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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef PLATFORM_JSON_H_ | 5 #ifndef PLATFORM_JSON_H_ |
6 #define PLATFORM_JSON_H_ | 6 #define PLATFORM_JSON_H_ |
7 | 7 |
8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
9 #include "vm/globals.h" | 9 #include "vm/globals.h" |
10 | 10 |
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81 // with a valid JSON object. Returns NULL otherwise. | 81 // with a valid JSON object. Returns NULL otherwise. |
82 const char* EndOfObject(); | 82 const char* EndOfObject(); |
83 | 83 |
84 JSONType Type() const; | 84 JSONType Type() const; |
85 const char* ValueChars() const { | 85 const char* ValueChars() const { |
86 return (Type() != kNone) ? scanner_.TokenChars() : NULL; | 86 return (Type() != kNone) ? scanner_.TokenChars() : NULL; |
87 } | 87 } |
88 int ValueLen() const { | 88 int ValueLen() const { |
89 return (Type() != kNone) ? scanner_.TokenLen() : 0; | 89 return (Type() != kNone) ? scanner_.TokenLen() : 0; |
90 } | 90 } |
| 91 void GetValueChars(char* buf, intptr_t buflen) const; |
91 bool IsStringLiteral(const char* literal) const { | 92 bool IsStringLiteral(const char* literal) const { |
92 return scanner_.IsStringLiteral(literal); | 93 return scanner_.IsStringLiteral(literal); |
93 } | 94 } |
94 bool IsTrue() const { | 95 bool IsTrue() const { |
95 return scanner_.CurrentToken() == JSONScanner::TokenTrue; | 96 return scanner_.CurrentToken() == JSONScanner::TokenTrue; |
96 } | 97 } |
97 bool IsFalse() const { | 98 bool IsFalse() const { |
98 return scanner_.CurrentToken() == JSONScanner::TokenFalse; | 99 return scanner_.CurrentToken() == JSONScanner::TokenFalse; |
99 } | 100 } |
100 bool IsNull() const { | 101 bool IsNull() const { |
101 return scanner_.CurrentToken() == JSONScanner::TokenNull; | 102 return scanner_.CurrentToken() == JSONScanner::TokenNull; |
102 } | 103 } |
103 | 104 |
104 private: | 105 private: |
105 JSONScanner scanner_; | 106 JSONScanner scanner_; |
106 const char* json_object_; | 107 const char* json_object_; |
107 bool error_; | 108 bool error_; |
108 }; | 109 }; |
109 | 110 |
110 | 111 |
111 // TextBuffer maintains a dynamic character buffer with a printf-style way to | 112 // TextBuffer maintains a dynamic character buffer with a printf-style way to |
112 // append text. | 113 // append text. |
113 class TextBuffer : ValueObject { | 114 class TextBuffer : ValueObject { |
114 public: | 115 public: |
115 explicit TextBuffer(intptr_t buf_size); | 116 explicit TextBuffer(intptr_t buf_size); |
116 ~TextBuffer(); | 117 ~TextBuffer(); |
117 | 118 |
118 intptr_t Printf(const char* format, ...); | 119 intptr_t Printf(const char* format, ...); |
| 120 intptr_t Printf(const char* format, va_list args); |
| 121 |
119 void Clear(); | 122 void Clear(); |
120 | 123 |
121 char* buf() { return buf_; } | 124 char* buf() { return buf_; } |
122 intptr_t length() { return msg_len_; } | 125 intptr_t length() { return msg_len_; } |
123 | 126 |
124 private: | 127 private: |
125 void GrowBuffer(intptr_t len); | 128 void GrowBuffer(intptr_t len); |
126 char* buf_; | 129 char* buf_; |
127 intptr_t buf_size_; | 130 intptr_t buf_size_; |
128 intptr_t msg_len_; | 131 intptr_t msg_len_; |
129 }; | 132 }; |
130 | 133 |
131 } // namespace dart | 134 } // namespace dart |
132 | 135 |
133 #endif // PLATFORM_JSON_H_ | 136 #endif // PLATFORM_JSON_H_ |
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