commitment not to enforce a 497 | patent against the party. 498 | 499 | If you convey a covered work, knowingly relying on a patent license, 500 | and the Corresponding Source of the work is not available for anyone 501 | to copy, free of charge and under the terms of this License, through a 502 | publicly available network server or other readily accessible means, 503 | then you must either (1) cause the Corresponding Source to be so 504 | available, or (2) arrange to deprive yourself of the benefit of the 505 | patent license for this particular work, or (3) arrange, in a manner 506 | consistent with the requirements of this License, to extend the patent 507 | license to downstream recipients. "Knowingly relying" means you have 508 | actual knowledge that, but for the patent license, your conveying the 509 | covered work in a country, or your recipient's use of the covered work 510 | in a country, would infringe one or more identifiable patents in that 511 | country that you have reason to believe are valid. 512 | 513 | If, pursuant to or in connection with a single transaction or 514 | arrangement, you convey, or propagate by procuring conveyance of, a 515 | covered work, and grant a patent license to some of the parties 516 | receiving the covered work authorizing them to use, propagate, modify 517 | or convey a specific copy of the covered work, then the patent license 518 | you grant is automatically extended to all recipients of the covered 519 | work and works based on it. 520 | 521 | A patent license is "discriminatory" if it does not include within 522 | the scope of its coverage, prohibits the exercise of, or is 523 | conditioned on the non-exercise of one or more of the rights that are 524 | specifically granted under this License. You may not convey a covered 525 | work if you are a party to an arrangement with a third party that is 526 | in the business of distributing software, under which you make payment 527 | to the third party based on the extent of your activity of conveying 528 | the work, and under which the third party grants, to any of the 529 | parties who would receive the covered work from you, a discriminatory 530 | patent license (a) in connection with copies of the covered work 531 | conveyed by you (or copies made from those copies), or (b) primarily 532 | for and in connection with specific products or compilations that 533 | contain the covered work, unless you entered into that arrangement, 534 | or that patent license was granted, prior to 28 March 2007. 535 | 536 | Nothing in this License shall be construed as excluding or limiting 537 | any implied license or other defenses to infringement that may 538 | otherwise be available to you under applicable patent law. 539 | 540 | 12. No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # wasmbuilder 2 | 3 | Javascript package that helps to build wasm code by hand. 4 | 5 | 6 | ## License 7 | 8 | WasmBuilder is part of the iden3 project copyright 2019 0KIMS association and published with GPL-3 license. Please check the COPYING file for more details. 9 | -------------------------------------------------------------------------------- /build/main.cjs: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | Object.defineProperty(exports, '__esModule', { value: true }); 4 | 5 | /* 6 | Copyright 2019 0KIMS association. 7 | 8 | This file is part of wasmbuilder 9 | 10 | wasmbuilder is a free software: you can redistribute it and/or modify it 11 | under the terms of the GNU General Public License as published by 12 | the Free Software Foundation, either version 3 of the License, or 13 | (at your option) any later version. 14 | 15 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 17 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 18 | License for more details. 19 | 20 | You should have received a copy of the GNU General Public License 21 | along with wasmbuilder. If not, see . 22 | */ 23 | 24 | function toNumber(n) { 25 | return BigInt(n); 26 | } 27 | 28 | function isNegative(n) { 29 | return n < 0n; 30 | } 31 | 32 | function isZero(n) { 33 | return n === 0n; 34 | } 35 | 36 | function bitLength(n) { 37 | if (isNegative(n)) { 38 | return n.toString(2).length - 1; // discard the - sign 39 | } else { 40 | return n.toString(2).length; 41 | } 42 | } 43 | 44 | function u32(n) { 45 | const b = []; 46 | const v = toNumber(n); 47 | b.push(Number(v & 0xFFn)); 48 | b.push(Number(v >> 8n & 0xFFn)); 49 | b.push(Number(v >> 16n & 0xFFn)); 50 | b.push(Number(v >> 24n & 0xFFn)); 51 | return b; 52 | } 53 | 54 | function toUTF8Array(str) { 55 | var utf8 = []; 56 | for (var i=0; i < str.length; i++) { 57 | var charcode = str.charCodeAt(i); 58 | if (charcode < 0x80) utf8.push(charcode); 59 | else if (charcode < 0x800) { 60 | utf8.push(0xc0 | (charcode >> 6), 61 | 0x80 | (charcode & 0x3f)); 62 | } 63 | else if (charcode < 0xd800 || charcode >= 0xe000) { 64 | utf8.push(0xe0 | (charcode >> 12), 65 | 0x80 | ((charcode>>6) & 0x3f), 66 | 0x80 | (charcode & 0x3f)); 67 | } 68 | // surrogate pair 69 | else { 70 | i++; 71 | // UTF-16 encodes 0x10000-0x10FFFF by 72 | // subtracting 0x10000 and splitting the 73 | // 20 bits of 0x0-0xFFFFF into two halves 74 | charcode = 0x10000 + (((charcode & 0x3ff)<<10) 75 | | (str.charCodeAt(i) & 0x3ff)); 76 | utf8.push(0xf0 | (charcode >>18), 77 | 0x80 | ((charcode>>12) & 0x3f), 78 | 0x80 | ((charcode>>6) & 0x3f), 79 | 0x80 | (charcode & 0x3f)); 80 | } 81 | } 82 | return utf8; 83 | } 84 | 85 | function string(str) { 86 | const bytes = toUTF8Array(str); 87 | return [ ...varuint32(bytes.length), ...bytes ]; 88 | } 89 | 90 | function varuint(n) { 91 | const code = []; 92 | let v = toNumber(n); 93 | if (isNegative(v)) throw new Error("Number cannot be negative"); 94 | while (!isZero(v)) { 95 | code.push(Number(v & 0x7Fn)); 96 | v = v >> 7n; 97 | } 98 | if (code.length==0) code.push(0); 99 | for (let i=0; i 0xFFFFFFFFn) throw new Error("Number too big"); 132 | if (v > 0x7FFFFFFFn) v = v - 0x100000000n; 133 | // bigInt("-80000000", 16) as base10 134 | if (v < -2147483648n) throw new Error("Number too small"); 135 | return varint(v); 136 | } 137 | 138 | function varint64(n) { 139 | let v = toNumber(n); 140 | if (v > 0xFFFFFFFFFFFFFFFFn) throw new Error("Number too big"); 141 | if (v > 0x7FFFFFFFFFFFFFFFn) v = v - 0x10000000000000000n; 142 | // bigInt("-8000000000000000", 16) as base10 143 | if (v < -9223372036854775808n) throw new Error("Number too small"); 144 | return varint(v); 145 | } 146 | 147 | function varuint32(n) { 148 | let v = toNumber(n); 149 | if (v > 0xFFFFFFFFn) throw new Error("Number too big"); 150 | return varuint(v); 151 | } 152 | 153 | function toHexString(byteArray) { 154 | return Array.from(byteArray, function(byte) { 155 | return ("0" + (byte & 0xFF).toString(16)).slice(-2); 156 | }).join(""); 157 | } 158 | 159 | function ident(text) { 160 | if (typeof text === "string") { 161 | let lines = text.split("\n"); 162 | for (let i=0; i. 191 | */ 192 | 193 | class CodeBuilder { 194 | constructor(func) { 195 | this.func = func; 196 | this.functionName = func.functionName; 197 | this.module = func.module; 198 | } 199 | 200 | setLocal(localName, valCode) { 201 | const idx = this.func.localIdxByName[localName]; 202 | if (idx === undefined) 203 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 204 | return [...valCode, 0x21, ...varuint32( idx )]; 205 | } 206 | 207 | teeLocal(localName, valCode) { 208 | const idx = this.func.localIdxByName[localName]; 209 | if (idx === undefined) 210 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 211 | return [...valCode, 0x22, ...varuint32( idx )]; 212 | } 213 | 214 | getLocal(localName) { 215 | const idx = this.func.localIdxByName[localName]; 216 | if (idx === undefined) 217 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 218 | return [0x20, ...varuint32( idx )]; 219 | } 220 | 221 | i64_load8_s(idxCode, _offset, _align) { 222 | const offset = _offset || 0; 223 | const align = (_align === undefined) ? 0 : _align; // 8 bits alignment by default 224 | return [...idxCode, 0x30, align, ...varuint32(offset)]; 225 | } 226 | 227 | i64_load8_u(idxCode, _offset, _align) { 228 | const offset = _offset || 0; 229 | const align = (_align === undefined) ? 0 : _align; // 8 bits alignment by default 230 | return [...idxCode, 0x31, align, ...varuint32(offset)]; 231 | } 232 | 233 | i64_load16_s(idxCode, _offset, _align) { 234 | const offset = _offset || 0; 235 | const align = (_align === undefined) ? 1 : _align; // 16 bits alignment by default 236 | return [...idxCode, 0x32, align, ...varuint32(offset)]; 237 | } 238 | 239 | i64_load16_u(idxCode, _offset, _align) { 240 | const offset = _offset || 0; 241 | const align = (_align === undefined) ? 1 : _align; // 16 bits alignment by default 242 | return [...idxCode, 0x33, align, ...varuint32(offset)]; 243 | } 244 | 245 | i64_load32_s(idxCode, _offset, _align) { 246 | const offset = _offset || 0; 247 | const align = (_align === undefined) ? 2 : _align; // 32 bits alignment by default 248 | return [...idxCode, 0x34, align, ...varuint32(offset)]; 249 | } 250 | 251 | i64_load32_u(idxCode, _offset, _align) { 252 | const offset = _offset || 0; 253 | const align = (_align === undefined) ? 2 : _align; // 32 bits alignment by default 254 | return [...idxCode, 0x35, align, ...varuint32(offset)]; 255 | } 256 | 257 | i64_load(idxCode, _offset, _align) { 258 | const offset = _offset || 0; 259 | const align = (_align === undefined) ? 3 : _align; // 64 bits alignment by default 260 | return [...idxCode, 0x29, align, ...varuint32(offset)]; 261 | } 262 | 263 | 264 | i64_store(idxCode, _offset, _align, _codeVal) { 265 | let offset, align, codeVal; 266 | if (Array.isArray(_offset)) { 267 | offset = 0; 268 | align = 3; 269 | codeVal = _offset; 270 | } else if (Array.isArray(_align)) { 271 | offset = _offset; 272 | align = 3; 273 | codeVal = _align; 274 | } else if (Array.isArray(_codeVal)) { 275 | offset = _offset; 276 | align = _align; 277 | codeVal = _codeVal; 278 | } 279 | return [...idxCode, ...codeVal, 0x37, align, ...varuint32(offset)]; 280 | } 281 | 282 | i64_store32(idxCode, _offset, _align, _codeVal) { 283 | let offset, align, codeVal; 284 | if (Array.isArray(_offset)) { 285 | offset = 0; 286 | align = 2; 287 | codeVal = _offset; 288 | } else if (Array.isArray(_align)) { 289 | offset = _offset; 290 | align = 2; 291 | codeVal = _align; 292 | } else if (Array.isArray(_codeVal)) { 293 | offset = _offset; 294 | align = _align; 295 | codeVal = _codeVal; 296 | } 297 | return [...idxCode, ...codeVal, 0x3e, align, ...varuint32(offset)]; 298 | } 299 | 300 | 301 | i64_store16(idxCode, _offset, _align, _codeVal) { 302 | let offset, align, codeVal; 303 | if (Array.isArray(_offset)) { 304 | offset = 0; 305 | align = 1; 306 | codeVal = _offset; 307 | } else if (Array.isArray(_align)) { 308 | offset = _offset; 309 | align = 1; 310 | codeVal = _align; 311 | } else if (Array.isArray(_codeVal)) { 312 | offset = _offset; 313 | align = _align; 314 | codeVal = _codeVal; 315 | } 316 | return [...idxCode, ...codeVal, 0x3d, align, ...varuint32(offset)]; 317 | } 318 | 319 | 320 | i64_store8(idxCode, _offset, _align, _codeVal) { 321 | let offset, align, codeVal; 322 | if (Array.isArray(_offset)) { 323 | offset = 0; 324 | align = 0; 325 | codeVal = _offset; 326 | } else if (Array.isArray(_align)) { 327 | offset = _offset; 328 | align = 0; 329 | codeVal = _align; 330 | } else if (Array.isArray(_codeVal)) { 331 | offset = _offset; 332 | align = _align; 333 | codeVal = _codeVal; 334 | } 335 | return [...idxCode, ...codeVal, 0x3c, align, ...varuint32(offset)]; 336 | } 337 | 338 | i32_load8_s(idxCode, _offset, _align) { 339 | const offset = _offset || 0; 340 | const align = (_align === undefined) ? 0 : _align; // 32 bits alignment by default 341 | return [...idxCode, 0x2c, align, ...varuint32(offset)]; 342 | } 343 | 344 | i32_load8_u(idxCode, _offset, _align) { 345 | const offset = _offset || 0; 346 | const align = (_align === undefined) ? 0 : _align; // 32 bits alignment by default 347 | return [...idxCode, 0x2d, align, ...varuint32(offset)]; 348 | } 349 | 350 | i32_load16_s(idxCode, _offset, _align) { 351 | const offset = _offset || 0; 352 | const align = (_align === undefined) ? 1 : _align; // 32 bits alignment by default 353 | return [...idxCode, 0x2e, align, ...varuint32(offset)]; 354 | } 355 | 356 | i32_load16_u(idxCode, _offset, _align) { 357 | const offset = _offset || 0; 358 | const align = (_align === undefined) ? 