[cfe-dev] one question about CIrewriter.cpp

[wolf5x]

They overload the methods of class RecursiveASTVisitor
(clang/AST/RecursiveASTVisitor.h) and are invoked during the TraverseDecl
process. The traverse starts at line 361: rv.TraverseDecl(*b);

More precisely, the VisitStmt/VisitFooStmt is called by
WalkUpFromStmt/WalkUpFromFooStmt methods, which is invoked in
TraverseStmt/TraverseFooStmt. You can look into "switch
(S->getStmtClass())" in TraverseStmt, and the macro DEF_TRAVERSE_STMT.

The Decl thing works in a similar way. DEF_TRAVERSE_DECL of specific decls
call TraverseStmt.

The BinaryOperator is a subclass of Expr, which is derived from Stmt.
See DEF_TRAVERSE_STMT(BinaryOperator ...

On Sun, Oct 28, 2012 at 10:16 PM, Rambo <hunanlwm at sina.cn> wrote:

> Hi,everybody
>
> I meet a trouble now.if you have a look at this page
> https://github.com/loarabia/Clang-tutorial
> <https://github.com/loarabia/Clang-tutorial>  and understand the program
> CIrewriter.cpp
> deeply,I may be ask you a question:How the  methods be invoked?The three
> methods is located at line 82-line 84. as follows.
> bool VisitStmt(Stmt *s);
> bool VisitFunctionDecl(FunctionDecl *f);
> Expr *VisitBinaryOperator(BinaryOperator *op);
>
> Thanks for any help to solve my problem or answer my questions! I am
> looking
> forward for you constructive feedback.
>
>
> Rambo
>
>
>
> --
> View this message in context:
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-- 
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 * Best Regards,
 * wolf5x
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