ModuleLoaderObject.cpp [plain text]
#include "config.h"
#include "ModuleLoaderObject.h"
#include "BuiltinNames.h"
#include "CodeProfiling.h"
#include "Error.h"
#include "Exception.h"
#include "JSCInlines.h"
#include "JSGlobalObjectFunctions.h"
#include "JSInternalPromise.h"
#include "JSInternalPromiseDeferred.h"
#include "JSMap.h"
#include "JSModuleEnvironment.h"
#include "JSModuleRecord.h"
#include "ModuleAnalyzer.h"
#include "Nodes.h"
#include "Parser.h"
#include "ParserError.h"
namespace JSC {
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectParseModule(ExecState*);
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectRequestedModules(ExecState*);
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectEvaluate(ExecState*);
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectModuleDeclarationInstantiation(ExecState*);
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectResolve(ExecState*);
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectFetch(ExecState*);
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectTranslate(ExecState*);
static EncodedJSValue JSC_HOST_CALL moduleLoaderObjectInstantiate(ExecState*);
}
#include "ModuleLoaderObject.lut.h"
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(ModuleLoaderObject);
const ClassInfo ModuleLoaderObject::s_info = { "ModuleLoader", &Base::s_info, &moduleLoaderObjectTable, CREATE_METHOD_TABLE(ModuleLoaderObject) };
ModuleLoaderObject::ModuleLoaderObject(VM& vm, Structure* structure)
: JSNonFinalObject(vm, structure)
{
}
void ModuleLoaderObject::finishCreation(VM& vm, JSGlobalObject* globalObject)
{
Base::finishCreation(vm);
ASSERT(inherits(info()));
putDirectWithoutTransition(vm, Identifier::fromString(&vm, "registry"), JSMap::create(vm, globalObject->mapStructure()));
}
static String printableModuleKey(ExecState* exec, JSValue key)
{
if (key.isString() || key.isSymbol())
return key.toPropertyKey(exec).impl();
return exec->propertyNames().emptyIdentifier.impl();
}
JSValue ModuleLoaderObject::provide(ExecState* exec, JSValue key, Status status, const String& source)
{
JSObject* function = jsCast<JSObject*>(get(exec, exec->propertyNames().builtinNames().providePublicName()));
CallData callData;
CallType callType = JSC::getCallData(function, callData);
ASSERT(callType != CallType::None);
MarkedArgumentBuffer arguments;
arguments.append(key);
arguments.append(jsNumber(status));
arguments.append(jsString(exec, source));
return call(exec, function, callType, callData, this, arguments);
}
JSInternalPromise* ModuleLoaderObject::loadAndEvaluateModule(ExecState* exec, JSValue moduleName, JSValue referrer)
{
JSObject* function = jsCast<JSObject*>(get(exec, exec->propertyNames().builtinNames().loadAndEvaluateModulePublicName()));
CallData callData;
CallType callType = JSC::getCallData(function, callData);
ASSERT(callType != CallType::None);
MarkedArgumentBuffer arguments;
arguments.append(moduleName);
arguments.append(referrer);
return jsCast<JSInternalPromise*>(call(exec, function, callType, callData, this, arguments));
}
JSInternalPromise* ModuleLoaderObject::loadModule(ExecState* exec, JSValue moduleName, JSValue referrer)
{
JSObject* function = jsCast<JSObject*>(get(exec, exec->propertyNames().builtinNames().loadModulePublicName()));
CallData callData;
CallType callType = JSC::getCallData(function, callData);
ASSERT(callType != CallType::None);
MarkedArgumentBuffer arguments;
arguments.append(moduleName);
arguments.append(referrer);
return jsCast<JSInternalPromise*>(call(exec, function, callType, callData, this, arguments));
}
JSInternalPromise* ModuleLoaderObject::linkAndEvaluateModule(ExecState* exec, JSValue moduleKey)
{
JSObject* function = jsCast<JSObject*>(get(exec, exec->propertyNames().builtinNames().linkAndEvaluateModulePublicName()));
CallData callData;
CallType callType = JSC::getCallData(function, callData);
ASSERT(callType != CallType::None);
MarkedArgumentBuffer arguments;
arguments.append(moduleKey);
return jsCast<JSInternalPromise*>(call(exec, function, callType, callData, this, arguments));
}
JSInternalPromise* ModuleLoaderObject::resolve(ExecState* exec, JSValue name, JSValue referrer)
{
if (Options::dumpModuleLoadingState())
dataLog("Loader [resolve] ", printableModuleKey(exec, name), "\n");
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
if (globalObject->globalObjectMethodTable()->moduleLoaderResolve)
return globalObject->globalObjectMethodTable()->moduleLoaderResolve(globalObject, exec, name, referrer);
JSInternalPromiseDeferred* deferred = JSInternalPromiseDeferred::create(exec, globalObject);
deferred->resolve(exec, name);
return deferred->promise();
}
JSInternalPromise* ModuleLoaderObject::fetch(ExecState* exec, JSValue key)
{
if (Options::dumpModuleLoadingState())
dataLog("Loader [fetch] ", printableModuleKey(exec, key), "\n");
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
if (globalObject->globalObjectMethodTable()->moduleLoaderFetch)
return globalObject->globalObjectMethodTable()->moduleLoaderFetch(globalObject, exec, key);
JSInternalPromiseDeferred* deferred = JSInternalPromiseDeferred::create(exec, globalObject);
String moduleKey = key.toString(exec)->value(exec);
if (exec->hadException()) {
JSValue exception = exec->exception()->value();
exec->clearException();
deferred->reject(exec, exception);
return deferred->promise();
}
deferred->reject(exec, createError(exec, makeString("Could not open the module '", moduleKey, "'.")));
