PyRust

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A lexer parser for Rust written in Python's PLY.

PyRust 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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## PyRust - A tool to parse Rust and produce Intermediate Code.

### Prerequisites:
- [PLY - v3.1.1](http://www.dabeaz.com/ply/)
- [Python - v3.x](https://www.python.org/download/releases/3.0/)

### Testing:
- Generate AST Nodes definitions in `./src/RustAST.py`: 
`$ ./src/_build_tables.py`
- Run tests:
 - All tests: 
`$ ./tools/test-all.sh`
 - Lexer Unit Tests: 
`$ ./tests/TestLexerAuto.py`
 - Lexer Manual Tests: 
`$ ./tests/TestLexerManual.py`
 - Symbol Table Test: 
`$ ./tests/TestSymbolTable.py ./tests/testFile2.rs 2`
 - Abstract Syntax Tree Test: 
`$ ./tests/TestAST.py ./tests/testFile1.rs`
 - Intermediate Code Generation Test: 
`$ ./tests/TestICGen.py ./tests/testFile1.rs`
- Clean project directory: 
`$ ./tools/clean.sh`

### TODO:
#### Lexical Analysis
- [x] Remove Comments.
- [x] Generate tokens.
- [x] Preload keywords into the symbol table.
- [x] Make an entry for the identifiers into the symbol table(if there exists an identifier with the same name in different scopes then construct symbol table per scope).
- [ ] Symbol table must contain entries for predefined routines like printf, scanf etc
#### Syntax Analysis
- [x] Write CFG for the entire program.
- [ ] ~If implementing parser by hand:~
	- [ ] ~Prefer RDP with backtracking.~
	- [ ] ~Perform translation at required places in the code for each non-terminal.~
- [x] If implementing using tool:
	- [x] Provide appropriate semantic rules.
#### Semantic Analysis
- [x] Take care of the primitive types and array types.
- [ ] ~Take care of coersions.~
- [x] Take care of Arithemetic expressions.
- [x] Concetrate on the looping construct choosen.
- [x] Update type and storage information into the symbol table.
- [x] Show Abstract Syntax tree(AST).
#### Intermediate Code Generation
- [x] Three address code generation
#### Optimizing Intermediate Code
- [x] Constant folding
- [x] Constant Propogation
- [ ] ~Common subexpression elimination (optional)~
- [ ] Dead code elimination
- [ ] ~Reducing temporaries (optional)~
- [x] Loop optimizations

PyRust

PyRust 최신버젼 다운로드

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PyRust 최신버젼 다운로드

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