Recommended extensions in vscode:

• Yash
• C/C++ extension pack
• WSL

Run minimal example

Ensure you are in the top directory

make
build/compiler code/mex.c

The output will be something like

CompUnit {
  FunDef {
    SimpleType {
      int
    }
    main
    BlockStmt {
      RetStmt {
        IntExpr {
          0
        }
      }
    }
  }
}