1 : _align; // 32 bits alignment by default 359 | return [...idxCode, 0x2f, align, ...varuint32(offset)]; 360 | } 361 | 362 | i32_load(idxCode, _offset, _align) { 363 | const offset = _offset || 0; 364 | const align = (_align === undefined) ? 2 : _align; // 32 bits alignment by default 365 | return [...idxCode, 0x28, align, ...varuint32(offset)]; 366 | } 367 | 368 | i32_store(idxCode, _offset, _align, _codeVal) { 369 | let offset, align, codeVal; 370 | if (Array.isArray(_offset)) { 371 | offset = 0; 372 | align = 2; 373 | codeVal = _offset; 374 | } else if (Array.isArray(_align)) { 375 | offset = _offset; 376 | align = 2; 377 | codeVal = _align; 378 | } else if (Array.isArray(_codeVal)) { 379 | offset = _offset; 380 | align = _align; 381 | codeVal = _codeVal; 382 | } 383 | return [...idxCode, ...codeVal, 0x36, align, ...varuint32(offset)]; 384 | } 385 | 386 | 387 | i32_store16(idxCode, _offset, _align, _codeVal) { 388 | let offset, align, codeVal; 389 | if (Array.isArray(_offset)) { 390 | offset = 0; 391 | align = 1; 392 | codeVal = _offset; 393 | } else if (Array.isArray(_align)) { 394 | offset = _offset; 395 | align = 1; 396 | codeVal = _align; 397 | } else if (Array.isArray(_codeVal)) { 398 | offset = _offset; 399 | align = _align; 400 | codeVal = _codeVal; 401 | } 402 | return [...idxCode, ...codeVal, 0x3b, align, ...varuint32(offset)]; 403 | } 404 | 405 | i32_store8(idxCode, _offset, _align, _codeVal) { 406 | let offset, align, codeVal; 407 | if (Array.isArray(_offset)) { 408 | offset = 0; 409 | align = 0; 410 | codeVal = _offset; 411 | } else if (Array.isArray(_align)) { 412 | offset = _offset; 413 | align = 0; 414 | codeVal = _align; 415 | } else if (Array.isArray(_codeVal)) { 416 | offset = _offset; 417 | align = _align; 418 | codeVal = _codeVal; 419 | } 420 | return [...idxCode, ...codeVal, 0x3a, align, ...varuint32(offset)]; 421 | } 422 | 423 | call(fnName, ...args) { 424 | const idx = this.module.functionIdxByName[fnName]; 425 | if (idx === undefined) 426 | throw new Error(`Function not defined: Function: ${fnName}`); 427 | return [...[].concat(...args), 0x10, ...varuint32(idx)]; 428 | } 429 | 430 | call_indirect(fnIdx, ...args) { 431 | return [...[].concat(...args), ...fnIdx, 0x11, 0, 0]; 432 | } 433 | 434 | if(condCode, thenCode, elseCode) { 435 | if (elseCode) { 436 | return [...condCode, 0x04, 0x40, ...thenCode, 0x05, ...elseCode, 0x0b]; 437 | } else { 438 | return [...condCode, 0x04, 0x40, ...thenCode, 0x0b]; 439 | } 440 | } 441 | 442 | block(bCode) { return [0x02, 0x40, ...bCode, 0x0b]; } 443 | loop(...args) { 444 | return [0x03, 0x40, ...[].concat(...[...args]), 0x0b]; 445 | } 446 | br_if(relPath, condCode) { return [...condCode, 0x0d, ...varuint32(relPath)]; } 447 | br(relPath) { return [0x0c, ...varuint32(relPath)]; } 448 | ret(rCode) { return [...rCode, 0x0f]; } 449 | drop(dCode) { return [...dCode, 0x1a]; } 450 | 451 | i64_const(num) { return [0x42, ...varint64(num)]; } 452 | i32_const(num) { return [0x41, ...varint32(num)]; } 453 | 454 | 455 | i64_eqz(opcode) { return [...opcode, 0x50]; } 456 | i64_eq(op1code, op2code) { return [...op1code, ...op2code, 0x51]; } 457 | i64_ne(op1code, op2code) { return [...op1code, ...op2code, 0x52]; } 458 | i64_lt_s(op1code, op2code) { return [...op1code, ...op2code, 0x53]; } 459 | i64_lt_u(op1code, op2code) { return [...op1code, ...op2code, 0x54]; } 460 | i64_gt_s(op1code, op2code) { return [...op1code, ...op2code, 0x55]; } 461 | i64_gt_u(op1code, op2code) { return [...op1code, ...op2code, 0x56]; } 462 | i64_le_s(op1code, op2code) { return [...op1code, ...op2code, 0x57]; } 463 | i64_le_u(op1code, op2code) { return [...op1code, ...op2code, 0x58]; } 464 | i64_ge_s(op1code, op2code) { return [...op1code, ...op2code, 0x59]; } 465 | i64_ge_u(op1code, op2code) { return [...op1code, ...op2code, 0x5a]; } 466 | i64_add(op1code, op2code) { return [...op1code, ...op2code, 0x7c]; } 467 | i64_sub(op1code, op2code) { return [...op1code, ...op2code, 0x7d]; } 468 | i64_mul(op1code, op2code) { return [...op1code, ...op2code, 0x7e]; } 469 | i64_div_s(op1code, op2code) { return [...op1code, ...op2code, 0x7f]; } 470 | i64_div_u(op1code, op2code) { return [...op1code, ...op2code, 0x80]; } 471 | i64_rem_s(op1code, op2code) { return [...op1code, ...op2code, 0x81]; } 472 | i64_rem_u(op1code, op2code) { return [...op1code, ...op2code, 0x82]; } 473 | i64_and(op1code, op2code) { return [...op1code, ...op2code, 0x83]; } 474 | i64_or(op1code, op2code) { return [...op1code, ...op2code, 0x84]; } 475 | i64_xor(op1code, op2code) { return [...op1code, ...op2code, 0x85]; } 476 | i64_shl(op1code, op2code) { return [...op1code, ...op2code, 0x86]; } 477 | i64_shr_s(op1code, op2code) { return [...op1code, ...op2code, 0x87]; } 478 | i64_shr_u(op1code, op2code) { return [...op1code, ...op2code, 0x88]; } 479 | i64_extend_i32_s(op1code) { return [...op1code, 0xac]; } 480 | i64_extend_i32_u(op1code) { return [...op1code, 0xad]; } 481 | i64_clz(op1code) { return [...op1code, 0x79]; } 482 | i64_ctz(op1code) { return [...op1code, 0x7a]; } 483 | 484 | i32_eqz(op1code) { return [...op1code, 0x45]; } 485 | i32_eq(op1code, op2code) { return [...op1code, ...op2code, 0x46]; } 486 | i32_ne(op1code, op2code) { return [...op1code, ...op2code, 0x47]; } 487 | i32_lt_s(op1code, op2code) { return [...op1code, ...op2code, 0x48]; } 488 | i32_lt_u(op1code, op2code) { return [...op1code, ...op2code, 0x49]; } 489 | i32_gt_s(op1code, op2code) { return [...op1code, ...op2code, 0x4a]; } 490 | i32_gt_u(op1code, op2code) { return [...op1code, ...op2code, 0x4b]; } 491 | i32_le_s(op1code, op2code) { return [...op1code, ...op2code, 0x4c]; } 492 | i32_le_u(op1code, op2code) { return [...op1code, ...op2code, 0x4d]; } 493 | i32_ge_s(op1code, op2code) { return [...op1code, ...op2code, 0x4e]; } 494 | i32_ge_u(op1code, op2code) { return [...op1code, ...op2code, 0x4f]; } 495 | i32_add(op1code, op2code) { return [...op1code, ...op2code, 0x6a]; } 496 | i32_sub(op1code, op2code) { return [...op1code, ...op2code, 0x6b]; } 497 | i32_mul(op1code, op2code) { return [...op1code, ...op2code, 0x6c]; } 498 | i32_div_s(op1code, op2code) { return [...op1code, ...op2code, 0x6d]; } 499 | i32_div_u(op1code, op2code) { return [...op1code, ...op2code, 0x6e]; } 500 | i32_rem_s(op1code, op2code) { return [...op1code, ...op2code, 0x6f]; } 501 | i32_rem_u(op1code, op2code) { return [...op1code, ...op2code, 0x70]; } 502 | i32_and(op1code, op2code) { return [...op1code, ...op2code, 0x71]; } 503 | i32_or(op1code, op2code) { return [...op1code, ...op2code, 0x72]; } 504 | i32_xor(op1code, op2code) { return [...op1code, ...op2code, 0x73]; } 505 | i32_shl(op1code, op2code) { return [...op1code, ...op2code, 0x74]; } 506 | i32_shr_s(op1code, op2code) { return [...op1code, ...op2code, 0x75]; } 507 | i32_shr_u(op1code, op2code) { return [...op1code, ...op2code, 0x76]; } 508 | i32_rotl(op1code, op2code) { return [...op1code, ...op2code, 0x77]; } 509 | i32_rotr(op1code, op2code) { return [...op1code, ...op2code, 0x78]; } 510 | i32_wrap_i64(op1code) { return [...op1code, 0xa7]; } 511 | i32_clz(op1code) { return [...op1code, 0x67]; } 512 | i32_ctz(op1code) { return [...op1code, 0x68]; } 513 | 514 | unreachable() { return [ 0x0 ]; } 515 | 516 | current_memory() { return [ 0x3f, 0]; } 517 | 518 | comment() { return []; } 519 | } 520 | 521 | /* 522 | Copyright 2019 0KIMS association. 523 | 524 | This file is part of wasmbuilder 525 | 526 | wasmbuilder is a free software: you can redistribute it and/or modify it 527 | under the terms of the GNU General Public License as published by 528 | the Free Software Foundation, either version 3 of the License, or 529 | (at your option) any later version. 530 | 531 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 532 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 533 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 534 | License for more details. 535 | 536 | You should have received a copy of the GNU General Public License 537 | along with wasmbuilder. If not, see . 538 | */ 539 | 540 | const typeCodes = { 541 | "i32": 0x7f, 542 | "i64": 0x7e, 543 | "f32": 0x7d, 544 | "f64": 0x7c, 545 | "anyfunc": 0x70, 546 | "func": 0x60, 547 | "emptyblock": 0x40 548 | }; 549 | 550 | 551 | class FunctionBuilder { 552 | 553 | constructor (module, fnName, fnType, moduleName, fieldName) { 554 | if (fnType == "import") { 555 | this.fnType = "import"; 556 | this.moduleName = moduleName; 557 | this.fieldName = fieldName; 558 | } else if (fnType == "internal") { 559 | this.fnType = "internal"; 560 | } else { 561 | throw new Error("Invalid function fnType: " + fnType); 562 | } 563 | this.module = module; 564 | this.fnName = fnName; 565 | this.params = []; 566 | this.locals = []; 567 | this.localIdxByName = {}; 568 | this.code = []; 569 | this.returnType = null; 570 | this.nextLocal =0; 571 | } 572 | 573 | addParam(paramName, paramType) { 574 | if (this.localIdxByName[paramName]) 575 | throw new Error(`param already exists. Function: ${this.fnName}, Param: ${paramName} `); 576 | const idx = this.nextLocal++; 577 | this.localIdxByName[paramName] = idx; 578 | this.params.push({ 579 | type: paramType 580 | }); 581 | } 582 | 583 | addLocal(localName, localType, _length) { 584 | const length = _length || 1; 585 | if (this.localIdxByName[localName]) 586 | throw new Error(`local already exists. Function: ${this.fnName}, Param: ${localName} `); 587 | const idx = this.nextLocal++; 588 | this.localIdxByName[localName] = idx; 589 | this.locals.push({ 590 | type: localType, 591 | length: length 592 | }); 593 | } 594 | 595 | setReturnType(returnType) { 596 | if (this.returnType) 597 | throw new Error(`returnType already defined. Function: ${this.fnName}`); 598 | this.returnType = returnType; 599 | } 600 | 601 | getSignature() { 602 | const params = [...varuint32(this.params.length), ...this.params.map((p) => typeCodes[p.type])]; 603 | const returns = this.returnType ? [0x01, typeCodes[this.returnType]] : [0]; 604 | return [0x60, ...params, ...returns]; 605 | } 606 | 607 | getBody() { 608 | const locals = this.locals.map((l) => [ 609 | ...varuint32(l.length), 610 | typeCodes[l.type] 611 | ]); 612 | 613 | const body = [ 614 | ...varuint32(this.locals.length), 615 | ...[].concat(...locals), 616 | ...this.code, 617 | 0x0b 618 | ]; 619 | return [ 620 | ...varuint32(body.length), 621 | ...body 622 | ]; 623 | } 624 | 625 | addCode(...code) { 626 | this.code.push(...[].concat(...[...code])); 627 | } 628 | 629 | getCodeBuilder() { 630 | return new CodeBuilder(this); 631 | } 632 | } 633 | 634 | /* 635 | Copyright 2019 0KIMS association. 636 | 637 | This file is part of wasmbuilder 638 | 639 | wasmbuilder is a free software: you can redistribute it and/or modify it 640 | under the terms of the GNU General Public License as published by 641 | the Free Software Foundation, either version 3 of the License, or 642 | (at your option) any later version. 643 | 644 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 645 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 646 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 647 | License for more details. 648 | 649 | You should have received a copy of the GNU General Public License 650 | along with wasmbuilder. If not, see . 