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# What's changed? - Record the location of properties for table types (closes #802) - Implement stricter UTF-8 validations as per the RFC (https://github.com/luau-lang/rfcs/pull/1) - Implement `buffer` as a new type in both the old and new solvers. - Changed errors produced by some `buffer` builtins to be a bit more generic to avoid platform-dependent error messages. - Fixed a bug where `Unifier` would copy some persistent types, tripping some internal assertions. - Type checking rules on relational operators is now a little bit more lax. - Improve dead code elimination for some `if` statements with complex always-false conditions ## New type solver - Dataflow analysis now generates phi nodes on exit of branches. - Dataflow analysis avoids producing a new definition for locals or properties that are not owned by that loop. - If a function parameter has been constrained to `never`, report errors at all uses of that parameter within that function. - Switch to using the new `Luau::Set` to replace `std::unordered_set` to alleviate some poor allocation characteristics which was negatively affecting overall performance. - Subtyping can now report many failing reasons instead of just the first one that we happened to find during the test. - Subtyping now also report reasons for type pack mismatches. - When visiting `if` statements or expressions, the resulting context are the common terms in both branches. ## Native codegen - Implement support for `buffer` builtins to its IR for x64 and A64. - Optimized `table.insert` by not inserting a table barrier if it is fastcalled with a constant. ## Internal Contributors Co-authored-by: Aaron Weiss <aaronweiss@roblox.com> Co-authored-by: Alexander McCord <amccord@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Arseny Kapoulkine <arseny@roblox.com> Co-authored-by: Aviral Goel <agoel@roblox.com> Co-authored-by: Lily Brown <lbrown@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> |
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| .. | ||
| lapi.cpp | ||
| lapi.h | ||
| laux.cpp | ||
| lbaselib.cpp | ||
| lbitlib.cpp | ||
| lbuffer.cpp | ||
| lbuffer.h | ||
| lbuflib.cpp | ||
| lbuiltins.cpp | ||
| lbuiltins.h | ||
| lbytecode.h | ||
| lcommon.h | ||
| lcorolib.cpp | ||
| ldblib.cpp | ||
| ldebug.cpp | ||
| ldebug.h | ||
| ldo.cpp | ||
| ldo.h | ||
| lfunc.cpp | ||
| lfunc.h | ||
| lgc.cpp | ||
| lgc.h | ||
| lgcdebug.cpp | ||
| linit.cpp | ||
| lmathlib.cpp | ||
| lmem.cpp | ||
| lmem.h | ||
| lnumprint.cpp | ||
| lnumutils.h | ||
| lobject.cpp | ||
| lobject.h | ||
| loslib.cpp | ||
| lperf.cpp | ||
| lstate.cpp | ||
| lstate.h | ||
| lstring.cpp | ||
| lstring.h | ||
| lstrlib.cpp | ||
| ltable.cpp | ||
| ltable.h | ||
| ltablib.cpp | ||
| ltm.cpp | ||
| ltm.h | ||
| ludata.cpp | ||
| ludata.h | ||
| lutf8lib.cpp | ||
| lvm.h | ||
| lvmexecute.cpp | ||
| lvmload.cpp | ||
| lvmutils.cpp | ||