[cfe-dev] Getting the pointer to an out-of-class VarDecl

[Mihai Draghicioiu]

Well, it seems that I can get a list of redeclarations for each VarDecl,
since they inherit Redeclarable<VarDecl>, but it also looks like only the
second VarDecl contains the first VarDecl as a redeclaration, whereas the
first VarDecl does not contain the second VarDecl as a redeclaration (only
itself). It looks like Redeclarations are added on as they are redeclared,
and are not added to previous Decls, although intuitively that would make
more sense.

So it still looks like I'll have to recurse the AST twice, in order to get
a pointer to the second VarDecl for the first VarDecl, but maybe someone
can still help with an idea on how to avoid that?

Cheers!

On Sun, Sep 28, 2014 at 7:42 PM, Mihai Draghicioiu <
mihai.draghicioiu at gmail.com> wrote:

> Hi guys. I'm trying to get a pointer to the last VarDecl from the first
> VarDecl, so I can access the initialization Expr. As you can see below,
> There are two VarDecls, and I'd like to get a pointer to the out-of-class
> one. Also, I can't figure out how the second VarDecl gets its parent
> pointer.
>
> I just hope I don't have to recurse the AST again each time.
>
> class Foo {
> 	static int poop;};
> int Foo::poop = 3;
>
>
> TranslationUnitDecl 0x4b6b060 <<invalid sloc>> <invalid sloc>
> |-TypedefDecl 0x4b6b5a0 <<invalid sloc>> <invalid sloc> implicit __int128_t '__int128'
> |-TypedefDecl 0x4b6b600 <<invalid sloc>> <invalid sloc> implicit __uint128_t 'unsigned __int128'
> |-TypedefDecl 0x4b6b9c0 <<invalid sloc>> <invalid sloc> implicit __builtin_va_list '__va_list_tag [1]'
> |-CXXRecordDecl 0x4b6ba10 </tmp/cxxXX38p7:1:1, line:3:1> line:1:7 class Foo definition
> | |-CXXRecordDecl 0x4b6bb20 <col:1, col:7> col:7 implicit class Foo
> | `-VarDecl 0x4b6bbc0 <line:2:2, col:13> col:13 poop 'int' static
> `-VarDecl 0x4b6bc50 parent 0x4b6ba10 prev 0x4b6bbc0 <line:5:1, col:17> col:10 poop 'int' cinit
>   `-IntegerLiteral 0x4b6bd00 <col:17> 'int' 3
>
>
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