Zalathar 63c04f05e6 coverage: Extract hole spans from HIR instead of MIR
This makes it possible to treat more kinds of nested item/code as holes,
instead of being restricted to closures.
2024-07-08 21:22:56 +10:00
..
2024-06-26 00:06:27 +02:00
2024-06-26 00:06:27 +02:00
2024-04-20 00:34:40 +08:00

The tests in this directory are shared by two different test modes, and can be run in multiple different ways:

  • ./x.py test coverage-map (compiles to LLVM IR and checks coverage mappings)
  • ./x.py test coverage-run (runs a test binary and checks its coverage report)
  • ./x.py test coverage (runs both coverage-map and coverage-run)

Maintenance note

These tests can be sensitive to small changes in MIR spans or MIR control flow, especially in HIR-to-MIR lowering or MIR optimizations.

If you haven't touched the coverage code directly, and the tests still pass in coverage-run mode, then it should usually be OK to just re-bless the mappings as necessary with ./x.py test coverage-map --bless, without worrying too much about the exact changes.