1  /*
 2   * Copyright (C) 2019 Apple Inc.  All rights reserved.
 3   *
 4   * Redistribution and use in source and binary forms, with or without
 5   * modification, are permitted provided that the following conditions
 6   * are met:
 7   * 1. Redistributions of source code must retain the above copyright
 8   *    notice, this list of conditions and the following disclaimer.
 9   * 2. Redistributions in binary form must reproduce the above copyright
10   *    notice, this list of conditions and the following disclaimer in the
11   *    documentation and/or other materials provided with the distribution.
12   *
13   * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24   */
25  
26  #pragma once
27  
28  #include "JSGlobalObject.h"
29  
30  OBJC_CLASS JSScript;
31  
32  namespace JSC {
33  
34  class JSAPIGlobalObject final : public JSGlobalObject {
35  public:
36      using Base = JSGlobalObject;
37  
38      DECLARE_EXPORT_INFO;
39      static const GlobalObjectMethodTable s_globalObjectMethodTable;
40  
41      static constexpr bool needsDestruction = true;
42      template<typename CellType, SubspaceAccess mode>
43      static IsoSubspace* subspaceFor(VM& vm)
44      {
45          return vm.apiGlobalObjectSpace<mode>();
46      }
47  
48      static JSAPIGlobalObject* create(VM& vm, Structure* structure)
49      {
50          auto* object = new (NotNull, allocateCell<JSAPIGlobalObject>(vm.heap)) JSAPIGlobalObject(vm, structure);
51          object->finishCreation(vm);
52          return object;
53      }
54  
55      static Structure* createStructure(VM& vm, JSValue prototype)
56      {
57          auto* result = Structure::create(vm, nullptr, prototype, TypeInfo(GlobalObjectType, StructureFlags), info());
58          result->setTransitionWatchpointIsLikelyToBeFired(true);
59          return result;
60      }
61  
62      static void reportUncaughtExceptionAtEventLoop(JSGlobalObject*, Exception*);
63  
64      static JSInternalPromise* moduleLoaderImportModule(JSGlobalObject*, JSModuleLoader*, JSString* moduleNameValue, JSValue parameters, const SourceOrigin&);
65      static Identifier moduleLoaderResolve(JSGlobalObject*, JSModuleLoader*, JSValue keyValue, JSValue referrerValue, JSValue);
66      static JSInternalPromise* moduleLoaderFetch(JSGlobalObject*, JSModuleLoader*, JSValue, JSValue, JSValue);
67      static JSObject* moduleLoaderCreateImportMetaProperties(JSGlobalObject*, JSModuleLoader*, JSValue, JSModuleRecord*, JSValue);
68      static JSValue moduleLoaderEvaluate(JSGlobalObject*, JSModuleLoader*, JSValue, JSValue, JSValue);
69  
70      JSValue loadAndEvaluateJSScriptModule(const JSLockHolder&, JSScript *);
71  
72  private:
73      JSAPIGlobalObject(VM& vm, Structure* structure)
74          : Base(vm, structure, &s_globalObjectMethodTable)
75      { }
76  };
77  
78  }