651 | */ 652 | 653 | class ModuleBuilder { 654 | 655 | constructor() { 656 | this.functions = []; 657 | this.functionIdxByName = {}; 658 | this.nImportFunctions = 0; 659 | this.nInternalFunctions =0; 660 | this.memory = { 661 | pagesSize: 1, 662 | moduleName: "env", 663 | fieldName: "memory" 664 | }; 665 | this.free = 8; 666 | this.datas = []; 667 | this.modules = {}; 668 | this.exports = []; 669 | this.functionsTable = []; 670 | } 671 | 672 | build() { 673 | this._setSignatures(); 674 | return new Uint8Array([ 675 | ...u32(0x6d736100), 676 | ...u32(1), 677 | ...this._buildType(), 678 | ...this._buildImport(), 679 | ...this._buildFunctionDeclarations(), 680 | ...this._buildFunctionsTable(), 681 | ...this._buildExports(), 682 | ...this._buildElements(), 683 | ...this._buildCode(), 684 | ...this._buildData() 685 | ]); 686 | } 687 | 688 | addFunction(fnName) { 689 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 690 | throw new Error(`Function already defined: ${fnName}`); 691 | 692 | const idx = this.functions.length; 693 | this.functionIdxByName[fnName] = idx; 694 | 695 | this.functions.push(new FunctionBuilder(this, fnName, "internal")); 696 | 697 | this.nInternalFunctions++; 698 | return this.functions[idx]; 699 | } 700 | 701 | addIimportFunction(fnName, moduleName, _fieldName) { 702 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 703 | throw new Error(`Function already defined: ${fnName}`); 704 | 705 | if ( (this.functions.length>0) 706 | &&(this.functions[this.functions.length-1].type == "internal")) 707 | throw new Error(`Import functions must be declared before internal: ${fnName}`); 708 | 709 | let fieldName = _fieldName || fnName; 710 | 711 | const idx = this.functions.length; 712 | this.functionIdxByName[fnName] = idx; 713 | 714 | this.functions.push(new FunctionBuilder(this, fnName, "import", moduleName, fieldName)); 715 | 716 | this.nImportFunctions ++; 717 | return this.functions[idx]; 718 | } 719 | 720 | setMemory(pagesSize, moduleName, fieldName) { 721 | this.memory = { 722 | pagesSize: pagesSize, 723 | moduleName: moduleName || "env", 724 | fieldName: fieldName || "memory" 725 | }; 726 | } 727 | 728 | exportFunction(fnName, _exportName) { 729 | const exportName = _exportName || fnName; 730 | if (typeof(this.functionIdxByName[fnName]) === "undefined") 731 | throw new Error(`Function not defined: ${fnName}`); 732 | const idx = this.functionIdxByName[fnName]; 733 | if (exportName != fnName) { 734 | this.functionIdxByName[exportName] = idx; 735 | } 736 | this.exports.push({ 737 | exportName: exportName, 738 | idx: idx 739 | }); 740 | } 741 | 742 | addFunctionToTable(fnName) { 743 | const idx = this.functionIdxByName[fnName]; 744 | this.functionsTable.push(idx); 745 | } 746 | 747 | addData(offset, bytes) { 748 | this.datas.push({ 749 | offset: offset, 750 | bytes: bytes 751 | }); 752 | } 753 | 754 | alloc(a, b) { 755 | let size; 756 | let bytes; 757 | if ((Array.isArray(a) || ArrayBuffer.isView(a)) && (typeof(b) === "undefined")) { 758 | size = a.length; 759 | bytes = a; 760 | } else { 761 | size = a; 762 | bytes = b; 763 | } 764 | size = (((size-1)>>3) +1)<<3; // Align to 64 bits. 765 | const p = this.free; 766 | this.free += size; 767 | if (bytes) { 768 | this.addData(p, bytes); 769 | } 770 | return p; 771 | } 772 | 773 | allocString(s) { 774 | const encoder = new globalThis.TextEncoder(); 775 | const uint8array = encoder.encode(s); 776 | return this.alloc([...uint8array, 0]); 777 | } 778 | 779 | _setSignatures() { 780 | this.signatures = []; 781 | const signatureIdxByName = {}; 782 | if (this.functionsTable.length>0) { 783 | const signature = this.functions[this.functionsTable[0]].getSignature(); 784 | const signatureName = "s_"+toHexString(signature); 785 | signatureIdxByName[signatureName] = 0; 786 | this.signatures.push(signature); 787 | } 788 | for (let i=0; i. 954 | */ 955 | 956 | class CodeBuilderWat { 957 | constructor(func) { 958 | this.func = func; 959 | this.functionName = func.functionName; 960 | this.module = func.module; 961 | } 962 | 963 | setLocal(localName, valCode) { 964 | const idx = this.func.localIdxByName[localName]; 965 | if (idx === undefined) 966 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 967 | return [valCode, `set_local $${localName}`]; 968 | } 969 | 970 | teeLocal(localName, valCode) { 971 | const idx = this.func.localIdxByName[localName]; 972 | if (idx === undefined) 973 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 974 | return [valCode, `tee_local $${localName}`]; 975 | } 976 | 977 | getLocal(localName) { 978 | const idx = this.func.localIdxByName[localName]; 979 | if (idx === undefined) 980 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 981 | return `get_local $${localName}`; 982 | } 983 | 984 | genLoad(inst, def_align, idxCode, _offset, _align) { 985 | let S = inst; 986 | const offset = _offset || 0; 987 | if (offset>0) S += ` offset=${offset}`; 988 | const align = (_align === undefined) ? def_align : _align; // 8 bits alignment by default 989 | if (align!=def_align) S += ` align=${1 << align}`; 990 | return [idxCode, S]; 991 | } 992 | 993 | 994 | genStore(inst, def_align, idxCode, _offset, _align, _codeVal) { 995 | let offset, align, codeVal; 996 | if (typeof _align === "undefined") { 997 | offset = 0; 998 | align = def_align; 999 | codeVal = _offset; 1000 | } else if (typeof _codeVal === "undefined") { 1001 | offset = _offset; 1002 | align = def_align; 1003 | codeVal = _align; 1004 | } else { 1005 | offset = _offset; 1006 | align = _align; 1007 | codeVal = _codeVal; 1008 | } 1009 | let S = inst; 1010 | if (offset>0) S += ` offset=${offset}`; 1011 | if (align!=def_align) S += ` align=${1 << align}`; 1012 | return [idxCode, codeVal, S]; 1013 | } 1014 | 1015 | i64_load8_s(idxCode, _offset, _align) { 1016 | return this.genLoad("i64.load8_s", 0, idxCode, _offset, _align); 1017 | } 1018 | 1019 | i64_load8_u(idxCode, _offset, _align) { 1020 | return this.genLoad("i64.load8_u", 0, idxCode, _offset, _align); 1021 | } 1022 | 1023 | i64_load16_s(idxCode, _offset, _align) { 1024 | return this.genLoad("i64.load16_s", 1,idxCode, _offset, _align); 1025 | } 1026 | 1027 | i64_load16_u(idxCode, _offset, _align) { 1028 | return this.genLoad("i64.load16_u", 1, idxCode, _offset, _align); 1029 | } 1030 | 1031 | i64_load32_s(idxCode, _offset, _align) { 1032 | return this.genLoad("i64.load32_s", 2, idxCode, _offset, _align); 1033 | } 1034 | 1035 | i64_load32_u(idxCode, _offset, _align) { 1036 | return this.genLoad("i64.load32_u", 2, idxCode, _offset, _align); 1037 | } 1038 | 1039 | i64_load(idxCode, _offset, _align) { 1040 | return this.genLoad("i64.load", 3, idxCode, _offset, _align); 1041 | } 1042 | 1043 | 1044 | i64_store(idxCode, _offset, _align, _codeVal) { 1045 | return this.genStore("i64.store", 3, idxCode, _offset, _align, _codeVal); 1046 | } 1047 | 1048 | i64_store32(idxCode, _offset, _align, _codeVal) { 1049 | return this.genStore("i64.store32", 2, idxCode, _offset, _align, _codeVal); 1050 | } 1051 | 1052 | i64_store16(idxCode, _offset, _align, _codeVal) { 1053 | return this.genStore("i64.store16", 1, idxCode, _offset, _align, _codeVal); 1054 | } 1055 | 1056 | i64_store8(idxCode, _offset, _align, _codeVal) { 1057 | return this.genStore("i64.store8", 0, idxCode, _offset, _align, _codeVal); 1058 | } 1059 | 1060 | i32_load8_s(idxCode, _offset, _align) { 1061 | return this.genLoad("i32.load8_s", 0, idxCode, _offset, _align); 1062 | } 1063 | 1064 | i32_load8_u(idxCode, _offset, _align) { 1065 | return this.genLoad("i32.load8_u", 0, idxCode, _offset, _align); 1066 | } 1067 | 1068 | i32_load16_s(idxCode, _offset, _align) { 1069 | return this.genLoad("i32.load16_s", 1, idxCode, _offset, _align); 1070 | } 1071 | 1072 | i32_load16_u(idxCode, _offset, _align) { 1073 | return this.genLoad("i32.load16_u", 1, idxCode, _offset, _align); 1074 | } 1075 | 1076 | i32_load(idxCode, _offset, _align) { 1077 | return this.genLoad("i32.load", 2, idxCode, _offset, _align); 1078 | } 1079 | 1080 | i32_store(idxCode, _offset, _align, _codeVal) { 1081 | return this.genStore("i32.store", 2, idxCode, _offset, _align, _codeVal); 1082 | } 1083 | 1084 | i32_store16(idxCode, _offset, _align, _codeVal) { 1085 | return this.genStore("i32.store16", 1, idxCode, _offset, _align, _codeVal); 1086 | } 1087 | 1088 | i32_store8(idxCode, _offset, _align, _codeVal) { 1089 | return this.genStore("i32.store8", 0, idxCode, _offset, _align, _codeVal); 1090 | } 1091 | 1092 | call(fnName, ...args) { 1093 | const idx = this.module.functionIdxByName[fnName]; 1094 | if (idx === undefined) 1095 | throw new Error(`Function not defined: Function: ${fnName}`); 1096 | return [args, `call $${fnName}`]; 1097 | } 1098 | 1099 | call_indirect(fnIdx, ...args) { 1100 | return [args, fnIdx, "call_indirect (type 0)"]; 1101 | } 1102 | 1103 | if(condCode, thenCode, elseCode) { 1104 | if (elseCode) { 1105 | return [condCode, "if", ident(thenCode), "else", ident(elseCode), "end"]; 1106 | } else { 1107 | return [condCode, "if", ident(thenCode), "end"]; 1108 | } 1109 | } 1110 | 1111 | block(bCode) { return ["block", ident(bCode), "end"]; } 1112 | loop(...args) { return ["loop", ident(args), "end"]; } 1113 | br_if(relPath, condCode) { return [condCode, `br_if ${relPath}`]; } 1114 | br(relPath) { return `br ${relPath}`; } 1115 | ret(rCode) { return [rCode, "return"]; } 1116 | drop(dCode) { return [dCode, "drop"]; } 1117 | 1118 | i64_const(num) { return `i64.const ${num}`; } 1119 | i32_const(num) { return `i32.const ${num}`; } 1120 | 1121 | i64_eqz(opcode) { return [opcode, "i64.eqz"]; } 1122 | i64_eq(op1code, op2code) { return [op1code, op2code, "i64.eq"]; } 1123 | i64_ne(op1code, op2code) { return [op1code, op2code, "i64.ne"]; } 1124 | i64_lt_s(op1code, op2code) { return [op1code, op2code, "i64.lt_s"]; } 1125 | i64_lt_u(op1code, op2code) { return [op1code, op2code, "i64.lt_u"]; } 1126 | i64_gt_s(op1code, op2code) { return [op1code, op2code, "i64.gt_s"]; } 1127 | i64_gt_u(op1code, op2code) { return [op1code, op2code, "i64.gt_u"]; } 1128 | i64_le_s(op1code, op2code) { return [op1code, op2code, "i64.le_s"]; } 1129 | i64_le_u(op1code, op2code) { return [op1code, op2code, "i64.le_u"]; } 1130 | i64_ge_s(op1code, op2code) { return [op1code, op2code, "i64.ge_s"]; } 1131 | i64_ge_u(op1code, op2code) { return [op1code, op2code, "i64.ge_u"]; } 1132 | i64_add(op1code, op2code) { return [op1code, op2code, "i64.add"]; } 1133 | i64_sub(op1code, op2code) { return [op1code, op2code, "i64.sub"]; } 1134 | i64_mul(op1code, op2code) { return [op1code, op2code, "i64.mul"]; } 1135 | i64_div_s(op1code, op2code) { return [op1code, op2code, "i64.div_s"]; } 1136 | i64_div_u(op1code, op2code) { return [op1code, op2code, "i64.div_u"]; } 1137 | i64_rem_s(op1code, op2code) { return [op1code, op2code, "i64.rem_s"]; } 1138 | i64_rem_u(op1code, op2code) { return [op1code, op2code, "i64.rem_u"]; } 1139 | i64_and(op1code, op2code) { return [op1code, op2code, "i64.and"]; } 1140 | i64_or(op1code, op2code) { return [op1code, op2code, "i64.or"]; } 1141 | i64_xor(op1code, op2code) { return [op1code, op2code, "i64.xor"]; } 1142 | i64_shl(op1code, op2code) { return [op1code, op2code, "i64.shl"]; } 1143 | i64_shr_s(op1code, op2code) { return [op1code, op2code, "i64.shr_s"]; } 1144 | i64_shr_u(op1code, op2code) { return [op1code, op2code, "i64.shr_u"]; } 1145 | i64_extend_i32_s(op1code) { return [op1code, "i64.extend_s/i32"]; } 1146 | i64_extend_i32_u(op1code) { return [op1code, "i64.extend_u/i32"]; } 1147 | 1148 | 1149 | i32_eqz(op1code) { return [op1code, "i32.eqz"]; } 1150 | i32_eq(op1code, op2code) { return [op1code, op2code, "i32.eq"]; } 1151 | i32_ne(op1code, op2code) { return [op1code, op2code, "i32.ne"]; } 1152 | i32_lt_s(op1code, op2code) { return [op1code, op2code, "i32.lt_s"]; } 1153 | i32_lt_u(op1code, op2code) { return [op1code, op2code, "i32.lt_u"]; } 1154 | i32_gt_s(op1code, op2code) { return [op1code, op2code, "i32.gt_s"]; } 1155 | i32_gt_u(op1code, op2code) { return [op1code, op2code, "i32.gt_u"]; } 1156 | i32_le_s(op1code, op2code) { return [op1code, op2code, "i32.le_s"]; } 1157 | i32_le_u(op1code, op2code) { return [op1code, op2code, "i32.le_u"]; } 1158 | i32_ge_s(op1code, op2code) { return [op1code, op2code, "i32.ge_s"]; } 1159 | i32_ge_u(op1code, op2code) { return [op1code, op2code, "i32.ge_u"]; } 1160 | i32_add(op1code, op2code) { return [op1code, op2code, "i32.add"]; } 1161 | i32_sub(op1code, op2code) { return [op1code, op2code, "i32.sub"]; } 1162 | i32_mul(op1code, op2code) { return [op1code, op2code, "i32.mul"]; } 1163 | i32_div_s(op1code, op2code) { return [op1code, op2code, "i32.div_s"]; } 1164 | i32_div_u(op1code, op2code) { return [op1code, op2code, "i32.div_u"]; } 1165 | i32_rem_s(op1code, op2code) { return [op1code, op2code, "i32.rem_s"]; } 1166 | i32_rem_u(op1code, op2code) { return [op1code, op2code, "i32.rem_u"]; } 1167 | i32_and(op1code, op2code) { return [op1code, op2code, "i32.and"]; } 1168 | i32_or(op1code, op2code) { return [op1code, op2code, "i32.or"]; } 1169 | i32_xor(op1code, op2code) { return [op1code, op2code, "i32.xor"]; } 1170 | i32_shl(op1code, op2code) { return [op1code, op2code, "i32.shl"]; } 1171 | i32_shr_s(op1code, op2code) { return [op1code, op2code, "i32.shr_s"]; } 1172 | i32_shr_u(op1code, op2code) { return [op1code, op2code, "i32.shr_u"]; } 1173 | i32_rotl(op1code, op2code) { return [op1code, op2code, "i32.rotl"]; } 1174 | i32_rotr(op1code, op2code) { return [op1code, op2code, "i32.rotr"]; } 1175 | i32_wrap_i64(op1code) { return [op1code, "i32.wrap/i64"]; } 1176 | 1177 | ureachable() { return "unreachable"; } 1178 | 1179 | current_memory() { return "current_memory"; } 1180 | 1181 | comment(c) { return ";; " + c; } 1182 | 1183 | } 1184 | 1185 | /* 1186 | Copyright 2019 0KIMS association. 