├── .gitignore ├── .idea ├── .gitignore ├── .idea │ ├── .gitignore │ ├── .idea.iml │ ├── codeStyles │ │ ├── Project.xml │ │ └── codeStyleConfig.xml │ ├── misc.xml │ ├── modules.xml │ └── workspace.xml ├── codeStyles │ ├── Project.xml │ └── codeStyleConfig.xml ├── compiler.xml ├── encodings.xml ├── inspectionProfiles │ └── Project_Default.xml ├── jarRepositories.xml ├── libraries │ ├── Maven__org_bytedeco_javacpp_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_android_arm64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_android_arm_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_android_x86_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_android_x86_64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_ios_arm64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_ios_x86_64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_linux_arm64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_linux_armhf_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_linux_ppc64le_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_linux_x86_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_linux_x86_64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_macosx_arm64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_macosx_x86_64_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_platform_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_windows_x86_1_5_7.xml │ ├── Maven__org_bytedeco_javacpp_windows_x86_64_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_linux_arm64_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_linux_armhf_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_linux_ppc64le_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_linux_x86_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_linux_x86_64_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_macosx_arm64_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_macosx_x86_64_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_platform_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_windows_x86_13_0_1_1_5_7.xml │ ├── Maven__org_bytedeco_llvm_windows_x86_64_13_0_1_1_5_7.xml │ └── antlr_4_9_1_complete.xml ├── markdown.xml ├── misc.xml ├── modules.xml ├── remote-targets.xml ├── uiDesigner.xml └── vcs.xml ├── .metals ├── metals.lock.db ├── metals.log └── metals.mv.db ├── .vscode └── settings.json ├── LICENSE ├── Lab.iml ├── Makefile ├── Makefile.git ├── README.md ├── classes ├── ArrayType.class ├── BaseScope.class ├── BaseSymbol.class ├── BasicTypeSymbol.class ├── FunctionSymbol.class ├── FunctionType.class ├── GlobalScope.class ├── LocalScope.class ├── Main.class ├── MyLexerErrorListener.class ├── MyParserErrorListener.class ├── Scope.class ├── Symbol.class ├── SysYLexer.class ├── SysYParser$BTypeContext.class ├── SysYParser$BlockContext.class ├── SysYParser$BlockItemContext.class ├── SysYParser$CompUnitContext.class ├── SysYParser$CondContext.class ├── SysYParser$ConstDeclContext.class ├── SysYParser$ConstDefContext.class ├── SysYParser$ConstExpContext.class ├── SysYParser$ConstInitValContext.class ├── SysYParser$DeclContext.class ├── SysYParser$ExpContext.class ├── SysYParser$FuncDefContext.class ├── SysYParser$FuncFParamContext.class ├── SysYParser$FuncFParamsContext.class ├── SysYParser$FuncRParamsContext.class ├── SysYParser$FuncTypeContext.class ├── SysYParser$InitValContext.class ├── SysYParser$LValContext.class ├── SysYParser$NumberContext.class ├── SysYParser$ParamContext.class ├── SysYParser$ProgramContext.class ├── SysYParser$StmtContext.class ├── SysYParser$UnaryOpContext.class ├── SysYParser$VarDeclContext.class ├── SysYParser$VarDefContext.class ├── SysYParser.class ├── SysYParserBaseListener.class ├── SysYParserBaseVisitor.class ├── SysYParserListener.class ├── SysYParserVisitor.class ├── Type.class ├── VariableSymbol.class └── Visitor.class ├── docus ├── IDEA导入ANTLR包的方式.pdf ├── LLVM.pdf ├── SysY语言定义.pdf ├── images │ ├── Lab5-Scope-1672913283336-4.png │ ├── Lab5-Scope.png │ ├── Lab5-Scpoe.png │ └── image-20221219201711996.png ├── lab0.md ├── lab1.md ├── lab2.md ├── lab3.md ├── lab4.md ├── lab4及后续实验环境搭建.pdf ├── lab5.md ├── lab5 │ └── Lab5-Scope-1672913283336-4.png ├── lab6.md ├── lab7.md └── lab8.md ├── nohup.out ├── pom.xml ├── src ├── LLVMIRVisitor.java ├── Main.java ├── Scope │ ├── BaseScope.java │ ├── FunctionScope.java │ ├── GlobalScope.java │ ├── LocalScope.java │ └── Scope.java ├── Symbol │ ├── BaseSymbol.java │ ├── BasicTypeSymbol.java │ ├── Symbol.java │ └── VariableSymbol.java ├── SysYLexer.g4 ├── SysYLexer.interp ├── SysYLexer.java ├── SysYLexer.tokens ├── SysYParser.g4 ├── SysYParser.interp ├── SysYParser.java ├── SysYParser.tokens ├── SysYParserBaseListener.java ├── SysYParserBaseVisitor.java ├── SysYParserListener.java ├── SysYParserVisitor.java ├── Type │ ├── ArrayType.java │ ├── FunctionType.java │ └── Type.java ├── Visitor.java └── gen │ ├── SysYLexer.interp │ ├── SysYLexer.java │ └── SysYLexer.tokens ├── submit.sh ├── target └── classes │ ├── LLVMIRVisitor.class │ ├── Main.class │ ├── Scope │ ├── BaseScope.class │ ├── FunctionScope.class │ ├── GlobalScope.class │ ├── LocalScope.class │ └── Scope.class │ ├── Symbol │ ├── BaseSymbol.class │ ├── BasicTypeSymbol.class │ ├── Symbol.class │ └── VariableSymbol.class │ ├── SysYLexer.class │ ├── SysYParser$AddExpContext.class │ ├── SysYParser$AndExpContext.class │ ├── SysYParser$AssignmentContext.class │ ├── SysYParser$BTypeContext.class │ ├── SysYParser$BlockContext.class │ ├── SysYParser$BlockItemContext.class │ ├── SysYParser$BlockStmtContext.class │ ├── SysYParser$BreakStmtContext.class │ ├── SysYParser$CompUnitContext.class │ ├── SysYParser$CompareExpContext.class │ ├── SysYParser$CondContext.class │ ├── SysYParser$CondExpContext.class │ ├── SysYParser$ConstDeclContext.class │ ├── SysYParser$ConstDefContext.class │ ├── SysYParser$ConstExpContext.class │ ├── SysYParser$ConstInitValContext.class │ ├── SysYParser$ContinueStmtContext.class │ ├── SysYParser$DeclContext.class │ ├── SysYParser$ExpContext.class │ ├── SysYParser$FuncCallExpContext.class │ ├── SysYParser$FuncDefContext.class │ ├── SysYParser$FuncFParamContext.class │ ├── SysYParser$FuncFParamsContext.class │ ├── SysYParser$FuncRParamsContext.class │ ├── SysYParser$FuncTypeContext.class │ ├── SysYParser$IfStmtContext.class │ ├── SysYParser$InitValContext.class │ ├── SysYParser$LValContext.class │ ├── SysYParser$LValExpContext.class │ ├── SysYParser$MulExpContext.class │ ├── SysYParser$NumExpContext.class │ ├── SysYParser$NumberContext.class │ ├── SysYParser$OrExpContext.class │ ├── SysYParser$ParamContext.class │ ├── SysYParser$ParenExpContext.class │ ├── SysYParser$PossibleExpContext.class │ ├── SysYParser$ProgramContext.class │ ├── SysYParser$RelationExpContext.class │ ├── SysYParser$ReturnStmtContext.class │ ├── SysYParser$StmtContext.class │ ├── SysYParser$UnaryExpContext.class │ ├── SysYParser$UnaryOpContext.class │ ├── SysYParser$VarDeclContext.class │ ├── SysYParser$VarDefContext.class │ ├── SysYParser$WhileStmtContext.class │ ├── SysYParser.class │ ├── SysYParserBaseListener.class │ ├── SysYParserBaseVisitor.class │ ├── SysYParserListener.class │ ├── SysYParserVisitor.class │ ├── Type │ ├── ArrayType.class │ ├── FunctionType.class │ └── Type.class │ └── Visitor.class └── tests ├── lab1-test1.sysy ├── lab1-test2.sysy ├── lab2-test1.sysy ├── lab2-test2.sysy ├── lab3-rename-test.sysy ├── lab3-type-test1.sysy ├── lab3-type-test2.sysy ├── lab4-test1.sysy ├── lab4-test2.sysy ├── lab5-test1.sysy ├── lab5-test2.sysy ├── lab6-test1.sysy ├── lab6-test2.sysy ├── lab7-test1.sysy ├── lab7-test2.sysy ├── lab8-test1.out ├── lab8-test1.sysy ├── lab8-test2.out └── lab8-test2.sysy /.gitignore: -------------------------------------------------------------------------------- 1 | /src/SysYLexer.java 2 | /src/SysYParser.java 3 | /src/SysYParserBaseListener.java 4 | /src/SysYParserBaseVisitor.java 5 | /src/SysYParserListener.java 6 | /src/SysYParserVisitor.java 7 | /classes 8 | /target 9 | .DS_Store 10 | /out 11 | /pom.xml 12 | /tests 13 | *.log 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| 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.metals/metals.lock.db: -------------------------------------------------------------------------------- 1 | #FileLock 2 | #Sat Dec 17 21:21:00 CST 2022 3 | server=localhost\:7811 4 | hostName=localhost 5 | method=file 6 | id=185203ebdccf1242df8951ff89375be88921aaf346a 7 | -------------------------------------------------------------------------------- /.metals/metals.log: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/EagleBear2002/Compiler-Lab/3c31797ca142ffc5116fc77f51d1477f1c9433ba/.metals/metals.log -------------------------------------------------------------------------------- /.metals/metals.mv.db: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/EagleBear2002/Compiler-Lab/3c31797ca142ffc5116fc77f51d1477f1c9433ba/.metals/metals.mv.db -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "files.watcherExclude": { 3 | "**/target": true 4 | } 5 | } -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2022 EagleBear2002 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /Lab.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | include Makefile.git 2 | 3 | export CLASSPATH=/usr/local/lib/antlr-*-complete.jar 4 | 5 | DOMAINNAME = 47.122.3.40:3000 6 | ANTLR = java -jar /usr/local/lib/antlr-*-complete.jar -listener -visitor -long-messages 7 | JAVAC = javac -g 8 | JAVA = java 9 | 10 | 11 | PFILE = $(shell find . -name "SysYParser.g4") 12 | LFILE = $(shell find . -name "SysYLexer.g4") 13 | JAVAFILE = $(shell find . -name "*.java") 14 | ANTLRPATH = $(shell find /usr/local/lib -name "antlr-*-complete.jar") 15 | 16 | compile: antlr 17 | $(call git_commit,"make") 18 | mkdir -p classes 19 | $(JAVAC) -classpath $(ANTLRPATH) $(JAVAFILE) -d classes 20 | 21 | lexer-test1: compile 22 | $(call git_commit, "lexer-test1") 23 | java -classpath ./classes:$(ANTLRPATH) Main tests/lexer-test1.sysy 24 | 25 | lexer-test2: compile 26 | $(call git_commit, "lexer-test2") 27 | java -classpath ./classes:$(ANTLRPATH) Main tests/lexer-test2.sysy 28 | 29 | parser-test1: compile 30 | $(call git_commit, "parser-test1") 31 | java -classpath ./classes:$(ANTLRPATH) Main tests/parser-test1.sysy 32 | 33 | parser-test2: compile 34 | $(call git_commit, "parser-test2") 35 | java -classpath ./classes:$(ANTLRPATH) Main tests/parser-test2.sysy 36 | 37 | type-test: compile 38 | $(call git_commit, "type-test") 39 | java -classpath ./classes:$(ANTLRPATH) Main tests/type-test.sysy 8 4 d 40 | 41 | type-test2: compile 42 | $(call git_commit, "type-test2") 43 | java -classpath ./classes:$(ANTLRPATH) Main tests/type-test2.sysy 8 4 d 44 | 45 | rename-test: compile 46 | $(call git_commit, "rename-test") 47 | java -classpath ./classes:$(ANTLRPATH) Main tests/rename-test.sysy 8 4 d 48 | 49 | llvm-ir-test1: compile 50 | $(call git_commit, "llvm-ir-test1") 51 | java -classpath ./classes:$(ANTLRPATH) Main tests/llvm-ir-test1.sysy tests/llvm-ir-test1.out 52 | 53 | llvm-ir-test2: compile 54 | $(call git_commit, "llvm-ir-test2") 55 | java -classpath ./classes:$(ANTLRPATH) Main tests/llvm-ir-test2.sysy tests/llvm-ir-test2.out 56 | 57 | antlr: $(LFILE) $(PFILE) 58 | $(ANTLR) $(PFILE) $(LFILE) 59 | 60 | test: compile 61 | $(call git_commit, "test") 62 | nohup java -classpath ./classes:$(ANTLRPATH) Main ./tests/test1.sysy & 63 | 64 | clean: 65 | rm -f src/*.tokens 66 | rm -f src/*.interp 67 | rm -f src/SysYLexer.java src/SysYParser.java src/SysYParserBaseListener.java src/SysYParserBaseVisitor.java src/SysYParserListener.java src/SysYParserVisitor.java 68 | rm -rf classes 69 | 70 | submit: 71 | git gc 72 | #bash -c "$$(curl -s $(DOMAINNAME)/scripts/submit-v2.sh)" 73 | bash submit.sh 74 | 75 | .PHONY: compile antlr test run clean submit -------------------------------------------------------------------------------- /Makefile.git: -------------------------------------------------------------------------------- 1 | STUID = 201250172 2 | STUNAME = 熊丘桓 3 | 4 | # DO NOT modify the following code!!! 5 | 6 | GITFLAGS = -q --author='tracer-compiler2022 ' --no-verify --allow-empty 7 | 8 | # prototype: git_commit(msg) 9 | define git_commit 10 | -@git add . -A --ignore-errors 11 | -@while (test -e .git/index.lock); do sleep 0.1; done 12 | -@(echo "> $(1)" && echo $(STUID) && id -un && uname -a && uptime && (head -c 20 /dev/urandom | hexdump -v -e '"%02x"') && echo) | git commit -F - $(GITFLAGS) 13 | -@sync 14 | endef 15 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # 《编译原理》课程实验 2 | 3 | ## 项目功能 4 | 5 | 该项目完成了从 SysY 语言的子集到 LLVMIR 的编译过程。 6 | 7 | SysY 语言的介绍参考 [SysY语言定义](docus/SysY语言定义.pdf)。 8 | 9 | ## 实验报告 10 | 11 | 8 个实验的实验报告在 `/docus` 目录中，包含每个实验的功能、设计和问题解决。 12 | 13 | ## 运行说明 14 | 15 | ### 操作系统 16 | 17 | 使用 Windows + WSL2（Ubuntu 20.04）完成项目开发。 18 | 19 | 在 Windows 系统中，使用 IDEA 也可运行。 20 | 21 | 使用 JDK 11 完成实验。 22 | 23 | ### 配置 Antlr4 24 | 25 | 若使用 IDE，仅需安装 Antlr 的插件即可，以 IDEA 为例，在左上角，文件->设置->插件，搜索 ANTLR4 即可找到插件，下载后重启即可，之后可通过该插件处理 `.g4` 文件。 26 | 27 | 若文本编辑器则需自行安装 Antlr 28 | 29 | 前往 [Antlr 官网](https://www.antlr.org/download.html)，下载 Complete ANTLR 4.9.X.jar，对于 Linux 也可以选择从命令行，使用： 30 | 31 | ```shell 32 | curl -O https://www.antlr.org/download/antlr-4.9.1-complete.jar 33 | ``` 34 | 35 | ### 配置 LLVM 36 | 37 | Linux 下安装： 38 | 39 | ```bash 40 | sudo apt-get install llvm 41 | sudo apt-get install clang 42 | ``` 43 | 44 | 安装后可通过如下命令测试，出现版本信息即为安装成功： 45 | 46 | ```bash 47 | clang -v 48 | lli --version 49 | ``` 50 | 51 | ### 问题解决 52 | 53 | 配置过程中遇到的问题解决方案参见： 54 | 55 | 1. [IDEA导入ANTLR包的方式](IDEA导入ANTLR包的方式.pdf) 56 | 2. [lab4及后续实验环境搭建](lab4及后续实验环境搭建.pdf) 57 | 3. 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-------------------------------------------------------------------------------- 1 | # 编译原理 Lab0 实验报告 2 | -------------------------------------------------------------------------------- /docus/lab1.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab1 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. 对 SysY 语言进行词法分析并报告错误的词法单元位置 8 | 2. 对不同进制的字面整型值进行转换 9 | 10 | ## 实验困难 11 | 12 | 实验所遇到的最大困难是使用 `make antlr` 时报错： 13 | 14 | ```bash 15 | eaglebear2002@EagleBear2002-HP:/mnt/c/Users/37756/Documents/NJU/2022Fall/Compilers/Lab$ make antlr 16 | java -jar /usr/local/lib/antlr-*-complete.jar -listener -visitor -long-messages ./src/SysYLexer.g4 17 | error(99): ./src/SysYLexer.g4::: grammar SysYLexer has no non-fragment rules 18 | make: *** [Makefile:32: antlr] Error 1 19 | ``` 20 | 21 | 笔者不理解该报错信息，反复检查词法规约，确认无误后在 Google 等搜索引擎需求帮助，未果。 