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Issue 23601031: Handlify JSReceiver::SetProperty and friends. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Addressed comments by Toon Verwaest. Created 7 years, 3 months ago
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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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1663 1663
1664 1664
1665 MaybeObject* StoreIC::Store(State state, 1665 MaybeObject* StoreIC::Store(State state,
1666 StrictModeFlag strict_mode, 1666 StrictModeFlag strict_mode,
1667 Handle<Object> object, 1667 Handle<Object> object,
1668 Handle<String> name, 1668 Handle<String> name,
1669 Handle<Object> value, 1669 Handle<Object> value,
1670 JSReceiver::StoreFromKeyed store_mode) { 1670 JSReceiver::StoreFromKeyed store_mode) {
1671 // Handle proxies. 1671 // Handle proxies.
1672 if (object->IsJSProxy()) { 1672 if (object->IsJSProxy()) {
1673 return JSReceiver::SetPropertyOrFail( 1673 Handle<Object> result = JSReceiver::SetProperty(
1674 Handle<JSReceiver>::cast(object), name, value, NONE, strict_mode); 1674 Handle<JSReceiver>::cast(object), name, value, NONE, strict_mode);
1675 RETURN_IF_EMPTY_HANDLE(isolate(), result);
1676 return *result;
1675 } 1677 }
1676 1678
1677 // If the object is undefined or null it's illegal to try to set any 1679 // If the object is undefined or null it's illegal to try to set any
1678 // properties on it; throw a TypeError in that case. 1680 // properties on it; throw a TypeError in that case.
1679 if (object->IsUndefined() || object->IsNull()) { 1681 if (object->IsUndefined() || object->IsNull()) {
1680 return TypeError("non_object_property_store", object, name); 1682 return TypeError("non_object_property_store", object, name);
1681 } 1683 }
1682 1684
1683 // The length property of string values is read-only. Throw in strict mode. 1685 // The length property of string values is read-only. Throw in strict mode.
1684 if (strict_mode == kStrictMode && object->IsString() && 1686 if (strict_mode == kStrictMode && object->IsString() &&
(...skipping 17 matching lines...) Expand all
1702 uint32_t index; 1704 uint32_t index;
1703 if (name->AsArrayIndex(&index)) { 1705 if (name->AsArrayIndex(&index)) {
1704 Handle<Object> result = 1706 Handle<Object> result =
1705 JSObject::SetElement(receiver, index, value, NONE, strict_mode); 1707 JSObject::SetElement(receiver, index, value, NONE, strict_mode);
1706 RETURN_IF_EMPTY_HANDLE(isolate(), result); 1708 RETURN_IF_EMPTY_HANDLE(isolate(), result);
1707 return *value; 1709 return *value;
1708 } 1710 }
1709 1711
1710 // Observed objects are always modified through the runtime. 1712 // Observed objects are always modified through the runtime.
1711 if (FLAG_harmony_observation && receiver->map()->is_observed()) { 1713 if (FLAG_harmony_observation && receiver->map()->is_observed()) {
1712 return JSReceiver::SetPropertyOrFail( 1714 Handle<Object> result = JSReceiver::SetProperty(
1713 receiver, name, value, NONE, strict_mode, store_mode); 1715 receiver, name, value, NONE, strict_mode, store_mode);
1716 RETURN_IF_EMPTY_HANDLE(isolate(), result);
1717 return *result;
1714 } 1718 }
1715 1719
1716 // Use specialized code for setting the length of arrays with fast 1720 // Use specialized code for setting the length of arrays with fast
1717 // properties. Slow properties might indicate redefinition of the length 1721 // properties. Slow properties might indicate redefinition of the length
1718 // property. Note that when redefined using Object.freeze, it's possible 1722 // property. Note that when redefined using Object.freeze, it's possible
1719 // to have fast properties but a read-only length. 1723 // to have fast properties but a read-only length.
1720 if (use_ic && 1724 if (use_ic &&
1721 receiver->IsJSArray() && 1725 receiver->IsJSArray() &&
1722 name->Equals(isolate()->heap()->length_string()) && 1726 name->Equals(isolate()->heap()->length_string()) &&
1723 Handle<JSArray>::cast(receiver)->AllowsSetElementsLength() && 1727 Handle<JSArray>::cast(receiver)->AllowsSetElementsLength() &&
1724 receiver->HasFastProperties() && 1728 receiver->HasFastProperties() &&
1725 !receiver->map()->is_frozen()) { 1729 !receiver->map()->is_frozen()) {
1726 Handle<Code> stub = 1730 Handle<Code> stub =
1727 StoreArrayLengthStub(kind(), strict_mode).GetCode(isolate()); 1731 StoreArrayLengthStub(kind(), strict_mode).GetCode(isolate());
1728 set_target(*stub); 1732 set_target(*stub);
1729 TRACE_IC("StoreIC", name, state, *stub); 1733 TRACE_IC("StoreIC", name, state, *stub);
1730 return JSReceiver::SetPropertyOrFail( 1734 Handle<Object> result = JSReceiver::SetProperty(
1731 receiver, name, value, NONE, strict_mode, store_mode); 1735 receiver, name, value, NONE, strict_mode, store_mode);
1736 RETURN_IF_EMPTY_HANDLE(isolate(), result);
1737 return *result;
1732 } 1738 }
1733 1739
1734 if (receiver->IsJSGlobalProxy()) { 1740 if (receiver->IsJSGlobalProxy()) {
1735 if (use_ic && kind() != Code::KEYED_STORE_IC) { 1741 if (use_ic && kind() != Code::KEYED_STORE_IC) {
1736 // Generate a generic stub that goes to the runtime when we see a global 1742 // Generate a generic stub that goes to the runtime when we see a global
1737 // proxy as receiver. 1743 // proxy as receiver.
