Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 4 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5 | #ifndef V8_PREPARSE_DATA_H_ |
| 6 | #define V8_PREPARSE_DATA_H_ |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 7 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8 | #include "src/allocation.h" |
| 9 | #include "src/hashmap.h" |
| 10 | #include "src/preparse-data-format.h" |
| 11 | #include "src/utils-inl.h" |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 16 | class ScriptData; |
| 17 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 18 | |
| 19 | // Abstract interface for preparse data recorder. |
| 20 | class ParserRecorder { |
| 21 | public: |
| 22 | ParserRecorder() { } |
| 23 | virtual ~ParserRecorder() { } |
| 24 | |
| 25 | // Logs the scope and some details of a function literal in the source. |
| 26 | virtual void LogFunction(int start, |
| 27 | int end, |
| 28 | int literals, |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 29 | int properties, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | StrictMode strict_mode) = 0; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 31 | |
| 32 | // Logs an error message and marks the log as containing an error. |
| 33 | // Further logging will be ignored, and ExtractData will return a vector |
| 34 | // representing the error only. |
| 35 | virtual void LogMessage(int start, |
| 36 | int end, |
| 37 | const char* message, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 38 | const char* argument_opt, |
| 39 | bool is_reference_error) = 0; |
| 40 | private: |
| 41 | DISALLOW_COPY_AND_ASSIGN(ParserRecorder); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 42 | }; |
| 43 | |
| 44 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 45 | class SingletonLogger : public ParserRecorder { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 46 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 47 | SingletonLogger() |
| 48 | : has_error_(false), start_(-1), end_(-1), is_reference_error_(false) {} |
| 49 | virtual ~SingletonLogger() {} |
| 50 | |
| 51 | void Reset() { has_error_ = false; } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 52 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 53 | virtual void LogFunction(int start, |
| 54 | int end, |
| 55 | int literals, |
| 56 | int properties, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 57 | StrictMode strict_mode) { |
| 58 | DCHECK(!has_error_); |
| 59 | start_ = start; |
| 60 | end_ = end; |
| 61 | literals_ = literals; |
| 62 | properties_ = properties; |
| 63 | strict_mode_ = strict_mode; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | // Logs an error message and marks the log as containing an error. |
| 67 | // Further logging will be ignored, and ExtractData will return a vector |
| 68 | // representing the error only. |
| 69 | virtual void LogMessage(int start, |
| 70 | int end, |
| 71 | const char* message, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 72 | const char* argument_opt, |
| 73 | bool is_reference_error) { |
| 74 | if (has_error_) return; |
| 75 | has_error_ = true; |
| 76 | start_ = start; |
| 77 | end_ = end; |
| 78 | message_ = message; |
| 79 | argument_opt_ = argument_opt; |
| 80 | is_reference_error_ = is_reference_error; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 81 | } |
| 82 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 83 | bool has_error() const { return has_error_; } |
| 84 | |
| 85 | int start() const { return start_; } |
| 86 | int end() const { return end_; } |
| 87 | int literals() const { |
| 88 | DCHECK(!has_error_); |
| 89 | return literals_; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 90 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 91 | int properties() const { |
| 92 | DCHECK(!has_error_); |
| 93 | return properties_; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 94 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 95 | StrictMode strict_mode() const { |
| 96 | DCHECK(!has_error_); |
| 97 | return strict_mode_; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 98 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 99 | int is_reference_error() const { return is_reference_error_; } |
| 100 | const char* message() { |
| 101 | DCHECK(has_error_); |
| 102 | return message_; |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 103 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 104 | const char* argument_opt() const { |
| 105 | DCHECK(has_error_); |
| 106 | return argument_opt_; |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 107 | } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 108 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 109 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 110 | bool has_error_; |
| 111 | int start_; |
| 112 | int end_; |
| 113 | // For function entries. |
| 114 | int literals_; |
| 115 | int properties_; |
| 116 | StrictMode strict_mode_; |
| 117 | // For error messages. |
| 118 | const char* message_; |
| 119 | const char* argument_opt_; |
| 120 | bool is_reference_error_; |
| 121 | }; |
| 122 | |
| 123 | |
| 124 | class CompleteParserRecorder : public ParserRecorder { |
| 125 | public: |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 126 | struct Key { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 127 | bool is_one_byte; |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 128 | Vector<const byte> literal_bytes; |
| 129 | }; |
| 130 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 131 | CompleteParserRecorder(); |
| 132 | virtual ~CompleteParserRecorder() {} |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 133 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 134 | virtual void LogFunction(int start, |
| 135 | int end, |
| 136 | int literals, |
| 137 | int properties, |
| 138 | StrictMode strict_mode) { |
| 139 | function_store_.Add(start); |
| 140 | function_store_.Add(end); |
| 141 | function_store_.Add(literals); |
| 142 | function_store_.Add(properties); |
| 143 | function_store_.Add(strict_mode); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 144 | } |
| 145 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 146 | // Logs an error message and marks the log as containing an error. |
| 147 | // Further logging will be ignored, and ExtractData will return a vector |
| 148 | // representing the error only. |
| 149 | virtual void LogMessage(int start, |
| 150 | int end, |
| 151 | const char* message, |
| 152 | const char* argument_opt, |
| 153 | bool is_reference_error_); |
| 154 | ScriptData* GetScriptData(); |
| 155 | |
| 156 | bool HasError() { |
| 157 | return static_cast<bool>(preamble_[PreparseDataConstants::kHasErrorOffset]); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 158 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 159 | Vector<unsigned> ErrorMessageData() { |
| 160 | DCHECK(HasError()); |
| 161 | return function_store_.ToVector(); |
| 162 | } |
| 163 | |
| 164 | private: |
| 165 | void WriteString(Vector<const char> str); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 166 | |
| 167 | // Write a non-negative number to the symbol store. |
| 168 | void WriteNumber(int number); |
| 169 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 170 | Collector<unsigned> function_store_; |
| 171 | unsigned preamble_[PreparseDataConstants::kHeaderSize]; |
| 172 | |
| 173 | #ifdef DEBUG |
| 174 | int prev_start_; |
| 175 | #endif |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 176 | }; |
| 177 | |
| 178 | |
| 179 | } } // namespace v8::internal. |
| 180 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 181 | #endif // V8_PREPARSE_DATA_H_ |