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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 93 // Convert calls on global objects to be calls on the global | 93 // Convert calls on global objects to be calls on the global |
| 94 // receiver instead to avoid having a 'this' pointer which refers | 94 // receiver instead to avoid having a 'this' pointer which refers |
| 95 // directly to a global object. | 95 // directly to a global object. |
| 96 if (receiver->IsGlobalObject()) { | 96 if (receiver->IsGlobalObject()) { |
| 97 Handle<GlobalObject> global = Handle<GlobalObject>::cast(receiver); | 97 Handle<GlobalObject> global = Handle<GlobalObject>::cast(receiver); |
| 98 receiver = Handle<JSObject>(global->global_receiver()); | 98 receiver = Handle<JSObject>(global->global_receiver()); |
| 99 } | 99 } |
| 100 | 100 |
| 101 // Make sure that the global object of the context we're about to | 101 // Make sure that the global object of the context we're about to |
| 102 // make the current one is indeed a global object. | 102 // make the current one is indeed a global object. |
| 103 ASSERT(function->context()->global()->IsGlobalObject()); | 103 ASSERT(function->context()->global_object()->IsGlobalObject()); |
| 104 | 104 |
| 105 { | 105 { |
| 106 // Save and restore context around invocation and block the | 106 // Save and restore context around invocation and block the |
| 107 // allocation of handles without explicit handle scopes. | 107 // allocation of handles without explicit handle scopes. |
| 108 SaveContext save(isolate); | 108 SaveContext save(isolate); |
| 109 NoHandleAllocation na; | 109 NoHandleAllocation na; |
| 110 JSEntryFunction stub_entry = FUNCTION_CAST<JSEntryFunction>(code->entry()); | 110 JSEntryFunction stub_entry = FUNCTION_CAST<JSEntryFunction>(code->entry()); |
| 111 | 111 |
| 112 // Call the function through the right JS entry stub. | 112 // Call the function through the right JS entry stub. |
| 113 byte* function_entry = function->code()->entry(); | 113 byte* function_entry = function->code()->entry(); |
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| 158 if (!callable->IsJSFunction()) { | 158 if (!callable->IsJSFunction()) { |
| 159 callable = TryGetFunctionDelegate(callable, pending_exception); | 159 callable = TryGetFunctionDelegate(callable, pending_exception); |
| 160 if (*pending_exception) return callable; | 160 if (*pending_exception) return callable; |
| 161 } | 161 } |
| 162 Handle<JSFunction> func = Handle<JSFunction>::cast(callable); | 162 Handle<JSFunction> func = Handle<JSFunction>::cast(callable); |
| 163 | 163 |
| 164 // In non-strict mode, convert receiver. | 164 // In non-strict mode, convert receiver. |
| 165 if (convert_receiver && !receiver->IsJSReceiver() && | 165 if (convert_receiver && !receiver->IsJSReceiver() && |
| 166 !func->shared()->native() && func->shared()->is_classic_mode()) { | 166 !func->shared()->native() && func->shared()->is_classic_mode()) { |
| 167 if (receiver->IsUndefined() || receiver->IsNull()) { | 167 if (receiver->IsUndefined() || receiver->IsNull()) { |
| 168 Object* global = func->context()->global()->global_receiver(); | 168 Object* global = func->context()->global_object()->global_receiver(); |
| 169 // Under some circumstances, 'global' can be the JSBuiltinsObject | 169 // Under some circumstances, 'global' can be the JSBuiltinsObject |
| 170 // In that case, don't rewrite. | 170 // In that case, don't rewrite. (FWIW, the same holds for |
| 171 // (FWIW, the same holds for GetIsolate()->global()->global_receiver().) | 171 // GetIsolate()->global_object()->global_receiver().) |
| 172 if (!global->IsJSBuiltinsObject()) receiver = Handle<Object>(global); | 172 if (!global->IsJSBuiltinsObject()) receiver = Handle<Object>(global); |
