Technical requirements

This chapter expects that you have a build of the clang executable. If you don't, please build it using the following command:

$ ninja clang

In addition, you can use the following command-line flag to print out the textual representation of AST:

$ clang -Xclang -ast-dump foo.c

For example, let's say foo.c contains the following content:

int foo(int c) { return c + 1; }

By using the -Xclang -ast-dump command-line flag, we can print out AST for foo.c:

TranslationUnitDecl 0x560f3929f5a8 <<invalid sloc>> <invalid sloc>
|…
`-FunctionDecl 0x560f392e1350 <foo.c:2:1, col:30> col:5 foo 'int (int)'
  |-ParmVarDecl 0x560f392e1280 <col:9, col:13> col:13 used c 'int'
  `-CompoundStmt 0x560f392e14c8 <col:16, col:30>
    `-ReturnStmt 0x560f392e14b8 <col:17, col:28>
      `-BinaryOperator 0x560f392e1498 &lt...