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1 /* | 1 /* |
2 * Copyright (C) 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2010 Apple Inc. All rights reserved. |
3 * Copyright (c) 2010, Google Inc. All rights reserved. | 3 * Copyright (c) 2010, Google Inc. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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64 | 64 |
65 protected: | 65 protected: |
66 TypedArrayBase(PassRefPtr<ArrayBuffer> buffer, | 66 TypedArrayBase(PassRefPtr<ArrayBuffer> buffer, |
67 unsigned byte_offset, | 67 unsigned byte_offset, |
68 unsigned length) | 68 unsigned length) |
69 : ArrayBufferView(std::move(buffer), byte_offset), length_(length) {} | 69 : ArrayBufferView(std::move(buffer), byte_offset), length_(length) {} |
70 | 70 |
71 template <class Subclass> | 71 template <class Subclass> |
72 static PassRefPtr<Subclass> Create(unsigned length) { | 72 static PassRefPtr<Subclass> Create(unsigned length) { |
73 RefPtr<ArrayBuffer> buffer = ArrayBuffer::Create(length, sizeof(T)); | 73 RefPtr<ArrayBuffer> buffer = ArrayBuffer::Create(length, sizeof(T)); |
74 return Create<Subclass>(buffer.Release(), 0, length); | 74 return Create<Subclass>(std::move(buffer), 0, length); |
75 } | 75 } |
76 | 76 |
77 template <class Subclass> | 77 template <class Subclass> |
78 static PassRefPtr<Subclass> Create(const T* array, unsigned length) { | 78 static PassRefPtr<Subclass> Create(const T* array, unsigned length) { |
79 RefPtr<Subclass> a = Create<Subclass>(length); | 79 RefPtr<Subclass> a = Create<Subclass>(length); |
80 if (a) | 80 if (a) |
81 for (unsigned i = 0; i < length; ++i) | 81 for (unsigned i = 0; i < length; ++i) |
82 a->Set(i, array[i]); | 82 a->Set(i, array[i]); |
83 return a; | 83 return a; |
84 } | 84 } |
85 | 85 |
86 template <class Subclass> | 86 template <class Subclass> |
87 static PassRefPtr<Subclass> Create(PassRefPtr<ArrayBuffer> buffer, | 87 static PassRefPtr<Subclass> Create(PassRefPtr<ArrayBuffer> buffer, |
88 unsigned byte_offset, | 88 unsigned byte_offset, |
89 unsigned length) { | 89 unsigned length) { |
90 RefPtr<ArrayBuffer> buf(std::move(buffer)); | 90 RefPtr<ArrayBuffer> buf(std::move(buffer)); |
91 CHECK(VerifySubRange<T>(buf, byte_offset, length)); | 91 CHECK(VerifySubRange<T>(buf, byte_offset, length)); |
92 return AdoptRef(new Subclass(buf.Release(), byte_offset, length)); | 92 return AdoptRef(new Subclass(std::move(buf), byte_offset, length)); |
93 } | 93 } |
94 | 94 |
95 template <class Subclass> | 95 template <class Subclass> |
96 static PassRefPtr<Subclass> CreateOrNull(unsigned length) { | 96 static PassRefPtr<Subclass> CreateOrNull(unsigned length) { |
97 RefPtr<ArrayBuffer> buffer = ArrayBuffer::CreateOrNull(length, sizeof(T)); | 97 RefPtr<ArrayBuffer> buffer = ArrayBuffer::CreateOrNull(length, sizeof(T)); |
98 if (!buffer) | 98 if (!buffer) |
99 return nullptr; | 99 return nullptr; |
100 return Create<Subclass>(buffer.Release(), 0, length); | 100 return Create<Subclass>(std::move(buffer), 0, length); |
101 } | 101 } |
102 | 102 |
103 void Neuter() final { | 103 void Neuter() final { |
104 ArrayBufferView::Neuter(); | 104 ArrayBufferView::Neuter(); |
105 length_ = 0; | 105 length_ = 0; |
106 } | 106 } |
107 | 107 |
108 // We do not want to have to access this via a virtual function in subclasses, | 108 // We do not want to have to access this via a virtual function in subclasses, |
109 // which is why it is protected rather than private. | 109 // which is why it is protected rather than private. |
110 unsigned length_; | 110 unsigned length_; |
111 }; | 111 }; |
112 | 112 |
113 } // namespace WTF | 113 } // namespace WTF |
114 | 114 |
115 using WTF::TypedArrayBase; | 115 using WTF::TypedArrayBase; |
116 | 116 |
117 #endif // TypedArrayBase_h | 117 #endif // TypedArrayBase_h |
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