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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #include "src/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
| 8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
| 9 #include "src/scopeinfo.h" | 9 #include "src/scopeinfo.h" |
| 10 | 10 |
| 11 namespace v8 { | 11 namespace v8 { |
| 12 namespace internal { | 12 namespace internal { |
| 13 | 13 |
| 14 | 14 |
| 15 Handle<ScriptContextTable> ScriptContextTable::Extend( | 15 Handle<ScriptContextTable> ScriptContextTable::Extend( |
| 16 Handle<ScriptContextTable> table, Handle<Context> script_context) { | 16 Handle<ScriptContextTable> table, Handle<Context> script_context) { |
| 17 Handle<ScriptContextTable> result; | 17 Handle<ScriptContextTable> result; |
| 18 int used = table->used(); | 18 int used = table->used(); |
| 19 int length = table->length(); | 19 int length = table->length(); |
| 20 CHECK(used >= 0 && length > 0 && used < length); | 20 CHECK(used >= 0 && length > 0 && used < length); |
| 21 if (used + 1 == length) { | 21 if (used + 1 == length) { |
| 22 CHECK(length < Smi::kMaxValue / 2); | 22 CHECK(length < Smi::kMaxValue / 2); |
| 23 result = Handle<ScriptContextTable>::cast( | 23 Isolate* isolate = table->GetIsolate(); |
| 24 FixedArray::CopySize(table, length * 2)); | 24 Handle<FixedArray> copy = |
| 25 isolate->factory()->CopyFixedArrayAndGrow(table, length); |
| 26 copy->set_map(isolate->heap()->script_context_table_map()); |
| 27 result = Handle<ScriptContextTable>::cast(copy); |
| 25 } else { | 28 } else { |
| 26 result = table; | 29 result = table; |
| 27 } | 30 } |
| 28 result->set_used(used + 1); | 31 result->set_used(used + 1); |
| 29 | 32 |
| 30 DCHECK(script_context->IsScriptContext()); | 33 DCHECK(script_context->IsScriptContext()); |
| 31 result->set(used + 1, *script_context); | 34 result->set(used + 1, *script_context); |
| 32 return result; | 35 return result; |
| 33 } | 36 } |
| 34 | 37 |
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| 508 // During bootstrapping we allow all objects to pass as global | 511 // During bootstrapping we allow all objects to pass as global |
| 509 // objects. This is necessary to fix circular dependencies. | 512 // objects. This is necessary to fix circular dependencies. |
| 510 return isolate->heap()->gc_state() != Heap::NOT_IN_GC || | 513 return isolate->heap()->gc_state() != Heap::NOT_IN_GC || |
| 511 isolate->bootstrapper()->IsActive() || | 514 isolate->bootstrapper()->IsActive() || |
| 512 object->IsGlobalObject(); | 515 object->IsGlobalObject(); |
| 513 } | 516 } |
| 514 #endif | 517 #endif |
| 515 | 518 |
| 516 } // namespace internal | 519 } // namespace internal |
| 517 } // namespace v8 | 520 } // namespace v8 |
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