22 | 23 | 笔者在检查项目目录时发现了问题所在： 24 | 25 | 笔者使用命令行编译项目在 `out` 目录中得到了 `SysYLexer.g4` 文件，并无意中注释掉该文件中所有词法规约内容。笔者之后未更改 `out/SysYLexer.g4` 内容，而是在修改 `src/SysYLexer.g4`。后面使用命令行编译时，系统总是默认先对 `out/SysYLexer.g4` 进行编译。 26 | 27 | 笔者删掉 `./out` 目录后解决了这一困难。 -------------------------------------------------------------------------------- /docus/lab2.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab2 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. 对 SysY 语言进行语法分析 8 | 2. 输出语法树和语法高亮 9 | 3. 报告语法错误并提供提示信息 10 | 11 | ## 实验困难 12 | 13 | 实验所遇到的最大困难是测试样例时报错： 14 | 15 | ```bash 16 | eaglebear2002@EagleBear2002-HP:/mnt/c/Users/37756/Documents/NJU/2022Fall/Compilers/Lab$ make parser-test1 17 | java -jar /usr/local/lib/antlr-*-complete.jar -listener -visitor -long-messages ./src/SysYParser.g4 ./src/SysYLexer.g4 18 | mkdir -p classes 19 | javac -g -classpath /usr/local/lib/antlr-4.9.1-complete.jar ./src/Main.java ./src/MyLexerErrorListener.java ./src/MyParserErrorListener.java ./src/S 20 | ysYLexer.java ./src/SysYParser.java ./src/SysYParserBaseListener.java ./src/SysYParserBaseVisitor.java ./src/SysYParserListener.java ./src/SysYParse 21 | rVisitor.java ./src/Visitor.java -d classes 22 | java -classpath ./classes:/usr/local/lib/antlr-4.9.1-complete.jar Main tests/parser-test1.sysy 23 | Error type B at Line 7: mismatched input '' expecting {'const', 'int', 'void'} 24 | ``` 25 | 26 | 笔者不理解该报错的原因，后来无意中注释掉词法分析过程后消除了该报错： 27 | 28 | ```java 29 | public class Main { 30 | public static SysYLexer lexer(String sourcePath) throws IOException { 31 | CharStream input = CharStreams.fromFileName(sourcePath); 32 | SysYLexer sysYLexer = new SysYLexer(input); 33 | 34 | // MyLexerErrorListener myLexerErrorListener = new MyLexerErrorListener(); 35 | // sysYLexer.removeErrorListeners(); 36 | // sysYLexer.addErrorListener(myLexerErrorListener); 37 | // List tokenList = sysYLexer.getAllTokens(); 38 | // 39 | // if (myLexerErrorListener.listenError()) { 40 | // return sysYLexer; 41 | // } 42 | // 43 | // String[] ruleNames = sysYLexer.getRuleNames(); 44 | // for (Token token : tokenList) { 45 | // String tokenText = token.getText(); 46 | // int ruleNum = token.getType(); 47 | // int lineNum = token.getLine(); 48 | // if (ruleNum == 34) { 49 | // if (tokenText.startsWith("0x") || tokenText.startsWith("0X")) { 50 | // tokenText = String.valueOf(Integer.parseInt(tokenText.substring(2), 16)); 51 | // } else if (tokenText.startsWith("0")) { 52 | // tokenText = String.valueOf(Integer.parseInt(tokenText, 8)); 53 | // } 54 | // } 55 | // 56 | //// System.err.printf("%s %s at Line %d.\n", ruleNames[ruleNum - 1], tokenText, lineNum); 57 | // } 58 | 59 | return sysYLexer; 60 | } 61 | } 62 | ``` 63 | 64 | 笔者和助教沟通后，找到了问题所在：`sysYLexer.getAllTokens()` 方法分析了所有词法单元后指针移动到了最后，再调用词法单元时只能从 `` 处开始读取。 -------------------------------------------------------------------------------- /docus/lab3.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab3 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. 类型检查 8 | 2. 重命名 9 | 10 | ## 实验设计 11 | 12 | 笔者参考老师上课的演示代码和助教在文档中的提示，做出如下类设计。该设计采取了依赖倒置原则。 13 | 14 | ![](images/image-20221219201711996.png) 15 | 16 | 在实现功能方面，笔者采用了如下思路： 17 | 18 | 1. 通过 `Visitor` 对语法树进行遍历，遍历过程中输出语义错误； 19 | 2. 在 `visitTerminal` 方法中，对每个 `Symbol` 记录变量名、函数名的出现位置，并存储待输出语法树内容； 20 | 3. 如果语法树中无语义错误，则输出语法树的内容，输出过程中对待重命名的变量、函数进行重命名。 21 | 22 | 整个过程总共遍历语法树一遍。 23 | 24 | ## 实验困难 25 | 26 | 实验主要困难在于上述设计，特别是对 `getLValType`，`getExpType` 和 `getCondType` 等递归方法的独立设计。 27 | 28 | 在此以 `getExpType` 为例给出代码： 29 | 30 | ```java 31 | private Type getExpType(SysYParser.ExpContext ctx) { 32 | if (ctx.IDENT() != null) { // IDENT L_PAREN funcRParams? R_PAREN 33 | String funcName = ctx.IDENT().getText(); 34 | Symbol symbol = currentScope.resolve(funcName); 35 | if (symbol != null && symbol.getType() instanceof FunctionType) { 36 | FunctionType functionType = (FunctionType) currentScope.resolve(funcName).getType(); 37 | ArrayList paramsType = functionType.getParamsType(), argsType = new ArrayList<>(); 38 | if (ctx.funcRParams() != null) { 39 | for (SysYParser.ParamContext paramContext : ctx.funcRParams().param()) { 40 | argsType.add(getExpType(paramContext.exp())); 41 | } 42 | } 43 | if (paramsType.equals(argsType)) { 44 | return functionType.getRetType(); 45 | } 46 | } 47 | } else if (ctx.L_PAREN() != null) { // L_PAREN exp R_PAREN 48 | return getExpType(ctx.exp(0)); 49 | } else if (ctx.unaryOp() != null) { // unaryOp exp 50 | return getExpType(ctx.exp(0)); 51 | } else if (ctx.lVal() != null) { // lVal 52 | return getLValType(ctx.lVal()); 53 | } else if (ctx.number() != null) { // number 54 | return new BasicTypeSymbol("int"); 55 | } else if (ctx.MUL() != null || ctx.DIV() != null || ctx.MOD() != null || ctx.PLUS() != null || ctx.MINUS() != null) { 56 | Type op1Type = getExpType(ctx.exp(0)); 57 | Type op2Type = getExpType(ctx.exp(1)); 58 | if (op1Type.toString().equals("int") && op2Type.toString().equals("int")) { 59 | return op1Type; 60 | } 61 | } 62 | return new BasicTypeSymbol("noType"); 63 | } 64 | ``` 65 | 66 | 该方法用于计算某个 `ExpContext` 的类型，主要用于判断该表达式内部是否有语义错误和类型不兼容。利用递归的思想，笔者还设计了 `getLValType` 和 `getCondType`，分别用来计算左值的类型和条件子句的类型及其合法性。 -------------------------------------------------------------------------------- /docus/lab4.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab4 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. 翻译主函数的定义为中间代码 8 | 1. 翻译返回语句为中间代码 9 | 1. 计算整形字面常量表达式并翻译为中间代码 10 | 11 | ## 实验设计 12 | 13 | ```java 14 | @Override 15 | public LLVMValueRef visitFuncDef(SysYParser.FuncDefContext ctx) { 16 | LLVMTypeRef functionType = LLVMFunctionType(i32Type, LLVMVoidType(), 0, 0); 17 | String functionName = ctx.IDENT().getText(); 18 | LLVMValueRef function = LLVMAddFunction(module, functionName, functionType); 19 | LLVMBasicBlockRef mainEntry = LLVMAppendBasicBlock(function, "mainEntry"); 20 | LLVMPositionBuilderAtEnd(builder, mainEntry); 21 | super.visitFuncDef(ctx); 22 | 23 | return function; 24 | } 25 | ``` 26 | 27 | 笔者按照实验文档设计了 `visitFuncDef` 方法，并根据语法规则设计了 `visitUnaryExp, visitParenExp, visitAddExp, visitMulExp, visitReturnStmt` 等方法。 28 | 29 | ## 实验困难 30 | 31 | 笔者初始设计方案是将整形字面常量取值并在 java 中计算表达式求值，但该方案在 OJ 上仅得到了 1300 分（满分 3100）。 32 | 33 | 修改为调用 `LLVMBuildSDiv` 等 API 计算代替算术计算后得到了满分。 34 | 35 | ```java 36 | @Override 37 | public LLVMValueRef visitMulExp(SysYParser.MulExpContext ctx) { 38 | LLVMValueRef valueRef1 = visit(ctx.exp(0)); 39 | LLVMValueRef valueRef2 = visit(ctx.exp(1)); 40 | if (ctx.MUL() != null) { 41 | return LLVMBuildMul(builder, valueRef1, valueRef2, "tmp_"); 42 | } else if (ctx.DIV() != null) { 43 | return LLVMBuildSDiv(builder, valueRef1, valueRef2, "tmp_"); 44 | } else { 45 | return LLVMBuildSRem(builder, valueRef1, valueRef2, "tmp_"); 46 | } 47 | } 48 | ``` 49 | 50 | -------------------------------------------------------------------------------- /docus/lab4及后续实验环境搭建.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/EagleBear2002/Compiler-Lab/3c31797ca142ffc5116fc77f51d1477f1c9433ba/docus/lab4及后续实验环境搭建.pdf -------------------------------------------------------------------------------- /docus/lab5.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab5 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. 函数定义与调用 8 | 1. 局部变量 9 | 10 | ## 实验设计 11 | 12 | 本次实验参照助教在文档中的提示，对符号表做了如下设计。注意本次实验中符号表不再依赖 `Symbol` 和 `Type` 包，而是直接存储 `String` 对 `LLVMValueRef` 的映射。 13 | 14 | ![](lab5/Lab5-Scope-1672913283336-4.png) 15 | 16 | 本次实验重新设计了 `LLVMVisitor` 类。 17 | 18 | ## 实验困难 19 | 20 | 试验过程中笔者通过和王星云同学交流掌握了部分 API 的使用方法。笔者向助教求助解决了 `expected instruction opcode` 的测试用例报错问题。 21 | -------------------------------------------------------------------------------- /docus/lab5/Lab5-Scope-1672913283336-4.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/EagleBear2002/Compiler-Lab/3c31797ca142ffc5116fc77f51d1477f1c9433ba/docus/lab5/Lab5-Scope-1672913283336-4.png -------------------------------------------------------------------------------- /docus/lab6.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab6 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. 全局变量声明和使用 8 | 1. 条件语句 9 | 10 | ## 实验设计 11 | 12 | 本次实验重新设计了 `LLVMVisitor` 类，其中全局变量相关内容主要是对 `visitVarDecl` 方法的修改。 13 | 14 | ## 实验困难 15 | 16 | 笔者实验过程中被三个困难的测试用例，报错信息如下： 17 | 18 | ``` 19 | hardtest1.sy：0（Aborted (core dumped) ） 20 | hardtest2.sy：0（Aborted (core dumped) ） 21 | hardtest3.sy：0（Aborted (core dumped) ） 22 | ``` 23 | 24 | 和顾龙助教沟通后，构建了引发错误的测试用例： 25 | 26 | ``` 27 | int a[10] = {}; 28 | 29 | int f(int a) { 30 | return 0; 31 | } 32 | 33 | int main() { 34 | a[1] = 1; 35 | return 0; 36 | } 37 | ``` 38 | 39 | 通过输出日志发现，函数参数 `a` 被定义在了全局作用域内，这是 `visitFuncDef` 方法当中的疏忽所致，修复了该 bug 后完成了本次实验。 40 | -------------------------------------------------------------------------------- /docus/lab7.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab7 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. `while` 循环 8 | 1. 循环控制 9 | 10 | ## 实验设计 11 | 12 | 本次实验新增了 `visitWhileStmt` 等方法，使用栈属性维护当前最内层的循环对应的 `block`。核心代码如下： 13 | 14 | ```java 15 | @Override 16 | public LLVMValueRef visitWhileStmt(SysYParser.WhileStmtContext ctx) { 17 | LLVMBasicBlockRef whileCondition = LLVMAppendBasicBlock(currentFunction, "whileCondition"); 18 | LLVMBasicBlockRef whileBody = LLVMAppendBasicBlock(currentFunction, "whileBody"); 19 | LLVMBasicBlockRef afterWhile = LLVMAppendBasicBlock(currentFunction, "afterWhile"); 20 | 21 | LLVMBuildBr(builder, whileCondition); 22 | 23 | LLVMPositionBuilderAtEnd(builder, whileCondition); 24 | LLVMValueRef condVal = this.visit(ctx.cond()); 25 | LLVMValueRef cmpResult = LLVMBuildICmp(builder, LLVMIntNE, zero, condVal, "cmp_result"); 26 | LLVMBuildCondBr(builder, cmpResult, whileBody, afterWhile); 27 | 28 | LLVMPositionBuilderAtEnd(builder, whileBody); 29 | whileConditionStack.push(whileCondition); 30 | afterWhileStack.push(afterWhile); 31 | this.visit(ctx.stmt()); 32 | LLVMBuildBr(builder, whileCondition); 33 | whileConditionStack.pop(); 34 | afterWhileStack.pop(); 35 | LLVMBuildBr(builder, afterWhile); 36 | 37 | LLVMPositionBuilderAtEnd(builder, afterWhile); 38 | return null; 39 | } 40 | 41 | @Override 42 | public LLVMValueRef visitBreakStmt(SysYParser.BreakStmtContext ctx) { 43 | return LLVMBuildBr(builder, afterWhileStack.peek()); 44 | } 45 | 46 | @Override 47 | public LLVMValueRef visitContinueStmt(SysYParser.ContinueStmtContext ctx) { 48 | return LLVMBuildBr(builder, whileConditionStack.peek()); 49 | } 50 | ``` 51 | 52 | ## 实验困难 53 | 54 | 笔者实验过程中遇到了 OJ 的报错： 55 | 56 | ``` 57 | lli-13: lli: out.ir:67:3: error: instruction expected to be numbered '%3' %2 = call i32 @get_one(i32 0) ^ 58 | ``` 59 | 60 | 笔者分析发现 OJ 会检查以纯数字命名的变量。在代码中，只有函数调用的返回值用纯数字作为序号命名，且 OJ 还要求返回值为空类型的函数调用不应当有变量名。 61 | 62 | 笔者根据函数的返回值类型生成变量名： 63 | 64 | ```java 65 | if (retTypeMap.get(functionName).equals("void")) { 66 | functionName = ""; 67 | } 68 | return LLVMBuildCall(builder, function, args, argsCount, functionName); 69 | ``` 70 | 71 | -------------------------------------------------------------------------------- /docus/lab8.md: -------------------------------------------------------------------------------- 1 | # 编译原理 Lab8 实验报告 2 | 3 | ## 实现功能 4 | 5 | 本次实验完成了以下功能： 6 | 7 | 1. 一维数组作为函数参数 8 | 9 | ## 实验设计 10 | 11 | 本次实验主要修改了 `visitLVal()` 和 `visitLValExp()` 等方法。 12 | 13 | ```java 14 | @Override 15 | public LLVMValueRef visitLValExp(SysYParser.LValExpContext ctx) { 16 | LLVMValueRef lValPointer = this.visitLVal(ctx.lVal()); 17 | if (arrayAddr) { 18 | arrayAddr = false; 19 | return lValPointer; 20 | } 21 | return LLVMBuildLoad(builder, lValPointer, ctx.lVal().getText()); 22 | } 23 | 24 | @Override 25 | public LLVMValueRef visitLVal(SysYParser.LValContext ctx) { 26 | String lValName = ctx.IDENT().getText(); 27 | LLVMValueRef varPointer = currentScope.resolve(lValName); 28 | LLVMTypeRef varType = currentScope.getType(lValName); 29 | if (varType.equals(i32Type)) { 30 | return varPointer; 31 | } else if (varType.equals(intPointerType)) { 32 | if (ctx.exp().size() > 0) { 33 | LLVMValueRef[] arrayPointer = new LLVMValueRef[1]; 34 | arrayPointer[0] = this.visit(ctx.exp(0)); 35 | PointerPointer indexPointer = new PointerPointer<>(arrayPointer); 36 | LLVMValueRef pointer = LLVMBuildLoad(builder, varPointer, lValName); 37 | return LLVMBuildGEP(builder, pointer, indexPointer, 1, "&" + lValName); 38 | } else { 39 | return varPointer; 40 | } 41 | } else { 42 | LLVMValueRef[] arrayPointer = new LLVMValueRef[2]; 43 | arrayPointer[0] = zero; 44 | if (ctx.exp().size() > 0) { 45 | arrayPointer[1] = this.visit(ctx.exp(0)); 46 | } else { 47 | arrayAddr = true; 48 | arrayPointer[1] = zero; 49 | } 50 | PointerPointer indexPointer = new PointerPointer<>(arrayPointer); 51 | return LLVMBuildGEP(builder, varPointer, indexPointer, 2, "&" + lValName); 52 | } 53 | } 54 | ``` 55 | 56 | ## 实验困难 57 | 58 | 笔者完成实验代码编写后，遇到了 OJ 的报错： 59 | 60 | ``` 61 | lli-13: lli: out.ir:44:1: error: expected instruction opcode } ^ 62 | ``` 63 | 64 | 笔者与同学交流发现，在返回值为 `int` 的函数末尾添加 `ret i32 0` 语句即可通过 OJ 的所有测试用例。笔者推测测试用例中存在没有正确返回返回值的函数。 65 | 66 | -------------------------------------------------------------------------------- /nohup.out: -------------------------------------------------------------------------------- 1 | Error type B at Line 5: mismatched input '' expecting {'const', 'int', 'void'} 2 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 4.0.0 6 | 7 | groupId 8 | Lab 9 | 1.0-SNAPSHOT 10 | 11 | 12 | 15 13 | 15 14 | UTF-8 15 | 16 | 17 | 18 | 19 | 20 | org.bytedeco 21 | llvm-platform 22 | 13.0.1-1.5.7 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /src/Main.java: -------------------------------------------------------------------------------- 1 | import org.antlr.v4.runtime.CharStream; 2 | import org.antlr.v4.runtime.CharStreams; 3 | import org.antlr.v4.runtime.CommonTokenStream; 4 | import org.antlr.v4.runtime.tree.ParseTree; 5 | import org.bytedeco.javacpp.BytePointer; 6 | 7 | import static org.bytedeco.llvm.global.LLVM.