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52 lines
1.7 KiB
C++
52 lines
1.7 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 <string>
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#include "Luau/TypeInfer.h"
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#include "Luau/BuiltinDefinitions.h"
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#include "Luau/ModuleResolver.h"
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#include "Luau/Common.h"
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LUAU_FASTINT(LuauTypeInferRecursionLimit)
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LUAU_FASTINT(LuauTypeInferTypePackLoopLimit)
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size)
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{
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FInt::LuauTypeInferRecursionLimit.value = 100;
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FInt::LuauTypeInferTypePackLoopLimit.value = 100;
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Luau::ParseOptions options;
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Luau::Allocator allocator;
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Luau::AstNameTable names(allocator);
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Luau::ParseResult parseResult = Luau::Parser::parse(reinterpret_cast<const char*>(Data), Size, names, allocator, options);
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// "static" here is to accelerate fuzzing process by only creating and populating the type environment once
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static Luau::NullModuleResolver moduleResolver;
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static Luau::InternalErrorReporter iceHandler;
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static Luau::TypeChecker sharedEnv(&moduleResolver, &iceHandler);
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static int once = (Luau::registerBuiltinTypes(sharedEnv), 1);
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(void)once;
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static int once2 = (Luau::freeze(sharedEnv.globalTypes), 1);
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(void)once2;
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if (parseResult.errors.empty())
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{
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Luau::SourceModule module;
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module.root = parseResult.root;
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module.mode = Luau::Mode::Nonstrict;
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Luau::TypeChecker typeck(&moduleResolver, &iceHandler);
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typeck.globalScope = sharedEnv.globalScope;
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try
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{
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typeck.check(module, Luau::Mode::Nonstrict);
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}
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catch (std::exception&)
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{
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// This catches internal errors that the type checker currently (unfortunately) throws in some cases
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}
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}
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return 0;
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}
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