luau/tests/Fixture.h

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// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once
#include "Luau/Config.h"
#include "Luau/FileResolver.h"
#include "Luau/Frontend.h"
#include "Luau/IostreamHelpers.h"
#include "Luau/Linter.h"
#include "Luau/Location.h"
#include "Luau/ModuleResolver.h"
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#include "Luau/Scope.h"
#include "Luau/ToString.h"
#include "Luau/Type.h"
#include "IostreamOptional.h"
#include "ScopedFlags.h"
#include <string>
#include <unordered_map>
#include <optional>
namespace Luau
{
struct TypeChecker;
struct TestFileResolver
: FileResolver
, ModuleResolver
{
std::optional<ModuleInfo> resolveModuleInfo(const ModuleName& currentModuleName, const AstExpr& pathExpr) override;
const ModulePtr getModule(const ModuleName& moduleName) const override;
bool moduleExists(const ModuleName& moduleName) const override;
std::optional<SourceCode> readSource(const ModuleName& name) override;
std::optional<ModuleInfo> resolveModule(const ModuleInfo* context, AstExpr* expr) override;
std::string getHumanReadableModuleName(const ModuleName& name) const override;
std::optional<std::string> getEnvironmentForModule(const ModuleName& name) const override;
std::unordered_map<ModuleName, std::string> source;
std::unordered_map<ModuleName, SourceCode::Type> sourceTypes;
std::unordered_map<ModuleName, std::string> environments;
};
struct TestConfigResolver : ConfigResolver
{
Config defaultConfig;
std::unordered_map<ModuleName, Config> configFiles;
const Config& getConfig(const ModuleName& name) const override;
};
struct Fixture
{
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explicit Fixture(bool freeze = true, bool prepareAutocomplete = false);
~Fixture();
// Throws Luau::ParseErrors if the parse fails.
AstStatBlock* parse(const std::string& source, const ParseOptions& parseOptions = {});
CheckResult check(Mode mode, std::string source);
CheckResult check(const std::string& source);
LintResult lint(const std::string& source, const std::optional<LintOptions>& lintOptions = {});
Sync to upstream/release/568 (#865) * A small subset of control-flow refinements have been added to recognize type options that are unreachable after a conditional/unconditional code block. (Fixes https://github.com/Roblox/luau/issues/356). Some examples: ```lua local function f(x: string?) if not x then return end -- x is 'string' here end ``` Throwing calls like `error` or `assert(false)` instead of 'return' are also recognized. Existing complex refinements like type/typeof and tagged union checks are expected to work, among others. To enable this feature, `LuauTinyControlFlowAnalysis` exclusion has to be removed from `ExperimentalFlags.h`. If will become enabled unconditionally in the near future. * Linter has been integrated into the typechecker analysis so that type-aware lint warnings can work in any mode `Frontend::lint` methods were deprecated, `Frontend::check` has to be used instead with `runLintChecks` option set. Resulting lint warning are located inside `CheckResult`. * Fixed large performance drop and increased memory consumption when array is filled at an offset (Fixes https://github.com/Roblox/luau/issues/590) * Part of [Type error suppression RFC](https://github.com/Roblox/luau/blob/master/rfcs/type-error-suppression.md) was implemented making subtyping checks with `any` type transitive. --- In our work on the new type-solver: * `--!nocheck` mode no longer reports type errors * New solver will not be used for `--!nonstrict` modules until all issues with strict mode typechecking are fixed * Added control-flow aware type refinements mentioned earlier In native code generation: * `LOP_NAMECALL` has been translated to IR * `type` and `typeof` builtin fastcalls have been translated to IR/assembly * Additional steps were taken towards arm64 support
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LintResult lintModule(const ModuleName& moduleName, const std::optional<LintOptions>& lintOptions = {});
/// Parse with all language extensions enabled
ParseResult parseEx(const std::string& source, const ParseOptions& parseOptions = {});
ParseResult tryParse(const std::string& source, const ParseOptions& parseOptions = {});
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ParseResult matchParseError(const std::string& source, const std::string& message, std::optional<Location> location = std::nullopt);
// Verify a parse error occurs and the parse error message has the specified prefix
ParseResult matchParseErrorPrefix(const std::string& source, const std::string& prefix);
ModulePtr getMainModule();
SourceModule* getMainSourceModule();
std::optional<PrimitiveType::Type> getPrimitiveType(TypeId ty);
std::optional<TypeId> getType(const std::string& name);
TypeId requireType(const std::string& name);
TypeId requireType(const ModuleName& moduleName, const std::string& name);
TypeId requireType(const ModulePtr& module, const std::string& name);
TypeId requireType(const ScopePtr& scope, const std::string& name);
std::optional<TypeId> findTypeAtPosition(Position position);
TypeId requireTypeAtPosition(Position position);
std::optional<TypeId> findExpectedTypeAtPosition(Position position);
std::optional<TypeId> lookupType(const std::string& name);
std::optional<TypeId> lookupImportedType(const std::string& moduleAlias, const std::string& name);
TypeId requireTypeAlias(const std::string& name);
ScopedFastFlag sff_DebugLuauFreezeArena;
TestFileResolver fileResolver;
TestConfigResolver configResolver;
NullModuleResolver moduleResolver;
std::unique_ptr<SourceModule> sourceModule;
Frontend frontend;
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InternalErrorReporter ice;
NotNull<BuiltinTypes> builtinTypes;
std::string decorateWithTypes(const std::string& code);
void dumpErrors(std::ostream& os, const std::vector<TypeError>& errors);
void dumpErrors(const CheckResult& cr);
void dumpErrors(const ModulePtr& module);
void dumpErrors(const Module& module);
void validateErrors(const std::vector<TypeError>& errors);
std::string getErrors(const CheckResult& cr);
void registerTestTypes();
LoadDefinitionFileResult loadDefinition(const std::string& source);
};
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struct BuiltinsFixture : Fixture
{
BuiltinsFixture(bool freeze = true, bool prepareAutocomplete = false);
};
ModuleName fromString(std::string_view name);
template<typename T>
std::optional<T> get(const std::map<Name, T>& map, const Name& name)
{
auto it = map.find(name);
if (it != map.end())
return std::optional<T>(it->second);
else
return std::nullopt;
}
std::string rep(const std::string& s, size_t n);
bool isInArena(TypeId t, const TypeArena& arena);
void dumpErrors(const ModulePtr& module);
void dumpErrors(const Module& module);
void dump(const std::string& name, TypeId ty);
void dump(const std::vector<Constraint>& constraints);
std::optional<TypeId> lookupName(ScopePtr scope, const std::string& name); // Warning: This function runs in O(n**2)
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std::optional<TypeId> linearSearchForBinding(Scope* scope, const char* name);
void registerHiddenTypes(Frontend* frontend);
void createSomeClasses(Frontend* frontend);
} // namespace Luau
#define LUAU_REQUIRE_ERRORS(result) \
do \
{ \
auto&& r = (result); \
validateErrors(r.errors); \
REQUIRE(!r.errors.empty()); \
} while (false)
#define LUAU_REQUIRE_ERROR_COUNT(count, result) \
do \
{ \
auto&& r = (result); \
validateErrors(r.errors); \
REQUIRE_MESSAGE(count == r.errors.size(), getErrors(r)); \
} while (false)
#define LUAU_REQUIRE_NO_ERRORS(result) LUAU_REQUIRE_ERROR_COUNT(0, result)