Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame^] | 1 | // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | // The infrastructure used for (localized) message reporting in V8. |
| 29 | // |
| 30 | // Note: there's a big unresolved issue about ownership of the data |
| 31 | // structures used by this framework. |
| 32 | |
| 33 | #ifndef V8_MESSAGES_H_ |
| 34 | #define V8_MESSAGES_H_ |
| 35 | |
| 36 | #include "handles-inl.h" |
| 37 | |
| 38 | // Forward declaration of MessageLocation. |
| 39 | namespace v8 { |
| 40 | namespace internal { |
| 41 | class MessageLocation; |
| 42 | } } // namespace v8::internal |
| 43 | |
| 44 | |
| 45 | class V8Message { |
| 46 | public: |
| 47 | V8Message(char* type, |
| 48 | v8::internal::Handle<v8::internal::JSArray> args, |
| 49 | const v8::internal::MessageLocation* loc) : |
| 50 | type_(type), args_(args), loc_(loc) { } |
| 51 | char* type() const { return type_; } |
| 52 | v8::internal::Handle<v8::internal::JSArray> args() const { return args_; } |
| 53 | const v8::internal::MessageLocation* loc() const { return loc_; } |
| 54 | private: |
| 55 | char* type_; |
| 56 | v8::internal::Handle<v8::internal::JSArray> const args_; |
| 57 | const v8::internal::MessageLocation* loc_; |
| 58 | }; |
| 59 | |
| 60 | |
| 61 | namespace v8 { |
| 62 | namespace internal { |
| 63 | |
| 64 | struct Language; |
| 65 | class SourceInfo; |
| 66 | |
| 67 | class MessageLocation { |
| 68 | public: |
| 69 | MessageLocation(Handle<Script> script, |
| 70 | int start_pos, |
| 71 | int end_pos) |
| 72 | : script_(script), |
| 73 | start_pos_(start_pos), |
| 74 | end_pos_(end_pos) { } |
| 75 | MessageLocation() : start_pos_(-1), end_pos_(-1) { } |
| 76 | |
| 77 | Handle<Script> script() const { return script_; } |
| 78 | int start_pos() const { return start_pos_; } |
| 79 | int end_pos() const { return end_pos_; } |
| 80 | |
| 81 | private: |
| 82 | Handle<Script> script_; |
| 83 | int start_pos_; |
| 84 | int end_pos_; |
| 85 | }; |
| 86 | |
| 87 | |
| 88 | // A message handler is a convenience interface for accessing the list |
| 89 | // of message listeners registered in an environment |
| 90 | class MessageHandler { |
| 91 | public: |
| 92 | // Report a message (w/o JS heap allocation). |
| 93 | static void ReportMessage(const char* msg); |
| 94 | |
| 95 | // Returns a message object for the API to use. |
| 96 | static Handle<Object> MakeMessageObject(const char* type, |
| 97 | MessageLocation* loc, |
| 98 | Vector< Handle<Object> > args, |
| 99 | Handle<String> stack_trace); |
| 100 | |
| 101 | // Report a formatted message (needs JS allocation). |
| 102 | static void ReportMessage(MessageLocation* loc, Handle<Object> message); |
| 103 | |
| 104 | static void DefaultMessageReport(const MessageLocation* loc, |
| 105 | Handle<Object> message_obj); |
| 106 | static Handle<String> GetMessage(Handle<Object> data); |
| 107 | static SmartPointer<char> GetLocalizedMessage(Handle<Object> data); |
| 108 | }; |
| 109 | |
| 110 | } } // namespace v8::internal |
| 111 | |
| 112 | #endif // V8_MESSAGES_H_ |