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Fix typechecker

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This commit is contained in:
Kampfkarren 2022-07-27 16:33:20 -07:00
parent 11787e8336
commit be781b5083
4 changed files with 3782 additions and 3762 deletions
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1
Analysis/include/Luau/TypeInfer.h
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@ -157,6 +157,7 @@ struct TypeChecker
WithPredicate<TypeId> checkExpr(const ScopePtr& scope, const AstExprTypeAssertion& expr);
WithPredicate<TypeId> checkExpr(const ScopePtr& scope, const AstExprError& expr);
WithPredicate<TypeId> checkExpr(const ScopePtr& scope, const AstExprIfElse& expr, std::optional<TypeId> expectedType = std::nullopt);
WithPredicate<TypeId> checkExpr(const ScopePtr& scope, const AstExprInterpString& expr);
TypeId checkExprTable(const ScopePtr& scope, const AstExprTable& expr, const std::vector<std::pair<TypeId, TypeId>>& fieldTypes,
std::optional<TypeId> expectedType);

10
Analysis/src/TypeInfer.cpp
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@ -1804,7 +1804,7 @@ WithPredicate<TypeId> TypeChecker::checkExpr(const ScopePtr& scope, const AstExp
else if (auto a = expr.as<AstExprIfElse>())
result = checkExpr(scope, *a, expectedType);
else if (auto a = expr.as<AstExprInterpString>())
result = {stringType};
result = checkExpr(scope, *a);
else
ice("Unhandled AstExpr?");
@ -3023,6 +3023,14 @@ WithPredicate<TypeId> TypeChecker::checkExpr(const ScopePtr& scope, const AstExp
return {types.size() == 1 ? types[0] : addType(UnionTypeVar{std::move(types)})};
}
WithPredicate<TypeId> TypeChecker::checkExpr(const ScopePtr& scope, const AstExprInterpString& expr)
{
for (AstExpr* expr : expr.expressions)
checkExpr(scope, *expr);
return {stringType};
}
TypeId TypeChecker::checkLValue(const ScopePtr& scope, const AstExpr& expr)
{
return checkLValueBinding(scope, expr);

7522
Compiler/src/Compiler.cpp
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File diff suppressed because it is too large Load diff

11
tests/TypeInfer.test.cpp
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@ -822,6 +822,17 @@ TEST_CASE_FIXTURE(Fixture, "tc_interpolated_string_basic")
LUAU_REQUIRE_NO_ERRORS(result);
}
TEST_CASE_FIXTURE(Fixture, "tc_interpolated_string_with_invalid_expression")
{
CheckResult result = check(R"(
local function f(x: number) end
local foo: string = `hello {f("uh oh")}`
)");
LUAU_REQUIRE_ERROR_COUNT(1, result);
}
/*
* If it wasn't instantly obvious, we have the fuzzer to thank for this gem of a test.
*