OLD | NEW |
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 |
(...skipping 65 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
76 | 76 |
77 | 77 |
78 void PromotionQueue::ActivateGuardIfOnTheSamePage() { | 78 void PromotionQueue::ActivateGuardIfOnTheSamePage() { |
79 guard_ = guard_ || | 79 guard_ = guard_ || |
80 heap_->new_space()->active_space()->current_page()->address() == | 80 heap_->new_space()->active_space()->current_page()->address() == |
81 GetHeadPage()->address(); | 81 GetHeadPage()->address(); |
82 } | 82 } |
83 | 83 |
84 | 84 |
85 MaybeObject* Heap::AllocateStringFromUtf8(Vector<const char> str, | 85 MaybeObject* Heap::AllocateStringFromUtf8(Vector<const char> str, |
86 PretenureFlag pretenure, | 86 PretenureFlag pretenure) { |
87 String::AsciiHint ascii_hint) { | 87 // Check for ASCII first since this is the common case. |
88 if ((ascii_hint == String::MAYBE_ASCII && | 88 if (String::IsAscii(str.start(), str.length())) { |
89 String::IsAscii(str.start(), str.length())) || | |
90 ascii_hint == String::ASCII) { | |
91 // Assert that the ASCII-hint is correct. | |
92 ASSERT(ascii_hint != String::ASCII || | |
93 String::IsAscii(str.start(), str.length())); | |
94 // If the string is ASCII, we do not need to convert the characters | 89 // If the string is ASCII, we do not need to convert the characters |
95 // since UTF8 is backwards compatible with ASCII. | 90 // since UTF8 is backwards compatible with ASCII. |
96 return AllocateStringFromAscii(str, pretenure); | 91 return AllocateStringFromAscii(str, pretenure); |
97 } | 92 } |
98 // Non-ASCII and we need to decode. | 93 // Non-ASCII and we need to decode. |
99 return AllocateStringFromUtf8Slow(str, pretenure); | 94 return AllocateStringFromUtf8Slow(str, pretenure); |
100 } | 95 } |
101 | 96 |
102 | 97 |
103 MaybeObject* Heap::AllocateStringFromLatin1(Vector<const char> str, | |
104 PretenureFlag pretenure, | |
105 String::AsciiHint ascii_hint) { | |
106 if ((ascii_hint == String::MAYBE_ASCII && | |
107 String::IsAscii(str.start(), str.length())) || | |
108 ascii_hint == String::ASCII) { | |
109 // Assert that the strict ASCII-hint is correct. | |
110 ASSERT(ascii_hint != String::ASCII || | |
111 String::IsAscii(str.start(), str.length())); | |
112 // If the string is ASCII, we do not need to convert the characters | |
113 // since Latin1 is backwards compatible with ASCII. | |
114 return AllocateStringFromAscii(str, pretenure); | |
115 } | |
116 // Non-ASCII and we need to decode. | |
117 return AllocateStringFromLatin1Slow(str, pretenure); | |
118 } | |
119 | |
120 | |
121 MaybeObject* Heap::AllocateSymbol(Vector<const char> str, | 98 MaybeObject* Heap::AllocateSymbol(Vector<const char> str, |
122 int chars, | 99 int chars, |
123 uint32_t hash_field) { | 100 uint32_t hash_field) { |
124 unibrow::Utf8InputBuffer<> buffer(str.start(), | 101 unibrow::Utf8InputBuffer<> buffer(str.start(), |
125 static_cast<unsigned>(str.length())); | 102 static_cast<unsigned>(str.length())); |
126 return AllocateInternalSymbol(&buffer, chars, hash_field); | 103 return AllocateInternalSymbol(&buffer, chars, hash_field); |
127 } | 104 } |
128 | 105 |
129 | 106 |
130 MaybeObject* Heap::AllocateAsciiSymbol(Vector<const char> str, | 107 MaybeObject* Heap::AllocateAsciiSymbol(Vector<const char> str, |
(...skipping 711 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
842 AssertNoAllocation::~AssertNoAllocation() { } | 819 AssertNoAllocation::~AssertNoAllocation() { } |
843 DisableAssertNoAllocation::DisableAssertNoAllocation() { } | 820 DisableAssertNoAllocation::DisableAssertNoAllocation() { } |
844 DisableAssertNoAllocation::~DisableAssertNoAllocation() { } | 821 DisableAssertNoAllocation::~DisableAssertNoAllocation() { } |
845 | 822 |
846 #endif | 823 #endif |
847 | 824 |
848 | 825 |
849 } } // namespace v8::internal | 826 } } // namespace v8::internal |
850 | 827 |
851 #endif // V8_HEAP_INL_H_ | 828 #endif // V8_HEAP_INL_H_ |
OLD | NEW |