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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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3316 | 3316 |
3317 | 3317 |
3318 static Object* Runtime_NewObject(Arguments args) { | 3318 static Object* Runtime_NewObject(Arguments args) { |
3319 NoHandleAllocation ha; | 3319 NoHandleAllocation ha; |
3320 ASSERT(args.length() == 1); | 3320 ASSERT(args.length() == 1); |
3321 | 3321 |
3322 Object* constructor = args[0]; | 3322 Object* constructor = args[0]; |
3323 if (constructor->IsJSFunction()) { | 3323 if (constructor->IsJSFunction()) { |
3324 JSFunction* function = JSFunction::cast(constructor); | 3324 JSFunction* function = JSFunction::cast(constructor); |
3325 | 3325 |
3326 // Handle steping into constructors. | 3326 // Handle steping into constructors if step into is active. |
3327 if (Debug::StepInActive()) { | 3327 if (Debug::StepInActive()) { |
3328 StackFrameIterator it; | 3328 HandleScope scope; |
3329 it.Advance(); | 3329 Debug::HandleStepIn(Handle<JSFunction>(function), 0, true); |
3330 ASSERT(it.frame()->is_construct()); | |
3331 it.Advance(); | |
3332 if (it.frame()->fp() == Debug::step_in_fp()) { | |
3333 HandleScope scope; | |
3334 Debug::FloodWithOneShot(Handle<SharedFunctionInfo>(function->shared())); | |
3335 } | |
3336 } | 3330 } |
3337 | 3331 |
3338 if (function->has_initial_map() && | 3332 if (function->has_initial_map() && |
3339 function->initial_map()->instance_type() == JS_FUNCTION_TYPE) { | 3333 function->initial_map()->instance_type() == JS_FUNCTION_TYPE) { |
3340 // The 'Function' function ignores the receiver object when | 3334 // The 'Function' function ignores the receiver object when |
3341 // called using 'new' and creates a new JSFunction object that | 3335 // called using 'new' and creates a new JSFunction object that |
3342 // is returned. The receiver object is only used for error | 3336 // is returned. The receiver object is only used for error |
3343 // reporting if an error occurs when constructing the new | 3337 // reporting if an error occurs when constructing the new |
3344 // JSFunction. AllocateJSObject should not be used to allocate | 3338 // JSFunction. AllocateJSObject should not be used to allocate |
3345 // JSFunctions since it does not properly initialize the shared | 3339 // JSFunctions since it does not properly initialize the shared |
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5872 } else { | 5866 } else { |
5873 // Handle last resort GC and make sure to allow future allocations | 5867 // Handle last resort GC and make sure to allow future allocations |
5874 // to grow the heap without causing GCs (if possible). | 5868 // to grow the heap without causing GCs (if possible). |
5875 Counters::gc_last_resort_from_js.Increment(); | 5869 Counters::gc_last_resort_from_js.Increment(); |
5876 Heap::CollectAllGarbage(); | 5870 Heap::CollectAllGarbage(); |
5877 } | 5871 } |
5878 } | 5872 } |
5879 | 5873 |
5880 | 5874 |
5881 } } // namespace v8::internal | 5875 } } // namespace v8::internal |
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