[cfe-dev] Pinpointing VarDecl Location

[Nikola Smiljanic]

Hi Uri, start locations should be the same but as Hans said ranges aren't.
Doublecheck using -cc1 -ast-dump, and tell us what version of clang are you
using.


On Sat, Jul 26, 2014 at 2:10 AM, Hans Wennborg <hans at chromium.org> wrote:

> On Fri, Jul 25, 2014 at 9:04 AM, Uri Mann <umann at symantec.com> wrote:
> > Given:
> >
> > void f() {
> >   int a, b, c;
> > }
> >
> > I’m wondering if there’s a way to find the SourceLocation and/or
> SourceRange
> > of a, b and c?
> >
> > Using VarDecl::getSourceRange(), VarDecl::getStartLoc(), etc I get the
> same
> > values for all instance between the type (int) and the ;.
>
> Looking at the ast dump, it seems like a, b and c have the same start
> loc, but different end locations. Maybe you can use that?
>
> $ echo 'void f() { int a, b, c; }' | clang -cc1 -ast-dump -
> TranslationUnitDecl 0x5fa3fe0 <<invalid sloc>> <invalid sloc>
> |-TypedefDecl 0x5fa44e0 <<invalid sloc>> <invalid sloc> implicit
> __int128_t '__int128'
> |-TypedefDecl 0x5fa4540 <<invalid sloc>> <invalid sloc> implicit
> __uint128_t 'unsigned __int128'
> |-TypedefDecl 0x5fa4890 <<invalid sloc>> <invalid sloc> implicit
> __builtin_va_list '__va_list_tag [1]'
> `-FunctionDecl 0x5fa4930 <<stdin>:1:1, col:25> col:6 f 'void ()'
>   `-CompoundStmt 0x5fa4b50 <col:10, col:25>
>     `-DeclStmt 0x5fa4b38 <col:12, col:23>
>       |-VarDecl 0x5fa49e0 <col:12, col:16> col:16 a 'int'
>       |-VarDecl 0x5fa4a50 <col:12, col:19> col:19 b 'int'
>       `-VarDecl 0x5fa4ac0 <col:12, col:22> col:22 c 'int'
>
>  - Hans
>
> _______________________________________________
> cfe-dev mailing list
> cfe-dev at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-dev/attachments/20140726/8f64cd24/attachment.html>