*; 8 | 9 | import java.io.IOException; 10 | 11 | public class Main { 12 | 13 | public static SysYLexer lexer(String sourcePath) throws IOException { 14 | CharStream input = CharStreams.fromFileName(sourcePath); 15 | return new SysYLexer(input); 16 | } 17 | 18 | public static SysYParser parser(SysYLexer sysYLexer) { 19 | CommonTokenStream tokens = new CommonTokenStream(sysYLexer); 20 | return new SysYParser(tokens); 21 | } 22 | 23 | public static void main(String[] args) throws IOException { 24 | if (args.length < 2) { 25 | System.err.println("input path is required"); 26 | return; 27 | } 28 | 29 | String srcPath = args[0]; 30 | String destPath = args[1]; 31 | SysYLexer sysYLexer = lexer(srcPath); 32 | SysYParser sysYParser = parser(sysYLexer); 33 | ParseTree tree = sysYParser.program(); 34 | 35 | LLVMIRVisitor llvmirVisitor = new LLVMIRVisitor(); 36 | llvmirVisitor.visit(tree); 37 | 38 | final BytePointer error = new BytePointer(); 39 | if (LLVMPrintModuleToFile(llvmirVisitor.getModule(), destPath, error) != 0) { // moudle 是你自定义的 LLVMModuleRef 对象 40 | LLVMDisposeMessage(error); 41 | } 42 | } 43 | } 44 | -------------------------------------------------------------------------------- /src/Scope/BaseScope.java: -------------------------------------------------------------------------------- 1 | package Scope;//import com.google.common.base.MoreObjects; 2 | 3 | import org.bytedeco.llvm.LLVM.LLVMTypeRef; 4 | import org.bytedeco.llvm.LLVM.LLVMValueRef; 5 | 6 | import java.util.LinkedHashMap; 7 | import java.util.Map; 8 | 9 | public class BaseScope implements Scope { 10 | private final Scope enclosingScope; 11 | private final Map valueRefs = new LinkedHashMap<>(); 12 | private final Map valueTypes = new LinkedHashMap<>(); 13 | private String scopeName; 14 | 15 | public BaseScope(String name, Scope enclosingScope) { 16 | this.scopeName = name; 17 | this.enclosingScope = enclosingScope; 18 | } 19 | 20 | @Override 21 | public String getScopeName() { 22 | return this.scopeName; 23 | } 24 | 25 | @Override 26 | public void setScopeName(String scopeName) { 27 | this.scopeName = scopeName; 28 | } 29 | 30 | @Override 31 | public Scope getEnclosingScope() { 32 | return this.enclosingScope; 33 | } 34 | 35 | public Map getValueRef() { 36 | return this.valueRefs; 37 | } 38 | 39 | @Override 40 | public void define(String name, LLVMValueRef llvmValueRef, LLVMTypeRef llvmTypeRef) { 41 | valueRefs.put(name, llvmValueRef); 42 | valueTypes.put(name, llvmTypeRef); 43 | // System.out.println(this.scopeName + "+(" + name + ", " + llvmValueRef + "," + llvmTypeRef + ")"); 44 | } 45 | 46 | @Override 47 | public LLVMValueRef resolve(String name) { 48 | LLVMValueRef symbol = valueRefs.get(name); 49 | if (symbol != null) { 50 | return symbol; 51 | } 52 | 53 | if (enclosingScope != null) { 54 | return enclosingScope.resolve(name); 55 | } 56 | 57 | // System.out.println("can not resolve: " + name); 58 | return null; 59 | } 60 | 61 | @Override 62 | public LLVMTypeRef getType(String name) { 63 | LLVMTypeRef typeRef = valueTypes.get(name); 64 | if (typeRef != null) { 65 | return typeRef; 66 | } 67 | 68 | if (enclosingScope != null) { 69 | return enclosingScope.getType(name); 70 | } 71 | 72 | return null; 73 | } 74 | } 75 | -------------------------------------------------------------------------------- /src/Scope/FunctionScope.java: -------------------------------------------------------------------------------- 1 | package Scope; 2 | 3 | import org.antlr.v4.runtime.misc.Pair; 4 | 5 | import Symbol.*; 6 | import org.bytedeco.llvm.LLVM.LLVMTypeRef; 7 | 8 | import java.util.ArrayList; 9 | import java.util.List; 10 | 11 | public class FunctionScope extends BaseScope implements Symbol { 12 | public LLVMTypeRef type; 13 | public List> usagePosition; 14 | 15 | @Override 16 | public LLVMTypeRef getType() { 17 | return type; 18 | } 19 | 20 | public FunctionScope(String name, Scope enclosingScope, LLVMTypeRef type) { 21 | super(name, enclosingScope); 22 | this.usagePosition = new ArrayList<>(); 23 | this.type = type; 24 | } 25 | 26 | @Override 27 | public String getName() { 28 | return null; 29 | } 30 | 31 | public void addUsage(int lineNo, int columnNo) { 32 | usagePosition.add(new Pair<>(lineNo, columnNo)); 33 | } 34 | 35 | public boolean findUsage(int lineNo, int columnNo) { 36 | return usagePosition.contains(new Pair<>(lineNo, columnNo)); 37 | } 38 | } -------------------------------------------------------------------------------- /src/Scope/GlobalScope.java: -------------------------------------------------------------------------------- 1 | package Scope; 2 | 3 | import Symbol.BasicTypeSymbol; 4 | 5 | public class GlobalScope extends BaseScope { 6 | public GlobalScope(Scope enclosingScope) { 7 | super("Scope.Scope.GlobalScope", enclosingScope); 8 | } 9 | } -------------------------------------------------------------------------------- /src/Scope/LocalScope.java: -------------------------------------------------------------------------------- 1 | package Scope; 2 | 3 | public class LocalScope extends BaseScope { 4 | public LocalScope(Scope enclosingScope) { 5 | super("Scope.Scope.LocalScope", enclosingScope); 6 | } 7 | } 8 | -------------------------------------------------------------------------------- /src/Scope/Scope.java: -------------------------------------------------------------------------------- 1 | package Scope; 2 | 3 | import java.util.Map; 4 | 5 | import org.bytedeco.llvm.LLVM.LLVMTypeRef; 6 | import org.bytedeco.llvm.LLVM.LLVMValueRef; 7 | 8 | public interface Scope { 9 | String getScopeName(); 10 | 11 | void setScopeName(String scopeName); 12 | 13 | Scope getEnclosingScope(); 14 | 15 | Map getValueRef(); 16 | 17 | void define(String name, LLVMValueRef llvmValueRef, LLVMTypeRef llvmTypeRef); 18 | 19 | LLVMValueRef resolve(String name); 20 | 21 | LLVMTypeRef getType(String name); 22 | } 23 | -------------------------------------------------------------------------------- /src/Symbol/BaseSymbol.java: -------------------------------------------------------------------------------- 1 | package Symbol;//import com.google.common.base.MoreObjects; 2 | 3 | import org.antlr.v4.runtime.misc.Pair; 4 | import org.bytedeco.llvm.LLVM.LLVMTypeRef; 5 | import org.bytedeco.llvm.LLVM.LLVMValueRef; 6 | 7 | import java.util.ArrayList; 8 | import java.util.List; 9 | public class BaseSymbol implements Symbol { 10 | final String name; 11 | final LLVMTypeRef type; 12 | public List> usagePosition; 13 | 14 | public BaseSymbol(String name, LLVMTypeRef type) { 15 | this.name = name; 16 | this.type = type; 17 | this.usagePosition = new ArrayList<>(); 18 | } 19 | 20 | public String getName() { 21 | return name; 22 | } 23 | 24 | public LLVMTypeRef getType() { 25 | return type; 26 | } 27 | 28 | public void addUsage(int lineNo, int columnNo) { 29 | usagePosition.add(new Pair(lineNo, columnNo)); 30 | } 31 | 32 | public boolean findUsage(int lineNo, int columnNo) { 33 | boolean ret = usagePosition.contains(new Pair(lineNo, columnNo)); 34 | return ret; 35 | } 36 | } -------------------------------------------------------------------------------- /src/Symbol/BasicTypeSymbol.java: -------------------------------------------------------------------------------- 1 | package Symbol; 2 | import Type.*; 3 | 4 | public class BasicTypeSymbol extends BaseSymbol implements Type { 5 | public BasicTypeSymbol(String name) { 6 | super(name, null); 7 | } 8 | 9 | @Override 10 | public String toString() { 11 | return name; 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /src/Symbol/Symbol.java: -------------------------------------------------------------------------------- 1 | package Symbol; 2 | 3 | import org.antlr.v4.runtime.misc.Pair; 4 | import org.bytedeco.llvm.LLVM.LLVMTypeRef; 5 | import org.bytedeco.llvm.LLVM.LLVMValueRef; 6 | 7 | import java.util.ArrayList; 8 | import java.util.List; 9 | 10 | public interface Symbol { 11 | 12 | String getName(); 13 | 14 | void addUsage(int lineNo, int columnNo); 15 | 16 | boolean findUsage(int lineNo, int columnNo); 17 | 18 | LLVMTypeRef getType(); 19 | } 20 | -------------------------------------------------------------------------------- /src/Symbol/VariableSymbol.java: -------------------------------------------------------------------------------- 1 | package Symbol; 2 | 3 | import Symbol.BaseSymbol; 4 | import org.bytedeco.llvm.LLVM.LLVMTypeRef; 5 | import org.bytedeco.llvm.LLVM.LLVMValueRef; 6 | 7 | public class VariableSymbol extends BaseSymbol { 8 | public VariableSymbol(String name, LLVMTypeRef type) { 9 | super(name, type); 10 | } 11 | } 12 | -------------------------------------------------------------------------------- /src/SysYLexer.g4: -------------------------------------------------------------------------------- 1 | lexer grammar SysYLexer; 2 | 3 | //expr: expr ('*' | '/') expr | expr ('+' | '-') expr | IDENT | INT; 4 | CONST : 'const'; 5 | INT : 'int'; 6 | VOID : 'void'; 7 | IF : 'if'; 8 | ELSE : 'else'; 9 | WHILE : 'while'; 10 | BREAK : 'break'; 11 | CONTINUE : 'continue'; 12 | RETURN : 'return'; 13 | 14 | PLUS : '+'; 15 | MINUS : '-'; 16 | MUL : '*'; 17 | DIV : '/'; 18 | MOD : '%'; 19 | ASSIGN : '='; 20 | EQ : '=='; 21 | NEQ : '!='; 22 | LT : '<'; 23 | GT : '>'; 24 | LE : '<='; 25 | GE : '>='; 26 | NOT : '!'; 27 | AND : '&&'; 28 | OR : '||'; 29 | 30 | L_PAREN : '('; 31 | R_PAREN : ')'; 32 | L_BRACE : '{'; 33 | R_BRACE : '}'; 34 | L_BRACKT : '['; 35 | R_BRACKT : ']'; 36 | COMMA : ','; 37 | SEMICOLON : ';'; 38 | 39 | IDENT: (LETTER | '_') (LETTER | DIGIT | '_')* ; 40 | 41 | INTEGR_CONST: OCTAL | HEXADECIMAL | DECIMAL; 42 | fragment DECIMAL: '0' | [1-9] [0-9]*; 43 | fragment OCTAL: '0' [0-7]+; 44 | fragment HEXADECIMAL: ('0x' | '0X') (DIGIT | [a-fA-F])+ ; 45 | WS: [ \t\r\n]+ -> skip; 46 | SL_COMMENT: '//' .*? '\n' -> skip; 47 | ML_COMMENT: '/*' .*? '*/' -> skip; 48 | fragment LETTER: [a-zA-Z]; 49 | fragment DIGIT: [0-9]; -------------------------------------------------------------------------------- /src/SysYLexer.interp: -------------------------------------------------------------------------------- 1 | token literal names: 2 | null 3 | 'const' 4 | 'int' 5 | 'void' 6 | 'if' 7 | 'else' 8 | 'while' 9 | 'break' 10 | 'continue' 11 | 'return' 12 | '+' 13 | '-' 14 | '*' 15 | '/' 16 | '%' 17 | '=' 18 | '==' 19 | '!=' 20 | '<' 21 | '>' 22 | '<=' 23 | '>=' 24 | '!' 25 | '&&' 26 | '||' 27 | '(' 28 | ')' 29 | '{' 30 | '}' 31 | '[' 32 | ']' 33 | ',' 34 | ';' 35 | null 36 | null 37 | null 38 | null 39 | null 40 | 41 | token symbolic names: 42 | null 43 | CONST 44 | INT 45 | VOID 46 | IF 47 | ELSE 48 | WHILE 49 | BREAK 50 | CONTINUE 51 | RETURN 52 | PLUS 53 | MINUS 54 | MUL 55 | DIV 56 | MOD 57 | ASSIGN 58 | EQ 59 | NEQ 60 | LT 61 | GT 62 | LE 63 | GE 64 | NOT 65 | AND 66 | OR 67 | L_PAREN 68 | R_PAREN 69 | L_BRACE 70 | R_BRACE 71 | L_BRACKT 72 | R_BRACKT 73 | COMMA 74 | SEMICOLON 75 | IDENT 76 | INTEGR_CONST 77 | WS 78 | SL_COMMENT 79 | ML_COMMENT 80 | 81 | rule names: 82 | CONST 83 | INT 84 | VOID 85 | IF 86 | ELSE 87 | WHILE 88 | BREAK 89 | CONTINUE 90 | RETURN 91 | PLUS 92 | MINUS 93 | MUL 94 | DIV 95 | MOD 96 | ASSIGN 97 | EQ 98 | NEQ 99 | LT 100 | GT 101 | LE 102 | GE 103 | NOT 104 | AND 105 | OR 106 | L_PAREN 107 | R_PAREN 108 | L_BRACE 109 | R_BRACE 110 | L_BRACKT 111 | R_BRACKT 112 | COMMA 113 | SEMICOLON 114 | IDENT 115 | INTEGR_CONST 116 | DECIMAL 117 | OCTAL 118 | HEXADECIMAL 119 | WS 120 | SL_COMMENT 121 | ML_COMMENT 122 | LETTER 123 | DIGIT 124 | 125 | channel names: 126 | DEFAULT_TOKEN_CHANNEL 127 | HIDDEN 128 | 129 | mode names: 130 | DEFAULT_MODE 131 | 132 | atn: 133 | [3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 2, 39, 273, 8, 1, 4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7, 9, 7, 4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12, 4, 13, 9, 13, 4, 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183, 7, 93, 2, 2, 183, 60, 3, 2, 2, 2, 184, 185, 7, 95, 2, 2, 185, 62, 3, 2, 2, 2, 186, 187, 7, 46, 2, 2, 187, 64, 3, 2, 2, 2, 188, 189, 7, 61, 2, 2, 189, 66, 3, 2, 2, 2, 190, 193, 5, 83, 42, 2, 191, 193, 7, 97, 2, 2, 192, 190, 3, 2, 2, 2, 192, 191, 3, 2, 2, 2, 193, 199, 3, 2, 2, 2, 194, 198, 5, 83, 42, 2, 195, 198, 5, 85, 43, 2, 196, 198, 7, 97, 2, 2, 197, 194, 3, 2, 2, 2, 197, 195, 3, 2, 2, 2, 197, 196, 3, 2, 2, 2, 198, 201, 3, 2, 2, 2, 199, 197, 3, 2, 2, 2, 199, 200, 3, 2, 2, 2, 200, 68, 3, 2, 2, 2, 201, 199, 3, 2, 2, 2, 202, 206, 5, 73, 37, 2, 203, 206, 5, 75, 38, 2, 204, 206, 5, 71, 36, 2, 205, 202, 3, 2, 2, 2, 205, 203, 3, 2, 2, 2, 205, 204, 3, 2, 2, 2, 206, 70, 3, 2, 2, 2, 207, 216, 7, 50, 2, 2, 208, 212, 9, 2, 2, 2, 209, 211, 9, 3, 2, 2, 210, 209, 3, 2, 2, 2, 211, 214, 3, 2, 2, 2, 212, 210, 3, 2, 2, 2, 212, 213, 3, 2, 2, 2, 213, 216, 3, 2, 2, 2, 214, 212, 3, 2, 2, 2, 215, 207, 3, 2, 2, 2, 215, 208, 3, 2, 2, 2, 216, 72, 3, 2, 2, 2, 217, 219, 7, 50, 2, 2, 218, 220, 9, 4, 2, 2, 219, 218, 3, 2, 2, 2, 220, 221, 3, 2, 2, 2, 221, 219, 3, 2, 2, 2, 221, 222, 3, 2, 2, 2, 222, 74, 3, 2, 2, 2, 223, 224, 7, 50, 2, 2, 224, 228, 7, 122, 2, 2, 225, 226, 7, 50, 2, 2, 226, 228, 7, 90, 2, 2, 227, 223, 3, 2, 2, 2, 227, 225, 3, 2, 2, 2, 228, 231, 3, 2, 2, 2, 229, 232, 5, 85, 43, 2, 230, 232, 9, 5, 2, 2, 231, 229, 3, 2, 2, 2, 231, 230, 3, 2, 2, 2, 232, 233, 3, 2, 2, 2, 233, 231, 3, 2, 2, 2, 233, 234, 3, 2, 2, 2, 234, 76, 3, 2, 2, 2, 235, 237, 9, 6, 2, 2, 236, 235, 3, 2, 2, 2, 237, 238, 3, 2, 2, 2, 238, 236, 3, 2, 2, 2, 238, 239, 3, 2, 2, 2, 239, 240, 3, 2, 2, 2, 240, 241, 8, 39, 2, 2, 241, 78, 3, 2, 2, 2, 242, 243, 7, 49, 2, 2, 243, 244, 7, 49, 2, 2, 244, 248, 3, 2, 2, 2, 245, 247, 11, 2, 2, 2, 246, 245, 3, 2, 2, 2, 247, 250, 3, 2, 2, 2, 248, 249, 3, 2, 2, 2, 248, 246, 3, 2, 2, 2, 249, 251, 3, 2, 2, 2, 250, 248, 3, 2, 2, 2, 251, 252, 7, 12, 2, 2, 252, 253, 3, 2, 2, 2, 253, 254, 8, 40, 2, 2, 254, 80, 3, 2, 2, 2, 255, 256, 7, 49, 2, 2, 256, 257, 7, 44, 2, 2, 257, 261, 3, 2, 2, 2, 258, 260, 11, 2, 2, 2, 259, 258, 3, 2, 2, 2, 260, 263, 3, 2, 2, 2, 261, 262, 3, 2, 2, 2, 261, 259, 3, 2, 2, 2, 262, 264, 3, 2, 2, 2, 263, 261, 3, 2, 2, 2, 264, 265, 7, 44, 2, 2, 265, 266, 7, 49, 2, 2, 266, 267, 3, 2, 2, 2, 267, 268, 8, 41, 2, 2, 268, 82, 3, 2, 2, 2, 269, 270, 9, 7, 2, 2, 270, 84, 3, 2, 2, 2, 271, 272, 9, 3, 2, 2, 272, 86, 3, 2, 2, 2, 16, 2, 192, 197, 199, 205, 212, 215, 221, 227, 231, 233, 238, 248, 261, 3, 8, 2, 2] -------------------------------------------------------------------------------- /src/SysYLexer.java: -------------------------------------------------------------------------------- 1 | // Generated from ./src/SysYLexer.g4 by ANTLR 4.9.1 2 | import org.antlr.v4.runtime.Lexer; 3 | import org.antlr.v4.runtime.CharStream; 4 | import org.antlr.v4.runtime.Token; 5 | import org.antlr.v4.runtime.TokenStream; 6 | import org.antlr.v4.runtime.