1187 | 1188 | This file is part of wasmbuilder 1189 | 1190 | wasmbuilder is a free software: you can redistribute it and/or modify it 1191 | under the terms of the GNU General Public License as published by 1192 | the Free Software Foundation, either version 3 of the License, or 1193 | (at your option) any later version. 1194 | 1195 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 1196 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 1197 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 1198 | License for more details. 1199 | 1200 | You should have received a copy of the GNU General Public License 1201 | along with wasmbuilder. If not, see . 1202 | */ 1203 | 1204 | class FunctionBuilderWat { 1205 | 1206 | constructor (module, fnName, fnType, moduleName, fieldName) { 1207 | if (fnType == "import") { 1208 | this.fnType = "import"; 1209 | this.moduleName = moduleName; 1210 | this.fieldName = fieldName; 1211 | } else if (fnType == "internal") { 1212 | this.fnType = "internal"; 1213 | this.comment = moduleName; 1214 | } else { 1215 | throw new Error("Invalid function fnType: " + fnType); 1216 | } 1217 | this.module = module; 1218 | this.fnName = fnName; 1219 | this.params = []; 1220 | this.locals = []; 1221 | this.localIdxByName = {}; 1222 | this.code = []; 1223 | this.returnType = null; 1224 | this.nextLocal =0; 1225 | } 1226 | 1227 | addParam(paramName, paramType) { 1228 | if (this.localIdxByName[paramName]) 1229 | throw new Error(`param already exists. Function: ${this.fnName}, Param: ${paramName} `); 1230 | const idx = this.nextLocal++; 1231 | this.localIdxByName[paramName] = idx; 1232 | this.params.push({ 1233 | type: paramType, 1234 | name: paramName 1235 | }); 1236 | } 1237 | 1238 | addLocal(localName, localType, _length) { 1239 | if ((typeof _length != "undefined") && (_length != 1)) { 1240 | throw new Error("Locals greater than 1 not implemented"); 1241 | } 1242 | if (this.localIdxByName[localName]) 1243 | throw new Error(`local already exists. Function: ${this.fnName}, Param: ${localName} `); 1244 | const idx = this.nextLocal++; 1245 | this.localIdxByName[localName] = idx; 1246 | this.locals.push({ 1247 | type: localType, 1248 | name: localName, 1249 | }); 1250 | } 1251 | 1252 | setReturnType(returnType) { 1253 | if (this.returnType) 1254 | throw new Error(`returnType already defined. Function: ${this.fnName}`); 1255 | this.returnType = returnType; 1256 | } 1257 | 1258 | getSignature() { 1259 | let p = ""; 1260 | for (let i=0; i. 1342 | */ 1343 | 1344 | class ModuleBuilderWat { 1345 | 1346 | constructor() { 1347 | this.functions = []; 1348 | this.functionIdxByName = {}; 1349 | this.nImportFunctions = 0; 1350 | this.nInternalFunctions =0; 1351 | this.memory = { 1352 | pagesSize: 1, 1353 | moduleName: "env", 1354 | fieldName: "memory" 1355 | }; 1356 | this.free = 8; 1357 | this.datas = []; 1358 | this.modules = {}; 1359 | this.exports = []; 1360 | this.functionsTable = []; 1361 | } 1362 | 1363 | build() { 1364 | const src = []; 1365 | this._setSignatures(); 1366 | src.push(this._buildType()); 1367 | src.push(this._buildImport()); 1368 | if (this.functionsTable.length>0) { 1369 | src.push(this._buildFunctionsTable()); 1370 | } 1371 | if (this.exports.length > 0) { 1372 | src.push(this._buildExports()); 1373 | } 1374 | if (this.functionsTable.length>0) { 1375 | src.push(this._buildElements()); 1376 | } 1377 | if (this.nInternalFunctions>0) { 1378 | src.push(this._buildFunctions()); 1379 | } 1380 | src.push(this._buildData()); 1381 | return [ 1382 | "(module", 1383 | ident(src), 1384 | ")" 1385 | ]; 1386 | } 1387 | 1388 | addFunction(fnName, comment) { 1389 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 1390 | throw new Error(`Function already defined: ${fnName}`); 1391 | 1392 | const idx = this.functions.length; 1393 | this.functionIdxByName[fnName] = idx; 1394 | 1395 | this.functions.push(new FunctionBuilderWat(this, fnName, "internal", comment)); 1396 | 1397 | this.nInternalFunctions++; 1398 | return this.functions[idx]; 1399 | } 1400 | 1401 | addIimportFunction(fnName, moduleName, _fieldName) { 1402 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 1403 | throw new Error(`Function already defined: ${fnName}`); 1404 | 1405 | if ( (this.functions.length>0) 1406 | &&(this.functions[this.functions.length-1].type == "internal")) 1407 | throw new Error(`Import functions must be declared before internal: ${fnName}`); 1408 | 1409 | let fieldName = _fieldName || fnName; 1410 | 1411 | const idx = this.functions.length; 1412 | this.functionIdxByName[fnName] = idx; 1413 | 1414 | this.functions.push(new FunctionBuilderWat(this, fnName, "import", moduleName, fieldName)); 1415 | 1416 | this.nImportFunctions ++; 1417 | return this.functions[idx]; 1418 | } 1419 | 1420 | setMemory(pagesSize, moduleName, fieldName) { 1421 | this.memory = { 1422 | pagesSize: pagesSize, 1423 | moduleName: moduleName || "env", 1424 | fieldName: fieldName || "memory" 1425 | }; 1426 | } 1427 | 1428 | exportFunction(fnName, _exportName) { 1429 | const exportName = _exportName || fnName; 1430 | if (typeof(this.functionIdxByName[fnName]) === "undefined") 1431 | throw new Error(`Function not defined: ${fnName}`); 1432 | const idx = this.functionIdxByName[fnName]; 1433 | if (exportName != fnName) { 1434 | this.functionIdxByName[exportName] = idx; 1435 | } 1436 | this.exports.push({ 1437 | exportName: exportName, 1438 | idx: idx 1439 | }); 1440 | } 1441 | 1442 | addFunctionToTable(fnName) { 1443 | const idx = this.functionIdxByName[fnName]; 1444 | this.functionsTable.push(idx); 1445 | } 1446 | 1447 | addData(offset, bytes) { 1448 | this.datas.push({ 1449 | offset: offset, 1450 | bytes: bytes 1451 | }); 1452 | } 1453 | 1454 | alloc(a, b) { 1455 | let size; 1456 | let bytes; 1457 | if ((Array.isArray(a) || ArrayBuffer.isView(a)) && (typeof(b) === "undefined")) { 1458 | size = a.length; 1459 | bytes = a; 1460 | } else { 1461 | size = a; 1462 | bytes = b; 1463 | } 1464 | size = (((size-1)>>3) +1)<<3; // Align to 64 bits. 1465 | const p = this.free; 1466 | this.free += size; 1467 | if (bytes) { 1468 | this.addData(p, bytes); 1469 | } 1470 | return p; 1471 | } 1472 | 1473 | allocString(s) { 1474 | const encoder = new TextEncoder(); 1475 | const uint8array = encoder.encode(s); 1476 | return this.alloc([...uint8array, 0]); 1477 | } 1478 | 1479 | _setSignatures() { 1480 | this.signatures = []; 1481 | const signatureIdxByName = {}; 1482 | if (this.functionsTable.length>0) { 1483 | const signature = this.functions[this.functionsTable[0]].getSignature(); 1484 | const signatureName = this.functions[this.functionsTable[0]].getSignatureName(); 1485 | signatureIdxByName[signatureName] = 0; 1486 | this.signatures.push(signature); 1487 | } 1488 | for (let i=0; i126 || b[i] == 34 || b[i]==92) { 1557 | let h=b[i].toString(16); 1558 | while (h.length<2) h = "0"+h; 1559 | S += "\\" + h; 1560 | } else { 1561 | S += String.fromCharCode(b[i]); 1562 | } 1563 | } 1564 | S += "\""; 1565 | return S; 1566 | } 1567 | } 1568 | 1569 | } 1570 | 1571 | /* 1572 | Copyright 2019 0KIMS association. 1573 | 1574 | This file is part of websnark (Web Assembly zkSnark Prover). 1575 | 1576 | websnark is a free software: you can redistribute it and/or modify it 1577 | under the terms of the GNU General Public License as published by 1578 | the Free Software Foundation, either version 3 of the License, or 1579 | (at your option) any later version. 1580 | 1581 | websnark is distributed in the hope that it will be useful, but WITHOUT 1582 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 1583 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 1584 | License for more details. 1585 | 1586 | You should have received a copy of the GNU General Public License 1587 | along with websnark. If not, see . 1588 | */ 1589 | 1590 | async function buildProtoboard(builder, defBytes, bitsPerBytes) { 1591 | const protoboard = new Protoboard(); 1592 | 1593 | protoboard.defBytes = defBytes; 1594 | protoboard.bitsPerBytes = bitsPerBytes || 32; 1595 | 1596 | protoboard.memory = new WebAssembly.Memory({initial:20000}); 1597 | protoboard.i32 = new Uint32Array(protoboard.memory.buffer); 1598 | protoboard.i8 = new Uint8Array(protoboard.memory.buffer); 1599 | 1600 | const moduleBuilder = new ModuleBuilder(); 1601 | 1602 | const fLog32 = moduleBuilder.addIimportFunction("debug_log32", "debug", "log32"); 1603 | fLog32.addParam("x", "i32"); 1604 | const fLog64 = moduleBuilder.addIimportFunction("debug_log64", "debug", "log64"); 1605 | fLog64.addParam("x", "i32"); 1606 | fLog64.addParam("y", "i32"); 1607 | 1608 | buildLog32(moduleBuilder); 1609 | buildLog64(moduleBuilder); 1610 | 1611 | builder(moduleBuilder, protoboard); 1612 | 1613 | 1614 | const code = moduleBuilder.build(); 1615 | 1616 | const wasmModule = await WebAssembly.compile(code); 1617 | 1618 | protoboard.log = console.log; 1619 | 1620 | protoboard.instance = await WebAssembly.instantiate(wasmModule, { 1621 | env: { 1622 | "memory": protoboard.memory 1623 | }, 1624 | debug: { 1625 | log32: function (c1) { 1626 | if (c1<0) c1 = 0x100000000+c1; 1627 | let s=c1.toString(16); 1628 | while (s.length<8) s = "0"+s; 1629 | protoboard.log(s + ": " + c1.toString()); 1630 | }, 1631 | log64: function (c1, c2) { 1632 | if (c1<0) c1 = 0x100000000+c1; 1633 | if (c2<0) c2 = 0x100000000+c2; 1634 | const n = BigInt(c1) + (BigInt(c2) << 32n); 1635 | let s=n.toString(16); 1636 | while (s.length<16) s = "0"+s; 1637 | protoboard.log(s + ": " + n.toString()); 1638 | } 1639 | } 1640 | }); 1641 | 1642 | Object.assign(protoboard, protoboard.instance.exports); 1643 | Object.assign(protoboard, moduleBuilder.modules); 1644 | 1645 | return protoboard; 1646 | 1647 | function buildLog32(module) { 1648 | 1649 | const f = module.addFunction("log32"); 1650 | f.addParam("x", "i32"); 1651 | 1652 | const c = f.getCodeBuilder(); 1653 | f.addCode(c.call("debug_log32", c.getLocal("x"))); 1654 | } 1655 | 1656 | function buildLog64(module) { 1657 | 1658 | const f = module.addFunction("log64"); 1659 | f.addParam("x", "i64"); 1660 | 1661 | const c = f.getCodeBuilder(); 1662 | f.addCode(c.call( 1663 | "debug_log64", 1664 | c.i32_wrap_i64(c.getLocal("x")), 1665 | c.i32_wrap_i64( 1666 | c.i64_shr_u( 1667 | c.getLocal("x"), 1668 | c.i64_const(32) 1669 | ) 1670 | ) 1671 | )); 1672 | } 1673 | 1674 | } 1675 | 1676 | class Protoboard { 1677 | 1678 | constructor() { 1679 | 1680 | } 1681 | 1682 | alloc(length) { 1683 | if (typeof length === "undefined") { 1684 | length = this.defBytes; 1685 | } 1686 | length = (((length-1)>>3) +1)<<3; // Align to 64 bits. 1687 | 1688 | const res = this.i32[0]; 1689 | this.i32[0] += length; 1690 | return res; 1691 | } 1692 | 1693 | set(pos, nums, nBytes) { 1694 | if (!Array.isArray(nums)) { 1695 | nums = [nums]; 1696 | } 1697 | if (typeof nBytes === "undefined") { 1698 | nBytes = this.defBytes; 1699 | } 1700 | 1701 | const words = Math.floor((nBytes -1)/4)+1; 1702 | let p = pos; 1703 | 1704 | const CHUNK = 1n << BigInt(this.bitsPerBytes); 1705 | 1706 | for (let i=0; i>2] = Number(remainder); 1712 | v = quotient; 1713 | p += 4; 1714 | } 1715 | if (v !== 0n) { 1716 | throw new Error("Expected v to be 0"); 1717 | } 1718 | } 1719 | 1720 | return pos; 1721 | } 1722 | 1723 | get(pos, nElements, nBytes) { 1724 | if (typeof nBytes == "undefined") { 1725 | if (typeof nElements == "undefined") { 1726 | nElements = 1; 1727 | nBytes = this.defBytes; 1728 | } else { 1729 | nElements = nBytes; 1730 | nBytes = this.defBytes; 1731 | } 1732 | } 1733 | 1734 | const words = Math.floor((nBytes -1)/4)+1; 1735 | 1736 | const CHUNK = 1n << BigInt(this.bitsPerBytes); 1737 | 1738 | 1739 | const nums = []; 1740 | for (let i=0; i=0; j--) { 1743 | acc = acc * CHUNK; 1744 | let v = this.i32[(pos>>2)+j]; 1745 | if (this.bitsPerBytes <32) { 1746 | if (v&0x80000000) v = v-0x100000000; 1747 | } 1748 | acc = acc + BigInt(v); 1749 | } 1750 | nums.push(acc); 1751 | pos += words*4; 1752 | } 1753 | 1754 | if (nums.length == 1) return nums[0]; 1755 | return nums; 1756 | } 1757 | } 1758 | 1759 | exports.ModuleBuilder = ModuleBuilder; 1760 | exports.ModuleBuilderWat = ModuleBuilderWat; 1761 | exports.buildProtoboard = buildProtoboard; 1762 | -------------------------------------------------------------------------------- /main.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 0KIMS association. 3 | 4 | This file is part of wasmbuilder 5 | 6 | wasmbuilder is a free software: you can redistribute it and/or modify it 7 | under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 | License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with wasmbuilder. If not, see . 