| 173 } else { | 173 } else { |
| 174 receiver = ToObject(receiver, pending_exception); | 174 receiver = ToObject(receiver, pending_exception); |
| 175 } | 175 } |
| 176 if (*pending_exception) return callable; | 176 if (*pending_exception) return callable; |
| 177 } | 177 } |
| 178 | 178 |
| 179 return Invoke(false, func, receiver, argc, argv, pending_exception); | 179 return Invoke(false, func, receiver, argc, argv, pending_exception); |
| 180 } | 180 } |
| 181 | 181 |
| 182 | 182 |
| 183 Handle<Object> Execution::New(Handle<JSFunction> func, | 183 Handle<Object> Execution::New(Handle<JSFunction> func, |
| 184 int argc, | 184 int argc, |
| 185 Handle<Object> argv[], | 185 Handle<Object> argv[], |
| 186 bool* pending_exception) { | 186 bool* pending_exception) { |
| 187 return Invoke(true, func, Isolate::Current()->global(), argc, argv, | 187 return Invoke(true, func, Isolate::Current()->global_object(), argc, argv, |
| 188 pending_exception); | 188 pending_exception); |
| 189 } | 189 } |
| 190 | 190 |
| 191 | 191 |
| 192 Handle<Object> Execution::TryCall(Handle<JSFunction> func, | 192 Handle<Object> Execution::TryCall(Handle<JSFunction> func, |
| 193 Handle<Object> receiver, | 193 Handle<Object> receiver, |
| 194 int argc, | 194 int argc, |
| 195 Handle<Object> args[], | 195 Handle<Object> args[], |
| 196 bool* caught_exception) { | 196 bool* caught_exception) { |
| 197 // Enter a try-block while executing the JavaScript code. To avoid | 197 // Enter a try-block while executing the JavaScript code. To avoid |
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| 863 | 863 |
| 864 { | 864 { |
| 865 JavaScriptFrameIterator it(isolate); | 865 JavaScriptFrameIterator it(isolate); |
| 866 ASSERT(!it.done()); | 866 ASSERT(!it.done()); |
| 867 Object* fun = it.frame()->function(); | 867 Object* fun = it.frame()->function(); |
| 868 if (fun && fun->IsJSFunction()) { | 868 if (fun && fun->IsJSFunction()) { |
| 869 // Don't stop in builtin functions. | 869 // Don't stop in builtin functions. |
| 870 if (JSFunction::cast(fun)->IsBuiltin()) { | 870 if (JSFunction::cast(fun)->IsBuiltin()) { |
| 871 return isolate->heap()->undefined_value(); | 871 return isolate->heap()->undefined_value(); |
| 872 } | 872 } |
| 873 GlobalObject* global = JSFunction::cast(fun)->context()->global(); | 873 GlobalObject* global = JSFunction::cast(fun)->context()->global_object(); |
| 874 // Don't stop in debugger functions. | 874 // Don't stop in debugger functions. |
| 875 if (isolate->debug()->IsDebugGlobal(global)) { | 875 if (isolate->debug()->IsDebugGlobal(global)) { |
| 876 return isolate->heap()->undefined_value(); | 876 return isolate->heap()->undefined_value(); |
| 877 } | 877 } |
| 878 } | 878 } |
| 879 } | 879 } |
| 880 | 880 |
| 881 // Collect the break state before clearing the flags. | 881 // Collect the break state before clearing the flags. |
| 882 bool debug_command_only = | 882 bool debug_command_only = |
| 883 isolate->stack_guard()->IsDebugCommand() && | 883 isolate->stack_guard()->IsDebugCommand() && |
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| 961 } | 961 } |
| 962 if (stack_guard->IsInterrupted()) { | 962 if (stack_guard->IsInterrupted()) { |
| 963 stack_guard->Continue(INTERRUPT); | 963 stack_guard->Continue(INTERRUPT); |
| 964 return isolate->StackOverflow(); | 964 return isolate->StackOverflow(); |
| 965 } | 965 } |
| 966 return isolate->heap()->undefined_value(); | 966 return isolate->heap()->undefined_value(); |
| 967 } | 967 } |
| 968 | 968 |
| 969 | 969 |
| 970 } } // namespace v8::internal | 970 } } // namespace v8::internal |
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