[cfe-dev] [Patch] DeclContext printer

[Douglas Gregor]

Hello Zhongxing,

On Jan 10, 2009, at 7:09 AM, Zhongxing Xu wrote:

> Hi,
>
> Attached patch implements an initial framework of a  
> DeclContextPrinter. It can print DeclContext and its Decls in  
> indented format. An Example:
>
> $ cat 3.cpp
> class A {
>   int a;
>   void f();
> };
> void A::f() {
>   a = 3;
> }
>
> $ clang -print-decl-contexts 3.cpp
> [translation unit] 0x9754d7c
>     <typedef> __builtin_va_list
>     [class] A 0x9753310
>         <class> A 0x975ce20
>         <field> a
>         <c++ method> f
>         <c++ ctor> A
>         <c++ ctor> A
>         <c++ method> operator=
>         <c++ dtor> ~A
>     [c++ method] f [[0x9753310]]
>
> Some comments: '<>' indicates a declaration, '[]' indicates a  
> definition, '[[ ]]' displays the semantic DeclContext which is  
> different from the lexical DeclContext.
>
> This visualization should be helpful for DeclContext debugging.

Yes, this will definitely be useful for debugging. Please go ahead and  
commit!

	- Doug