return deferred->promise();
}
JSInternalPromise* ModuleLoaderObject::translate(ExecState* exec, JSValue key, JSValue payload)
{
if (Options::dumpModuleLoadingState())
dataLog("Loader [translate] ", printableModuleKey(exec, key), "\n");
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
if (globalObject->globalObjectMethodTable()->moduleLoaderTranslate)
return globalObject->globalObjectMethodTable()->moduleLoaderTranslate(globalObject, exec, key, payload);
JSInternalPromiseDeferred* deferred = JSInternalPromiseDeferred::create(exec, globalObject);
deferred->resolve(exec, payload);
return deferred->promise();
}
JSInternalPromise* ModuleLoaderObject::instantiate(ExecState* exec, JSValue key, JSValue source)
{
if (Options::dumpModuleLoadingState())
dataLog("Loader [instantiate] ", printableModuleKey(exec, key), "\n");
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
if (globalObject->globalObjectMethodTable()->moduleLoaderInstantiate)
return globalObject->globalObjectMethodTable()->moduleLoaderInstantiate(globalObject, exec, key, source);
JSInternalPromiseDeferred* deferred = JSInternalPromiseDeferred::create(exec, globalObject);
deferred->resolve(exec, jsUndefined());
return deferred->promise();
}
JSValue ModuleLoaderObject::evaluate(ExecState* exec, JSValue key, JSValue moduleRecordValue)
{
if (Options::dumpModuleLoadingState())
dataLog("Loader [evaluate] ", printableModuleKey(exec, key), "\n");
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
if (globalObject->globalObjectMethodTable()->moduleLoaderEvaluate)
return globalObject->globalObjectMethodTable()->moduleLoaderEvaluate(globalObject, exec, key, moduleRecordValue);
JSModuleRecord* moduleRecord = jsDynamicCast<JSModuleRecord*>(moduleRecordValue);
if (!moduleRecord)
return jsUndefined();
return moduleRecord->evaluate(exec);
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectParseModule(ExecState* exec)
{
VM& vm = exec->vm();
const Identifier moduleKey = exec->argument(0).toPropertyKey(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
String source = exec->argument(1).toString(exec)->value(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
SourceCode sourceCode = makeSource(source, moduleKey.impl());
CodeProfiling profile(sourceCode);
ParserError error;
std::unique_ptr<ModuleProgramNode> moduleProgramNode = parse<ModuleProgramNode>(
&vm, sourceCode, Identifier(), JSParserBuiltinMode::NotBuiltin,
JSParserStrictMode::Strict, SourceParseMode::ModuleAnalyzeMode, SuperBinding::NotNeeded, error);
if (error.isValid()) {
throwVMError(exec, error.toErrorObject(exec->lexicalGlobalObject(), sourceCode));
return JSValue::encode(jsUndefined());
}
ASSERT(moduleProgramNode);
ModuleAnalyzer moduleAnalyzer(exec, moduleKey, sourceCode, moduleProgramNode->varDeclarations(), moduleProgramNode->lexicalVariables());
JSModuleRecord* moduleRecord = moduleAnalyzer.analyze(*moduleProgramNode);
return JSValue::encode(moduleRecord);
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectRequestedModules(ExecState* exec)
{
JSModuleRecord* moduleRecord = jsDynamicCast<JSModuleRecord*>(exec->argument(0));
if (!moduleRecord)
return JSValue::encode(constructEmptyArray(exec, nullptr));
JSArray* result = constructEmptyArray(exec, nullptr, moduleRecord->requestedModules().size());
if (UNLIKELY(exec->hadException()))
JSValue::encode(jsUndefined());
size_t i = 0;
for (auto& key : moduleRecord->requestedModules())
result->putDirectIndex(exec, i++, jsString(exec, key.get()));
return JSValue::encode(result);
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectModuleDeclarationInstantiation(ExecState* exec)
{
JSModuleRecord* moduleRecord = jsDynamicCast<JSModuleRecord*>(exec->argument(0));
if (!moduleRecord)
return JSValue::encode(jsUndefined());
if (Options::dumpModuleLoadingState())
dataLog("Loader [link] ", moduleRecord->moduleKey(), "\n");
moduleRecord->link(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectResolve(ExecState* exec)
{
ModuleLoaderObject* loader = jsDynamicCast<ModuleLoaderObject*>(exec->thisValue());
if (!loader)
return JSValue::encode(jsUndefined());
return JSValue::encode(loader->resolve(exec, exec->argument(0), exec->argument(1)));
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectFetch(ExecState* exec)
{
ModuleLoaderObject* loader = jsDynamicCast<ModuleLoaderObject*>(exec->thisValue());
if (!loader)
return JSValue::encode(jsUndefined());
return JSValue::encode(loader->fetch(exec, exec->argument(0)));
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectTranslate(ExecState* exec)
{
ModuleLoaderObject* loader = jsDynamicCast<ModuleLoaderObject*>(exec->thisValue());
if (!loader)
return JSValue::encode(jsUndefined());
return JSValue::encode(loader->translate(exec, exec->argument(0), exec->argument(1)));
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectInstantiate(ExecState* exec)
{
ModuleLoaderObject* loader = jsDynamicCast<ModuleLoaderObject*>(exec->thisValue());
if (!loader)
return JSValue::encode(jsUndefined());
return JSValue::encode(loader->instantiate(exec, exec->argument(0), exec->argument(1)));
}
EncodedJSValue JSC_HOST_CALL moduleLoaderObjectEvaluate(ExecState* exec)
{
ModuleLoaderObject* loader = jsDynamicCast<ModuleLoaderObject*>(exec->thisValue());
if (!loader)
return JSValue::encode(jsUndefined());
return JSValue::encode(loader->evaluate(exec, exec->argument(0), exec->argument(1)));
}
}