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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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.. | ||
apicalls.lua | ||
assert.lua | ||
attrib.lua | ||
basic.lua | ||
bitwise.lua | ||
buffers.lua | ||
calls.lua | ||
clear.lua | ||
closure.lua | ||
constructs.lua | ||
coroutine.lua | ||
coverage.lua | ||
datetime.lua | ||
debug.lua | ||
debugger.lua | ||
errors.lua | ||
events.lua | ||
exceptions.lua | ||
gc.lua | ||
ifelseexpr.lua | ||
interrupt.lua | ||
iter.lua | ||
literals.lua | ||
locals.lua | ||
math.lua | ||
move.lua | ||
native.lua | ||
native_types.lua | ||
ndebug_upvalues.lua | ||
pcall.lua | ||
pm.lua | ||
safeenv.lua | ||
sort.lua | ||
strconv.lua | ||
stringinterp.lua | ||
strings.lua | ||
tables.lua | ||
tmerror.lua | ||
tpack.lua | ||
types.lua | ||
userdata.lua | ||
utf8.lua | ||
vararg.lua | ||
vector.lua |