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/*
* Copyright (C) 2015-2022 Apple Inc. All Rights Reserved.
* Copyright (C) 2016 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* 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 "JSObject.h"
namespace JSC {
class JSInternalPromise;
class JSModuleNamespaceObject;
class JSModuleRecord;
class SourceCode;
class JSModuleLoader final : public JSNonFinalObject {
public:
using Base = JSNonFinalObject;
static constexpr unsigned StructureFlags = Base::StructureFlags;
template<typename CellType, SubspaceAccess>
static GCClient::IsoSubspace* subspaceFor(VM& vm)
{
STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(JSModuleLoader, Base);
return &vm.plainObjectSpace();
}
enum Status {
Fetch = 1,
Instantiate,
Satisfy,
Link,
Ready,
};
static JSModuleLoader* create(JSGlobalObject* globalObject, VM& vm, Structure* structure)
{
JSModuleLoader* object = new (NotNull, allocateCell<JSModuleLoader>(vm)) JSModuleLoader(vm, structure);
object->finishCreation(globalObject, vm);
return object;
}
DECLARE_INFO;
inline static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
// APIs to control the module loader.
JSValue provideFetch(JSGlobalObject*, JSValue key, const SourceCode&);
JSInternalPromise* loadAndEvaluateModule(JSGlobalObject*, JSValue moduleName, JSValue parameters, JSValue scriptFetcher);
JSInternalPromise* loadModule(JSGlobalObject*, JSValue moduleName, JSValue parameters, JSValue scriptFetcher);
JSValue linkAndEvaluateModule(JSGlobalObject*, JSValue moduleKey, JSValue scriptFetcher);
JSInternalPromise* requestImportModule(JSGlobalObject*, const Identifier&, JSValue referrer, JSValue parameters, JSValue scriptFetcher);
// Platform dependent hooked APIs.
JSInternalPromise* importModule(JSGlobalObject*, JSString* moduleName, JSValue parameters, const SourceOrigin& referrer);
Identifier resolve(JSGlobalObject*, JSValue name, JSValue referrer, JSValue scriptFetcher);
JSInternalPromise* fetch(JSGlobalObject*, JSValue key, JSValue parameters, JSValue scriptFetcher);
JSObject* createImportMetaProperties(JSGlobalObject*, JSValue key, JSModuleRecord*, JSValue scriptFetcher);
// Additional platform dependent hooked APIs.
JSValue evaluate(JSGlobalObject*, JSValue key, JSValue moduleRecord, JSValue scriptFetcher, JSValue sentValue, JSValue resumeMode);
JSValue evaluateNonVirtual(JSGlobalObject*, JSValue key, JSValue moduleRecord, JSValue scriptFetcher, JSValue sentValue, JSValue resumeMode);
// Utility functions.
JSModuleNamespaceObject* getModuleNamespaceObject(JSGlobalObject*, JSValue moduleRecord);
JSArray* dependencyKeysIfEvaluated(JSGlobalObject*, JSValue key);
private:
JSModuleLoader(VM&, Structure*);
void finishCreation(JSGlobalObject*, VM&);
};
} // namespace JSC
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