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/*
* Copyright (C) 2015-2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ErrorType.h"
#include "Nodes.h"
namespace JSC {
class JSModuleRecord;
class SourceCode;
class ScriptFetchParameters;
class ModuleAnalyzer {
WTF_MAKE_NONCOPYABLE(ModuleAnalyzer);
WTF_FORBID_HEAP_ALLOCATION;
public:
ModuleAnalyzer(JSGlobalObject*, const Identifier& moduleKey, const SourceCode&, const VariableEnvironment& declaredVariables, const VariableEnvironment& lexicalVariables, CodeFeatures);
Expected<JSModuleRecord*, std::tuple<ErrorType, String>> analyze(ModuleProgramNode&);
VM& vm() { return m_vm; }
JSModuleRecord* moduleRecord() { return m_moduleRecord; }
void appendRequestedModule(const Identifier&, RefPtr<ScriptFetchParameters>&&);
void fail(std::tuple<ErrorType, String>&& errorMessage) { m_errorMessage = errorMessage; }
private:
void exportVariable(ModuleProgramNode&, const RefPtr<UniquedStringImpl>&, const VariableEnvironmentEntry&);
VM& m_vm;
JSModuleRecord* m_moduleRecord;
IdentifierSet m_requestedModules;
std::tuple<ErrorType, String> m_errorMessage;
};
} // namespace JSC
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