18 | */ 19 | 20 | export { ModuleBuilder } from "./src/modulebuilder.js"; 21 | export { ModuleBuilderWat } from "./src/modulebuilder_wat.js"; 22 | export { buildProtoboard } from "./src/protoboard.js"; 23 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "wasmbuilder", 3 | "type": "module", 4 | "version": "0.0.16", 5 | "description": "Tool to build wasm programs by hand.", 6 | "main": "./build/main.cjs", 7 | "module": "./main.js", 8 | "exports": { 9 | "import": "./main.js", 10 | "require": "./build/main.cjs" 11 | }, 12 | "scripts": { 13 | "lint": "eslint .", 14 | "pretest": "npm run lint", 15 | "test": "mocha", 16 | "build": "rollup -c rollup.cjs.config.js" 17 | }, 18 | "repository": { 19 | "type": "git", 20 | "url": "https://github.com/iden3/wasmbuilder" 21 | }, 22 | "keywords": [ 23 | "wasm", 24 | "script", 25 | "generator" 26 | ], 27 | "author": "Jordi Baylina", 28 | "license": "GPL-3.0", 29 | "dependencies": {}, 30 | "devDependencies": { 31 | "eslint": "^8.17.0", 32 | "eslint-plugin-mocha": "^10.0.5", 33 | "mocha": "^10.0.0", 34 | "rollup": "^2.38.5" 35 | } 36 | } 37 | -------------------------------------------------------------------------------- /rollup.cjs.config.js: -------------------------------------------------------------------------------- 1 | import fs from "fs"; 2 | import { builtinModules as builtin } from "module"; 3 | 4 | const pkg = JSON.parse(fs.readFileSync("./package.json")); 5 | 6 | export default { 7 | input: "./main.js", 8 | output: { 9 | file: "build/main.cjs", 10 | format: "cjs", 11 | }, 12 | external: [ 13 | ...Object.keys(pkg.dependencies), 14 | ...builtin, 15 | ] 16 | }; 17 | -------------------------------------------------------------------------------- /src/codebuilder.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 0KIMS association. 3 | 4 | This file is part of wasmbuilder 5 | 6 | wasmbuilder is a free software: you can redistribute it and/or modify it 7 | under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 | License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with wasmbuilder. If not, see . 18 | */ 19 | 20 | import * as utils from "./utils.js"; 21 | 22 | export class CodeBuilder { 23 | constructor(func) { 24 | this.func = func; 25 | this.functionName = func.functionName; 26 | this.module = func.module; 27 | } 28 | 29 | setLocal(localName, valCode) { 30 | const idx = this.func.localIdxByName[localName]; 31 | if (idx === undefined) 32 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 33 | return [...valCode, 0x21, ...utils.varuint32( idx )]; 34 | } 35 | 36 | teeLocal(localName, valCode) { 37 | const idx = this.func.localIdxByName[localName]; 38 | if (idx === undefined) 39 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 40 | return [...valCode, 0x22, ...utils.varuint32( idx )]; 41 | } 42 | 43 | getLocal(localName) { 44 | const idx = this.func.localIdxByName[localName]; 45 | if (idx === undefined) 46 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 47 | return [0x20, ...utils.varuint32( idx )]; 48 | } 49 | 50 | i64_load8_s(idxCode, _offset, _align) { 51 | const offset = _offset || 0; 52 | const align = (_align === undefined) ? 0 : _align; // 8 bits alignment by default 53 | return [...idxCode, 0x30, align, ...utils.varuint32(offset)]; 54 | } 55 | 56 | i64_load8_u(idxCode, _offset, _align) { 57 | const offset = _offset || 0; 58 | const align = (_align === undefined) ? 0 : _align; // 8 bits alignment by default 59 | return [...idxCode, 0x31, align, ...utils.varuint32(offset)]; 60 | } 61 | 62 | i64_load16_s(idxCode, _offset, _align) { 63 | const offset = _offset || 0; 64 | const align = (_align === undefined) ? 1 : _align; // 16 bits alignment by default 65 | return [...idxCode, 0x32, align, ...utils.varuint32(offset)]; 66 | } 67 | 68 | i64_load16_u(idxCode, _offset, _align) { 69 | const offset = _offset || 0; 70 | const align = (_align === undefined) ? 1 : _align; // 16 bits alignment by default 71 | return [...idxCode, 0x33, align, ...utils.varuint32(offset)]; 72 | } 73 | 74 | i64_load32_s(idxCode, _offset, _align) { 75 | const offset = _offset || 0; 76 | const align = (_align === undefined) ? 2 : _align; // 32 bits alignment by default 77 | return [...idxCode, 0x34, align, ...utils.varuint32(offset)]; 78 | } 79 | 80 | i64_load32_u(idxCode, _offset, _align) { 81 | const offset = _offset || 0; 82 | const align = (_align === undefined) ? 2 : _align; // 32 bits alignment by default 83 | return [...idxCode, 0x35, align, ...utils.varuint32(offset)]; 84 | } 85 | 86 | i64_load(idxCode, _offset, _align) { 87 | const offset = _offset || 0; 88 | const align = (_align === undefined) ? 3 : _align; // 64 bits alignment by default 89 | return [...idxCode, 0x29, align, ...utils.varuint32(offset)]; 90 | } 91 | 92 | 93 | i64_store(idxCode, _offset, _align, _codeVal) { 94 | let offset, align, codeVal; 95 | if (Array.isArray(_offset)) { 96 | offset = 0; 97 | align = 3; 98 | codeVal = _offset; 99 | } else if (Array.isArray(_align)) { 100 | offset = _offset; 101 | align = 3; 102 | codeVal = _align; 103 | } else if (Array.isArray(_codeVal)) { 104 | offset = _offset; 105 | align = _align; 106 | codeVal = _codeVal; 107 | } 108 | return [...idxCode, ...codeVal, 0x37, align, ...utils.varuint32(offset)]; 109 | } 110 | 111 | i64_store32(idxCode, _offset, _align, _codeVal) { 112 | let offset, align, codeVal; 113 | if (Array.isArray(_offset)) { 114 | offset = 0; 115 | align = 2; 116 | codeVal = _offset; 117 | } else if (Array.isArray(_align)) { 118 | offset = _offset; 119 | align = 2; 120 | codeVal = _align; 121 | } else if (Array.isArray(_codeVal)) { 122 | offset = _offset; 123 | align = _align; 124 | codeVal = _codeVal; 125 | } 126 | return [...idxCode, ...codeVal, 0x3e, align, ...utils.varuint32(offset)]; 127 | } 128 | 129 | 130 | i64_store16(idxCode, _offset, _align, _codeVal) { 131 | let offset, align, codeVal; 132 | if (Array.isArray(_offset)) { 133 | offset = 0; 134 | align = 1; 135 | codeVal = _offset; 136 | } else if (Array.isArray(_align)) { 137 | offset = _offset; 138 | align = 1; 139 | codeVal = _align; 140 | } else if (Array.isArray(_codeVal)) { 141 | offset = _offset; 142 | align = _align; 143 | codeVal = _codeVal; 144 | } 145 | return [...idxCode, ...codeVal, 0x3d, align, ...utils.varuint32(offset)]; 146 | } 147 | 148 | 149 | i64_store8(idxCode, _offset, _align, _codeVal) { 150 | let offset, align, codeVal; 151 | if (Array.isArray(_offset)) { 152 | offset = 0; 153 | align = 0; 154 | codeVal = _offset; 155 | } else if (Array.isArray(_align)) { 156 | offset = _offset; 157 | align = 0; 158 | codeVal = _align; 159 | } else if (Array.isArray(_codeVal)) { 160 | offset = _offset; 161 | align = _align; 162 | codeVal = _codeVal; 163 | } 164 | return [...idxCode, ...codeVal, 0x3c, align, ...utils.varuint32(offset)]; 165 | } 166 | 167 | i32_load8_s(idxCode, _offset, _align) { 168 | const offset = _offset || 0; 169 | const align = (_align === undefined) ? 0 : _align; // 32 bits alignment by default 170 | return [...idxCode, 0x2c, align, ...utils.varuint32(offset)]; 171 | } 172 | 173 | i32_load8_u(idxCode, _offset, _align) { 174 | const offset = _offset || 0; 175 | const align = (_align === undefined) ? 0 : _align; // 32 bits alignment by default 176 | return [...idxCode, 0x2d, align, ...utils.varuint32(offset)]; 177 | } 178 | 179 | i32_load16_s(idxCode, _offset, _align) { 180 | const offset = _offset || 0; 181 | const align = (_align === undefined) ? 1 : _align; // 32 bits alignment by default 182 | return [...idxCode, 0x2e, align, ...utils.varuint32(offset)]; 183 | } 184 | 185 | i32_load16_u(idxCode, _offset, _align) { 186 | const offset = _offset || 0; 187 | const align = (_align === undefined) ? 1 : _align; // 32 bits alignment by default 188 | return [...idxCode, 0x2f, align, ...utils.varuint32(offset)]; 189 | } 190 | 191 | i32_load(idxCode, _offset, _align) { 192 | const offset = _offset || 0; 193 | const align = (_align === undefined) ? 2 : _align; // 32 bits alignment by default 194 | return [...idxCode, 0x28, align, ...utils.varuint32(offset)]; 195 | } 196 | 197 | i32_store(idxCode, _offset, _align, _codeVal) { 198 | let offset, align, codeVal; 199 | if (Array.isArray(_offset)) { 200 | offset = 0; 201 | align = 2; 202 | codeVal = _offset; 203 | } else if (Array.isArray(_align)) { 204 | offset = _offset; 205 | align = 2; 206 | codeVal = _align; 207 | } else if (Array.isArray(_codeVal)) { 208 | offset = _offset; 209 | align = _align; 210 | codeVal = _codeVal; 211 | } 212 | return [...idxCode, ...codeVal, 0x36, align, ...utils.varuint32(offset)]; 213 | } 214 | 215 | 216 | i32_store16(idxCode, _offset, _align, _codeVal) { 217 | let offset, align, codeVal; 218 | if (Array.isArray(_offset)) { 219 | offset = 0; 220 | align = 1; 221 | codeVal = _offset; 222 | } else if (Array.isArray(_align)) { 223 | offset = _offset; 224 | align = 1; 225 | codeVal = _align; 226 | } else if (Array.isArray(_codeVal)) { 227 | offset = _offset; 228 | align = _align; 229 | codeVal = _codeVal; 230 | } 231 | return [...idxCode, ...codeVal, 0x3b, align, ...utils.varuint32(offset)]; 232 | } 233 | 234 | i32_store8(idxCode, _offset, _align, _codeVal) { 235 | let offset, align, codeVal; 236 | if (Array.isArray(_offset)) { 237 | offset = 0; 238 | align = 0; 239 | codeVal = _offset; 240 | } else if (Array.isArray(_align)) { 241 | offset = _offset; 242 | align = 0; 243 | codeVal = _align; 244 | } else if (Array.isArray(_codeVal)) { 245 | offset = _offset; 246 | align = _align; 247 | codeVal = _codeVal; 248 | } 249 | return [...idxCode, ...codeVal, 0x3a, align, ...utils.varuint32(offset)]; 250 | } 251 | 252 | call(fnName, ...args) { 253 | const idx = this.module.functionIdxByName[fnName]; 254 | if (idx === undefined) 255 | throw new Error(`Function not defined: Function: ${fnName}`); 256 | return [...[].concat(...args), 0x10, ...utils.varuint32(idx)]; 257 | } 258 | 259 | call_indirect(fnIdx, ...args) { 260 | return [...[].concat(...args), ...fnIdx, 0x11, 0, 0]; 261 | } 262 | 263 | if(condCode, thenCode, elseCode) { 264 | if (elseCode) { 265 | return [...condCode, 0x04, 0x40, ...thenCode, 0x05, ...elseCode, 0x0b]; 266 | } else { 267 | return [...condCode, 0x04, 0x40, ...thenCode, 0x0b]; 268 | } 269 | } 270 | 271 | block(bCode) { return [0x02, 0x40, ...bCode, 0x0b]; } 272 | loop(...args) { 273 | return [0x03, 0x40, ...[].concat(...[...args]), 0x0b]; 274 | } 275 | br_if(relPath, condCode) { return [...condCode, 0x0d, ...utils.varuint32(relPath)]; } 276 | br(relPath) { return [0x0c, ...utils.varuint32(relPath)]; } 277 | ret(rCode) { return [...rCode, 0x0f]; } 278 | drop(dCode) { return [...dCode, 0x1a]; } 279 | 280 | i64_const(num) { return [0x42, ...utils.varint64(num)]; } 281 | i32_const(num) { return [0x41, ...utils.varint32(num)]; } 282 | 283 | 284 | i64_eqz(opcode) { return [...opcode, 0x50]; } 285 | i64_eq(op1code, op2code) { return [...op1code, ...op2code, 0x51]; } 286 | i64_ne(op1code, op2code) { return [...op1code, ...op2code, 0x52]; } 287 | i64_lt_s(op1code, op2code) { return [...op1code, ...op2code, 0x53]; } 288 | i64_lt_u(op1code, op2code) { return [...op1code, ...op2code, 0x54]; } 289 | i64_gt_s(op1code, op2code) { return [...op1code, ...op2code, 0x55]; } 290 | i64_gt_u(op1code, op2code) { return [...op1code, ...op2code, 0x56]; } 291 | i64_le_s(op1code, op2code) { return [...op1code, ...op2code, 0x57]; } 292 | i64_le_u(op1code, op2code) { return [...op1code, ...op2code, 0x58]; } 293 | i64_ge_s(op1code, op2code) { return [...op1code, ...op2code, 0x59]; } 294 | i64_ge_u(op1code, op2code) { return [...op1code, ...op2code, 0x5a]; } 295 | i64_add(op1code, op2code) { return [...op1code, ...op2code, 0x7c]; } 296 | i64_sub(op1code, op2code) { return [...op1code, ...op2code, 0x7d]; } 297 | i64_mul(op1code, op2code) { return [...op1code, ...op2code, 0x7e]; } 298 | i64_div_s(op1code, op2code) { return [...op1code, ...op2code, 0x7f]; } 299 | i64_div_u(op1code, op2code) { return [...op1code, ...op2code, 0x80]; } 300 | i64_rem_s(op1code, op2code) { return [...op1code, ...op2code, 0x81]; } 301 | i64_rem_u(op1code, op2code) { return [...op1code, ...op2code, 0x82]; } 302 | i64_and(op1code, op2code) { return [...op1code, ...op2code, 0x83]; } 303 | i64_or(op1code, op2code) { return [...op1code, ...op2code, 0x84]; } 304 | i64_xor(op1code, op2code) { return [...op1code, ...op2code, 0x85]; } 305 | i64_shl(op1code, op2code) { return [...op1code, ...op2code, 0x86]; } 306 | i64_shr_s(op1code, op2code) { return [...op1code, ...op2code, 0x87]; } 307 | i64_shr_u(op1code, op2code) { return [...op1code, ...op2code, 0x88]; } 308 | i64_extend_i32_s(op1code) { return [...op1code, 0xac]; } 309 | i64_extend_i32_u(op1code) { return [...op1code, 0xad]; } 310 | i64_clz(op1code) { return [...op1code, 0x79]; } 311 | i64_ctz(op1code) { return [...op1code, 0x7a]; } 312 | 313 | i32_eqz(op1code) { return [...op1code, 0x45]; } 314 | i32_eq(op1code, op2code) { return [...op1code, ...op2code, 0x46]; } 315 | i32_ne(op1code, op2code) { return [...op1code, ...op2code, 0x47]; } 316 | i32_lt_s(op1code, op2code) { return [...op1code, ...op2code, 0x48]; } 317 | i32_lt_u(op1code, op2code) { return [...op1code, ...op2code, 0x49]; } 318 | i32_gt_s(op1code, op2code) { return [...op1code, ...op2code, 0x4a]; } 319 | i32_gt_u(op1code, op2code) { return [...op1code, ...op2code, 0x4b]; } 320 | i32_le_s(op1code, op2code) { return [...op1code, ...op2code, 0x4c]; } 321 | i32_le_u(op1code, op2code) { return [...op1code, ...op2code, 0x4d]; } 322 | i32_ge_s(op1code, op2code) { return [...op1code, ...op2code, 0x4e]; } 323 | i32_ge_u(op1code, op2code) { return [...op1code, ...op2code, 0x4f]; } 324 | i32_add(op1code, op2code) { return [...op1code, ...op2code, 0x6a]; } 325 | i32_sub(op1code, op2code) { return [...op1code, ...op2code, 0x6b]; } 326 | i32_mul(op1code, op2code) { return [...op1code, ...op2code, 0x6c]; } 327 | i32_div_s(op1code, op2code) { return [...op1code, ...op2code, 0x6d]; } 328 | i32_div_u(op1code, op2code) { return [...op1code, ...op2code, 0x6e]; } 329 | i32_rem_s(op1code, op2code) { return [...op1code, ...op2code, 0x6f]; } 330 | i32_rem_u(op1code, op2code) { return [...op1code, ...op2code, 0x70]; } 331 | i32_and(op1code, op2code) { return [...op1code, ...op2code, 0x71]; } 332 | i32_or(op1code, op2code) { return [...op1code, ...op2code, 0x72]; } 333 | i32_xor(op1code, op2code) { return [...op1code, ...op2code, 0x73]; } 334 | i32_shl(op1code, op2code) { return [...op1code, ...op2code, 0x74]; } 335 | i32_shr_s(op1code, op2code) { return [...op1code, ...op2code, 0x75]; } 336 | i32_shr_u(op1code, op2code) { return [...op1code, ...op2code, 0x76]; } 337 | i32_rotl(op1code, op2code) { return [...op1code, ...op2code, 0x77]; } 338 | i32_rotr(op1code, op2code) { return [...op1code, ...op2code, 0x78]; } 339 | i32_wrap_i64(op1code) { return [...op1code, 0xa7]; } 340 | i32_clz(op1code) { return [...op1code, 0x67]; } 341 | i32_ctz(op1code) { return [...op1code, 0x68]; } 342 | 343 | unreachable() { return [ 0x0 ]; } 344 | 345 | current_memory() { return [ 0x3f, 0]; } 346 | 347 | comment() { return []; } 348 | } 349 | -------------------------------------------------------------------------------- /src/codebuilder_wat.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 0KIMS association. 3 | 4 | This file is part of wasmbuilder 5 | 6 | wasmbuilder is a free software: you can redistribute it and/or modify it 7 | under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 | License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with wasmbuilder. If not, see . 18 | */ 19 | 20 | import * as utils from "./utils.js"; 21 | 22 | export class CodeBuilderWat { 23 | constructor(func) { 24 | this.func = func; 25 | this.functionName = func.functionName; 26 | this.module = func.module; 27 | } 28 | 29 | setLocal(localName, valCode) { 30 | const idx = this.func.localIdxByName[localName]; 31 | if (idx === undefined) 32 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 33 | return [valCode, `set_local $${localName}`]; 34 | } 35 | 36 | teeLocal(localName, valCode) { 37 | const idx = this.func.localIdxByName[localName]; 38 | if (idx === undefined) 39 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 40 | return [valCode, `tee_local $${localName}`]; 41 | } 42 | 43 | getLocal(localName) { 44 | const idx = this.func.localIdxByName[localName]; 45 | if (idx === undefined) 46 | throw new Error(`Local Variable not defined: Function: ${this.functionName} local: ${localName} `); 47 | return `get_local $${localName}`; 48 | } 49 | 50 | genLoad(inst, def_align, idxCode, _offset, _align) { 51 | let S = inst; 52 | const offset = _offset || 0; 53 | if (offset>0) S += ` offset=${offset}`; 54 | const align = (_align === undefined) ? def_align : _align; // 8 bits alignment by default 55 | if (align!=def_align) S += ` align=${1 << align}`; 56 | return [idxCode, S]; 57 | } 58 | 59 | 60 | genStore(inst, def_align, idxCode, _offset, _align, _codeVal) { 61 | let offset, align, codeVal; 62 | if (typeof _align === "undefined") { 63 | offset = 0; 64 | align = def_align; 65 | codeVal = _offset; 66 | } else if (typeof _codeVal === "undefined") { 67 | offset = _offset; 68 | align = def_align; 69 | codeVal = _align; 70 | } else { 71 | offset = _offset; 72 | align = _align; 73 | codeVal = _codeVal; 74 | } 75 | let S = inst; 76 | if (offset>0) S += ` offset=${offset}`; 77 | if (align!=def_align) S += ` align=${1 << align}`; 78 | return [idxCode, codeVal, S]; 79 | } 80 | 81 | i64_load8_s(idxCode, _offset, _align) { 82 | return this.genLoad("i64.load8_s", 0, idxCode, _offset, _align); 83 | } 84 | 85 | i64_load8_u(idxCode, _offset, _align) { 86 | return this.genLoad("i64.load8_u", 0, idxCode, _offset, _align); 87 | } 88 | 89 | i64_load16_s(idxCode, _offset, _align) { 90 | return this.genLoad("i64.load16_s", 1,idxCode, _offset, _align); 91 | } 92 | 93 | i64_load16_u(idxCode, _offset, _align) { 94 | return this.genLoad("i64.load16_u", 1, idxCode, _offset, _align); 95 | } 96 | 97 | i64_load32_s(idxCode, _offset, _align) { 98 | return this.genLoad("i64.load32_s", 2, idxCode, _offset, _align); 99 | } 100 | 101 | i64_load32_u(idxCode, _offset, _align) { 102 | return this.genLoad("i64.load32_u", 2, idxCode, _offset, _align); 103 | } 104 | 105 | i64_load(idxCode, _offset, _align) { 106 | return this.genLoad("i64.load", 3, idxCode, _offset, _align); 107 | } 108 | 109 | 110 | i64_store(idxCode, _offset, _align, _codeVal) { 111 | return this.genStore("i64.store", 3, idxCode, _offset, _align, _codeVal); 112 | } 113 | 114 | i64_store32(idxCode, _offset, _align, _codeVal) { 115 | return this.genStore("i64.store32", 2, idxCode, _offset, _align, _codeVal); 116 | } 117 | 118 | i64_store16(idxCode, _offset, _align, _codeVal) { 119 | return this.genStore("i64.store16", 1, idxCode, _offset, _align, _codeVal); 120 | } 121 | 122 | i64_store8(idxCode, _offset, _align, _codeVal) { 123 | return this.genStore("i64.store8", 0, idxCode, _offset, _align, _codeVal); 124 | } 125 | 126 | i32_load8_s(idxCode, _offset, _align) { 127 | return this.genLoad("i32.load8_s", 0, idxCode, _offset, _align); 128 | } 129 | 130 | i32_load8_u(idxCode, _offset, _align) { 131 | return this.genLoad("i32.load8_u", 0, idxCode, _offset, _align); 132 | } 133 | 134 | i32_load16_s(idxCode, _offset, _align) { 135 | return this.genLoad("i32.load16_s", 1, idxCode, _offset, _align); 136 | } 137 | 138 | i32_load16_u(idxCode, _offset, _align) { 139 | return this.genLoad("i32.load16_u", 1, idxCode, _offset, _align); 140 | } 141 | 142 | i32_load(idxCode, _offset, _align) { 143 | return this.genLoad("i32.load", 2, idxCode, _offset, _align); 144 | } 145 | 146 | i32_store(idxCode, _offset, _align, _codeVal) { 147 | return this.genStore("i32.store", 2, idxCode, _offset, _align, _codeVal); 148 | } 149 | 150 | i32_store16(idxCode, _offset, _align, _codeVal) { 151 | return this.genStore("i32.store16", 1, idxCode, _offset, _align, _codeVal); 152 | } 153 | 154 | i32_store8(idxCode, _offset, _align, _codeVal) { 155 | return this.genStore("i32.store8", 0, idxCode, _offset, _align, _codeVal); 156 | } 157 | 158 | call(fnName, ...args) { 159 | const idx = this.module.functionIdxByName[fnName]; 160 | if (idx === undefined) 161 | throw new Error(`Function not defined: Function: ${fnName}`); 162 | return [args, `call $${fnName}`]; 163 | } 164 | 165 | call_indirect(fnIdx, ...args) { 166 | return [args, fnIdx, "call_indirect (type 0)"]; 167 | } 168 | 169 | if(condCode, thenCode, elseCode) { 170 | if (elseCode) { 171 | return [condCode, "if", utils.ident(thenCode), "else", utils.ident(elseCode), "end"]; 172 | } else { 173 | return [condCode, "if", utils.ident(thenCode), "end"]; 174 | } 175 | } 176 | 177 | block(bCode) { return ["block", utils.ident(bCode), "end"]; } 178 | loop(...args) { return ["loop", utils.ident(args), "end"]; } 179 | br_if(relPath, condCode) { return [condCode, `br_if ${relPath}`]; } 180 | br(relPath) { return `br ${relPath}`; } 181 | ret(rCode) { return [rCode, "return"]; } 182 | drop(dCode) { return [dCode, "drop"]; } 183 | 184 | i64_const(num) { return `i64.const ${num}`; } 185 | i32_const(num) { return `i32.const ${num}`; } 186 | 187 | i64_eqz(opcode) { return [opcode, "i64.eqz"]; } 188 | i64_eq(op1code, op2code) { return [op1code, op2code, "i64.eq"]; } 189 | i64_ne(op1code, op2code) { return [op1code, op2code, "i64.ne"]; } 190 | i64_lt_s(op1code, op2code) { return [op1code, op2code, "i64.lt_s"]; } 191 | i64_lt_u(op1code, op2code) { return [op1code, op2code, "i64.lt_u"]; } 192 | i64_gt_s(op1code, op2code) { return [op1code, op2code, "i64.gt_s"]; } 193 | i64_gt_u(op1code, op2code) { return [op1code, op2code, "i64.gt_u"]; } 194 | i64_le_s(op1code, op2code) { return [op1code, op2code, "i64.le_s"]; } 195 | i64_le_u(op1code, op2code) { return [op1code, op2code, "i64.le_u"]; } 196 | i64_ge_s(op1code, op2code) { return [op1code, op2code, "i64.ge_s"]; } 197 | i64_ge_u(op1code, op2code) { return [op1code, op2code, "i64.ge_u"]; } 198 | i64_add(op1code, op2code) { return [op1code, op2code, "i64.add"]; } 199 | i64_sub(op1code, op2code) { return [op1code, op2code, "i64.sub"]; } 200 | i64_mul(op1code, op2code) { return [op1code, op2code, "i64.mul"]; } 201 | i64_div_s(op1code, op2code) { return [op1code, op2code, "i64.div_s"]; } 202 | i64_div_u(op1code, op2code) { return [op1code, op2code, "i64.div_u"]; } 203 | i64_rem_s(op1code, op2code) { return [op1code, op2code, "i64.rem_s"]; } 204 | i64_rem_u(op1code, op2code) { return [op1code, op2code, "i64.rem_u"]; } 205 | i64_and(op1code, op2code) { return [op1code, op2code, "i64.and"]; } 206 | i64_or(op1code, op2code) { return [op1code, op2code, "i64.or"]; } 207 | i64_xor(op1code, op2code) { return [op1code, op2code, "i64.xor"]; } 208 | i64_shl(op1code, op2code) { return [op1code, op2code, "i64.shl"]; } 209 | i64_shr_s(op1code, op2code) { return [op1code, op2code, "i64.shr_s"]; } 210 | i64_shr_u(op1code, op2code) { return [op1code, op2code, "i64.shr_u"]; } 211 | i64_extend_i32_s(op1code) { return [op1code, "i64.extend_s/i32"]; } 212 | i64_extend_i32_u(op1code) { return [op1code, "i64.extend_u/i32"]; } 213 | 214 | 215 | i32_eqz(op1code) { return [op1code, "i32.eqz"]; } 216 | i32_eq(op1code, op2code) { return [op1code, op2code, "i32.eq"]; } 217 | i32_ne(op1code, op2code) { return [op1code, op2code, "i32.ne"]; } 218 | i32_lt_s(op1code, op2code) { return [op1code, op2code, "i32.lt_s"]; } 219 | i32_lt_u(op1code, op2code) { return [op1code, op2code, "i32.lt_u"]; } 220 | i32_gt_s(op1code, op2code) { return [op1code, op2code, "i32.gt_s"]; } 221 | i32_gt_u(op1code, op2code) { return [op1code, op2code, "i32.gt_u"]; } 222 | i32_le_s(op1code, op2code) { return [op1code, op2code, "i32.le_s"]; } 223 | i32_le_u(op1code, op2code) { return [op1code, op2code, "i32.le_u"]; } 224 | i32_ge_s(op1code, op2code) { return [op1code, op2code, "i32.ge_s"]; } 225 | i32_ge_u(op1code, op2code) { return [op1code, op2code, "i32.ge_u"]; } 226 | i32_add(op1code, op2code) { return [op1code, op2code, "i32.add"]; } 227 | i32_sub(op1code, op2code) { return [op1code, op2code, "i32.sub"]; } 228 | i32_mul(op1code, op2code) { return [op1code, op2code, "i32.mul"]; } 229 | i32_div_s(op1code, op2code) { return [op1code, op2code, "i32.div_s"]; } 230 | i32_div_u(op1code, op2code) { return [op1code, op2code, "i32.div_u"]; } 231 | i32_rem_s(op1code, op2code) { return [op1code, op2code, "i32.rem_s"]; } 232 | i32_rem_u(op1code, op2code) { return [op1code, op2code, "i32.rem_u"]; } 233 | i32_and(op1code, op2code) { return [op1code, op2code, "i32.and"]; } 234 | i32_or(op1code, op2code) { return [op1code, op2code, "i32.or"]; } 235 | i32_xor(op1code, op2code) { return [op1code, op2code, "i32.xor"]; } 236 | i32_shl(op1code, op2code) { return [op1code, op2code, "i32.shl"]; } 237 | i32_shr_s(op1code, op2code) { return [op1code, op2code, "i32.shr_s"]; } 238 | i32_shr_u(op1code, op2code) { return [op1code, op2code, "i32.shr_u"]; } 239 | i32_rotl(op1code, op2code) { return [op1code, op2code, "i32.rotl"]; } 240 | i32_rotr(op1code, op2code) { return [op1code, op2code, "i32.rotr"]; } 241 | i32_wrap_i64(op1code) { return [op1code, "i32.wrap/i64"]; } 242 | 243 | ureachable() { return "unreachable"; } 244 | 245 | current_memory() { return "current_memory"; } 246 | 247 | comment(c) { return ";; " + c; } 248 | 249 | } 250 | -------------------------------------------------------------------------------- /src/functionbuilder.