Clang AST dump

設計一個 main.cpp ，嘗試用 clang 把 AST 印出來，兩種指令都可以，如果有引入其他 lib 可能會 dump 出一堆東西(如 #include<time.h>)，畢竟 clang 預設指令不含 preprocessor，不會去認這是不是 standard library

#define NUM 10
int   REG_A;
float REG_B      = NUM;
int   REG_C[NUM] = {0};

extern void autog();

void autoGen(const float &in) {
	REG_A = NUM;
}

clang-check.exe -ast-dump main.cpp --

TranslationUnitDecl 0x351a40 <<invalid sloc>> <invalid sloc>
|-TypedefDecl 0x351f90 <<invalid sloc>> <invalid sloc> implicit __int128_t '__int128'
| `-BuiltinType 0x351ca0 '__int128'
|-TypedefDecl 0x352000 <<invalid sloc>> <invalid sloc> implicit __uint128_t 'unsigned __int128'
| `-BuiltinType 0x351cc0 'unsigned __int128'
|-TypedefDecl 0x352098 <<invalid sloc>> <invalid sloc> implicit __builtin_ms_va_list 'char *'
| `-PointerType 0x352060 'char *'
|   `-BuiltinType 0x351ae0 'char'
|-TypedefDecl 0x352100 <<invalid sloc>> <invalid sloc> implicit __builtin_va_list 'char *'
| `-PointerType 0x352060 'char *'
|   `-BuiltinType 0x351ae0 'char'
|-VarDecl 0x352170 <D:\workspace\clangparser\Release\main.cpp:2:1, col:7> col:7 used REG_A 'int'
|-VarDecl 0x352238 <line:3:1, line:1:13> line:3:7 REG_B 'float' cinit
| `-ImplicitCastExpr 0x3522c0 <line:1:13> 'float' <IntegralToFloating>
|   `-IntegerLiteral 0x3522a0 <col:13> 'int' 10
|-VarDecl 0x352360 <line:4:1, col:22> col:7 REG_C 'int [10]' cinit
| `-InitListExpr 0x352430 <col:20, col:22> 'int [10]'
|   |-array filler
|   | `-ImplicitValueInitExpr 0x352478 <<invalid sloc>> 'int'
|   `-IntegerLiteral 0x3523c8 <col:21> 'int' 0
|-FunctionDecl 0x3524e0 <line:6:1, col:19> col:13 autog 'void (void)' extern
`-FunctionDecl 0x3526a0 <line:8:1, line:10:1> line:8:6 autoGen 'void (const float &)'
  |-ParmVarDecl 0x3525d0 <col:14, col:27> col:27 in 'const float &'
  `-CompoundStmt 0x4d6e300 <col:31, line:10:1>
    `-BinaryOperator 0x4d6e2d8 <line:9:2, line:1:13> 'int' lvalue '='
      |-DeclRefExpr 0x4d6e290 <line:9:2> 'int' lvalue Var 0x352170 'REG_A' 'int'
      `-IntegerLiteral 0x4d6e2b8 <line:1:13> 'int' 10

clang -Xclang -ast-dump -fsyntax-only main.cpp

TranslationUnitDecl 0x37a6ed0 <<invalid sloc>> <invalid sloc>
|-TypedefDecl 0x37a7420 <<invalid sloc>> <invalid sloc> implicit __int128_t '__int128'
| `-BuiltinType 0x37a7130 '__int128'
|-TypedefDecl 0x37a7490 <<invalid sloc>> <invalid sloc> implicit __uint128_t 'unsigned __int128'
| `-BuiltinType 0x37a7150 'unsigned __int128'
|-TypedefDecl 0x37a7528 <<invalid sloc>> <invalid sloc> implicit __builtin_ms_va_list 'char *'
| `-PointerType 0x37a74f0 'char *'
|   `-BuiltinType 0x37a6f70 'char'
|-TypedefDecl 0x37a7590 <<invalid sloc>> <invalid sloc> implicit __builtin_va_list 'char *'
| `-PointerType 0x37a74f0 'char *'
|   `-BuiltinType 0x37a6f70 'char'
|-VarDecl 0x37a7600 <main.cpp:2:1, col:7> col:7 used REG_A 'int'
|-VarDecl 0x37a76c8 <line:3:1, line:1:13> line:3:7 REG_B 'float' cinit
| `-ImplicitCastExpr 0x37a7750 <line:1:13> 'float' <IntegralToFloating>
|   `-IntegerLiteral 0x37a7730 <col:13> 'int' 10
|-VarDecl 0x37a77f0 <line:4:1, col:22> col:7 REG_C 'int [10]' cinit
| `-InitListExpr 0x37a78c0 <col:20, col:22> 'int [10]'
|   |-array filler
|   | `-ImplicitValueInitExpr 0x37a7908 <<invalid sloc>> 'int'
|   `-IntegerLiteral 0x37a7858 <col:21> 'int' 0
|-FunctionDecl 0x37a7970 <line:6:1, col:19> col:13 autog 'void (void)' extern
`-FunctionDecl 0x37a7b30 <line:8:1, line:10:1> line:8:6 autoGen 'void (const float &)'
  |-ParmVarDecl 0x37a7a60 <col:14, col:27> col:27 in 'const float &'
  `-CompoundStmt 0x5362c40 <col:31, line:10:1>
    `-BinaryOperator 0x5362c18 <line:9:2, line:1:13> 'int' lvalue '='
      |-DeclRefExpr 0x5362bd0 <line:9:2> 'int' lvalue Var 0x37a7600 'REG_A' 'int'
      `-IntegerLiteral 0x5362bf8 <line:1:13> 'int' 10