About SLangCC¶

Small Language Compiler for Classroom (SLangCC) is a small C-like language compiler for classroom use. It is implemented with Flex, Bison, and C++.

Pipeline¶

.sl source
  → lexer and Bison parser
  → abstract syntax tree
  → semantic analysis and symbol table
  → SLangIR
  → x86-64 assembly
  → GCC/Clang and the SLang runtime
  → native executable

The repository separates these stages into lexer/, parser/, semantic_analyzer/, SLangIR/, codegen/, and driver/. Optional compiler flags expose the AST, checked AST, IR, and assembly for study.

Teaching focus¶

The language is intentionally compact while covering a complete compilation workflow: tokenization, parsing, AST construction, name and type analysis, intermediate representation, control-flow lowering, machine-code generation, and native linking.

Current target¶

The generated assembly targets x86-64 Linux using the System V ABI. SLangCC uses GCC when available and otherwise tries Clang.