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 0KIMS association. 3 | 4 | This file is part of wasmbuilder 5 | 6 | wasmbuilder is a free software: you can redistribute it and/or modify it 7 | under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 | License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with wasmbuilder. If not, see . 18 | */ 19 | 20 | import { CodeBuilder } from "./codebuilder.js"; 21 | import * as utils from "./utils.js"; 22 | 23 | const typeCodes = { 24 | "i32": 0x7f, 25 | "i64": 0x7e, 26 | "f32": 0x7d, 27 | "f64": 0x7c, 28 | "anyfunc": 0x70, 29 | "func": 0x60, 30 | "emptyblock": 0x40 31 | }; 32 | 33 | 34 | export class FunctionBuilder { 35 | 36 | constructor (module, fnName, fnType, moduleName, fieldName) { 37 | if (fnType == "import") { 38 | this.fnType = "import"; 39 | this.moduleName = moduleName; 40 | this.fieldName = fieldName; 41 | } else if (fnType == "internal") { 42 | this.fnType = "internal"; 43 | } else { 44 | throw new Error("Invalid function fnType: " + fnType); 45 | } 46 | this.module = module; 47 | this.fnName = fnName; 48 | this.params = []; 49 | this.locals = []; 50 | this.localIdxByName = {}; 51 | this.code = []; 52 | this.returnType = null; 53 | this.nextLocal =0; 54 | } 55 | 56 | addParam(paramName, paramType) { 57 | if (this.localIdxByName[paramName]) 58 | throw new Error(`param already exists. Function: ${this.fnName}, Param: ${paramName} `); 59 | const idx = this.nextLocal++; 60 | this.localIdxByName[paramName] = idx; 61 | this.params.push({ 62 | type: paramType 63 | }); 64 | } 65 | 66 | addLocal(localName, localType, _length) { 67 | const length = _length || 1; 68 | if (this.localIdxByName[localName]) 69 | throw new Error(`local already exists. Function: ${this.fnName}, Param: ${localName} `); 70 | const idx = this.nextLocal++; 71 | this.localIdxByName[localName] = idx; 72 | this.locals.push({ 73 | type: localType, 74 | length: length 75 | }); 76 | } 77 | 78 | setReturnType(returnType) { 79 | if (this.returnType) 80 | throw new Error(`returnType already defined. Function: ${this.fnName}`); 81 | this.returnType = returnType; 82 | } 83 | 84 | getSignature() { 85 | const params = [...utils.varuint32(this.params.length), ...this.params.map((p) => typeCodes[p.type])]; 86 | const returns = this.returnType ? [0x01, typeCodes[this.returnType]] : [0]; 87 | return [0x60, ...params, ...returns]; 88 | } 89 | 90 | getBody() { 91 | const locals = this.locals.map((l) => [ 92 | ...utils.varuint32(l.length), 93 | typeCodes[l.type] 94 | ]); 95 | 96 | const body = [ 97 | ...utils.varuint32(this.locals.length), 98 | ...[].concat(...locals), 99 | ...this.code, 100 | 0x0b 101 | ]; 102 | return [ 103 | ...utils.varuint32(body.length), 104 | ...body 105 | ]; 106 | } 107 | 108 | addCode(...code) { 109 | this.code.push(...[].concat(...[...code])); 110 | } 111 | 112 | getCodeBuilder() { 113 | return new CodeBuilder(this); 114 | } 115 | } 116 | -------------------------------------------------------------------------------- /src/functionbuilder_wat.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 0KIMS association. 3 | 4 | This file is part of wasmbuilder 5 | 6 | wasmbuilder is a free software: you can redistribute it and/or modify it 7 | under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 | License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with wasmbuilder. If not, see . 18 | */ 19 | 20 | import { CodeBuilderWat } from "./codebuilder_wat.js"; 21 | import * as utils from "./utils.js"; 22 | 23 | export class FunctionBuilderWat { 24 | 25 | constructor (module, fnName, fnType, moduleName, fieldName) { 26 | if (fnType == "import") { 27 | this.fnType = "import"; 28 | this.moduleName = moduleName; 29 | this.fieldName = fieldName; 30 | } else if (fnType == "internal") { 31 | this.fnType = "internal"; 32 | this.comment = moduleName; 33 | } else { 34 | throw new Error("Invalid function fnType: " + fnType); 35 | } 36 | this.module = module; 37 | this.fnName = fnName; 38 | this.params = []; 39 | this.locals = []; 40 | this.localIdxByName = {}; 41 | this.code = []; 42 | this.returnType = null; 43 | this.nextLocal =0; 44 | } 45 | 46 | addParam(paramName, paramType) { 47 | if (this.localIdxByName[paramName]) 48 | throw new Error(`param already exists. Function: ${this.fnName}, Param: ${paramName} `); 49 | const idx = this.nextLocal++; 50 | this.localIdxByName[paramName] = idx; 51 | this.params.push({ 52 | type: paramType, 53 | name: paramName 54 | }); 55 | } 56 | 57 | addLocal(localName, localType, _length) { 58 | if ((typeof _length != "undefined") && (_length != 1)) { 59 | throw new Error("Locals greater than 1 not implemented"); 60 | } 61 | if (this.localIdxByName[localName]) 62 | throw new Error(`local already exists. Function: ${this.fnName}, Param: ${localName} `); 63 | const idx = this.nextLocal++; 64 | this.localIdxByName[localName] = idx; 65 | this.locals.push({ 66 | type: localType, 67 | name: localName, 68 | }); 69 | } 70 | 71 | setReturnType(returnType) { 72 | if (this.returnType) 73 | throw new Error(`returnType already defined. Function: ${this.fnName}`); 74 | this.returnType = returnType; 75 | } 76 | 77 | getSignature() { 78 | let p = ""; 79 | for (let i=0; i. 18 | */ 19 | 20 | 21 | import { FunctionBuilder } from "./functionbuilder.js"; 22 | import * as utils from "./utils.js"; 23 | 24 | export class ModuleBuilder { 25 | 26 | constructor() { 27 | this.functions = []; 28 | this.functionIdxByName = {}; 29 | this.nImportFunctions = 0; 30 | this.nInternalFunctions =0; 31 | this.memory = { 32 | pagesSize: 1, 33 | moduleName: "env", 34 | fieldName: "memory" 35 | }; 36 | this.free = 8; 37 | this.datas = []; 38 | this.modules = {}; 39 | this.exports = []; 40 | this.functionsTable = []; 41 | } 42 | 43 | build() { 44 | this._setSignatures(); 45 | return new Uint8Array([ 46 | ...utils.u32(0x6d736100), 47 | ...utils.u32(1), 48 | ...this._buildType(), 49 | ...this._buildImport(), 50 | ...this._buildFunctionDeclarations(), 51 | ...this._buildFunctionsTable(), 52 | ...this._buildExports(), 53 | ...this._buildElements(), 54 | ...this._buildCode(), 55 | ...this._buildData() 56 | ]); 57 | } 58 | 59 | addFunction(fnName) { 60 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 61 | throw new Error(`Function already defined: ${fnName}`); 62 | 63 | const idx = this.functions.length; 64 | this.functionIdxByName[fnName] = idx; 65 | 66 | this.functions.push(new FunctionBuilder(this, fnName, "internal")); 67 | 68 | this.nInternalFunctions++; 69 | return this.functions[idx]; 70 | } 71 | 72 | addIimportFunction(fnName, moduleName, _fieldName) { 73 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 74 | throw new Error(`Function already defined: ${fnName}`); 75 | 76 | if ( (this.functions.length>0) 77 | &&(this.functions[this.functions.length-1].type == "internal")) 78 | throw new Error(`Import functions must be declared before internal: ${fnName}`); 79 | 80 | let fieldName = _fieldName || fnName; 81 | 82 | const idx = this.functions.length; 83 | this.functionIdxByName[fnName] = idx; 84 | 85 | this.functions.push(new FunctionBuilder(this, fnName, "import", moduleName, fieldName)); 86 | 87 | this.nImportFunctions ++; 88 | return this.functions[idx]; 89 | } 90 | 91 | setMemory(pagesSize, moduleName, fieldName) { 92 | this.memory = { 93 | pagesSize: pagesSize, 94 | moduleName: moduleName || "env", 95 | fieldName: fieldName || "memory" 96 | }; 97 | } 98 | 99 | exportFunction(fnName, _exportName) { 100 | const exportName = _exportName || fnName; 101 | if (typeof(this.functionIdxByName[fnName]) === "undefined") 102 | throw new Error(`Function not defined: ${fnName}`); 103 | const idx = this.functionIdxByName[fnName]; 104 | if (exportName != fnName) { 105 | this.functionIdxByName[exportName] = idx; 106 | } 107 | this.exports.push({ 108 | exportName: exportName, 109 | idx: idx 110 | }); 111 | } 112 | 113 | addFunctionToTable(fnName) { 114 | const idx = this.functionIdxByName[fnName]; 115 | this.functionsTable.push(idx); 116 | } 117 | 118 | addData(offset, bytes) { 119 | this.datas.push({ 120 | offset: offset, 121 | bytes: bytes 122 | }); 123 | } 124 | 125 | alloc(a, b) { 126 | let size; 127 | let bytes; 128 | if ((Array.isArray(a) || ArrayBuffer.isView(a)) && (typeof(b) === "undefined")) { 129 | size = a.length; 130 | bytes = a; 131 | } else { 132 | size = a; 133 | bytes = b; 134 | } 135 | size = (((size-1)>>3) +1)<<3; // Align to 64 bits. 136 | const p = this.free; 137 | this.free += size; 138 | if (bytes) { 139 | this.addData(p, bytes); 140 | } 141 | return p; 142 | } 143 | 144 | allocString(s) { 145 | const encoder = new globalThis.TextEncoder(); 146 | const uint8array = encoder.encode(s); 147 | return this.alloc([...uint8array, 0]); 148 | } 149 | 150 | _setSignatures() { 151 | this.signatures = []; 152 | const signatureIdxByName = {}; 153 | if (this.functionsTable.length>0) { 154 | const signature = this.functions[this.functionsTable[0]].getSignature(); 155 | const signatureName = "s_"+utils.toHexString(signature); 156 | signatureIdxByName[signatureName] = 0; 157 | this.signatures.push(signature); 158 | } 159 | for (let i=0; i. 18 | */ 19 | 20 | 21 | import { FunctionBuilderWat } from "./functionbuilder_wat.js"; 22 | import * as utils from "./utils.js"; 23 | 24 | export class ModuleBuilderWat { 25 | 26 | constructor() { 27 | this.functions = []; 28 | this.functionIdxByName = {}; 29 | this.nImportFunctions = 0; 30 | this.nInternalFunctions =0; 31 | this.memory = { 32 | pagesSize: 1, 33 | moduleName: "env", 34 | fieldName: "memory" 35 | }; 36 | this.free = 8; 37 | this.datas = []; 38 | this.modules = {}; 39 | this.exports = []; 40 | this.functionsTable = []; 41 | } 42 | 43 | build() { 44 | const src = []; 45 | this._setSignatures(); 46 | src.push(this._buildType()); 47 | src.push(this._buildImport()); 48 | if (this.functionsTable.length>0) { 49 | src.push(this._buildFunctionsTable()); 50 | } 51 | if (this.exports.length > 0) { 52 | src.push(this._buildExports()); 53 | } 54 | if (this.functionsTable.length>0) { 55 | src.push(this._buildElements()); 56 | } 57 | if (this.nInternalFunctions>0) { 58 | src.push(this._buildFunctions()); 59 | } 60 | src.push(this._buildData()); 61 | return [ 62 | "(module", 63 | utils.ident(src), 64 | ")" 65 | ]; 66 | } 67 | 68 | addFunction(fnName, comment) { 69 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 70 | throw new Error(`Function already defined: ${fnName}`); 71 | 72 | const idx = this.functions.length; 73 | this.functionIdxByName[fnName] = idx; 74 | 75 | this.functions.push(new FunctionBuilderWat(this, fnName, "internal", comment)); 76 | 77 | this.nInternalFunctions++; 78 | return this.functions[idx]; 79 | } 80 | 81 | addIimportFunction(fnName, moduleName, _fieldName) { 82 | if (typeof(this.functionIdxByName[fnName]) !== "undefined") 83 | throw new Error(`Function already defined: ${fnName}`); 84 | 85 | if ( (this.functions.length>0) 86 | &&(this.functions[this.functions.length-1].type == "internal")) 87 | throw new Error(`Import functions must be declared before internal: ${fnName}`); 88 | 89 | let fieldName = _fieldName || fnName; 90 | 91 | const idx = this.functions.length; 92 | this.functionIdxByName[fnName] = idx; 93 | 94 | this.functions.push(new FunctionBuilderWat(this, fnName, "import", moduleName, fieldName)); 95 | 96 | this.nImportFunctions ++; 97 | return this.functions[idx]; 98 | } 99 | 100 | setMemory(pagesSize, moduleName, fieldName) { 101 | this.memory = { 102 | pagesSize: pagesSize, 103 | moduleName: moduleName || "env", 104 | fieldName: fieldName || "memory" 105 | }; 106 | } 107 | 108 | exportFunction(fnName, _exportName) { 109 | const exportName = _exportName || fnName; 110 | if (typeof(this.functionIdxByName[fnName]) === "undefined") 111 | throw new Error(`Function not defined: ${fnName}`); 112 | const idx = this.functionIdxByName[fnName]; 113 | if (exportName != fnName) { 114 | this.functionIdxByName[exportName] = idx; 115 | } 116 | this.exports.push({ 117 | exportName: exportName, 118 | idx: idx 119 | }); 120 | } 121 | 122 | addFunctionToTable(fnName) { 123 | const idx = this.functionIdxByName[fnName]; 124 | this.functionsTable.push(idx); 125 | } 126 | 127 | addData(offset, bytes) { 128 | this.datas.push({ 129 | offset: offset, 130 | bytes: bytes 131 | }); 132 | } 133 | 134 | alloc(a, b) { 135 | let size; 136 | let bytes; 137 | if ((Array.isArray(a) || ArrayBuffer.isView(a)) && (typeof(b) === "undefined")) { 138 | size = a.length; 139 | bytes = a; 140 | } else { 141 | size = a; 142 | bytes = b; 143 | } 144 | size = (((size-1)>>3) +1)<<3; // Align to 64 bits. 145 | const p = this.free; 146 | this.free += size; 147 | if (bytes) { 148 | this.addData(p, bytes); 149 | } 150 | return p; 151 | } 152 | 153 | allocString(s) { 154 | const encoder = new TextEncoder(); 155 | const uint8array = encoder.encode(s); 156 | return this.alloc([...uint8array, 0]); 157 | } 158 | 159 | _setSignatures() { 160 | this.signatures = []; 161 | const signatureIdxByName = {}; 162 | if (this.functionsTable.length>0) { 163 | const signature = this.functions[this.functionsTable[0]].getSignature(); 164 | const signatureName = this.functions[this.functionsTable[0]].getSignatureName(); 165 | signatureIdxByName[signatureName] = 0; 166 | this.signatures.push(signature); 167 | } 168 | for (let i=0; i126 || b[i] == 34 || b[i]==92) { 237 | let h=b[i].toString(16); 238 | while (h.length<2) h = "0"+h; 239 | S += "\\" + h; 240 | } else { 241 | S += String.fromCharCode(b[i]); 242 | } 243 | } 244 | S += "\""; 245 | return S; 246 | } 247 | } 248 | 249 | } 250 | -------------------------------------------------------------------------------- /src/protoboard.