This c_compiler is based on:

• 低レイヤを知りたい人のためのCコンパイラ作成入門
• [YouTube] Cコンパイラ作ってみる

... and get help from these books as reference.

• コンパイラ: 作りながら学ぶ
• コンピュータシステムの理論と実装 ―モダンなコンピュータの作り方
• Go言語でつくるインタプリタ

Directry structure

.
├── src
│   ├── baricc.h      # all func decl are placed here
│   ├── util.c        # where to put common functions
│   ├── main.c        # entry point
│   ├── tokenize.c    #
│   ├── parse.c       #
│   └── codegen.c     #
│
├── test
│   └── test.c        # place all test cases here
│ 
├── scripts
│   ├── test.sh       # build binary by using cc and run test
│   ├── self.sh       # build binary by itself
│   └── self_test.sh  # run test by using self compiled binary
│
├── Dockerfile
├── docker-compose.yml
├── Makefile
└── sandbox           # for exploring C. not used by src. (but used by test)

Start development environment

$ docker-compose up -d
$ docker-compose exec app bash

Run test

$ make test

Self Compile

• baricc.h
• tokenize.c
• parse.c
• codegen.c
• util.c
• main.c

make self > tmp.s
# use cc as linker.
cc -static -o baricc_self tmp.s

./baricc_self baricc.h tokenize.c parse.c codegen.c util.c

supported feature

• +, -, *, /
• ==, !=, <, >, <=, >=
• !
• ||, &&
• a++, a--, ++a, --a
• bit: ~, |, &, ^
• for, while, if
• int, char
• void(implemented just as an alias to int..)
• pointer: ref, deref
• array
• sizeof
• enum
• struct
• break
• continue
• witch
• escape in string
• #include
  • you can write #include, but this compiler just ignores all macro statement.
• nested type
• typedef struct A A;
• ternary operator

not supported features

• static
• support ++, -- operation for pointer
• rest parameters
• macro
• stdout, stderr, FILE