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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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/factory.h" | 5 #include "src/factory.h" |
6 | 6 |
7 #include "src/allocation-site-scopes.h" | 7 #include "src/allocation-site-scopes.h" |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/conversions.h" | 9 #include "src/conversions.h" |
10 #include "src/isolate-inl.h" | 10 #include "src/isolate-inl.h" |
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1975 void Factory::BecomeJSObject(Handle<JSProxy> proxy) { | 1975 void Factory::BecomeJSObject(Handle<JSProxy> proxy) { |
1976 ReinitializeJSProxy(proxy, JS_OBJECT_TYPE, JSObject::kHeaderSize); | 1976 ReinitializeJSProxy(proxy, JS_OBJECT_TYPE, JSObject::kHeaderSize); |
1977 } | 1977 } |
1978 | 1978 |
1979 | 1979 |
1980 void Factory::BecomeJSFunction(Handle<JSProxy> proxy) { | 1980 void Factory::BecomeJSFunction(Handle<JSProxy> proxy) { |
1981 ReinitializeJSProxy(proxy, JS_FUNCTION_TYPE, JSFunction::kSize); | 1981 ReinitializeJSProxy(proxy, JS_FUNCTION_TYPE, JSFunction::kSize); |
1982 } | 1982 } |
1983 | 1983 |
1984 | 1984 |
1985 Handle<TypeFeedbackVector> Factory::NewTypeFeedbackVector(int slot_count) { | 1985 Handle<TypeFeedbackVector> Factory::NewTypeFeedbackVector(int slot_count, |
1986 // Ensure we can skip the write barrier | 1986 int ic_slot_count) { |
1987 DCHECK_EQ(isolate()->heap()->uninitialized_symbol(), | 1987 return TypeFeedbackVector::Allocate(isolate(), slot_count, ic_slot_count); |
1988 *TypeFeedbackVector::UninitializedSentinel(isolate())); | |
1989 | |
1990 if (slot_count == 0) { | |
1991 return Handle<TypeFeedbackVector>::cast(empty_fixed_array()); | |
1992 } | |
1993 | |
1994 CALL_HEAP_FUNCTION(isolate(), | |
1995 isolate()->heap()->AllocateFixedArrayWithFiller( | |
1996 slot_count, TENURED, | |
1997 *TypeFeedbackVector::UninitializedSentinel(isolate())), | |
1998 TypeFeedbackVector); | |
1999 } | 1988 } |
2000 | 1989 |
2001 | 1990 |
2002 Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo( | 1991 Handle<SharedFunctionInfo> Factory::NewSharedFunctionInfo( |
2003 Handle<String> name, int number_of_literals, FunctionKind kind, | 1992 Handle<String> name, int number_of_literals, FunctionKind kind, |
2004 Handle<Code> code, Handle<ScopeInfo> scope_info, | 1993 Handle<Code> code, Handle<ScopeInfo> scope_info, |
2005 Handle<TypeFeedbackVector> feedback_vector) { | 1994 Handle<TypeFeedbackVector> feedback_vector) { |
2006 DCHECK(IsValidFunctionKind(kind)); | 1995 DCHECK(IsValidFunctionKind(kind)); |
2007 Handle<SharedFunctionInfo> shared = NewSharedFunctionInfo(name, code); | 1996 Handle<SharedFunctionInfo> shared = NewSharedFunctionInfo(name, code); |
2008 shared->set_scope_info(*scope_info); | 1997 shared->set_scope_info(*scope_info); |
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2063 share->set_optimized_code_map(Smi::FromInt(0)); | 2052 share->set_optimized_code_map(Smi::FromInt(0)); |
2064 share->set_scope_info(ScopeInfo::Empty(isolate())); | 2053 share->set_scope_info(ScopeInfo::Empty(isolate())); |
2065 Code* construct_stub = | 2054 Code* construct_stub = |
2066 isolate()->builtins()->builtin(Builtins::kJSConstructStubGeneric); | 2055 isolate()->builtins()->builtin(Builtins::kJSConstructStubGeneric); |
2067 share->set_construct_stub(construct_stub); | 2056 share->set_construct_stub(construct_stub); |
2068 share->set_instance_class_name(*Object_string()); | 2057 share->set_instance_class_name(*Object_string()); |
2069 share->set_function_data(*undefined_value(), SKIP_WRITE_BARRIER); | 2058 share->set_function_data(*undefined_value(), SKIP_WRITE_BARRIER); |
2070 share->set_script(*undefined_value(), SKIP_WRITE_BARRIER); | 2059 share->set_script(*undefined_value(), SKIP_WRITE_BARRIER); |
2071 share->set_debug_info(*undefined_value(), SKIP_WRITE_BARRIER); | 2060 share->set_debug_info(*undefined_value(), SKIP_WRITE_BARRIER); |
2072 share->set_inferred_name(*empty_string(), SKIP_WRITE_BARRIER); | 2061 share->set_inferred_name(*empty_string(), SKIP_WRITE_BARRIER); |
2073 Handle<TypeFeedbackVector> feedback_vector = NewTypeFeedbackVector(0); | 2062 Handle<TypeFeedbackVector> feedback_vector = NewTypeFeedbackVector(0, 0); |
2074 share->set_feedback_vector(*feedback_vector, SKIP_WRITE_BARRIER); | 2063 share->set_feedback_vector(*feedback_vector, SKIP_WRITE_BARRIER); |
2075 share->set_profiler_ticks(0); | 2064 share->set_profiler_ticks(0); |
2076 share->set_ast_node_count(0); | 2065 share->set_ast_node_count(0); |
2077 share->set_counters(0); | 2066 share->set_counters(0); |
2078 | 2067 |
2079 // Set integer fields (smi or int, depending on the architecture). | 2068 // Set integer fields (smi or int, depending on the architecture). |
2080 share->set_length(0); | 2069 share->set_length(0); |
2081 share->set_formal_parameter_count(0); | 2070 share->set_formal_parameter_count(0); |
2082 share->set_expected_nof_properties(0); | 2071 share->set_expected_nof_properties(0); |
2083 share->set_num_literals(0); | 2072 share->set_num_literals(0); |
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2493 return Handle<Object>::null(); | 2482 return Handle<Object>::null(); |
2494 } | 2483 } |
2495 | 2484 |
2496 | 2485 |
2497 Handle<Object> Factory::ToBoolean(bool value) { | 2486 Handle<Object> Factory::ToBoolean(bool value) { |
2498 return value ? true_value() : false_value(); | 2487 return value ? true_value() : false_value(); |
2499 } | 2488 } |
2500 | 2489 |
2501 | 2490 |
2502 } } // namespace v8::internal | 2491 } } // namespace v8::internal |
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