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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>
63 lines
1.2 KiB
C++
63 lines
1.2 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#include "Luau/Set.h"
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#include "doctest.h"
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TEST_SUITE_BEGIN("SetTests");
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TEST_CASE("empty_set_size_0")
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{
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Luau::Set<int> s1{0};
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CHECK(s1.size() == 0);
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CHECK(s1.empty());
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}
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TEST_CASE("insertion_works_and_increases_size")
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{
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Luau::Set<int> s1{0};
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CHECK(s1.size() == 0);
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CHECK(s1.empty());
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s1.insert(1);
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CHECK(s1.contains(1));
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CHECK(s1.size() == 1);
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s1.insert(2);
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CHECK(s1.contains(2));
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CHECK(s1.size() == 2);
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}
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TEST_CASE("clear_resets_size")
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{
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Luau::Set<int> s1{0};
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s1.insert(1);
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s1.insert(2);
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REQUIRE(s1.size() == 2);
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s1.clear();
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CHECK(s1.size() == 0);
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CHECK(s1.empty());
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}
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TEST_CASE("erase_works_and_decreases_size")
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{
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Luau::Set<int> s1{0};
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s1.insert(1);
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s1.insert(2);
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CHECK(s1.size() == 2);
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CHECK(s1.contains(1));
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CHECK(s1.contains(2));
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s1.erase(1);
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CHECK(s1.size() == 1);
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CHECK(!s1.contains(1));
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CHECK(s1.contains(2));
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s1.erase(2);
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CHECK(s1.size() == 0);
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CHECK(s1.empty());
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CHECK(!s1.contains(1));
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CHECK(!s1.contains(2));
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}
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TEST_SUITE_END();
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