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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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66 | 66 |
67 namespace v8 { | 67 namespace v8 { |
68 | 68 |
69 | 69 |
70 class PreParserData { | 70 class PreParserData { |
71 public: | 71 public: |
72 PreParserData(size_t size, const uint8_t* data) | 72 PreParserData(size_t size, const uint8_t* data) |
73 : data_(data), size_(size) { } | 73 : data_(data), size_(size) { } |
74 | 74 |
75 // Create a PreParserData value where stack_overflow reports true. | 75 // Create a PreParserData value where stack_overflow reports true. |
76 static PreParserData StackOverflow() { return PreParserData(NULL, 0); } | 76 static PreParserData StackOverflow() { return PreParserData(0, 0); } |
77 // Whether the pre-parser stopped due to a stack overflow. | 77 // Whether the pre-parser stopped due to a stack overflow. |
78 // If this is the case, size() and data() should not be used. | 78 // If this is the case, size() and data() should not be used. |
79 | 79 |
80 bool stack_overflow() { return size_ == 0u; } | 80 bool stack_overflow() { return size_ == 0u; } |
81 | 81 |
82 // The size of the data in bytes. | 82 // The size of the data in bytes. |
83 size_t size() const { return size_; } | 83 size_t size() const { return size_; } |
84 | 84 |
85 // Pointer to the data. | 85 // Pointer to the data. |
86 const uint8_t* data() const { return data_; } | 86 const uint8_t* data() const { return data_; } |
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107 // space that the preparser is allowed to use. If the preparser uses | 107 // space that the preparser is allowed to use. If the preparser uses |
108 // more stack space than the limit provided, the result's stack_overflow() | 108 // more stack space than the limit provided, the result's stack_overflow() |
109 // method will return true. Otherwise the result contains preparser | 109 // method will return true. Otherwise the result contains preparser |
110 // data that can be used by the V8 parser to speed up parsing. | 110 // data that can be used by the V8 parser to speed up parsing. |
111 PreParserData V8EXPORT Preparse(UnicodeInputStream* input, | 111 PreParserData V8EXPORT Preparse(UnicodeInputStream* input, |
112 size_t max_stack_size); | 112 size_t max_stack_size); |
113 | 113 |
114 } // namespace v8. | 114 } // namespace v8. |
115 | 115 |
116 #endif // PREPARSER_H | 116 #endif // PREPARSER_H |
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