Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_PENDING_COMPILATION_ERROR_HANDLER_H_ |
| 6 | #define V8_PENDING_COMPILATION_ERROR_HANDLER_H_ |
| 7 | |
| 8 | #include "src/base/macros.h" |
| 9 | #include "src/globals.h" |
| 10 | #include "src/handles.h" |
| 11 | #include "src/messages.h" |
| 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | |
| 16 | class AstRawString; |
| 17 | class Isolate; |
| 18 | class Script; |
| 19 | |
| 20 | // Helper class for handling pending compilation errors consistently in various |
| 21 | // compilation phases. |
| 22 | class PendingCompilationErrorHandler { |
| 23 | public: |
| 24 | PendingCompilationErrorHandler() |
| 25 | : has_pending_error_(false), |
| 26 | start_position_(-1), |
| 27 | end_position_(-1), |
| 28 | message_(MessageTemplate::kNone), |
| 29 | arg_(nullptr), |
| 30 | char_arg_(nullptr), |
| 31 | error_type_(kSyntaxError) {} |
| 32 | |
| 33 | void ReportMessageAt(int start_position, int end_position, |
| 34 | MessageTemplate::Template message, |
| 35 | const char* arg = nullptr, |
| 36 | ParseErrorType error_type = kSyntaxError) { |
| 37 | if (has_pending_error_) return; |
| 38 | has_pending_error_ = true; |
| 39 | start_position_ = start_position; |
| 40 | end_position_ = end_position; |
| 41 | message_ = message; |
| 42 | char_arg_ = arg; |
| 43 | arg_ = nullptr; |
| 44 | error_type_ = error_type; |
| 45 | } |
| 46 | |
| 47 | void ReportMessageAt(int start_position, int end_position, |
| 48 | MessageTemplate::Template message, |
| 49 | const AstRawString* arg, |
| 50 | ParseErrorType error_type = kSyntaxError) { |
| 51 | if (has_pending_error_) return; |
| 52 | has_pending_error_ = true; |
| 53 | start_position_ = start_position; |
| 54 | end_position_ = end_position; |
| 55 | message_ = message; |
| 56 | char_arg_ = nullptr; |
| 57 | arg_ = arg; |
| 58 | error_type_ = error_type; |
| 59 | } |
| 60 | |
| 61 | void ReportMessageAt(int start_position, int end_position, |
| 62 | MessageTemplate::Template message, Handle<String> arg, |
| 63 | ParseErrorType error_type = kSyntaxError) { |
| 64 | if (has_pending_error_) return; |
| 65 | has_pending_error_ = true; |
| 66 | start_position_ = start_position; |
| 67 | end_position_ = end_position; |
| 68 | message_ = message; |
| 69 | char_arg_ = nullptr; |
| 70 | arg_ = nullptr; |
| 71 | handle_arg_ = arg; |
| 72 | error_type_ = error_type; |
| 73 | } |
| 74 | |
| 75 | bool has_pending_error() const { return has_pending_error_; } |
| 76 | |
| 77 | void ThrowPendingError(Isolate* isolate, Handle<Script> script); |
| 78 | |
| 79 | private: |
| 80 | bool has_pending_error_; |
| 81 | int start_position_; |
| 82 | int end_position_; |
| 83 | MessageTemplate::Template message_; |
| 84 | const AstRawString* arg_; |
| 85 | const char* char_arg_; |
| 86 | Handle<String> handle_arg_; |
| 87 | ParseErrorType error_type_; |
| 88 | |
| 89 | DISALLOW_COPY_AND_ASSIGN(PendingCompilationErrorHandler); |
| 90 | }; |
| 91 | |
| 92 | } // namespace internal |
| 93 | } // namespace v8 |
| 94 | #endif // V8_PENDING_COMPILATION_ERROR_HANDLER_H_ |