OLD | NEW |
1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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 |
11 // with the distribution. | 11 // with the distribution. |
(...skipping 48 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
60 #else // defined(__GNUC__) && (__GNUC__ >= 4) | 60 #else // defined(__GNUC__) && (__GNUC__ >= 4) |
61 #define V8EXPORT | 61 #define V8EXPORT |
62 #endif // defined(__GNUC__) && (__GNUC__ >= 4) | 62 #endif // defined(__GNUC__) && (__GNUC__ >= 4) |
63 | 63 |
64 #endif // _WIN32 | 64 #endif // _WIN32 |
65 | 65 |
66 | 66 |
67 namespace v8 { | 67 namespace v8 { |
68 | 68 |
69 | 69 |
70 class PreParserData { | 70 class V8EXPORT 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(0, NULL); } | 76 static PreParserData StackOverflow() { return PreParserData(0, NULL); } |
| 77 |
77 // Whether the pre-parser stopped due to a stack overflow. | 78 // Whether the pre-parser stopped due to a stack overflow. |
78 // If this is the case, size() and data() should not be used. | 79 // If this is the case, size() and data() should not be used. |
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_; } |
87 | 87 |
88 private: | 88 private: |
89 const uint8_t* const data_; | 89 const uint8_t* const data_; |
90 const size_t size_; | 90 const size_t size_; |
91 }; | 91 }; |
92 | 92 |
93 | 93 |
94 // Interface for a stream of Unicode characters. | 94 // Interface for a stream of Unicode characters. |
95 class UnicodeInputStream { | 95 class V8EXPORT UnicodeInputStream { // NOLINT - Thinks V8EXPORT is class name. |
96 public: | 96 public: |
97 virtual ~UnicodeInputStream(); | 97 virtual ~UnicodeInputStream(); |
98 | 98 |
99 // Returns the next Unicode code-point in the input, or a negative value when | 99 // Returns the next Unicode code-point in the input, or a negative value when |
100 // there is no more input in the stream. | 100 // there is no more input in the stream. |
101 virtual int32_t Next() = 0; | 101 virtual int32_t Next() = 0; |
102 }; | 102 }; |
103 | 103 |
104 | 104 |
105 // Preparse a JavaScript program. The source code is provided as a | 105 // Preparse a JavaScript program. The source code is provided as a |
106 // UnicodeInputStream. The max_stack_size limits the amount of stack | 106 // UnicodeInputStream. The max_stack_size limits the amount of stack |
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 |
OLD | NEW |