[PATCH] D36664: [analyzer] Make StmtDataCollector customizable

[Alex Lorenz via Phabricator via cfe-commits]

arphaman added a subscriber: rsmith.
arphaman added a comment.

In https://reviews.llvm.org/D36664#841758, @teemperor wrote:

> Very well done, I really like this patch! I added a few remarks mostly about the comments that need some small adjusting.
>
> I'm wondering what would be a nice way of creating a StmtDataCollector that is faster but only works for single translation units (e.g. it only hashes the pointer values of decls instead of their qualified name)? The use case here would be Stmt::Profile and the CloneDetector which could be set to a single-TU-mode in the CloneChecker. For Stmt::Profile it would ensure we don't degrade performance from the current version, for the CloneChecker we probably get a reasonable performance boost (as the hashing is currently the last remaining bottle neck).
>
> @arphaman Any suggestions who could review/approve the additions to `AST/`?


I guess @rsmith, but he's usually busy. I don't think this patch requires some special approval though.

This patch adds support for things like literals and DeclRefExpr and MemberExpr, but they're untested. They should either be added in a follow-up patch or tested with an appropriate unittest in unittests/AST or unittests/Tooling.


https://reviews.llvm.org/D36664