[clang-tidy] Add the abseil-duration-subtraction check
Summary:
This check uses the context of a subtraction expression as well as knowledge
about the Abseil Time types, to infer the type of the second operand of some
subtraction expressions in Duration conversions. For example:
absl::ToDoubleSeconds(duration) - foo
can become
absl::ToDoubleSeconds(duration - absl::Seconds(foo))
This ensures that time calculations are done in the proper domain, and also
makes it easier to further deduce the types of the second operands to these
expressions.
Reviewed By: JonasToth
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D55245
git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@349073 91177308-0d34-0410-b5e6-96231b3b80d8
11 files changed
