ddcc added a comment. Even though there isn't a performance difference, I think it is semantically clearer since it is explicit that the value is unneeded.
The interface of ProgramState provides a `contains()` function that calls into `Contains()` of the underlying partial traits as part of its implementation. That function is present for `ImmutableSet` and `ImmutableList`, so it is inconsistent that `ImmutableMap` doesn't have it. I've been working on a Z3 constraint backend that uses this, though the implementation has been trickier than I expected. https://reviews.llvm.org/D26373 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