*; 7 | import org.antlr.v4.runtime.atn.*; 8 | import org.antlr.v4.runtime.dfa.DFA; 9 | import org.antlr.v4.runtime.misc.*; 10 | 11 | @SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"}) 12 | public class SysYLexer extends Lexer { 13 | static { RuntimeMetaData.checkVersion("4.9.1", RuntimeMetaData.VERSION); } 14 | 15 | protected static final DFA[] _decisionToDFA; 16 | protected static final PredictionContextCache _sharedContextCache = 17 | new PredictionContextCache(); 18 | public static final int 19 | CONST=1, INT=2, VOID=3, IF=4, ELSE=5, WHILE=6, BREAK=7, CONTINUE=8, RETURN=9, 20 | PLUS=10, MINUS=11, MUL=12, DIV=13, MOD=14, ASSIGN=15, EQ=16, NEQ=17, LT=18, 21 | GT=19, LE=20, GE=21, NOT=22, AND=23, OR=24, L_PAREN=25, R_PAREN=26, L_BRACE=27, 22 | R_BRACE=28, L_BRACKT=29, R_BRACKT=30, COMMA=31, SEMICOLON=32, IDENT=33, 23 | INTEGR_CONST=34, WS=35, SL_COMMENT=36, ML_COMMENT=37; 24 | public static String[] channelNames = { 25 | "DEFAULT_TOKEN_CHANNEL", "HIDDEN" 26 | }; 27 | 28 | public static String[] modeNames = { 29 | "DEFAULT_MODE" 30 | }; 31 | 32 | private static String[] makeRuleNames() { 33 | return new String[] { 34 | "CONST", "INT", "VOID", "IF", "ELSE", "WHILE", "BREAK", "CONTINUE", "RETURN", 35 | "PLUS", "MINUS", "MUL", "DIV", "MOD", "ASSIGN", "EQ", "NEQ", "LT", "GT", 36 | "LE", "GE", "NOT", "AND", "OR", "L_PAREN", "R_PAREN", "L_BRACE", "R_BRACE", 37 | "L_BRACKT", "R_BRACKT", "COMMA", "SEMICOLON", "IDENT", "INTEGR_CONST", 38 | "DECIMAL", "OCTAL", "HEXADECIMAL", "WS", "SL_COMMENT", "ML_COMMENT", 39 | "LETTER", "DIGIT" 40 | }; 41 | } 42 | public static final String[] ruleNames = makeRuleNames(); 43 | 44 | private static String[] makeLiteralNames() { 45 | return new String[] { 46 | null, "'const'", "'int'", "'void'", "'if'", "'else'", "'while'", "'break'", 47 | "'continue'", "'return'", "'+'", "'-'", "'*'", "'/'", "'%'", "'='", "'=='", 48 | "'!='", "'<'", "'>'", "'<='", "'>='", "'!'", "'&&'", "'||'", "'('", "')'", 49 | "'{'", "'}'", "'['", "']'", "','", "';'" 50 | }; 51 | } 52 | private static final String[] _LITERAL_NAMES = makeLiteralNames(); 53 | private static String[] makeSymbolicNames() { 54 | return new String[] { 55 | null, "CONST", "INT", "VOID", "IF", "ELSE", "WHILE", "BREAK", "CONTINUE", 56 | "RETURN", "PLUS", "MINUS", "MUL", "DIV", "MOD", "ASSIGN", "EQ", "NEQ", 57 | "LT", "GT", "LE", "GE", "NOT", "AND", "OR", "L_PAREN", "R_PAREN", "L_BRACE", 58 | "R_BRACE", "L_BRACKT", "R_BRACKT", "COMMA", "SEMICOLON", "IDENT", "INTEGR_CONST", 59 | "WS", "SL_COMMENT", "ML_COMMENT" 60 | }; 61 | } 62 | private static final String[] _SYMBOLIC_NAMES = makeSymbolicNames(); 63 | public static final Vocabulary VOCABULARY = new VocabularyImpl(_LITERAL_NAMES, _SYMBOLIC_NAMES); 64 | 65 | /** 66 | * @deprecated Use {@link #VOCABULARY} instead. 67 | */ 68 | @Deprecated 69 | public static final String[] tokenNames; 70 | static { 71 | tokenNames = new String[_SYMBOLIC_NAMES.length]; 72 | for (int i = 0; i < tokenNames.length; i++) { 73 | tokenNames[i] = VOCABULARY.getLiteralName(i); 74 | if (tokenNames[i] == null) { 75 | tokenNames[i] = VOCABULARY.getSymbolicName(i); 76 | } 77 | 78 | if (tokenNames[i] == null) { 79 | tokenNames[i] = ""; 80 | } 81 | } 82 | } 83 | 84 | @Override 85 | @Deprecated 86 | public String[] getTokenNames() { 87 | return tokenNames; 88 | } 89 | 90 | @Override 91 | 92 | public Vocabulary getVocabulary() { 93 | return VOCABULARY; 94 | } 95 | 96 | 97 | public SysYLexer(CharStream input) { 98 | super(input); 99 | _interp = new LexerATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache); 100 | } 101 | 102 | @Override 103 | public String getGrammarFileName() { return "SysYLexer.g4"; } 104 | 105 | @Override 106 | public String[] getRuleNames() { return ruleNames; } 107 | 108 | @Override 109 | public String getSerializedATN() { return _serializedATN; } 110 | 111 | @Override 112 | public String[] getChannelNames() { return channelNames; } 113 | 114 | @Override 115 | public String[] getModeNames() { return modeNames; } 116 | 117 | @Override 118 | public ATN getATN() { return _ATN; } 119 | 120 | public static final String _serializedATN = 121 | "\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\2\'\u0111\b\1\4\2\t"+ 122 | "\2\4\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\4\7\t\7\4\b\t\b\4\t\t\t\4\n\t\n\4\13"+ 123 | "\t\13\4\f\t\f\4\r\t\r\4\16\t\16\4\17\t\17\4\20\t\20\4\21\t\21\4\22\t\22"+ 124 | "\4\23\t\23\4\24\t\24\4\25\t\25\4\26\t\26\4\27\t\27\4\30\t\30\4\31\t\31"+ 125 | "\4\32\t\32\4\33\t\33\4\34\t\34\4\35\t\35\4\36\t\36\4\37\t\37\4 \t \4!"+ 126 | "\t!\4\"\t\"\4#\t#\4$\t$\4%\t%\4&\t&\4\'\t\'\4(\t(\4)\t)\4*\t*\4+\t+\3"+ 127 | "\2\3\2\3\2\3\2\3\2\3\2\3\3\3\3\3\3\3\3\3\4\3\4\3\4\3\4\3\4\3\5\3\5\3\5"+ 128 | "\3\6\3\6\3\6\3\6\3\6\3\7\3\7\3\7\3\7\3\7\3\7\3\b\3\b\3\b\3\b\3\b\3\b\3"+ 129 | "\t\3\t\3\t\3\t\3\t\3\t\3\t\3\t\3\t\3\n\3\n\3\n\3\n\3\n\3\n\3\n\3\13\3"+ 130 | "\13\3\f\3\f\3\r\3\r\3\16\3\16\3\17\3\17\3\20\3\20\3\21\3\21\3\21\3\22"+ 131 | "\3\22\3\22\3\23\3\23\3\24\3\24\3\25\3\25\3\25\3\26\3\26\3\26\3\27\3\27"+ 132 | "\3\30\3\30\3\30\3\31\3\31\3\31\3\32\3\32\3\33\3\33\3\34\3\34\3\35\3\35"+ 133 | "\3\36\3\36\3\37\3\37\3 \3 \3!\3!\3\"\3\"\5\"\u00c1\n\"\3\"\3\"\3\"\7\""+ 134 | "\u00c6\n\"\f\"\16\"\u00c9\13\"\3#\3#\3#\5#\u00ce\n#\3$\3$\3$\7$\u00d3"+ 135 | "\n$\f$\16$\u00d6\13$\5$\u00d8\n$\3%\3%\6%\u00dc\n%\r%\16%\u00dd\3&\3&"+ 136 | "\3&\3&\5&\u00e4\n&\3&\3&\6&\u00e8\n&\r&\16&\u00e9\3\'\6\'\u00ed\n\'\r"+ 137 | "\'\16\'\u00ee\3\'\3\'\3(\3(\3(\3(\7(\u00f7\n(\f(\16(\u00fa\13(\3(\3(\3"+ 138 | "(\3(\3)\3)\3)\3)\7)\u0104\n)\f)\16)\u0107\13)\3)\3)\3)\3)\3)\3*\3*\3+"+ 139 | "\3+\4\u00f8\u0105\2,\3\3\5\4\7\5\t\6\13\7\r\b\17\t\21\n\23\13\25\f\27"+ 140 | "\r\31\16\33\17\35\20\37\21!\22#\23%\24\'\25)\26+\27-\30/\31\61\32\63\33"+ 141 | "\65\34\67\359\36;\37= ?!A\"C#E$G\2I\2K\2M%O&Q\'S\2U\2\3\2\b\3\2\63;\3"+ 142 | "\2\62;\3\2\629\4\2CHch\5\2\13\f\17\17\"\"\4\2C\\c|\2\u011a\2\3\3\2\2\2"+ 143 | "\2\5\3\2\2\2\2\7\3\2\2\2\2\t\3\2\2\2\2\13\3\2\2\2\2\r\3\2\2\2\2\17\3\2"+ 144 | "\2\2\2\21\3\2\2\2\2\23\3\2\2\2\2\25\3\2\2\2\2\27\3\2\2\2\2\31\3\2\2\2"+ 145 | "\2\33\3\2\2\2\2\35\3\2\2\2\2\37\3\2\2\2\2!\3\2\2\2\2#\3\2\2\2\2%\3\2\2"+ 146 | "\2\2\'\3\2\2\2\2)\3\2\2\2\2+\3\2\2\2\2-\3\2\2\2\2/\3\2\2\2\2\61\3\2\2"+ 147 | "\2\2\63\3\2\2\2\2\65\3\2\2\2\2\67\3\2\2\2\29\3\2\2\2\2;\3\2\2\2\2=\3\2"+ 148 | "\2\2\2?\3\2\2\2\2A\3\2\2\2\2C\3\2\2\2\2E\3\2\2\2\2M\3\2\2\2\2O\3\2\2\2"+ 149 | "\2Q\3\2\2\2\3W\3\2\2\2\5]\3\2\2\2\7a\3\2\2\2\tf\3\2\2\2\13i\3\2\2\2\r"+ 150 | "n\3\2\2\2\17t\3\2\2\2\21z\3\2\2\2\23\u0083\3\2\2\2\25\u008a\3\2\2\2\27"+ 151 | "\u008c\3\2\2\2\31\u008e\3\2\2\2\33\u0090\3\2\2\2\35\u0092\3\2\2\2\37\u0094"+ 152 | "\3\2\2\2!\u0096\3\2\2\2#\u0099\3\2\2\2%\u009c\3\2\2\2\'\u009e\3\2\2\2"+ 153 | ")\u00a0\3\2\2\2+\u00a3\3\2\2\2-\u00a6\3\2\2\2/\u00a8\3\2\2\2\61\u00ab"+ 154 | "\3\2\2\2\63\u00ae\3\2\2\2\65\u00b0\3\2\2\2\67\u00b2\3\2\2\29\u00b4\3\2"+ 155 | "\2\2;\u00b6\3\2\2\2=\u00b8\3\2\2\2?\u00ba\3\2\2\2A\u00bc\3\2\2\2C\u00c0"+ 156 | "\3\2\2\2E\u00cd\3\2\2\2G\u00d7\3\2\2\2I\u00d9\3\2\2\2K\u00e3\3\2\2\2M"+ 157 | "\u00ec\3\2\2\2O\u00f2\3\2\2\2Q\u00ff\3\2\2\2S\u010d\3\2\2\2U\u010f\3\2"+ 158 | "\2\2WX\7e\2\2XY\7q\2\2YZ\7p\2\2Z[\7u\2\2[\\\7v\2\2\\\4\3\2\2\2]^\7k\2"+ 159 | "\2^_\7p\2\2_`\7v\2\2`\6\3\2\2\2ab\7x\2\2bc\7q\2\2cd\7k\2\2de\7f\2\2e\b"+ 160 | "\3\2\2\2fg\7k\2\2gh\7h\2\2h\n\3\2\2\2ij\7g\2\2jk\7n\2\2kl\7u\2\2lm\7g"+ 161 | "\2\2m\f\3\2\2\2no\7y\2\2op\7j\2\2pq\7k\2\2qr\7n\2\2rs\7g\2\2s\16\3\2\2"+ 162 | "\2tu\7d\2\2uv\7t\2\2vw\7g\2\2wx\7c\2\2xy\7m\2\2y\20\3\2\2\2z{\7e\2\2{"+ 163 | "|\7q\2\2|}\7p\2\2}~\7v\2\2~\177\7k\2\2\177\u0080\7p\2\2\u0080\u0081\7"+ 164 | "w\2\2\u0081\u0082\7g\2\2\u0082\22\3\2\2\2\u0083\u0084\7t\2\2\u0084\u0085"+ 165 | "\7g\2\2\u0085\u0086\7v\2\2\u0086\u0087\7w\2\2\u0087\u0088\7t\2\2\u0088"+ 166 | "\u0089\7p\2\2\u0089\24\3\2\2\2\u008a\u008b\7-\2\2\u008b\26\3\2\2\2\u008c"+ 167 | "\u008d\7/\2\2\u008d\30\3\2\2\2\u008e\u008f\7,\2\2\u008f\32\3\2\2\2\u0090"+ 168 | "\u0091\7\61\2\2\u0091\34\3\2\2\2\u0092\u0093\7\'\2\2\u0093\36\3\2\2\2"+ 169 | "\u0094\u0095\7?\2\2\u0095 \3\2\2\2\u0096\u0097\7?\2\2\u0097\u0098\7?\2"+ 170 | "\2\u0098\"\3\2\2\2\u0099\u009a\7#\2\2\u009a\u009b\7?\2\2\u009b$\3\2\2"+ 171 | "\2\u009c\u009d\7>\2\2\u009d&\3\2\2\2\u009e\u009f\7@\2\2\u009f(\3\2\2\2"+ 172 | "\u00a0\u00a1\7>\2\2\u00a1\u00a2\7?\2\2\u00a2*\3\2\2\2\u00a3\u00a4\7@\2"+ 173 | "\2\u00a4\u00a5\7?\2\2\u00a5,\3\2\2\2\u00a6\u00a7\7#\2\2\u00a7.\3\2\2\2"+ 174 | "\u00a8\u00a9\7(\2\2\u00a9\u00aa\7(\2\2\u00aa\60\3\2\2\2\u00ab\u00ac\7"+ 175 | "~\2\2\u00ac\u00ad\7~\2\2\u00ad\62\3\2\2\2\u00ae\u00af\7*\2\2\u00af\64"+ 176 | "\3\2\2\2\u00b0\u00b1\7+\2\2\u00b1\66\3\2\2\2\u00b2\u00b3\7}\2\2\u00b3"+ 177 | "8\3\2\2\2\u00b4\u00b5\7\177\2\2\u00b5:\3\2\2\2\u00b6\u00b7\7]\2\2\u00b7"+ 178 | "<\3\2\2\2\u00b8\u00b9\7_\2\2\u00b9>\3\2\2\2\u00ba\u00bb\7.\2\2\u00bb@"+ 179 | "\3\2\2\2\u00bc\u00bd\7=\2\2\u00bdB\3\2\2\2\u00be\u00c1\5S*\2\u00bf\u00c1"+ 180 | "\7a\2\2\u00c0\u00be\3\2\2\2\u00c0\u00bf\3\2\2\2\u00c1\u00c7\3\2\2\2\u00c2"+ 181 | "\u00c6\5S*\2\u00c3\u00c6\5U+\2\u00c4\u00c6\7a\2\2\u00c5\u00c2\3\2\2\2"+ 182 | "\u00c5\u00c3\3\2\2\2\u00c5\u00c4\3\2\2\2\u00c6\u00c9\3\2\2\2\u00c7\u00c5"+ 183 | "\3\2\2\2\u00c7\u00c8\3\2\2\2\u00c8D\3\2\2\2\u00c9\u00c7\3\2\2\2\u00ca"+ 184 | "\u00ce\5I%\2\u00cb\u00ce\5K&\2\u00cc\u00ce\5G$\2\u00cd\u00ca\3\2\2\2\u00cd"+ 185 | "\u00cb\3\2\2\2\u00cd\u00cc\3\2\2\2\u00ceF\3\2\2\2\u00cf\u00d8\7\62\2\2"+ 186 | "\u00d0\u00d4\t\2\2\2\u00d1\u00d3\t\3\2\2\u00d2\u00d1\3\2\2\2\u00d3\u00d6"+ 187 | "\3\2\2\2\u00d4\u00d2\3\2\2\2\u00d4\u00d5\3\2\2\2\u00d5\u00d8\3\2\2\2\u00d6"+ 188 | "\u00d4\3\2\2\2\u00d7\u00cf\3\2\2\2\u00d7\u00d0\3\2\2\2\u00d8H\3\2\2\2"+ 189 | "\u00d9\u00db\7\62\2\2\u00da\u00dc\t\4\2\2\u00db\u00da\3\2\2\2\u00dc\u00dd"+ 190 | "\3\2\2\2\u00dd\u00db\3\2\2\2\u00dd\u00de\3\2\2\2\u00deJ\3\2\2\2\u00df"+ 191 | "\u00e0\7\62\2\2\u00e0\u00e4\7z\2\2\u00e1\u00e2\7\62\2\2\u00e2\u00e4\7"+ 192 | "Z\2\2\u00e3\u00df\3\2\2\2\u00e3\u00e1\3\2\2\2\u00e4\u00e7\3\2\2\2\u00e5"+ 193 | "\u00e8\5U+\2\u00e6\u00e8\t\5\2\2\u00e7\u00e5\3\2\2\2\u00e7\u00e6\3\2\2"+ 194 | "\2\u00e8\u00e9\3\2\2\2\u00e9\u00e7\3\2\2\2\u00e9\u00ea\3\2\2\2\u00eaL"+ 195 | "\3\2\2\2\u00eb\u00ed\t\6\2\2\u00ec\u00eb\3\2\2\2\u00ed\u00ee\3\2\2\2\u00ee"+ 196 | "\u00ec\3\2\2\2\u00ee\u00ef\3\2\2\2\u00ef\u00f0\3\2\2\2\u00f0\u00f1\b\'"+ 197 | "\2\2\u00f1N\3\2\2\2\u00f2\u00f3\7\61\2\2\u00f3\u00f4\7\61\2\2\u00f4\u00f8"+ 198 | "\3\2\2\2\u00f5\u00f7\13\2\2\2\u00f6\u00f5\3\2\2\2\u00f7\u00fa\3\2\2\2"+ 199 | "\u00f8\u00f9\3\2\2\2\u00f8\u00f6\3\2\2\2\u00f9\u00fb\3\2\2\2\u00fa\u00f8"+ 200 | "\3\2\2\2\u00fb\u00fc\7\f\2\2\u00fc\u00fd\3\2\2\2\u00fd\u00fe\b(\2\2\u00fe"+ 201 | "P\3\2\2\2\u00ff\u0100\7\61\2\2\u0100\u0101\7,\2\2\u0101\u0105\3\2\2\2"+ 202 | "\u0102\u0104\13\2\2\2\u0103\u0102\3\2\2\2\u0104\u0107\3\2\2\2\u0105\u0106"+ 203 | "\3\2\2\2\u0105\u0103\3\2\2\2\u0106\u0108\3\2\2\2\u0107\u0105\3\2\2\2\u0108"+ 204 | "\u0109\7,\2\2\u0109\u010a\7\61\2\2\u010a\u010b\3\2\2\2\u010b\u010c\b)"+ 205 | "\2\2\u010cR\3\2\2\2\u010d\u010e\t\7\2\2\u010eT\3\2\2\2\u010f\u0110\t\3"+ 206 | "\2\2\u0110V\3\2\2\2\20\2\u00c0\u00c5\u00c7\u00cd\u00d4\u00d7\u00dd\u00e3"+ 207 | "\u00e7\u00e9\u00ee\u00f8\u0105\3\b\2\2"; 208 | public static final ATN _ATN = 209 | new ATNDeserializer().deserialize(_serializedATN.toCharArray()); 210 | static { 211 | _decisionToDFA = new DFA[_ATN.getNumberOfDecisions()]; 212 | for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) { 213 | _decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i); 214 | } 215 | } 216 | } -------------------------------------------------------------------------------- /src/SysYLexer.tokens: -------------------------------------------------------------------------------- 1 | CONST=1 2 | INT=2 3 | VOID=3 4 | IF=4 5 | ELSE=5 6 | WHILE=6 7 | BREAK=7 8 | CONTINUE=8 9 | RETURN=9 10 | PLUS=10 11 | MINUS=11 12 | MUL=12 13 | DIV=13 14 | MOD=14 15 | ASSIGN=15 16 | EQ=16 17 | NEQ=17 18 | LT=18 19 | GT=19 20 | LE=20 21 | GE=21 22 | NOT=22 23 | AND=23 24 | OR=24 25 | L_PAREN=25 26 | R_PAREN=26 27 | L_BRACE=27 28 | R_BRACE=28 29 | L_BRACKT=29 30 | R_BRACKT=30 31 | COMMA=31 32 | SEMICOLON=32 33 | IDENT=33 34 | INTEGR_CONST=34 35 | WS=35 36 | SL_COMMENT=36 37 | ML_COMMENT=37 38 | 'const'=1 39 | 'int'=2 40 | 'void'=3 41 | 'if'=4 42 | 'else'=5 43 | 'while'=6 44 | 'break'=7 45 | 'continue'=8 46 | 'return'=9 47 | '+'=10 48 | '-'=11 49 | '*'=12 50 | '/'=13 51 | '%'=14 52 | '='=15 53 | '=='=16 54 | '!='=17 55 | '<'=18 56 | '>'=19 57 | '<='=20 58 | '>='=21 59 | '!'=22 60 | '&&'=23 61 | '||'=24 62 | '('=25 63 | ')'=26 64 | '{'=27 65 | '}'=28 66 | '['=29 67 | ']'=30 68 | ','=31 69 | ';'=32 70 | -------------------------------------------------------------------------------- /src/SysYParser.g4: -------------------------------------------------------------------------------- 1 | parser grammar SysYParser; 2 | 3 | options { 4 | tokenVocab = SysYLexer; 5 | } 6 | 7 | program : compUnit; 8 | 9 | // 编译单元 10 | compUnit : (funcDef | decl)+ EOF; 11 | 12 | // 下面是其他的语法单元定义 13 | 14 | // 声明 15 | decl : constDecl | varDecl; 16 | 17 | // 常量声明 18 | constDecl : CONST bType constDef (COMMA constDef)* SEMICOLON; 19 | 20 | // 基本类型 21 | bType : INT; 22 | 23 | // 常数定义 24 | constDef : IDENT (L_BRACKT constExp R_BRACKT)* ASSIGN constInitVal; 25 | 26 | // 常量初值 27 | constInitVal : constExp | L_BRACE (constInitVal (COMMA constInitVal)*)? R_BRACE; 28 | 29 | // 变量声明 30 | varDecl : bType varDef (COMMA varDef)* SEMICOLON; 31 | 32 | // 变量定义 33 | varDef : IDENT (L_BRACKT constExp R_BRACKT)* (ASSIGN initVal)?; 34 | 35 | // 变量初值 36 | initVal : exp | L_BRACE (initVal (COMMA initVal)*)? R_BRACE; 37 | 38 | // 函数定义 39 | funcDef : funcType IDENT L_PAREN (funcFParams)? R_PAREN block; 40 | 41 | // 函数类型 42 | funcType : VOID | INT; 43 | 44 | // 函数形参表 45 | funcFParams : funcFParam (COMMA funcFParam)*; 46 | 47 | // 函数形参 48 | funcFParam : bType IDENT (L_BRACKT R_BRACKT (L_BRACKT exp R_BRACKT)*)?; 49 | 50 | // 语句块 51 | block : L_BRACE (blockItem)* R_BRACE; 52 | 53 | // 语句块项 54 | blockItem : decl | stmt; 55 | 56 | // 语句 57 | stmt : lVal ASSIGN exp SEMICOLON # assignment 58 | | (exp)? SEMICOLON # possibleExp 59 | | block # blockStmt 60 | | IF L_PAREN cond R_PAREN stmt (ELSE stmt)? # ifStmt 61 | | WHILE L_PAREN cond R_PAREN stmt # whileStmt 62 | | BREAK SEMICOLON # breakStmt 63 | | CONTINUE SEMICOLON # continueStmt 64 | | RETURN (exp)? SEMICOLON # returnStmt 65 | ; 66 | 67 | // 表达式 68 | exp: L_PAREN exp R_PAREN # parenExp 69 | | lVal # lValExp 70 | | number # numExp 71 | | IDENT L_PAREN funcRParams? R_PAREN # funcCallExp 72 | | unaryOp exp # unaryExp 73 | | exp (MUL | DIV | MOD) exp # mulExp 74 | | exp (PLUS | MINUS) exp # addExp 75 | ; 76 | 77 | 78 | // 条件表达式 79 | cond: exp # condExp 80 | | cond (LT | GT | LE | GE) cond # compareExp 81 | | cond (EQ | NEQ) cond # relationExp 82 | | cond AND cond # andExp 83 | | cond OR cond # orExp 84 | ; 85 | 86 | 87 | // 左值表达式 88 | lVal : IDENT (L_BRACKT exp R_BRACKT)*; 89 | 90 | // 基本表达式 91 | // primaryExp : L_PAREN exp R_PAREN | lVal | number; 92 | 93 | // 数值 94 | number : INTEGR_CONST; 95 | 96 | // 一元表达式 97 | //unaryExp : primaryExp | IDENT L_PAREN (funcRParams)? R_PAREN | unaryOp unaryExp; 98 | 99 | // 单目运算符 100 | unaryOp : PLUS | MINUS | NOT; 101 | 102 | // 函数实参表， from TA 103 | funcRParams : param (COMMA param)*; 104 | 105 | // from TA 106 | param : exp; 107 | 108 | //// 乘除模表达式 109 | //mulExp : unaryOp | mulExp (MUL | DIV | MOD) unaryExp; 110 | // 111 | //// 加减表达式 112 | //addExp : mulExp | addExp (PLUS | MINUS) mulExp; 113 | // 114 | //// 关系表达式 115 | //relExp : addExp | relExp (LT | GT | LE | GE) addExp; 116 | // 117 | //// 相等性表达式 118 | //eqExp : relExp | eqExp (EQ | NEQ) relExp; 119 | // 120 | //// 逻辑与表达式 121 | //lAndExp : eqExp | lAndExp LAND eqExp; 122 | // 123 | //// 逻辑或表达式 124 | //lOrExp : lAndExp | lOrExp LOR lAndExp; 125 | 126 | // 常量表达式 127 | constExp : exp; -------------------------------------------------------------------------------- /src/SysYParser.interp: -------------------------------------------------------------------------------- 1 | token literal names: 2 | null 3 | 'const' 4 | 'int' 5 | 'void' 6 | 'if' 7 | 'else' 8 | 'while' 9 | 'break' 10 | 'continue' 11 | 'return' 12 | '+' 13 | '-' 14 | '*' 15 | '/' 16 | '%' 17 | '=' 18 | '==' 19 | '!