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https://github.com/luau-lang/luau.git
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46110524ef
Co-authored-by: Rodactor <rodactor@roblox.com>
123 lines
3.1 KiB
C++
123 lines
3.1 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/TypeInfer.h"
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#include "Fixture.h"
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#include "ScopedFlags.h"
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#include "doctest.h"
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using namespace Luau;
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static void merge(TypeArena& arena, RefinementMap& l, const RefinementMap& r)
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{
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Luau::merge(l, r, [&arena](TypeId a, TypeId b) -> TypeId {
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// TODO: normalize here also.
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std::unordered_set<TypeId> s;
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if (auto utv = get<UnionTypeVar>(follow(a)))
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s.insert(begin(utv), end(utv));
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else
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s.insert(a);
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if (auto utv = get<UnionTypeVar>(follow(b)))
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s.insert(begin(utv), end(utv));
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else
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s.insert(b);
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std::vector<TypeId> options(s.begin(), s.end());
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return options.size() == 1 ? options[0] : arena.addType(UnionTypeVar{std::move(options)});
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});
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}
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TEST_SUITE_BEGIN("Predicate");
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TEST_CASE_FIXTURE(Fixture, "Luau_merge_hashmap_order")
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{
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ScopedFastFlag sff{"LuauOrPredicate", true};
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RefinementMap m{
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{"b", typeChecker.stringType},
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{"c", typeChecker.numberType},
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};
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RefinementMap other{
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{"a", typeChecker.stringType},
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{"b", typeChecker.stringType},
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{"c", typeChecker.booleanType},
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};
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TypeArena arena;
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merge(arena, m, other);
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REQUIRE_EQ(3, m.size());
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REQUIRE(m.count("a"));
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REQUIRE(m.count("b"));
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REQUIRE(m.count("c"));
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CHECK_EQ("string", toString(m["a"]));
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CHECK_EQ("string", toString(m["b"]));
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CHECK_EQ("boolean | number", toString(m["c"]));
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}
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TEST_CASE_FIXTURE(Fixture, "Luau_merge_hashmap_order2")
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{
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ScopedFastFlag sff{"LuauOrPredicate", true};
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RefinementMap m{
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{"a", typeChecker.stringType},
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{"b", typeChecker.stringType},
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{"c", typeChecker.numberType},
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};
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RefinementMap other{
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{"b", typeChecker.stringType},
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{"c", typeChecker.booleanType},
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};
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TypeArena arena;
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merge(arena, m, other);
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REQUIRE_EQ(3, m.size());
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REQUIRE(m.count("a"));
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REQUIRE(m.count("b"));
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REQUIRE(m.count("c"));
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CHECK_EQ("string", toString(m["a"]));
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CHECK_EQ("string", toString(m["b"]));
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CHECK_EQ("boolean | number", toString(m["c"]));
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}
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TEST_CASE_FIXTURE(Fixture, "one_map_has_overlap_at_end_whereas_other_has_it_in_start")
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{
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ScopedFastFlag sff{"LuauOrPredicate", true};
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RefinementMap m{
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{"a", typeChecker.stringType},
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{"b", typeChecker.numberType},
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{"c", typeChecker.booleanType},
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};
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RefinementMap other{
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{"c", typeChecker.stringType},
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{"d", typeChecker.numberType},
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{"e", typeChecker.booleanType},
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};
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TypeArena arena;
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merge(arena, m, other);
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REQUIRE_EQ(5, m.size());
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REQUIRE(m.count("a"));
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REQUIRE(m.count("b"));
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REQUIRE(m.count("c"));
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REQUIRE(m.count("d"));
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REQUIRE(m.count("e"));
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CHECK_EQ("string", toString(m["a"]));
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CHECK_EQ("number", toString(m["b"]));
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CHECK_EQ("boolean | string", toString(m["c"]));
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CHECK_EQ("number", toString(m["d"]));
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CHECK_EQ("boolean", toString(m["e"]));
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}
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TEST_SUITE_END();
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