[all-commits] [llvm/llvm-project] c88dee: [clang][dataflow] Add `MatchSwitch` utility library.

[Yitzhak Mandelbaum via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c88deef0a7218dd5c30500e7d3f58fc23283d3e5
      https://github.com/llvm/llvm-project/commit/c88deef0a7218dd5c30500e7d3f58fc23283d3e5
  Author: Yitzhak Mandelbaum <yitzhakm at google.com>
  Date:   2022-03-04 (Fri, 04 Mar 2022)

  Changed paths:
    A clang/include/clang/Analysis/FlowSensitive/MatchSwitch.h
    M clang/unittests/Analysis/FlowSensitive/CMakeLists.txt
    A clang/unittests/Analysis/FlowSensitive/MatchSwitchTest.cpp

  Log Message:
  -----------
  [clang][dataflow] Add `MatchSwitch` utility library.

Adds `MatchSwitch`, a library for simplifying implementation of transfer
functions. `MatchSwitch` supports constructing a "switch" statement, where each
case of the switch is defined by an AST matcher. The cases are considered in
order, like pattern matching in functional languages.

Differential Revision: https://reviews.llvm.org/D120900