=' 20 | '<' 21 | '>' 22 | '<=' 23 | '>=' 24 | '!' 25 | '&&' 26 | '||' 27 | '(' 28 | ')' 29 | '{' 30 | '}' 31 | '[' 32 | ']' 33 | ',' 34 | ';' 35 | null 36 | null 37 | null 38 | null 39 | null 40 | 41 | token symbolic names: 42 | null 43 | CONST 44 | INT 45 | VOID 46 | IF 47 | ELSE 48 | WHILE 49 | BREAK 50 | CONTINUE 51 | RETURN 52 | PLUS 53 | MINUS 54 | MUL 55 | DIV 56 | MOD 57 | ASSIGN 58 | EQ 59 | NEQ 60 | LT 61 | GT 62 | LE 63 | GE 64 | NOT 65 | AND 66 | OR 67 | L_PAREN 68 | R_PAREN 69 | L_BRACE 70 | R_BRACE 71 | L_BRACKT 72 | R_BRACKT 73 | COMMA 74 | SEMICOLON 75 | IDENT 76 | INTEGR_CONST 77 | WS 78 | SL_COMMENT 79 | ML_COMMENT 80 | 81 | rule names: 82 | program 83 | compUnit 84 | decl 85 | constDecl 86 | bType 87 | constDef 88 | constInitVal 89 | varDecl 90 | varDef 91 | initVal 92 | funcDef 93 | funcType 94 | funcFParams 95 | funcFParam 96 | block 97 | blockItem 98 | stmt 99 | exp 100 | cond 101 | lVal 102 | number 103 | unaryOp 104 | funcRParams 105 | param 106 | constExp 107 | 108 | 109 | atn: 110 | [3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 3, 39, 307, 4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7, 9, 7, 4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12, 4, 13, 9, 13, 4, 14, 9, 14, 4, 15, 9, 15, 4, 16, 9, 16, 4, 17, 9, 17, 4, 18, 9, 18, 4, 19, 9, 19, 4, 20, 9, 20, 4, 21, 9, 21, 4, 22, 9, 22, 4, 23, 9, 23, 4, 24, 9, 24, 4, 25, 9, 25, 4, 26, 9, 26, 3, 2, 3, 2, 3, 3, 3, 3, 6, 3, 57, 10, 3, 13, 3, 14, 3, 58, 3, 3, 3, 3, 3, 4, 3, 4, 5, 4, 65, 10, 4, 3, 5, 3, 5, 3, 5, 3, 5, 3, 5, 7, 5, 72, 10, 5, 12, 5, 14, 5, 75, 11, 5, 3, 5, 3, 5, 3, 6, 3, 6, 3, 7, 3, 7, 3, 7, 3, 7, 3, 7, 7, 7, 86, 10, 7, 12, 7, 14, 7, 89, 11, 7, 3, 7, 3, 7, 3, 7, 3, 8, 3, 8, 3, 8, 3, 8, 3, 8, 7, 8, 99, 10, 8, 12, 8, 14, 8, 102, 11, 8, 5, 8, 104, 10, 8, 3, 8, 5, 8, 107, 10, 8, 3, 9, 3, 9, 3, 9, 3, 9, 7, 9, 113, 10, 9, 12, 9, 14, 9, 116, 11, 9, 3, 9, 3, 9, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 7, 10, 125, 10, 10, 12, 10, 14, 10, 128, 11, 10, 3, 10, 3, 10, 5, 10, 132, 10, 10, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 7, 11, 139, 10, 11, 12, 11, 14, 11, 142, 11, 11, 5, 11, 144, 10, 11, 3, 11, 5, 11, 147, 10, 11, 3, 12, 3, 12, 3, 12, 3, 12, 5, 12, 153, 10, 12, 3, 12, 3, 12, 3, 12, 3, 13, 3, 13, 3, 14, 3, 14, 3, 14, 7, 14, 163, 10, 14, 12, 14, 14, 14, 166, 11, 14, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 7, 15, 176, 10, 15, 12, 15, 14, 15, 179, 11, 15, 5, 15, 181, 10, 15, 3, 16, 3, 16, 7, 16, 185, 10, 16, 12, 16, 14, 16, 188, 11, 16, 3, 16, 3, 16, 3, 17, 3, 17, 5, 17, 194, 10, 17, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 5, 18, 202, 10, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 5, 18, 213, 10, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 5, 18, 227, 10, 18, 3, 18, 5, 18, 230, 10, 18, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 5, 19, 242, 10, 19, 3, 19, 3, 19, 3, 19, 3, 19, 5, 19, 248, 10, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 7, 19, 256, 10, 19, 12, 19, 14, 19, 259, 11, 19, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 7, 20, 276, 10, 20, 12, 20, 14, 20, 279, 11, 20, 3, 21, 3, 21, 3, 21, 3, 21, 3, 21, 7, 21, 286, 10, 21, 12, 21, 14, 21, 289, 11, 21, 3, 22, 3, 22, 3, 23, 3, 23, 3, 24, 3, 24, 3, 24, 7, 24, 298, 10, 24, 12, 24, 14, 24, 301, 11, 24, 3, 25, 3, 25, 3, 26, 3, 26, 3, 26, 2, 4, 36, 38, 27, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 2, 8, 3, 2, 4, 5, 3, 2, 14, 16, 3, 2, 12, 13, 3, 2, 20, 23, 3, 2, 18, 19, 4, 2, 12, 13, 24, 24, 2, 324, 2, 52, 3, 2, 2, 2, 4, 56, 3, 2, 2, 2, 6, 64, 3, 2, 2, 2, 8, 66, 3, 2, 2, 2, 10, 78, 3, 2, 2, 2, 12, 80, 3, 2, 2, 2, 14, 106, 3, 2, 2, 2, 16, 108, 3, 2, 2, 2, 18, 119, 3, 2, 2, 2, 20, 146, 3, 2, 2, 2, 22, 148, 3, 2, 2, 2, 24, 157, 3, 2, 2, 2, 26, 159, 3, 2, 2, 2, 28, 167, 3, 2, 2, 2, 30, 182, 3, 2, 2, 2, 32, 193, 3, 2, 2, 2, 34, 229, 3, 2, 2, 2, 36, 247, 3, 2, 2, 2, 38, 260, 3, 2, 2, 2, 40, 280, 3, 2, 2, 2, 42, 290, 3, 2, 2, 2, 44, 292, 3, 2, 2, 2, 46, 294, 3, 2, 2, 2, 48, 302, 3, 2, 2, 2, 50, 304, 3, 2, 2, 2, 52, 53, 5, 4, 3, 2, 53, 3, 3, 2, 2, 2, 54, 57, 5, 22, 12, 2, 55, 57, 5, 6, 4, 2, 56, 54, 3, 2, 2, 2, 56, 55, 3, 2, 2, 2, 57, 58, 3, 2, 2, 2, 58, 56, 3, 2, 2, 2, 58, 59, 3, 2, 2, 2, 59, 60, 3, 2, 2, 2, 60, 61, 7, 2, 2, 3, 61, 5, 3, 2, 2, 2, 62, 65, 5, 8, 5, 2, 63, 65, 5, 16, 9, 2, 64, 62, 3, 2, 2, 2, 64, 63, 3, 2, 2, 2, 65, 7, 3, 2, 2, 2, 66, 67, 7, 3, 2, 2, 67, 68, 5, 10, 6, 2, 68, 73, 5, 12, 7, 2, 69, 70, 7, 33, 2, 2, 70, 72, 5, 12, 7, 2, 71, 69, 3, 2, 2, 2, 72, 75, 3, 2, 2, 2, 73, 71, 3, 2, 2, 2, 73, 74, 3, 2, 2, 2, 74, 76, 3, 2, 2, 2, 75, 73, 3, 2, 2, 2, 76, 77, 7, 34, 2, 2, 77, 9, 3, 2, 2, 2, 78, 79, 7, 4, 2, 2, 79, 11, 3, 2, 2, 2, 80, 87, 7, 35, 2, 2, 81, 82, 7, 31, 2, 2, 82, 83, 5, 50, 26, 2, 83, 84, 7, 32, 2, 2, 84, 86, 3, 2, 2, 2, 85, 81, 3, 2, 2, 2, 86, 89, 3, 2, 2, 2, 87, 85, 3, 2, 2, 2, 87, 88, 3, 2, 2, 2, 88, 90, 3, 2, 2, 2, 89, 87, 3, 2, 2, 2, 90, 91, 7, 17, 2, 2, 91, 92, 5, 14, 8, 2, 92, 13, 3, 2, 2, 2, 93, 107, 5, 50, 26, 2, 94, 103, 7, 29, 2, 2, 95, 100, 5, 14, 8, 2, 96, 97, 7, 33, 2, 2, 97, 99, 5, 14, 8, 2, 98, 96, 3, 2, 2, 2, 99, 102, 3, 2, 2, 2, 100, 98, 3, 2, 2, 2, 100, 101, 3, 2, 2, 2, 101, 104, 3, 2, 2, 2, 102, 100, 3, 2, 2, 2, 103, 95, 3, 2, 2, 2, 103, 104, 3, 2, 2, 2, 104, 105, 3, 2, 2, 2, 105, 107, 7, 30, 2, 2, 106, 93, 3, 2, 2, 2, 106, 94, 3, 2, 2, 2, 107, 15, 3, 2, 2, 2, 108, 109, 5, 10, 6, 2, 109, 114, 5, 18, 10, 2, 110, 111, 7, 33, 2, 2, 111, 113, 5, 18, 10, 2, 112, 110, 3, 2, 2, 2, 113, 116, 3, 2, 2, 2, 114, 112, 3, 2, 2, 2, 114, 115, 3, 2, 2, 2, 115, 117, 3, 2, 2, 2, 116, 114, 3, 2, 2, 2, 117, 118, 7, 34, 2, 2, 118, 17, 3, 2, 2, 2, 119, 126, 7, 35, 2, 2, 120, 121, 7, 31, 2, 2, 121, 122, 5, 50, 26, 2, 122, 123, 7, 32, 2, 2, 123, 125, 3, 2, 2, 2, 124, 120, 3, 2, 2, 2, 125, 128, 3, 2, 2, 2, 126, 124, 3, 2, 2, 2, 126, 127, 3, 2, 2, 2, 127, 131, 3, 2, 2, 2, 128, 126, 3, 2, 2, 2, 129, 130, 7, 17, 2, 2, 130, 132, 5, 20, 11, 2, 131, 129, 3, 2, 2, 2, 131, 132, 3, 2, 2, 2, 132, 19, 3, 2, 2, 2, 133, 147, 5, 36, 19, 2, 134, 143, 7, 29, 2, 2, 135, 140, 5, 20, 11, 2, 136, 137, 7, 33, 2, 2, 137, 139, 5, 20, 11, 2, 138, 136, 3, 2, 2, 2, 139, 142, 3, 2, 2, 2, 140, 138, 3, 2, 2, 2, 140, 141, 3, 2, 2, 2, 141, 144, 3, 2, 2, 2, 142, 140, 3, 2, 2, 2, 143, 135, 3, 2, 2, 2, 143, 144, 3, 2, 2, 2, 144, 145, 3, 2, 2, 2, 145, 147, 7, 30, 2, 2, 146, 133, 3, 2, 2, 2, 146, 134, 3, 2, 2, 2, 147, 21, 3, 2, 2, 2, 148, 149, 5, 24, 13, 2, 149, 150, 7, 35, 2, 2, 150, 152, 7, 27, 2, 2, 151, 153, 5, 26, 14, 2, 152, 151, 3, 2, 2, 2, 152, 153, 3, 2, 2, 2, 153, 154, 3, 2, 2, 2, 154, 155, 7, 28, 2, 2, 155, 156, 5, 30, 16, 2, 156, 23, 3, 2, 2, 2, 157, 158, 9, 2, 2, 2, 158, 25, 3, 2, 2, 2, 159, 164, 5, 28, 15, 2, 160, 161, 7, 33, 2, 2, 161, 163, 5, 28, 15, 2, 162, 160, 3, 2, 2, 2, 163, 166, 3, 2, 2, 2, 164, 162, 3, 2, 2, 2, 164, 165, 3, 2, 2, 2, 165, 27, 3, 2, 2, 2, 166, 164, 3, 2, 2, 2, 167, 168, 5, 10, 6, 2, 168, 180, 7, 35, 2, 2, 169, 170, 7, 31, 2, 2, 170, 177, 7, 32, 2, 2, 171, 172, 7, 31, 2, 2, 172, 173, 5, 36, 19, 2, 173, 174, 7, 32, 2, 2, 174, 176, 3, 2, 2, 2, 175, 171, 3, 2, 2, 2, 176, 179, 3, 2, 2, 2, 177, 175, 3, 2, 2, 2, 177, 178, 3, 2, 2, 2, 178, 181, 3, 2, 2, 2, 179, 177, 3, 2, 2, 2, 180, 169, 3, 2, 2, 2, 180, 181, 3, 2, 2, 2, 181, 29, 3, 2, 2, 2, 182, 186, 7, 29, 2, 2, 183, 185, 5, 32, 17, 2, 184, 183, 3, 2, 2, 2, 185, 188, 3, 2, 2, 2, 186, 184, 3, 2, 2, 2, 186, 187, 3, 2, 2, 2, 187, 189, 3, 2, 2, 2, 188, 186, 3, 2, 2, 2, 189, 190, 7, 30, 2, 2, 190, 31, 3, 2, 2, 2, 191, 194, 5, 6, 4, 2, 192, 194, 5, 34, 18, 2, 193, 191, 3, 2, 2, 2, 193, 192, 3, 2, 2, 2, 194, 33, 3, 2, 2, 2, 195, 196, 5, 40, 21, 2, 196, 197, 7, 17, 2, 2, 197, 198, 5, 36, 19, 2, 198, 199, 7, 34, 2, 2, 199, 230, 3, 2, 2, 2, 200, 202, 5, 36, 19, 2, 201, 200, 3, 2, 2, 2, 201, 202, 3, 2, 2, 2, 202, 203, 3, 2, 2, 2, 203, 230, 7, 34, 2, 2, 204, 230, 5, 30, 16, 2, 205, 206, 7, 6, 2, 2, 206, 207, 7, 27, 2, 2, 207, 208, 5, 38, 20, 2, 208, 209, 7, 28, 2, 2, 209, 212, 5, 34, 18, 2, 210, 211, 7, 7, 2, 2, 211, 213, 5, 34, 18, 2, 212, 210, 3, 2, 2, 2, 212, 213, 3, 2, 2, 2, 213, 230, 3, 2, 2, 2, 214, 215, 7, 8, 2, 2, 215, 216, 7, 27, 2, 2, 216, 217, 5, 38, 20, 2, 217, 218, 7, 28, 2, 2, 218, 219, 5, 34, 18, 2, 219, 230, 3, 2, 2, 2, 220, 221, 7, 9, 2, 2, 221, 230, 7, 34, 2, 2, 222, 223, 7, 10, 2, 2, 223, 230, 7, 34, 2, 2, 224, 226, 7, 11, 2, 2, 225, 227, 5, 36, 19, 2, 226, 225, 3, 2, 2, 2, 226, 227, 3, 2, 2, 2, 227, 228, 3, 2, 2, 2, 228, 230, 7, 34, 2, 2, 229, 195, 3, 2, 2, 2, 229, 201, 3, 2, 2, 2, 229, 204, 3, 2, 2, 2, 229, 205, 3, 2, 2, 2, 229, 214, 3, 2, 2, 2, 229, 220, 3, 2, 2, 2, 229, 222, 3, 2, 2, 2, 229, 224, 3, 2, 2, 2, 230, 35, 3, 2, 2, 2, 231, 232, 8, 19, 1, 2, 232, 233, 7, 27, 2, 2, 233, 234, 5, 36, 19, 2, 234, 235, 7, 28, 2, 2, 235, 248, 3, 2, 2, 2, 236, 248, 5, 40, 21, 2, 237, 248, 5, 42, 22, 2, 238, 239, 7, 35, 2, 2, 239, 241, 7, 27, 2, 2, 240, 242, 5, 46, 24, 2, 241, 240, 3, 2, 2, 2, 241, 242, 3, 2, 2, 2, 242, 243, 3, 2, 2, 2, 243, 248, 7, 28, 2, 2, 244, 245, 5, 44, 23, 2, 245, 246, 5, 36, 19, 5, 246, 248, 3, 2, 2, 2, 247, 231, 3, 2, 2, 2, 247, 236, 3, 2, 2, 2, 247, 237, 3, 2, 2, 2, 247, 238, 3, 2, 2, 2, 247, 244, 3, 2, 2, 2, 248, 257, 3, 2, 2, 2, 249, 250, 12, 4, 2, 2, 250, 251, 9, 3, 2, 2, 251, 256, 5, 36, 19, 5, 252, 253, 12, 3, 2, 2, 253, 254, 9, 4, 2, 2, 254, 256, 5, 36, 19, 4, 255, 249, 3, 2, 2, 2, 255, 252, 3, 2, 2, 2, 256, 259, 3, 2, 2, 2, 257, 255, 3, 2, 2, 2, 257, 258, 3, 2, 2, 2, 258, 37, 3, 2, 2, 2, 259, 257, 3, 2, 2, 2, 260, 261, 8, 20, 1, 2, 261, 262, 5, 36, 19, 2, 262, 277, 3, 2, 2, 2, 263, 264, 12, 6, 2, 2, 264, 265, 9, 5, 2, 2, 265, 276, 5, 38, 20, 7, 266, 267, 12, 5, 2, 2, 267, 268, 9, 6, 2, 2, 268, 276, 5, 38, 20, 6, 269, 270, 12, 4, 2, 2, 270, 271, 7, 25, 2, 2, 271, 276, 5, 38, 20, 5, 272, 273, 12, 3, 2, 2, 273, 274, 7, 26, 2, 2, 274, 276, 5, 38, 20, 4, 275, 263, 3, 2, 2, 2, 275, 266, 3, 2, 2, 2, 275, 269, 3, 2, 2, 2, 275, 272, 3, 2, 2, 2, 276, 279, 3, 2, 2, 2, 277, 275, 3, 2, 2, 2, 277, 278, 3, 2, 2, 2, 278, 39, 3, 2, 2, 2, 279, 277, 3, 2, 2, 2, 280, 287, 7, 35, 2, 2, 281, 282, 7, 31, 2, 2, 282, 283, 5, 36, 19, 2, 283, 284, 7, 32, 2, 2, 284, 286, 3, 2, 2, 2, 285, 281, 3, 2, 2, 2, 286, 289, 3, 2, 2, 2, 287, 285, 3, 2, 2, 2, 287, 288, 3, 2, 2, 2, 288, 41, 3, 2, 2, 2, 289, 287, 3, 2, 2, 2, 290, 291, 7, 36, 2, 2, 291, 43, 3, 2, 2, 2, 292, 293, 9, 7, 2, 2, 293, 45, 3, 2, 2, 2, 294, 299, 5, 48, 25, 2, 295, 296, 7, 33, 2, 2, 296, 298, 5, 48, 25, 2, 297, 295, 3, 2, 2, 2, 298, 301, 3, 2, 2, 2, 299, 297, 3, 2, 2, 2, 299, 300, 3, 2, 2, 2, 300, 47, 3, 2, 2, 2, 301, 299, 3, 2, 2, 2, 302, 303, 5, 36, 19, 2, 303, 49, 3, 2, 2, 2, 304, 305, 5, 36, 19, 2, 305, 51, 3, 2, 2, 2, 34, 56, 58, 64, 73, 87, 100, 103, 106, 114, 126, 131, 140, 143, 146, 152, 164, 177, 180, 186, 193, 201, 212, 226, 229, 241, 247, 255, 257, 275, 277, 287, 299] -------------------------------------------------------------------------------- /src/SysYParser.tokens: -------------------------------------------------------------------------------- 1 | CONST=1 2 | INT=2 3 | VOID=3 4 | IF=4 5 | ELSE=5 6 | WHILE=6 7 | BREAK=7 8 | CONTINUE=8 9 | RETURN=9 10 | PLUS=10 11 | MINUS=11 12 | MUL=12 13 | DIV=13 14 | MOD=14 15 | ASSIGN=15 16 | EQ=16 17 | NEQ=17 18 | LT=18 19 | GT=19 20 | LE=20 21 | GE=21 22 | NOT=22 23 | AND=23 24 | OR=24 25 | L_PAREN=25 26 | R_PAREN=26 27 | L_BRACE=27 28 | R_BRACE=28 29 | L_BRACKT=29 30 | R_BRACKT=30 31 | COMMA=31 32 | SEMICOLON=32 33 | IDENT=33 34 | INTEGR_CONST=34 35 | WS=35 36 | SL_COMMENT=36 37 | ML_COMMENT=37 38 | 'const'=1 39 | 'int'=2 40 | 'void'=3 41 | 'if'=4 42 | 'else'=5 43 | 'while'=6 44 | 'break'=7 45 | 'continue'=8 46 | 'return'=9 47 | '+'=10 48 | '-'=11 49 | '*'=12 50 | '/'=13 51 | '%'=14 52 | '='=15 53 | '=='=16 54 | '!='=17 55 | '<'=18 56 | '>'=19 57 | '<='=20 58 | '>='=21 59 | '!'=22 60 | '&&'=23 61 | '||'=24 62 | '('=25 63 | ')'=26 64 | '{'=27 65 | '}'=28 66 | '['=29 67 | ']'=30 68 | ','=31 69 | ';'=32 70 | -------------------------------------------------------------------------------- /src/SysYParserBaseListener.java: -------------------------------------------------------------------------------- 1 | // Generated from ./src/SysYParser.g4 by ANTLR 4.9.1 2 | 3 | import org.antlr.v4.runtime.ParserRuleContext; 4 | import org.antlr.v4.runtime.tree.ErrorNode; 5 | import org.antlr.v4.runtime.tree.TerminalNode; 6 | 7 | /** 8 | * This class provides an empty implementation of {@link SysYParserListener}, 9 | * which can be extended to create a listener which only needs to handle a subset 10 | * of the available methods. 11 | */ 12 | public class SysYParserBaseListener implements SysYParserListener { 13 | /** 14 | * {@inheritDoc} 15 | * 16 | *

