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Sync to upstream/release/520 #427

Merged
merged 71 commits into from
Mar 24, 2022
Merged

Sync to upstream/release/520 #427

merged 71 commits into from
Mar 24, 2022

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zeux
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@zeux zeux commented Mar 24, 2022

  • Improve type errors when types from different modules have the same name
  • Improve type errors for argument count mismatch when the function is variadic
  • Improve type error explanation for table indexer type mismatches
  • Remove legacy Roblox-specific warnings from UnknownType lint
  • Significantly improve type checking performance for programs that have type errors with complex types
  • Slightly reduce the GC overhead by excluding metrics collection by default
  • Significantly improve pcall/resume performance on macOS when LUA_USE_LONGJMP is used (fixes Code with LUA_USE_LONGJMP=1 is ~9 times slower #425)

zeux and others added 30 commits November 4, 2021 19:12
Changes:
- Support for time tracing for analysis/compiler (not currently exposed
  through CLI)
- Support for type pack arguments in type aliases (#83)
- Basic support for require(path) in luau-analyze
- Add a lint warning for table.move with 0 index as part of
  TableOperation lint
- Remove last STL dependency from Luau.VM
- Minor VS2022 performance tuning

Co-authored-by: Rodactor <[email protected]>
- A series of major optimizations to type checking performance on complex
programs/types (up to two orders of magnitude speedup for programs
involving huge tagged unions)
- Fix a few issues encountered by UBSAN (and maybe fix s390x builds)
- Fix gcc-11 test builds
- Fix a rare corner case where luau_load wouldn't wake inactive threads
which could result in a use-after-free due to GC
- Fix CLI crash when error object that's not a string escapes to top level
This doesn't contain all changes for 507 yet but we might want to do the
Luau 0.507 release a bit earlier to end the year sooner.
This version isn't for release because we've skipped some internal
numbers due to year-end schedule changes, but it's better to merge
separately.
@zeux zeux merged commit 2c339d5 into master Mar 24, 2022
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Code with LUA_USE_LONGJMP=1 is ~9 times slower
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