[cfe-dev] Adding a FieldDecl

[Douglas Gregor]

On Feb 13, 2011, at 5:35 AM, Dimitrij Kotrev wrote:

> Hello,
> 
> i want to add a FieldDecl to a class/struct. For example an integer variable.
> So far my code looks like this:
> 
> clang::CXXRecordDecl* d;
> ...
> clang::ASTContext& astContext = d->getASTContext();
> clang::FieldDecl* fd = clang::FieldDecl::Create(
>    astContext,
>    d,
>    clang::SourceLocation(),
>    0 /*identifierinfo*/,
>    astContext.IntTy,
>    0 /*typesourceinfo*/,
>    0 /*bitwidth*/,
>    0 /*mutable*/
> );
> 
> But i'm missing some pieces. Where do i get the IdentifierInfo for my
> new field?

Use the get() function of the ASTContext's identifier table.

> The field
> should be called 'foo' for example. Where do i get the TypeSourceInfo?

You can fake a TypeSourceInfo using ASTContext's getTrivialTypeSourceInfo()

> Is it enough
> to specify the SourceLocation like this? Am i missing anything else?


It's usually best to have *some* SourceLocation information. You could re-use the source location of the class/struct.

	- Doug
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