The default implementation does nothing.

17 | */ 18 | @Override public void enterProgram(SysYParser.ProgramContext ctx) { } 19 | /** 20 | * {@inheritDoc} 21 | * 22 | *

The default implementation does nothing.

23 | */ 24 | @Override public void exitProgram(SysYParser.ProgramContext ctx) { } 25 | /** 26 | * {@inheritDoc} 27 | * 28 | *

The default implementation does nothing.

29 | */ 30 | @Override public void enterCompUnit(SysYParser.CompUnitContext ctx) { } 31 | /** 32 | * {@inheritDoc} 33 | * 34 | *

The default implementation does nothing.

35 | */ 36 | @Override public void exitCompUnit(SysYParser.CompUnitContext ctx) { } 37 | /** 38 | * {@inheritDoc} 39 | * 40 | *

The default implementation does nothing.

41 | */ 42 | @Override public void enterDecl(SysYParser.DeclContext ctx) { } 43 | /** 44 | * {@inheritDoc} 45 | * 46 | *

The default implementation does nothing.

47 | */ 48 | @Override public void exitDecl(SysYParser.DeclContext ctx) { } 49 | /** 50 | * {@inheritDoc} 51 | * 52 | *

The default implementation does nothing.

53 | */ 54 | @Override public void enterConstDecl(SysYParser.ConstDeclContext ctx) { } 55 | /** 56 | * {@inheritDoc} 57 | * 58 | *

The default implementation does nothing.

59 | */ 60 | @Override public void exitConstDecl(SysYParser.ConstDeclContext ctx) { } 61 | /** 62 | * {@inheritDoc} 63 | * 64 | *

The default implementation does nothing.

65 | */ 66 | @Override public void enterBType(SysYParser.BTypeContext ctx) { } 67 | /** 68 | * {@inheritDoc} 69 | * 70 | *

The default implementation does nothing.

71 | */ 72 | @Override public void exitBType(SysYParser.BTypeContext ctx) { } 73 | /** 74 | * {@inheritDoc} 75 | * 76 | *

The default implementation does nothing.

77 | */ 78 | @Override public void enterConstDef(SysYParser.ConstDefContext ctx) { } 79 | /** 80 | * {@inheritDoc} 81 | * 82 | *

The default implementation does nothing.

83 | */ 84 | @Override public void exitConstDef(SysYParser.ConstDefContext ctx) { } 85 | /** 86 | * {@inheritDoc} 87 | * 88 | *

The default implementation does nothing.

89 | */ 90 | @Override public void enterConstInitVal(SysYParser.ConstInitValContext ctx) { } 91 | /** 92 | * {@inheritDoc} 93 | * 94 | *

The default implementation does nothing.

95 | */ 96 | @Override public void exitConstInitVal(SysYParser.ConstInitValContext ctx) { } 97 | /** 98 | * {@inheritDoc} 99 | * 100 | *

The default implementation does nothing.

101 | */ 102 | @Override public void enterVarDecl(SysYParser.VarDeclContext ctx) { } 103 | /** 104 | * {@inheritDoc} 105 | * 106 | *

The default implementation does nothing.

107 | */ 108 | @Override public void exitVarDecl(SysYParser.VarDeclContext ctx) { } 109 | /** 110 | * {@inheritDoc} 111 | * 112 | *

The default implementation does nothing.

113 | */ 114 | @Override public void enterVarDef(SysYParser.VarDefContext ctx) { } 115 | /** 116 | * {@inheritDoc} 117 | * 118 | *

The default implementation does nothing.

119 | */ 120 | @Override public void exitVarDef(SysYParser.VarDefContext ctx) { } 121 | /** 122 | * {@inheritDoc} 123 | * 124 | *

The default implementation does nothing.

125 | */ 126 | @Override public void enterInitVal(SysYParser.InitValContext ctx) { } 127 | /** 128 | * {@inheritDoc} 129 | * 130 | *

The default implementation does nothing.

131 | */ 132 | @Override public void exitInitVal(SysYParser.InitValContext ctx) { } 133 | /** 134 | * {@inheritDoc} 135 | * 136 | *

The default implementation does nothing.

137 | */ 138 | @Override public void enterFuncDef(SysYParser.FuncDefContext ctx) { } 139 | /** 140 | * {@inheritDoc} 141 | * 142 | *

The default implementation does nothing.

143 | */ 144 | @Override public void exitFuncDef(SysYParser.FuncDefContext ctx) { } 145 | /** 146 | * {@inheritDoc} 147 | * 148 | *

The default implementation does nothing.

149 | */ 150 | @Override public void enterFuncType(SysYParser.FuncTypeContext ctx) { } 151 | /** 152 | * {@inheritDoc} 153 | * 154 | *

The default implementation does nothing.

155 | */ 156 | @Override public void exitFuncType(SysYParser.FuncTypeContext ctx) { } 157 | /** 158 | * {@inheritDoc} 159 | * 160 | *

The default implementation does nothing.

161 | */ 162 | @Override public void enterFuncFParams(SysYParser.FuncFParamsContext ctx) { } 163 | /** 164 | * {@inheritDoc} 165 | * 166 | *

The default implementation does nothing.

167 | */ 168 | @Override public void exitFuncFParams(SysYParser.FuncFParamsContext ctx) { } 169 | /** 170 | * {@inheritDoc} 171 | * 172 | *

The default implementation does nothing.

173 | */ 174 | @Override public void enterFuncFParam(SysYParser.FuncFParamContext ctx) { } 175 | /** 176 | * {@inheritDoc} 177 | * 178 | *

The default implementation does nothing.

179 | */ 180 | @Override public void exitFuncFParam(SysYParser.FuncFParamContext ctx) { } 181 | /** 182 | * {@inheritDoc} 183 | * 184 | *

The default implementation does nothing.

185 | */ 186 | @Override public void enterBlock(SysYParser.BlockContext ctx) { } 187 | /** 188 | * {@inheritDoc} 189 | * 190 | *

The default implementation does nothing.

191 | */ 192 | @Override public void exitBlock(SysYParser.BlockContext ctx) { } 193 | /** 194 | * {@inheritDoc} 195 | * 196 | *

The default implementation does nothing.

197 | */ 198 | @Override public void enterBlockItem(SysYParser.BlockItemContext ctx) { } 199 | /** 200 | * {@inheritDoc} 201 | * 202 | *

The default implementation does nothing.

203 | */ 204 | @Override public void exitBlockItem(SysYParser.BlockItemContext ctx) { } 205 | /** 206 | * {@inheritDoc} 207 | * 208 | *

The default implementation does nothing.

209 | */ 210 | @Override public void enterAssignment(SysYParser.AssignmentContext ctx) { } 211 | /** 212 | * {@inheritDoc} 213 | * 214 | *

The default implementation does nothing.

215 | */ 216 | @Override public void exitAssignment(SysYParser.AssignmentContext ctx) { } 217 | /** 218 | * {@inheritDoc} 219 | * 220 | *

The default implementation does nothing.

221 | */ 222 | @Override public void enterPossibleExp(SysYParser.PossibleExpContext ctx) { } 223 | /** 224 | * {@inheritDoc} 225 | * 226 | *

The default implementation does nothing.

227 | */ 228 | @Override public void exitPossibleExp(SysYParser.PossibleExpContext ctx) { } 229 | /** 230 | * {@inheritDoc} 231 | * 232 | *

The default implementation does nothing.

233 | */ 234 | @Override public void enterBlockStmt(SysYParser.BlockStmtContext ctx) { } 235 | /** 236 | * {@inheritDoc} 237 | * 238 | *

The default implementation does nothing.

239 | */ 240 | @Override public void exitBlockStmt(SysYParser.BlockStmtContext ctx) { } 241 | /** 242 | * {@inheritDoc} 243 | * 244 | *

The default implementation does nothing.

245 | */ 246 | @Override public void enterIfStmt(SysYParser.IfStmtContext ctx) { } 247 | /** 248 | * {@inheritDoc} 249 | * 250 | *

The default implementation does nothing.

251 | */ 252 | @Override public void exitIfStmt(SysYParser.IfStmtContext ctx) { } 253 | /** 254 | * {@inheritDoc} 255 | * 256 | *

The default implementation does nothing.

257 | */ 258 | @Override public void enterWhileStmt(SysYParser.WhileStmtContext ctx) { } 259 | /** 260 | * {@inheritDoc} 261 | * 262 | *

The default implementation does nothing.

263 | */ 264 | @Override public void exitWhileStmt(SysYParser.WhileStmtContext ctx) { } 265 | /** 266 | * {@inheritDoc} 267 | * 268 | *

The default implementation does nothing.

269 | */ 270 | @Override public void enterBreakStmt(SysYParser.BreakStmtContext ctx) { } 271 | /** 272 | * {@inheritDoc} 273 | * 274 | *

The default implementation does nothing.

275 | */ 276 | @Override public void exitBreakStmt(SysYParser.BreakStmtContext ctx) { } 277 | /** 278 | * {@inheritDoc} 279 | * 280 | *

The default implementation does nothing.

281 | */ 282 | @Override public void enterContinueStmt(SysYParser.ContinueStmtContext ctx) { } 283 | /** 284 | * {@inheritDoc} 285 | * 286 | *

The default implementation does nothing.

287 | */ 288 | @Override public void exitContinueStmt(SysYParser.ContinueStmtContext ctx) { } 289 | /** 290 | * {@inheritDoc} 291 | * 292 | *

The default implementation does nothing.

293 | */ 294 | @Override public void enterReturnStmt(SysYParser.ReturnStmtContext ctx) { } 295 | /** 296 | * {@inheritDoc} 297 | * 298 | *

The default implementation does nothing.

299 | */ 300 | @Override public void exitReturnStmt(SysYParser.ReturnStmtContext ctx) { } 301 | /** 302 | * {@inheritDoc} 303 | * 304 | *

The default implementation does nothing.

305 | */ 306 | @Override public void enterLValExp(SysYParser.LValExpContext ctx) { } 307 | /** 308 | * {@inheritDoc} 309 | * 310 | *

The default implementation does nothing.

311 | */ 312 | @Override public void exitLValExp(SysYParser.LValExpContext ctx) { } 313 | /** 314 | * {@inheritDoc} 315 | * 316 | *

The default implementation does nothing.

317 | */ 318 | @Override public void enterUnaryExp(SysYParser.UnaryExpContext ctx) { } 319 | /** 320 | * {@inheritDoc} 321 | * 322 | *

The default implementation does nothing.

323 | */ 324 | @Override public void exitUnaryExp(SysYParser.UnaryExpContext ctx) { } 325 | /** 326 | * {@inheritDoc} 327 | * 328 | *

The default implementation does nothing.

329 | */ 330 | @Override public void enterParenExp(SysYParser.ParenExpContext ctx) { } 331 | /** 332 | * {@inheritDoc} 333 | * 334 | *

The default implementation does nothing.

335 | */ 336 | @Override public void exitParenExp(SysYParser.ParenExpContext ctx) { } 337 | /** 338 | * {@inheritDoc} 339 | * 340 | *

The default implementation does nothing.

341 | */ 342 | @Override public void enterAddExp(SysYParser.AddExpContext ctx) { } 343 | /** 344 | * {@inheritDoc} 345 | * 346 | *

The default implementation does nothing.

347 | */ 348 | @Override public void exitAddExp(SysYParser.AddExpContext ctx) { } 349 | /** 350 | * {@inheritDoc} 351 | * 352 | *

The default implementation does nothing.

353 | */ 354 | @Override public void enterMulExp(SysYParser.MulExpContext ctx) { } 355 | /** 356 | * {@inheritDoc} 357 | * 358 | *

The default implementation does nothing.

359 | */ 360 | @Override public void exitMulExp(SysYParser.MulExpContext ctx) { } 361 | /** 362 | * {@inheritDoc} 363 | * 364 | *

The default implementation does nothing.

365 | */ 366 | @Override public void enterFuncCallExp(SysYParser.FuncCallExpContext ctx) { } 367 | /** 368 | * {@inheritDoc} 369 | * 370 | *

The default implementation does nothing.

371 | */ 372 | @Override public void exitFuncCallExp(SysYParser.FuncCallExpContext ctx) { } 373 | /** 374 | * {@inheritDoc} 375 | * 376 | *

The default implementation does nothing.

377 | */ 378 | @Override public void enterNumExp(SysYParser.NumExpContext ctx) { } 379 | /** 380 | * {@inheritDoc} 381 | * 382 | *

The default implementation does nothing.

383 | */ 384 | @Override public void exitNumExp(SysYParser.NumExpContext ctx) { } 385 | /** 386 | * {@inheritDoc} 387 | * 388 | *

The default implementation does nothing.

389 | */ 390 | @Override public void enterCompareExp(SysYParser.CompareExpContext ctx) { } 391 | /** 392 | * {@inheritDoc} 393 | * 394 | *

The default implementation does nothing.

395 | */ 396 | @Override public void exitCompareExp(SysYParser.CompareExpContext ctx) { } 397 | /** 398 | * {@inheritDoc} 399 | * 400 | *

The default implementation does nothing.

401 | */ 402 | @Override public void enterRelationExp(SysYParser.RelationExpContext ctx) { } 403 | /** 404 | * {@inheritDoc} 405 | * 406 | *

The default implementation does nothing.

407 | */ 408 | @Override public void exitRelationExp(SysYParser.RelationExpContext ctx) { } 409 | /** 410 | * {@inheritDoc} 411 | * 412 | *

The default implementation does nothing.

413 | */ 414 | @Override public void enterCondExp(SysYParser.CondExpContext ctx) { } 415 | /** 416 | * {@inheritDoc} 417 | * 418 | *

The default implementation does nothing.

419 | */ 420 | @Override public void exitCondExp(SysYParser.CondExpContext ctx) { } 421 | /** 422 | * {@inheritDoc} 423 | * 424 | *

The default implementation does nothing.

425 | */ 426 | @Override public void enterAndExp(SysYParser.AndExpContext ctx) { } 427 | /** 428 | * {@inheritDoc} 429 | * 430 | *

The default implementation does nothing.

431 | */ 432 | @Override public void exitAndExp(SysYParser.AndExpContext ctx) { } 433 | /** 434 | * {@inheritDoc} 435 | * 436 | *

The default implementation does nothing.

437 | */ 438 | @Override public void enterOrExp(SysYParser.OrExpContext ctx) { } 439 | /** 440 | * {@inheritDoc} 441 | * 442 | *

The default implementation does nothing.

443 | */ 444 | @Override public void exitOrExp(SysYParser.OrExpContext ctx) { } 445 | /** 446 | * {@inheritDoc} 447 | * 448 | *

The default implementation does nothing.

449 | */ 450 | @Override public void enterLVal(SysYParser.LValContext ctx) { } 451 | /** 452 | * {@inheritDoc} 453 | * 454 | *

The default implementation does nothing.

455 | */ 456 | @Override public void exitLVal(SysYParser.LValContext ctx) { } 457 | /** 458 | * {@inheritDoc} 459 | * 460 | *

The default implementation does nothing.

461 | */ 462 | @Override public void enterNumber(SysYParser.NumberContext ctx) { } 463 | /** 464 | * {@inheritDoc} 465 | * 466 | *

The default implementation does nothing.

467 | */ 468 | @Override public void exitNumber(SysYParser.NumberContext ctx) { } 469 | /** 470 | * {@inheritDoc} 471 | * 472 | *

The default implementation does nothing.

473 | */ 474 | @Override public void enterUnaryOp(SysYParser.UnaryOpContext ctx) { } 475 | /** 476 | * {@inheritDoc} 477 | * 478 | *

The default implementation does nothing.

479 | */ 480 | @Override public void exitUnaryOp(SysYParser.UnaryOpContext ctx) { } 481 | /** 482 | * {@inheritDoc} 483 | * 484 | *

The default implementation does nothing.

485 | */ 486 | @Override public void enterFuncRParams(SysYParser.FuncRParamsContext ctx) { } 487 | /** 488 | * {@inheritDoc} 489 | * 490 | *

The default implementation does nothing.

491 | */ 492 | @Override public void exitFuncRParams(SysYParser.FuncRParamsContext ctx) { } 493 | /** 494 | * {@inheritDoc} 495 | * 496 | *

The default implementation does nothing.

497 | */ 498 | @Override public void enterParam(SysYParser.ParamContext ctx) { } 499 | /** 500 | * {@inheritDoc} 501 | * 502 | *

The default implementation does nothing.

503 | */ 504 | @Override public void exitParam(SysYParser.ParamContext ctx) { } 505 | /** 506 | * {@inheritDoc} 507 | * 508 | *

The default implementation does nothing.

509 | */ 510 | @Override public void enterConstExp(SysYParser.ConstExpContext ctx) { } 511 | /** 512 | * {@inheritDoc} 513 | * 514 | *

The default implementation does nothing.

515 | */ 516 | @Override public void exitConstExp(SysYParser.ConstExpContext ctx) { } 517 | 518 | /** 519 | * {@inheritDoc} 520 | * 521 | *

The default implementation does nothing.

522 | */ 523 | @Override public void enterEveryRule(ParserRuleContext ctx) { } 524 | /** 525 | * {@inheritDoc} 526 | * 527 | *

The default implementation does nothing.