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 0KIMS association. 3 | 4 | This file is part of websnark (Web Assembly zkSnark Prover). 5 | 6 | websnark is a free software: you can redistribute it and/or modify it 7 | under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | websnark is distributed in the hope that it will be useful, but WITHOUT 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 | License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with websnark. If not, see . 18 | */ 19 | 20 | import { ModuleBuilder } from "./modulebuilder.js"; 21 | 22 | export async function buildProtoboard(builder, defBytes, bitsPerBytes) { 23 | const protoboard = new Protoboard(); 24 | 25 | protoboard.defBytes = defBytes; 26 | protoboard.bitsPerBytes = bitsPerBytes || 32; 27 | 28 | protoboard.memory = new WebAssembly.Memory({initial:20000}); 29 | protoboard.i32 = new Uint32Array(protoboard.memory.buffer); 30 | protoboard.i8 = new Uint8Array(protoboard.memory.buffer); 31 | 32 | const moduleBuilder = new ModuleBuilder(); 33 | 34 | const fLog32 = moduleBuilder.addIimportFunction("debug_log32", "debug", "log32"); 35 | fLog32.addParam("x", "i32"); 36 | const fLog64 = moduleBuilder.addIimportFunction("debug_log64", "debug", "log64"); 37 | fLog64.addParam("x", "i32"); 38 | fLog64.addParam("y", "i32"); 39 | 40 | buildLog32(moduleBuilder); 41 | buildLog64(moduleBuilder); 42 | 43 | builder(moduleBuilder, protoboard); 44 | 45 | 46 | const code = moduleBuilder.build(); 47 | 48 | const wasmModule = await WebAssembly.compile(code); 49 | 50 | protoboard.log = console.log; 51 | 52 | protoboard.instance = await WebAssembly.instantiate(wasmModule, { 53 | env: { 54 | "memory": protoboard.memory 55 | }, 56 | debug: { 57 | log32: function (c1) { 58 | if (c1<0) c1 = 0x100000000+c1; 59 | let s=c1.toString(16); 60 | while (s.length<8) s = "0"+s; 61 | protoboard.log(s + ": " + c1.toString()); 62 | }, 63 | log64: function (c1, c2) { 64 | if (c1<0) c1 = 0x100000000+c1; 65 | if (c2<0) c2 = 0x100000000+c2; 66 | const n = BigInt(c1) + (BigInt(c2) << 32n); 67 | let s=n.toString(16); 68 | while (s.length<16) s = "0"+s; 69 | protoboard.log(s + ": " + n.toString()); 70 | } 71 | } 72 | }); 73 | 74 | Object.assign(protoboard, protoboard.instance.exports); 75 | Object.assign(protoboard, moduleBuilder.modules); 76 | 77 | return protoboard; 78 | 79 | function buildLog32(module) { 80 | 81 | const f = module.addFunction("log32"); 82 | f.addParam("x", "i32"); 83 | 84 | const c = f.getCodeBuilder(); 85 | f.addCode(c.call("debug_log32", c.getLocal("x"))); 86 | } 87 | 88 | function buildLog64(module) { 89 | 90 | const f = module.addFunction("log64"); 91 | f.addParam("x", "i64"); 92 | 93 | const c = f.getCodeBuilder(); 94 | f.addCode(c.call( 95 | "debug_log64", 96 | c.i32_wrap_i64(c.getLocal("x")), 97 | c.i32_wrap_i64( 98 | c.i64_shr_u( 99 | c.getLocal("x"), 100 | c.i64_const(32) 101 | ) 102 | ) 103 | )); 104 | } 105 | 106 | } 107 | 108 | class Protoboard { 109 | 110 | constructor() { 111 | 112 | } 113 | 114 | alloc(length) { 115 | if (typeof length === "undefined") { 116 | length = this.defBytes; 117 | } 118 | length = (((length-1)>>3) +1)<<3; // Align to 64 bits. 119 | 120 | const res = this.i32[0]; 121 | this.i32[0] += length; 122 | return res; 123 | } 124 | 125 | set(pos, nums, nBytes) { 126 | if (!Array.isArray(nums)) { 127 | nums = [nums]; 128 | } 129 | if (typeof nBytes === "undefined") { 130 | nBytes = this.defBytes; 131 | } 132 | 133 | const words = Math.floor((nBytes -1)/4)+1; 134 | let p = pos; 135 | 136 | const CHUNK = 1n << BigInt(this.bitsPerBytes); 137 | 138 | for (let i=0; i>2] = Number(remainder); 144 | v = quotient; 145 | p += 4; 146 | } 147 | if (v !== 0n) { 148 | throw new Error("Expected v to be 0"); 149 | } 150 | } 151 | 152 | return pos; 153 | } 154 | 155 | get(pos, nElements, nBytes) { 156 | if (typeof nBytes == "undefined") { 157 | if (typeof nElements == "undefined") { 158 | nElements = 1; 159 | nBytes = this.defBytes; 160 | } else { 161 | nElements = nBytes; 162 | nBytes = this.defBytes; 163 | } 164 | } 165 | 166 | const words = Math.floor((nBytes -1)/4)+1; 167 | 168 | const CHUNK = 1n << BigInt(this.bitsPerBytes); 169 | 170 | 171 | const nums = []; 172 | for (let i=0; i=0; j--) { 175 | acc = acc * CHUNK; 176 | let v = this.i32[(pos>>2)+j]; 177 | if (this.bitsPerBytes <32) { 178 | if (v&0x80000000) v = v-0x100000000; 179 | } 180 | acc = acc + BigInt(v); 181 | } 182 | nums.push(acc); 183 | pos += words*4; 184 | } 185 | 186 | if (nums.length == 1) return nums[0]; 187 | return nums; 188 | } 189 | } 190 | -------------------------------------------------------------------------------- /src/utils.js: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 0KIMS association. 3 | 4 | This file is part of wasmbuilder 5 | 6 | wasmbuilder is a free software: you can redistribute it and/or modify it 7 | under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | wasmbuilder is distributed in the hope that it will be useful, but WITHOUT 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 | License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with wasmbuilder. If not, see . 18 | */ 19 | 20 | export function toNumber(n) { 21 | return BigInt(n); 22 | } 23 | 24 | export function isNegative(n) { 25 | return n < 0n; 26 | } 27 | 28 | export function isZero(n) { 29 | return n === 0n; 30 | } 31 | 32 | export function bitLength(n) { 33 | if (isNegative(n)) { 34 | return n.toString(2).length - 1; // discard the - sign 35 | } else { 36 | return n.toString(2).length; 37 | } 38 | } 39 | 40 | export function u32(n) { 41 | const b = []; 42 | const v = toNumber(n); 43 | b.push(Number(v & 0xFFn)); 44 | b.push(Number(v >> 8n & 0xFFn)); 45 | b.push(Number(v >> 16n & 0xFFn)); 46 | b.push(Number(v >> 24n & 0xFFn)); 47 | return b; 48 | } 49 | 50 | export function u64(n) { 51 | const b = []; 52 | const v = toNumber(n); 53 | b.push(Number(v & 0xFFn)); 54 | b.push(Number(v >> 8n & 0xFFn)); 55 | b.push(Number(v >> 16n & 0xFFn)); 56 | b.push(Number(v >> 24n & 0xFFn)); 57 | b.push(Number(v >> 32n & 0xFFn)); 58 | b.push(Number(v >> 40n & 0xFFn)); 59 | b.push(Number(v >> 48n & 0xFFn)); 60 | b.push(Number(v >> 56n & 0xFFn)); 61 | return b; 62 | } 63 | 64 | export function toUTF8Array(str) { 65 | var utf8 = []; 66 | for (var i=0; i < str.length; i++) { 67 | var charcode = str.charCodeAt(i); 68 | if (charcode < 0x80) utf8.push(charcode); 69 | else if (charcode < 0x800) { 70 | utf8.push(0xc0 | (charcode >> 6), 71 | 0x80 | (charcode & 0x3f)); 72 | } 73 | else if (charcode < 0xd800 || charcode >= 0xe000) { 74 | utf8.push(0xe0 | (charcode >> 12), 75 | 0x80 | ((charcode>>6) & 0x3f), 76 | 0x80 | (charcode & 0x3f)); 77 | } 78 | // surrogate pair 79 | else { 80 | i++; 81 | // UTF-16 encodes 0x10000-0x10FFFF by 82 | // subtracting 0x10000 and splitting the 83 | // 20 bits of 0x0-0xFFFFF into two halves 84 | charcode = 0x10000 + (((charcode & 0x3ff)<<10) 85 | | (str.charCodeAt(i) & 0x3ff)); 86 | utf8.push(0xf0 | (charcode >>18), 87 | 0x80 | ((charcode>>12) & 0x3f), 88 | 0x80 | ((charcode>>6) & 0x3f), 89 | 0x80 | (charcode & 0x3f)); 90 | } 91 | } 92 | return utf8; 93 | } 94 | 95 | export function string(str) { 96 | const bytes = toUTF8Array(str); 97 | return [ ...varuint32(bytes.length), ...bytes ]; 98 | } 99 | 100 | export function varuint(n) { 101 | const code = []; 102 | let v = toNumber(n); 103 | if (isNegative(v)) throw new Error("Number cannot be negative"); 104 | while (!isZero(v)) { 105 | code.push(Number(v & 0x7Fn)); 106 | v = v >> 7n; 107 | } 108 | if (code.length==0) code.push(0); 109 | for (let i=0; i 0xFFFFFFFFn) throw new Error("Number too big"); 142 | if (v > 0x7FFFFFFFn) v = v - 0x100000000n; 143 | // bigInt("-80000000", 16) as base10 144 | if (v < -2147483648n) throw new Error("Number too small"); 145 | return varint(v); 146 | } 147 | 148 | export function varint64(n) { 149 | let v = toNumber(n); 150 | if (v > 0xFFFFFFFFFFFFFFFFn) throw new Error("Number too big"); 151 | if (v > 0x7FFFFFFFFFFFFFFFn) v = v - 0x10000000000000000n; 152 | // bigInt("-8000000000000000", 16) as base10 153 | if (v < -9223372036854775808n) throw new Error("Number too small"); 154 | return varint(v); 155 | } 156 | 157 | export function varuint32(n) { 158 | let v = toNumber(n); 159 | if (v > 0xFFFFFFFFn) throw new Error("Number too big"); 160 | return varuint(v); 161 | } 162 | 163 | export function varuint64(n) { 164 | let v = toNumber(n); 165 | if (v > 0xFFFFFFFFFFFFFFFFn) throw new Error("Number too big"); 166 | return varuint(v); 167 | } 168 | 169 | export function toHexString(byteArray) { 170 | return Array.from(byteArray, function(byte) { 171 | return ("0" + (byte & 0xFF).toString(16)).slice(-2); 172 | }).join(""); 173 | } 174 | 175 | export function ident(text) { 176 | if (typeof text === "string") { 177 | let lines = text.split("\n"); 178 | for (let i=0; i ("00" + x.toString(16)).slice(-2)).join(""); 7 | } 8 | 9 | describe("Basic tests for WasmGenerator", () => { 10 | it("Should generate a basic module", () => { 11 | const module = new ModuleBuilder(); 12 | 13 | const bytes = module.build(); 14 | 15 | assert.equal("0061736d01000000010100020f0103656e76066d656d6f72790200010301000701000a01000b0a010041000b0408000000",buf2hex(bytes) ); 16 | }); 17 | }); 18 | -------------------------------------------------------------------------------- /test/protoboard.js: -------------------------------------------------------------------------------- 1 | import assert from "assert"; 2 | 3 | import { buildProtoboard } from "../main.js"; 4 | 5 | describe("Basic protoboard test", () => { 6 | it("Should generate a basic protoboard", async () => { 7 | const pb = await buildProtoboard(function(module) { 8 | 9 | buildTest1(); 10 | buildTest2(); 11 | buildTest3(); 12 | 13 | function buildTest1() { 14 | const f = module.addFunction("test1"); 15 | 16 | const c = f.getCodeBuilder(); 17 | f.addCode(c.call("log32", c.i32_const(44))); 18 | 19 | 20 | module.exportFunction("test1"); 21 | 22 | } 23 | 24 | function buildTest2() { 25 | const f = module.addFunction("test2"); 26 | 27 | const c = f.getCodeBuilder(); 28 | f.addCode(c.call("log64", c.i64_const(66))); 29 | 30 | 31 | module.exportFunction("test2"); 32 | 33 | } 34 | 35 | // Regression test for PR#20 36 | function buildTest3() { 37 | const f = module.addFunction("test3"); 38 | 39 | const c = f.getCodeBuilder(); 40 | f.addCode(c.call("log32", c.i32_const(-66))); 41 | 42 | module.exportFunction("test3"); 43 | } 44 | }); 45 | 46 | const logs = []; 47 | pb.log = function(S) { 48 | logs.push(S); 49 | }; 50 | 51 | pb.test1(); 52 | pb.test2(); 53 | pb.test3(); 54 | 55 | assert.equal(logs[0], "0000002c: 44"); 56 | assert.equal(logs[1], "0000000000000042: 66"); 57 | // Regression test for PR#20 58 | assert.equal(logs[2], "ffffffbe: 4294967230"); 59 | }); 60 | 61 | it("Can `alloc`, `set`, and `get` data", async() => { 62 | const n8q=48; 63 | 64 | const pb = await buildProtoboard(function() {}, n8q); 65 | 66 | const e1 = pb.alloc(n8q*2); 67 | const pos = pb.set(e1, 1n); 68 | 69 | assert.equal(pb.get(pos), 1n); 70 | }); 71 | }); 72 | --------------------------------------------------------------------------------