[cfe-dev] [PATCH] Function redeclaration and PR2360
kremenek at apple.com
Tue May 27 08:44:07 PDT 2008
On May 25, 2008, at 2:32 AM, Eli Friedman wrote:
> This means that references to a function before a
> redeclaration refer to the old declaration, and references to a
> function after a redeclaration refer to the new declaration.
I like the idea of having multiple FunctionDecls, and this will be
useful for any client that wishes to perform source-level
transformations. For example, refactoring clients will need to know
the location of every function declaration corresponding to the same
One caveat: if a client inspects two separate DeclRefExprs, each one
referring to a different FunctionDecl for the same function, is there
a good, standard way to compare if they refer to the same function?
It would be nice if we didn't have to do a full traversal of the
"PreviousDeclaration" list for both FunctionDecls. From an efficiency
standpoint, the number of redeclarations is small, so doing the list
traversal itself might not matter, but it might be nice to have
something like a Decl::isEqual method that could be used to compare if
two Decls are "the same" from a semantic perspective.
More information about the cfe-dev