528 | */ 529 | @Override public void exitEveryRule(ParserRuleContext ctx) { } 530 | /** 531 | * {@inheritDoc} 532 | * 533 | *

The default implementation does nothing.

534 | */ 535 | @Override public void visitTerminal(TerminalNode node) { } 536 | /** 537 | * {@inheritDoc} 538 | * 539 | *

The default implementation does nothing.

540 | */ 541 | @Override public void visitErrorNode(ErrorNode node) { } 542 | } -------------------------------------------------------------------------------- /src/SysYParserBaseVisitor.java: -------------------------------------------------------------------------------- 1 | // Generated from ./src/SysYParser.g4 by ANTLR 4.9.1 2 | import org.antlr.v4.runtime.tree.AbstractParseTreeVisitor; 3 | 4 | /** 5 | * This class provides an empty implementation of {@link SysYParserVisitor}, 6 | * which can be extended to create a visitor which only needs to handle a subset 7 | * of the available methods. 8 | * 9 | * @param The return type of the visit operation. Use {@link Void} for 10 | * operations with no return type. 11 | */ 12 | public class SysYParserBaseVisitor extends AbstractParseTreeVisitor implements SysYParserVisitor { 13 | /** 14 | * {@inheritDoc} 15 | * 16 | *

The default implementation returns the result of calling 17 | * {@link #visitChildren} on {@code ctx}.

18 | */ 19 | @Override public T visitProgram(SysYParser.ProgramContext ctx) { return visitChildren(ctx); } 20 | /** 21 | * {@inheritDoc} 22 | * 23 | *

The default implementation returns the result of calling 24 | * {@link #visitChildren} on {@code ctx}.

25 | */ 26 | @Override public T visitCompUnit(SysYParser.CompUnitContext ctx) { return visitChildren(ctx); } 27 | /** 28 | * {@inheritDoc} 29 | * 30 | *

The default implementation returns the result of calling 31 | * {@link #visitChildren} on {@code ctx}.

32 | */ 33 | @Override public T visitDecl(SysYParser.DeclContext ctx) { return visitChildren(ctx); } 34 | /** 35 | * {@inheritDoc} 36 | * 37 | *

The default implementation returns the result of calling 38 | * {@link #visitChildren} on {@code ctx}.

39 | */ 40 | @Override public T visitConstDecl(SysYParser.ConstDeclContext ctx) { return visitChildren(ctx); } 41 | /** 42 | * {@inheritDoc} 43 | * 44 | *

The default implementation returns the result of calling 45 | * {@link #visitChildren} on {@code ctx}.

46 | */ 47 | @Override public T visitBType(SysYParser.BTypeContext ctx) { return visitChildren(ctx); } 48 | /** 49 | * {@inheritDoc} 50 | * 51 | *

The default implementation returns the result of calling 52 | * {@link #visitChildren} on {@code ctx}.

53 | */ 54 | @Override public T visitConstDef(SysYParser.ConstDefContext ctx) { return visitChildren(ctx); } 55 | /** 56 | * {@inheritDoc} 57 | * 58 | *

The default implementation returns the result of calling 59 | * {@link #visitChildren} on {@code ctx}.

60 | */ 61 | @Override public T visitConstInitVal(SysYParser.ConstInitValContext ctx) { return visitChildren(ctx); } 62 | /** 63 | * {@inheritDoc} 64 | * 65 | *

The default implementation returns the result of calling 66 | * {@link #visitChildren} on {@code ctx}.

67 | */ 68 | @Override public T visitVarDecl(SysYParser.VarDeclContext ctx) { return visitChildren(ctx); } 69 | /** 70 | * {@inheritDoc} 71 | * 72 | *

The default implementation returns the result of calling 73 | * {@link #visitChildren} on {@code ctx}.

74 | */ 75 | @Override public T visitVarDef(SysYParser.VarDefContext ctx) { return visitChildren(ctx); } 76 | /** 77 | * {@inheritDoc} 78 | * 79 | *

The default implementation returns the result of calling 80 | * {@link #visitChildren} on {@code ctx}.

81 | */ 82 | @Override public T visitInitVal(SysYParser.InitValContext ctx) { return visitChildren(ctx); } 83 | /** 84 | * {@inheritDoc} 85 | * 86 | *

The default implementation returns the result of calling 87 | * {@link #visitChildren} on {@code ctx}.

88 | */ 89 | @Override public T visitFuncDef(SysYParser.FuncDefContext ctx) { return visitChildren(ctx); } 90 | /** 91 | * {@inheritDoc} 92 | * 93 | *

The default implementation returns the result of calling 94 | * {@link #visitChildren} on {@code ctx}.

95 | */ 96 | @Override public T visitFuncType(SysYParser.FuncTypeContext ctx) { return visitChildren(ctx); } 97 | /** 98 | * {@inheritDoc} 99 | * 100 | *

The default implementation returns the result of calling 101 | * {@link #visitChildren} on {@code ctx}.

102 | */ 103 | @Override public T visitFuncFParams(SysYParser.FuncFParamsContext ctx) { return visitChildren(ctx); } 104 | /** 105 | * {@inheritDoc} 106 | * 107 | *

The default implementation returns the result of calling 108 | * {@link #visitChildren} on {@code ctx}.

109 | */ 110 | @Override public T visitFuncFParam(SysYParser.FuncFParamContext ctx) { return visitChildren(ctx); } 111 | /** 112 | * {@inheritDoc} 113 | * 114 | *

The default implementation returns the result of calling 115 | * {@link #visitChildren} on {@code ctx}.

116 | */ 117 | @Override public T visitBlock(SysYParser.BlockContext ctx) { return visitChildren(ctx); } 118 | /** 119 | * {@inheritDoc} 120 | * 121 | *

The default implementation returns the result of calling 122 | * {@link #visitChildren} on {@code ctx}.

123 | */ 124 | @Override public T visitBlockItem(SysYParser.BlockItemContext ctx) { return visitChildren(ctx); } 125 | /** 126 | * {@inheritDoc} 127 | * 128 | *

The default implementation returns the result of calling 129 | * {@link #visitChildren} on {@code ctx}.

130 | */ 131 | @Override public T visitAssignment(SysYParser.AssignmentContext ctx) { return visitChildren(ctx); } 132 | /** 133 | * {@inheritDoc} 134 | * 135 | *

The default implementation returns the result of calling 136 | * {@link #visitChildren} on {@code ctx}.

137 | */ 138 | @Override public T visitPossibleExp(SysYParser.PossibleExpContext ctx) { return visitChildren(ctx); } 139 | /** 140 | * {@inheritDoc} 141 | * 142 | *

The default implementation returns the result of calling 143 | * {@link #visitChildren} on {@code ctx}.

144 | */ 145 | @Override public T visitBlockStmt(SysYParser.BlockStmtContext ctx) { return visitChildren(ctx); } 146 | /** 147 | * {@inheritDoc} 148 | * 149 | *

The default implementation returns the result of calling 150 | * {@link #visitChildren} on {@code ctx}.

151 | */ 152 | @Override public T visitIfStmt(SysYParser.IfStmtContext ctx) { return visitChildren(ctx); } 153 | /** 154 | * {@inheritDoc} 155 | * 156 | *

The default implementation returns the result of calling 157 | * {@link #visitChildren} on {@code ctx}.

158 | */ 159 | @Override public T visitWhileStmt(SysYParser.WhileStmtContext ctx) { return visitChildren(ctx); } 160 | /** 161 | * {@inheritDoc} 162 | * 163 | *

The default implementation returns the result of calling 164 | * {@link #visitChildren} on {@code ctx}.

165 | */ 166 | @Override public T visitBreakStmt(SysYParser.BreakStmtContext ctx) { return visitChildren(ctx); } 167 | /** 168 | * {@inheritDoc} 169 | * 170 | *

The default implementation returns the result of calling 171 | * {@link #visitChildren} on {@code ctx}.

172 | */ 173 | @Override public T visitContinueStmt(SysYParser.ContinueStmtContext ctx) { return visitChildren(ctx); } 174 | /** 175 | * {@inheritDoc} 176 | * 177 | *

The default implementation returns the result of calling 178 | * {@link #visitChildren} on {@code ctx}.

179 | */ 180 | @Override public T visitReturnStmt(SysYParser.ReturnStmtContext ctx) { return visitChildren(ctx); } 181 | /** 182 | * {@inheritDoc} 183 | * 184 | *

The default implementation returns the result of calling 185 | * {@link #visitChildren} on {@code ctx}.

186 | */ 187 | @Override public T visitLValExp(SysYParser.LValExpContext ctx) { return visitChildren(ctx); } 188 | /** 189 | * {@inheritDoc} 190 | * 191 | *

The default implementation returns the result of calling 192 | * {@link #visitChildren} on {@code ctx}.

193 | */ 194 | @Override public T visitUnaryExp(SysYParser.UnaryExpContext ctx) { return visitChildren(ctx); } 195 | /** 196 | * {@inheritDoc} 197 | * 198 | *

The default implementation returns the result of calling 199 | * {@link #visitChildren} on {@code ctx}.

200 | */ 201 | @Override public T visitParenExp(SysYParser.ParenExpContext ctx) { return visitChildren(ctx); } 202 | /** 203 | * {@inheritDoc} 204 | * 205 | *

The default implementation returns the result of calling 206 | * {@link #visitChildren} on {@code ctx}.

207 | */ 208 | @Override public T visitAddExp(SysYParser.AddExpContext ctx) { return visitChildren(ctx); } 209 | /** 210 | * {@inheritDoc} 211 | * 212 | *

The default implementation returns the result of calling 213 | * {@link #visitChildren} on {@code ctx}.

214 | */ 215 | @Override public T visitMulExp(SysYParser.MulExpContext ctx) { return visitChildren(ctx); } 216 | /** 217 | * {@inheritDoc} 218 | * 219 | *

The default implementation returns the result of calling 220 | * {@link #visitChildren} on {@code ctx}.

221 | */ 222 | @Override public T visitFuncCallExp(SysYParser.FuncCallExpContext ctx) { return visitChildren(ctx); } 223 | /** 224 | * {@inheritDoc} 225 | * 226 | *

The default implementation returns the result of calling 227 | * {@link #visitChildren} on {@code ctx}.

228 | */ 229 | @Override public T visitNumExp(SysYParser.NumExpContext ctx) { return visitChildren(ctx); } 230 | /** 231 | * {@inheritDoc} 232 | * 233 | *

The default implementation returns the result of calling 234 | * {@link #visitChildren} on {@code ctx}.

235 | */ 236 | @Override public T visitCompareExp(SysYParser.CompareExpContext ctx) { return visitChildren(ctx); } 237 | /** 238 | * {@inheritDoc} 239 | * 240 | *

The default implementation returns the result of calling 241 | * {@link #visitChildren} on {@code ctx}.

242 | */ 243 | @Override public T visitRelationExp(SysYParser.RelationExpContext ctx) { return visitChildren(ctx); } 244 | /** 245 | * {@inheritDoc} 246 | * 247 | *

The default implementation returns the result of calling 248 | * {@link #visitChildren} on {@code ctx}.

249 | */ 250 | @Override public T visitCondExp(SysYParser.CondExpContext ctx) { return visitChildren(ctx); } 251 | /** 252 | * {@inheritDoc} 253 | * 254 | *

The default implementation returns the result of calling 255 | * {@link #visitChildren} on {@code ctx}.

256 | */ 257 | @Override public T visitAndExp(SysYParser.AndExpContext ctx) { return visitChildren(ctx); } 258 | /** 259 | * {@inheritDoc} 260 | * 261 | *

The default implementation returns the result of calling 262 | * {@link #visitChildren} on {@code ctx}.

263 | */ 264 | @Override public T visitOrExp(SysYParser.OrExpContext ctx) { return visitChildren(ctx); } 265 | /** 266 | * {@inheritDoc} 267 | * 268 | *

The default implementation returns the result of calling 269 | * {@link #visitChildren} on {@code ctx}.

270 | */ 271 | @Override public T visitLVal(SysYParser.LValContext ctx) { return visitChildren(ctx); } 272 | /** 273 | * {@inheritDoc} 274 | * 275 | *

The default implementation returns the result of calling 276 | * {@link #visitChildren} on {@code ctx}.

277 | */ 278 | @Override public T visitNumber(SysYParser.NumberContext ctx) { return visitChildren(ctx); } 279 | /** 280 | * {@inheritDoc} 281 | * 282 | *

The default implementation returns the result of calling 283 | * {@link #visitChildren} on {@code ctx}.

284 | */ 285 | @Override public T visitUnaryOp(SysYParser.UnaryOpContext ctx) { return visitChildren(ctx); } 286 | /** 287 | * {@inheritDoc} 288 | * 289 | *

The default implementation returns the result of calling 290 | * {@link #visitChildren} on {@code ctx}.

291 | */ 292 | @Override public T visitFuncRParams(SysYParser.FuncRParamsContext ctx) { return visitChildren(ctx); } 293 | /** 294 | * {@inheritDoc} 295 | * 296 | *

The default implementation returns the result of calling 297 | * {@link #visitChildren} on {@code ctx}.

298 | */ 299 | @Override public T visitParam(SysYParser.ParamContext ctx) { return visitChildren(ctx); } 300 | /** 301 | * {@inheritDoc} 302 | * 303 | *

The default implementation returns the result of calling 304 | * {@link #visitChildren} on {@code ctx}.