1738 Handle<Code> stub = (strict_mode == kStrictMode) 1744 Handle<Code> stub = (strict_mode == kStrictMode)
1739 ? global_proxy_stub_strict() 1745 ? global_proxy_stub_strict()
1740 : global_proxy_stub(); 1746 : global_proxy_stub();
1741 set_target(*stub); 1747 set_target(*stub);
1742 TRACE_IC("StoreIC", name, state, *stub); 1748 TRACE_IC("StoreIC", name, state, *stub);
1743 } 1749 }
1744 return JSReceiver::SetPropertyOrFail( 1750 Handle<Object> result = JSReceiver::SetProperty(
1745 receiver, name, value, NONE, strict_mode, store_mode); 1751 receiver, name, value, NONE, strict_mode, store_mode);
1752 RETURN_IF_EMPTY_HANDLE(isolate(), result);
1753 return *result;
1746 } 1754 }
1747 1755
1748 LookupResult lookup(isolate()); 1756 LookupResult lookup(isolate());
1749 bool can_store = LookupForWrite(receiver, name, value, &lookup, &state); 1757 bool can_store = LookupForWrite(receiver, name, value, &lookup, &state);
1750 if (!can_store && 1758 if (!can_store &&
1751 strict_mode == kStrictMode && 1759 strict_mode == kStrictMode &&
1752 !(lookup.IsProperty() && lookup.IsReadOnly()) && 1760 !(lookup.IsProperty() && lookup.IsReadOnly()) &&
1753 IsUndeclaredGlobal(object)) { 1761 IsUndeclaredGlobal(object)) {
1754 // Strict mode doesn't allow setting non-existent global property. 1762 // Strict mode doesn't allow setting non-existent global property.
1755 return ReferenceError("not_defined", name); 1763 return ReferenceError("not_defined", name);
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1766 } else if (!name->IsCacheable(isolate()) || 1774 } else if (!name->IsCacheable(isolate()) ||
1767 lookup.IsNormal() || 1775 lookup.IsNormal() ||
1768 (lookup.IsField() && lookup.CanHoldValue(value))) { 1776 (lookup.IsField() && lookup.CanHoldValue(value))) {
1769 Handle<Code> stub = (strict_mode == kStrictMode) ? generic_stub_strict() 1777 Handle<Code> stub = (strict_mode == kStrictMode) ? generic_stub_strict()
1770 : generic_stub(); 1778 : generic_stub();
1771 set_target(*stub); 1779 set_target(*stub);
1772 } 1780 }
1773 } 1781 }
1774 1782
1775 // Set the property. 1783 // Set the property.
1776 return JSReceiver::SetPropertyOrFail( 1784 Handle<Object> result = JSReceiver::SetProperty(
1777 receiver, name, value, NONE, strict_mode, store_mode); 1785 receiver, name, value, NONE, strict_mode, store_mode);
1786 RETURN_IF_EMPTY_HANDLE(isolate(), result);
1787 return *result;
1778 } 1788 }
1779 1789
1780 1790
1781 void StoreIC::UpdateCaches(LookupResult* lookup, 1791 void StoreIC::UpdateCaches(LookupResult* lookup,
1782 State state, 1792 State state,
1783 StrictModeFlag strict_mode, 1793 StrictModeFlag strict_mode,
1784 Handle<JSObject> receiver, 1794 Handle<JSObject> receiver,
1785 Handle<String> name, 1795 Handle<String> name,
1786 Handle<Object> value) { 1796 Handle<Object> value) {
1787 ASSERT(!receiver->IsJSGlobalProxy()); 1797 ASSERT(!receiver->IsJSGlobalProxy());
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3149 #undef ADDR 3159 #undef ADDR
3150 }; 3160 };
3151 3161
3152 3162
3153 Address IC::AddressFromUtilityId(IC::UtilityId id) { 3163 Address IC::AddressFromUtilityId(IC::UtilityId id) {
3154 return IC_utilities[id]; 3164 return IC_utilities[id];
3155 } 3165 }
3156 3166
3157 3167
3158 } } // namespace v8::internal 3168 } } // namespace v8::internal
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