305 | */ 306 | @Override public T visitConstExp(SysYParser.ConstExpContext ctx) { return visitChildren(ctx); } 307 | } -------------------------------------------------------------------------------- /src/SysYParserVisitor.java: -------------------------------------------------------------------------------- 1 | // Generated from ./src/SysYParser.g4 by ANTLR 4.9.1 2 | import org.antlr.v4.runtime.tree.ParseTreeVisitor; 3 | 4 | /** 5 | * This interface defines a complete generic visitor for a parse tree produced 6 | * by {@link SysYParser}. 7 | * 8 | * @param The return type of the visit operation. Use {@link Void} for 9 | * operations with no return type. 10 | */ 11 | public interface SysYParserVisitor extends ParseTreeVisitor { 12 | /** 13 | * Visit a parse tree produced by {@link SysYParser#program}. 14 | * @param ctx the parse tree 15 | * @return the visitor result 16 | */ 17 | T visitProgram(SysYParser.ProgramContext ctx); 18 | /** 19 | * Visit a parse tree produced by {@link SysYParser#compUnit}. 20 | * @param ctx the parse tree 21 | * @return the visitor result 22 | */ 23 | T visitCompUnit(SysYParser.CompUnitContext ctx); 24 | /** 25 | * Visit a parse tree produced by {@link SysYParser#decl}. 26 | * @param ctx the parse tree 27 | * @return the visitor result 28 | */ 29 | T visitDecl(SysYParser.DeclContext ctx); 30 | /** 31 | * Visit a parse tree produced by {@link SysYParser#constDecl}. 32 | * @param ctx the parse tree 33 | * @return the visitor result 34 | */ 35 | T visitConstDecl(SysYParser.ConstDeclContext ctx); 36 | /** 37 | * Visit a parse tree produced by {@link SysYParser#bType}. 38 | * @param ctx the parse tree 39 | * @return the visitor result 40 | */ 41 | T visitBType(SysYParser.BTypeContext ctx); 42 | /** 43 | * Visit a parse tree produced by {@link SysYParser#constDef}. 44 | * @param ctx the parse tree 45 | * @return the visitor result 46 | */ 47 | T visitConstDef(SysYParser.ConstDefContext ctx); 48 | /** 49 | * Visit a parse tree produced by {@link SysYParser#constInitVal}. 50 | * @param ctx the parse tree 51 | * @return the visitor result 52 | */ 53 | T visitConstInitVal(SysYParser.ConstInitValContext ctx); 54 | /** 55 | * Visit a parse tree produced by {@link SysYParser#varDecl}. 56 | * @param ctx the parse tree 57 | * @return the visitor result 58 | */ 59 | T visitVarDecl(SysYParser.VarDeclContext ctx); 60 | /** 61 | * Visit a parse tree produced by {@link SysYParser#varDef}. 62 | * @param ctx the parse tree 63 | * @return the visitor result 64 | */ 65 | T visitVarDef(SysYParser.VarDefContext ctx); 66 | /** 67 | * Visit a parse tree produced by {@link SysYParser#initVal}. 68 | * @param ctx the parse tree 69 | * @return the visitor result 70 | */ 71 | T visitInitVal(SysYParser.InitValContext ctx); 72 | /** 73 | * Visit a parse tree produced by {@link SysYParser#funcDef}. 74 | * @param ctx the parse tree 75 | * @return the visitor result 76 | */ 77 | T visitFuncDef(SysYParser.FuncDefContext ctx); 78 | /** 79 | * Visit a parse tree produced by {@link SysYParser#funcType}. 80 | * @param ctx the parse tree 81 | * @return the visitor result 82 | */ 83 | T visitFuncType(SysYParser.FuncTypeContext ctx); 84 | /** 85 | * Visit a parse tree produced by {@link SysYParser#funcFParams}. 86 | * @param ctx the parse tree 87 | * @return the visitor result 88 | */ 89 | T visitFuncFParams(SysYParser.FuncFParamsContext ctx); 90 | /** 91 | * Visit a parse tree produced by {@link SysYParser#funcFParam}. 92 | * @param ctx the parse tree 93 | * @return the visitor result 94 | */ 95 | T visitFuncFParam(SysYParser.FuncFParamContext ctx); 96 | /** 97 | * Visit a parse tree produced by {@link SysYParser#block}. 98 | * @param ctx the parse tree 99 | * @return the visitor result 100 | */ 101 | T visitBlock(SysYParser.BlockContext ctx); 102 | /** 103 | * Visit a parse tree produced by {@link SysYParser#blockItem}. 104 | * @param ctx the parse tree 105 | * @return the visitor result 106 | */ 107 | T visitBlockItem(SysYParser.BlockItemContext ctx); 108 | /** 109 | * Visit a parse tree produced by the {@code assignment} 110 | * labeled alternative in {@link SysYParser#stmt}. 111 | * @param ctx the parse tree 112 | * @return the visitor result 113 | */ 114 | T visitAssignment(SysYParser.AssignmentContext ctx); 115 | /** 116 | * Visit a parse tree produced by the {@code possibleExp} 117 | * labeled alternative in {@link SysYParser#stmt}. 118 | * @param ctx the parse tree 119 | * @return the visitor result 120 | */ 121 | T visitPossibleExp(SysYParser.PossibleExpContext ctx); 122 | /** 123 | * Visit a parse tree produced by the {@code blockStmt} 124 | * labeled alternative in {@link SysYParser#stmt}. 125 | * @param ctx the parse tree 126 | * @return the visitor result 127 | */ 128 | T visitBlockStmt(SysYParser.BlockStmtContext ctx); 129 | /** 130 | * Visit a parse tree produced by the {@code ifStmt} 131 | * labeled alternative in {@link SysYParser#stmt}. 132 | * @param ctx the parse tree 133 | * @return the visitor result 134 | */ 135 | T visitIfStmt(SysYParser.IfStmtContext ctx); 136 | /** 137 | * Visit a parse tree produced by the {@code whileStmt} 138 | * labeled alternative in {@link SysYParser#stmt}. 139 | * @param ctx the parse tree 140 | * @return the visitor result 141 | */ 142 | T visitWhileStmt(SysYParser.WhileStmtContext ctx); 143 | /** 144 | * Visit a parse tree produced by the {@code breakStmt} 145 | * labeled alternative in {@link SysYParser#stmt}. 146 | * @param ctx the parse tree 147 | * @return the visitor result 148 | */ 149 | T visitBreakStmt(SysYParser.BreakStmtContext ctx); 150 | /** 151 | * Visit a parse tree produced by the {@code continueStmt} 152 | * labeled alternative in {@link SysYParser#stmt}. 153 | * @param ctx the parse tree 154 | * @return the visitor result 155 | */ 156 | T visitContinueStmt(SysYParser.ContinueStmtContext ctx); 157 | /** 158 | * Visit a parse tree produced by the {@code returnStmt} 159 | * labeled alternative in {@link SysYParser#stmt}. 160 | * @param ctx the parse tree 161 | * @return the visitor result 162 | */ 163 | T visitReturnStmt(SysYParser.ReturnStmtContext ctx); 164 | /** 165 | * Visit a parse tree produced by the {@code lValExp} 166 | * labeled alternative in {@link SysYParser#exp}. 167 | * @param ctx the parse tree 168 | * @return the visitor result 169 | */ 170 | T visitLValExp(SysYParser.LValExpContext ctx); 171 | /** 172 | * Visit a parse tree produced by the {@code unaryExp} 173 | * labeled alternative in {@link SysYParser#exp}. 174 | * @param ctx the parse tree 175 | * @return the visitor result 176 | */ 177 | T visitUnaryExp(SysYParser.UnaryExpContext ctx); 178 | /** 179 | * Visit a parse tree produced by the {@code parenExp} 180 | * labeled alternative in {@link SysYParser#exp}. 181 | * @param ctx the parse tree 182 | * @return the visitor result 183 | */ 184 | T visitParenExp(SysYParser.ParenExpContext ctx); 185 | /** 186 | * Visit a parse tree produced by the {@code addExp} 187 | * labeled alternative in {@link SysYParser#exp}. 188 | * @param ctx the parse tree 189 | * @return the visitor result 190 | */ 191 | T visitAddExp(SysYParser.AddExpContext ctx); 192 | /** 193 | * Visit a parse tree produced by the {@code mulExp} 194 | * labeled alternative in {@link SysYParser#exp}. 195 | * @param ctx the parse tree 196 | * @return the visitor result 197 | */ 198 | T visitMulExp(SysYParser.MulExpContext ctx); 199 | /** 200 | * Visit a parse tree produced by the {@code funcCallExp} 201 | * labeled alternative in {@link SysYParser#exp}. 202 | * @param ctx the parse tree 203 | * @return the visitor result 204 | */ 205 | T visitFuncCallExp(SysYParser.FuncCallExpContext ctx); 206 | /** 207 | * Visit a parse tree produced by the {@code numExp} 208 | * labeled alternative in {@link SysYParser#exp}. 209 | * @param ctx the parse tree 210 | * @return the visitor result 211 | */ 212 | T visitNumExp(SysYParser.NumExpContext ctx); 213 | /** 214 | * Visit a parse tree produced by the {@code compareExp} 215 | * labeled alternative in {@link SysYParser#cond}. 216 | * @param ctx the parse tree 217 | * @return the visitor result 218 | */ 219 | T visitCompareExp(SysYParser.CompareExpContext ctx); 220 | /** 221 | * Visit a parse tree produced by the {@code relationExp} 222 | * labeled alternative in {@link SysYParser#cond}. 223 | * @param ctx the parse tree 224 | * @return the visitor result 225 | */ 226 | T visitRelationExp(SysYParser.RelationExpContext ctx); 227 | /** 228 | * Visit a parse tree produced by the {@code condExp} 229 | * labeled alternative in {@link SysYParser#cond}. 230 | * @param ctx the parse tree 231 | * @return the visitor result 232 | */ 233 | T visitCondExp(SysYParser.CondExpContext ctx); 234 | /** 235 | * Visit a parse tree produced by the {@code andExp} 236 | * labeled alternative in {@link SysYParser#cond}. 237 | * @param ctx the parse tree 238 | * @return the visitor result 239 | */ 240 | T visitAndExp(SysYParser.AndExpContext ctx); 241 | /** 242 | * Visit a parse tree produced by the {@code orExp} 243 | * labeled alternative in {@link SysYParser#cond}. 244 | * @param ctx the parse tree 245 | * @return the visitor result 246 | */ 247 | T visitOrExp(SysYParser.OrExpContext ctx); 248 | /** 249 | * Visit a parse tree produced by {@link SysYParser#lVal}. 250 | * @param ctx the parse tree 251 | * @return the visitor result 252 | */ 253 | T visitLVal(SysYParser.LValContext ctx); 254 | /** 255 | * Visit a parse tree produced by {@link SysYParser#number}. 256 | * @param ctx the parse tree 257 | * @return the visitor result 258 | */ 259 | T visitNumber(SysYParser.NumberContext ctx); 260 | /** 261 | * Visit a parse tree produced by {@link SysYParser#unaryOp}. 262 | * @param ctx the parse tree 263 | * @return the visitor result 264 | */ 265 | T visitUnaryOp(SysYParser.UnaryOpContext ctx); 266 | /** 267 | * Visit a parse tree produced by {@link SysYParser#funcRParams}. 268 | * @param ctx the parse tree 269 | * @return the visitor result 270 | */ 271 | T visitFuncRParams(SysYParser.FuncRParamsContext ctx); 272 | /** 273 | * Visit a parse tree produced by {@link SysYParser#param}. 274 | * @param ctx the parse tree 275 | * @return the visitor result 276 | */ 277 | T visitParam(SysYParser.ParamContext ctx); 278 | /** 279 | * Visit a parse tree produced by {@link SysYParser#constExp}. 280 | * @param ctx the parse tree 281 | * @return the visitor result 282 | */ 283 | T visitConstExp(SysYParser.ConstExpContext ctx); 284 | } -------------------------------------------------------------------------------- /src/Type/ArrayType.java: -------------------------------------------------------------------------------- 1 | package Type; 2 | 3 | public class ArrayType implements Type { 4 | public Type elementType; 5 | int elementCount; 6 | 7 | public ArrayType(int elementCount, Type elementType) { 8 | this.elementCount = elementCount; 9 | this.elementType = elementType; 10 | } 11 | 12 | @Override 13 | public String toString() { 14 | return "array(" + elementType + ")"; 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/Type/FunctionType.java: -------------------------------------------------------------------------------- 1 | package Type; 2 | 3 | import java.util.ArrayList; 4 | 5 | public class FunctionType implements Type { 6 | Type retType; 7 | ArrayList paramsType; 8 | 9 | public FunctionType(Type retType, ArrayList paramsType) { 10 | this.retType = retType; 11 | this.paramsType = paramsType; 12 | } 13 | 14 | public Type getRetType() { 15 | return retType; 16 | } 17 | 18 | public ArrayList getParamsType() { 19 | return paramsType; 20 | } 21 | 22 | @Override 23 | public String toString() { 24 | StringBuilder ret = new StringBuilder(retType + "("); 25 | for (Type type : paramsType) { 26 | ret.append(type.toString()); 27 | } 28 | ret.append(")"); 29 | return ret.toString(); 30 | } 31 | 32 | 33 | } 34 | -------------------------------------------------------------------------------- /src/Type/Type.java: -------------------------------------------------------------------------------- 1 | package Type; 2 | 3 | public interface Type { 4 | } -------------------------------------------------------------------------------- /src/gen/SysYLexer.interp: -------------------------------------------------------------------------------- 1 | token literal names: 2 | null 3 | 'const' 4 | 'int' 5 | 'void' 6 | 'if' 7 | 'else' 8 | 'while' 9 | 'break' 10 | 'continue' 11 | 'return' 12 | '+' 13 | '-' 14 | '*' 15 | '/' 16 | '%' 17 | '=' 18 | '==' 19 | '!=' 20 | '<' 21 | '>' 22 | '<=' 23 | '>=' 24 | '!' 25 | '&&' 26 | '||' 27 | '(' 28 | ')' 29 | '{' 30 | '}' 31 | '[' 32 | ']' 33 | ',' 34 | ';' 35 | null 36 | null 37 | null 38 | null 39 | null 40 | 41 | token symbolic names: 42 | null 43 | CONST 44 | INT 45 | VOID 46 | IF 47 | ELSE 48 | WHILE 49 | BREAK 50 | CONTINUE 51 | RETURN 52 | PLUS 53 | MINUS 54 | MUL 55 | DIV 56 | MOD 57 | ASSIGN 58 | EQ 59 | NEQ 60 | LT 61 | GT 62 | LE 63 | GE 64 | NOT 65 | AND 66 | OR 67 | L_PAREN 68 | R_PAREN 69 | L_BRACE 70 | R_BRACE 71 | L_BRACKT 72 | R_BRACKT 73 | COMMA 74 | SEMICOLON 75 | IDENT 76 | INTEGR_CONST 77 | WS 78 | SL_COMMENT 79 | ML_COMMENT 80 | 81 | rule names: 82 | CONST 83 | INT 84 | VOID 85 | IF 86 | ELSE 87 | WHILE 88 | BREAK 89 | CONTINUE 90 | RETURN 91 | PLUS 92 | MINUS 93 | MUL 94 | DIV 95 | MOD 96 | ASSIGN 97 | EQ 98 | NEQ 99 | LT 100 | GT 101 | LE 102 | GE 103 | NOT 104 | AND 105 | OR 106 | L_PAREN 107 | R_PAREN 108 | L_BRACE 109 | R_BRACE 110 | L_BRACKT 111 | R_BRACKT 112 | COMMA 113 | SEMICOLON 114 | IDENT 115 | INTEGR_CONST 116 | DECIMAL 117 | OCTAL 118 | HEXADECIMAL 119 | WS 120 | SL_COMMENT 121 | ML_COMMENT 122 | LETTER 123 | DIGIT 124 | 125 | channel names: 126 | DEFAULT_TOKEN_CHANNEL 127 | HIDDEN 128 | 129 | mode names: 130 | DEFAULT_MODE 131 | 132 | atn: 133 | [4, 0, 37, 271, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7, 20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25, 2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2, 31, 7, 31, 2, 32, 7, 32, 2, 33, 7, 33, 2, 34, 7, 34, 2, 35, 7, 35, 2, 36, 7, 36, 2, 37, 7, 37, 2, 38, 7, 38, 2, 39, 7, 39, 2, 40, 7, 40, 2, 41, 7, 41, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 1, 4, 1, 4, 1, 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-------------------------------------------------------------------------------- 1 | CONST=1 2 | INT=2 3 | VOID=3 4 | IF=4 5 | ELSE=5 6 | WHILE=6 7 | BREAK=7 8 | CONTINUE=8 9 | RETURN=9 10 | PLUS=10 11 | MINUS=11 12 | MUL=12 13 | DIV=13 14 | MOD=14 15 | ASSIGN=15 16 | EQ=16 17 | NEQ=17 18 | LT=18 19 | GT=19 20 | LE=20 21 | GE=21 22 | NOT=22 23 | AND=23 24 | OR=24 25 | L_PAREN=25 26 | R_PAREN=26 27 | L_BRACE=27 28 | R_BRACE=28 29 | L_BRACKT=29 30 | R_BRACKT=30 31 | COMMA=31 32 | SEMICOLON=32 33 | IDENT=33 34 | INTEGR_CONST=34 35 | WS=35 36 | SL_COMMENT=36 37 | ML_COMMENT=37 38 | 'const'=1 39 | 'int'=2 40 | 'void'=3 41 | 'if'=4 42 | 'else'=5 43 | 'while'=6 44 | 'break'=7 45 | 'continue'=8 46 | 'return'=9 47 | '+'=10 48 | '-'=11 49 | '*'=12 50 | '/'=13 51 | '%'=14 52 | '='=15 53 | '=='=16 54 | '!='=17 55 | '<'=18 56 | '>'=19 57 | '<='=20 58 | '>='=21 59 | '!'=22 60 | '&&'=23 61 | '||'=24 62 | '('=25 63 | ')'=26 64 | '{'=27 65 | '}'=28 66 | '['=29 67 | ']'=30 68 | ','=31 69 | ';'=32 70 | -------------------------------------------------------------------------------- /submit.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | set -e 3 | 4 | # Change USERNAME, PASSWORD 5 | USERNAME="201250172" 6 | PASSWORD="123456" 7 | 8 | echo "--------Begin to Submit--------" 9 | 10 | if [[ $USERNAME == "20xxxxxxx" || $PASSWORD == "xxxxxxxxx" ]]; then 11 | echo "Fail. You need to change USERNAME and PASSWORD" 12 | exit -1 13 | fi 14 | 15 | COURSE=PTC2022 16 | MODULE=$(git rev-parse --abbrev-ref HEAD | tr '[a-z]' '[A-Z]') 17 | WORKSPACE=$(basename $(realpath .)) 18 | FILE=submit.zip 19 | 20 | #if [[ $(git status --porcelain) ]]; then 21 | # echo "Error: Git repository is dirty." 22 | # echo "Commit all your changes before submitting." 23 | # echo "Hint: run 'git status' to show changed files." 24 | # exit -1 25 | #fi 26 | 27 | # Construct assignmentId 28 | ANTLRTMP="labN" 29 | 30 | BRANCH=$(git symbolic-ref --short -q HEAD) 31 | NUMBER=$(echo $BRANCH | tr -cd "[0-9]") 32 | ID=$(echo $ANTLRTMP | sed "s/N/${NUMBER}/g") 33 | 34 | echo "In branch: $BRANCH " 35 | echo "Submit to assignment: $ID" 36 | 37 | 38 | # Compress the whole folder instead of git storage only. 39 | cd .. 40 | rm -f $FILE 41 | zip -r "$FILE" $(ls -d "$WORKSPACE/.git" 2>/dev/null) > /dev/null 42 | if [ $? -ne 0 ]; then 43 | echo "" 44 | echo "Fail to zip for submit.zip!" 45 | else 46 | echo "" 47 | echo "generate submit.zip" 48 | fi 49 | 50 | 51 | # construct json for cul 52 | TMPRAW='{"username":"XXXUSERXXX","password":"YYYPWDYYY"}' 53 | DATARAW=$(echo $TMPRAW | sed "s/XXXUSERXXX/$USERNAME/g" | sed "s/YYYPWDYYY/$PASSWORD/g") 54 | URL=http://47.122.3.40:28300 55 | 56 | # extract token 57 | RAW=$(curl "$URL/auth/login" \ 58 | -H 'Content-Type: application/json' \ 59 | --data-raw $DATARAW ) 60 | TOKEN=$(echo $RAW | sed 's/,/\n/g' | grep "token" | sed 's/:/\n/g' | sed '1d' | sed 's/}//g' | sed 's/\"//g') 61 | 62 | RES=$(curl "$URL/submissions" \ 63 | -H "Authorization: Bearer $TOKEN" \ 64 | -F "assignmentId=$ID" \ 65 | -F "file=@$FILE" ) 66 | 67 | FLAG0=$? 68 | 69 | TIME=$(echo $RES | sed 's/,/\n/g' | grep "createdAt" | sed 's/:/\n/g' | sed '1d' | sed 's/}//g' | sed 's/\"//g') 70 | 71 | if [[ $FLAG0 -ne 0 || -z $TIME ]]; then 72 | echo "" 73 | echo "T_T Commit Fail! T_T" 74 | else 75 | echo "" 76 | echo "^v^ Commit Success! ^v^ " 77 | fi 78 | 79 | -------------------------------------------------------------------------------- /target/classes/LLVMIRVisitor.class: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/EagleBear2002/Compiler-Lab/3c31797ca142ffc5116fc77f51d1477f1c9433ba/target/classes/LLVMIRVisitor.class -------------------------------------------------------------------------------- /target/classes/Main.class: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/EagleBear2002/Compiler-Lab/3c31797ca142ffc5116fc77f51d1477f1c9433ba/target/classes/Main.class -------------------------------------------------------------------------------- /target/classes/Scope/BaseScope.class: -------------------------------------------------------------------------------- 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-------------------------------------------------------------------------------- 1 | int main(){ 2 | int i = 1; 3 | int j = ~i; 4 | } 5 | -------------------------------------------------------------------------------- /tests/lab2-test1.sysy: -------------------------------------------------------------------------------- 1 | const int c = 10; 2 | int main() { 3 | int a = 0x10; 4 | const int b = 9; 5 | return a; 6 | } 7 | -------------------------------------------------------------------------------- /tests/lab2-test2.sysy: -------------------------------------------------------------------------------- 1 | int main(){ 2 | int a[]; 3 | return a][; 4 | } 5 | -------------------------------------------------------------------------------- /tests/lab3-rename-test.sysy: -------------------------------------------------------------------------------- 1 | int a() { 2 | return 10; 3 | } 4 | 5 | int main() { 6 | int a = 3; 7 | int b = 4; 8 | a = 5; 9 | return a; 10 | } 11 | -------------------------------------------------------------------------------- /tests/lab3-type-test1.sysy: -------------------------------------------------------------------------------- 1 | int a(){ 2 | return 1; 3 | } 4 | 5 | int a(){ 6 | return 0; 7 | } 8 | 9 | int main(){ 10 | b = c(); 11 | int test1; 12 | int test1; 13 | int array[2] = {0,0}; 14 | test1 = array; 15 | test1 = a + array; 16 | test1 = a(1); 17 | test1 = test1[0]; 18 | test1(); 19 | a = 1; 20 | return a; 21 | } 22 | -------------------------------------------------------------------------------- /tests/lab3-type-test2.sysy: -------------------------------------------------------------------------------- 1 | int globalVar; 2 | int globalArray[2]; 3 | 4 | void voidFunc1() { 5 | return; 6 | } 7 | 8 | void voidFunc2(int param1) { 9 | return 1; // type 7 10 | } 11 | 12 | void voidFunc3(int param1, int param2[]) { 13 | return param1; // type 7 14 | } 15 | 16 | int intFunc1() { 17 | return 1; 18 | } 19 | 20 | int intFunc1(int param) { // type 4 21 | return intFunc1(); // valid 22 | } 23 | 24 | int intFunc2(int param1) { 25 | return intFunc2(param1); // valid 26 | } 27 | 28 | int intFunc3(int param1, int param2[]) { 29 | return param2; // type 7 30 | } 31 | 32 | int voidFunc1() { // type 4 33 | 34 | } 35 | 36 | int test(int i, int i){ // type 3 37 | return test(i + 1); // valid 38 | } 39 | 40 | int main(){ 41 | a = 3; // type 1 42 | int b = func(); // type 2 43 | int b; // type 3 44 | 45 | int c[3][3][3]; 46 | int d[2][2]; 47 | c[1] = d; // valid 48 | c[1][1] = d; // type 5 49 | c[1][1] = d; // type 5 50 | int f = voidFunc1() + intFunc1(); // type 6 51 | int g = intFunc3(b); // type 8 52 | int h = intFunc3(b, globalArray); // valid 53 | 54 | int i = b[5]; // type 9 55 | int j = c(); // type 10 56 | c = 6; // type 5 57 | voidFunc1 = 6; // type 11 58 | 59 | if (1 || globalArray || 2 || d) { // type 6 for 3 times 60 | 61 | } 62 | 63 | int k = voidFunc1(); // type 5 64 | int l = voidFunc(); // type 2 65 | int m = k; 66 | return z(); // type 2 67 | } -------------------------------------------------------------------------------- /tests/lab4-test1.sysy: -------------------------------------------------------------------------------- 1 | int main(){ 2 | return -2147483647 / -1; 3 | } 4 | -------------------------------------------------------------------------------- /tests/lab4-test2.sysy: -------------------------------------------------------------------------------- 1 | int main(){ 2 | return 3+2*5; 3 | } 4 | -------------------------------------------------------------------------------- /tests/lab5-test1.sysy: -------------------------------------------------------------------------------- 1 | int f(int i){ 2 | return i; 3 | } 4 | 5 | void g() { 6 | int j = 1 + 5; 7 | return; 8 | } 9 | 10 | void func() { 11 | } 12 | 13 | int main(){ 14 | int a = 1; 15 | int array[5] = {1, 2, 3}; 16 | array[3] = a; 17 | array[4] = a + 5; 18 | g(); 19 | return f(a * array[4]); 20 | } 21 | -------------------------------------------------------------------------------- /tests/lab5-test2.sysy: -------------------------------------------------------------------------------- 1 | int main(){ 2 | int a[3] = {1,2,3}; 3 | return a[1]; 4 | } 5 | -------------------------------------------------------------------------------- /tests/lab6-test1.sysy: -------------------------------------------------------------------------------- 1 | int a[3] = { 0,1,1 }; 2 | int main() { 3 | a[0] = !a[0]; 4 | if (a[0]) { 5 | a[1] = 2; 6 | } 7 | return a[1]; 8 | } 9 | -------------------------------------------------------------------------------- /tests/lab6-test2.sysy: -------------------------------------------------------------------------------- 1 | int a[10] = {}; 2 | 3 | int f(int a) { 4 | return 0; 5 | } 6 | 7 | int main() { 8 | a[1] = 1; 9 | return 0; 10 | } -------------------------------------------------------------------------------- /tests/lab7-test1.sysy: -------------------------------------------------------------------------------- 1 | int a[10]={5,4,3,2,1,8,6,2,4,7}; 2 | 3 | int main(){ 4 | int i=0,j=0; 5 | int min=0; 6 | while(i<9){ 7 | j=i; 8 | min=i; 9 | while(j<9){ 10 | if(a[j]