OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 |
(...skipping 2894 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
2905 String::cast(pattern_regexp->DataAt(JSRegExp::kAtomPatternIndex)); | 2905 String::cast(pattern_regexp->DataAt(JSRegExp::kAtomPatternIndex)); |
2906 int subject_len = subject->length(); | 2906 int subject_len = subject->length(); |
2907 int pattern_len = pattern->length(); | 2907 int pattern_len = pattern->length(); |
2908 int replacement_len = replacement->length(); | 2908 int replacement_len = replacement->length(); |
2909 | 2909 |
2910 FindStringIndicesDispatch( | 2910 FindStringIndicesDispatch( |
2911 isolate, *subject, pattern, &indices, 0xffffffff, zone); | 2911 isolate, *subject, pattern, &indices, 0xffffffff, zone); |
2912 | 2912 |
2913 int matches = indices.length(); | 2913 int matches = indices.length(); |
2914 if (matches == 0) { | 2914 if (matches == 0) { |
2915 JSRegExp::ResetLastIndex(isolate, pattern_regexp); | 2915 return isolate->heap()->undefined_value(); |
2916 return *subject; | |
2917 } | 2916 } |
2918 | 2917 |
2919 // Detect integer overflow. | 2918 // Detect integer overflow. |
2920 int64_t result_len_64 = | 2919 int64_t result_len_64 = |
2921 (static_cast<int64_t>(replacement_len) - | 2920 (static_cast<int64_t>(replacement_len) - |
2922 static_cast<int64_t>(pattern_len)) * | 2921 static_cast<int64_t>(pattern_len)) * |
2923 static_cast<int64_t>(matches) + | 2922 static_cast<int64_t>(matches) + |
2924 static_cast<int64_t>(subject_len); | 2923 static_cast<int64_t>(subject_len); |
2925 if (result_len_64 > INT_MAX) return Failure::OutOfMemoryException(0x11); | 2924 if (result_len_64 > INT_MAX) return Failure::OutOfMemoryException(0x11); |
2926 int result_len = static_cast<int>(result_len_64); | 2925 int result_len = static_cast<int>(result_len_64); |
(...skipping 81 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3008 isolate, subject, regexp, replacement, last_match_info); | 3007 isolate, subject, regexp, replacement, last_match_info); |
3009 } | 3008 } |
3010 } | 3009 } |
3011 | 3010 |
3012 RegExpImpl::GlobalCache global_cache(regexp, subject, is_global, isolate); | 3011 RegExpImpl::GlobalCache global_cache(regexp, subject, is_global, isolate); |
3013 if (global_cache.HasException()) return Failure::Exception(); | 3012 if (global_cache.HasException()) return Failure::Exception(); |
3014 | 3013 |
3015 int32_t* current_match = global_cache.FetchNext(); | 3014 int32_t* current_match = global_cache.FetchNext(); |
3016 if (current_match == NULL) { | 3015 if (current_match == NULL) { |
3017 if (global_cache.HasException()) return Failure::Exception(); | 3016 if (global_cache.HasException()) return Failure::Exception(); |
3018 JSRegExp::ResetLastIndex(isolate, regexp); | 3017 return isolate->heap()->undefined_value(); |
3019 return *subject; | |
3020 } | 3018 } |
3021 | 3019 |
3022 // Guessing the number of parts that the final result string is built | 3020 // Guessing the number of parts that the final result string is built |
3023 // from. Global regexps can match any number of times, so we guess | 3021 // from. Global regexps can match any number of times, so we guess |
3024 // conservatively. | 3022 // conservatively. |
3025 int expected_parts = | 3023 int expected_parts = |
3026 (compiled_replacement.parts() + 1) * (is_global ? 4 : 1) + 1; | 3024 (compiled_replacement.parts() + 1) * (is_global ? 4 : 1) + 1; |
3027 ReplacementStringBuilder builder(isolate->heap(), | 3025 ReplacementStringBuilder builder(isolate->heap(), |
3028 subject, | 3026 subject, |
3029 expected_parts); | 3027 expected_parts); |
(...skipping 77 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3107 last_match_info); | 3105 last_match_info); |
3108 } | 3106 } |
3109 } | 3107 } |
3110 | 3108 |
3111 RegExpImpl::GlobalCache global_cache(regexp, subject, is_global, isolate); | 3109 RegExpImpl::GlobalCache global_cache(regexp, subject, is_global, isolate); |
3112 if (global_cache.HasException()) return Failure::Exception(); | 3110 if (global_cache.HasException()) return Failure::Exception(); |
3113 | 3111 |
3114 int32_t* current_match = global_cache.FetchNext(); | 3112 int32_t* current_match = global_cache.FetchNext(); |
3115 if (current_match == NULL) { | 3113 if (current_match == NULL) { |
3116 if (global_cache.HasException()) return Failure::Exception(); | 3114 if (global_cache.HasException()) return Failure::Exception(); |
3117 JSRegExp::ResetLastIndex(isolate, regexp); | 3115 return isolate->heap()->undefined_value(); |
3118 return *subject; | |
3119 } | 3116 } |
3120 | 3117 |
3121 int start = current_match[0]; | 3118 int start = current_match[0]; |
3122 int end = current_match[1]; | 3119 int end = current_match[1]; |
3123 int capture_count = regexp->CaptureCount(); | 3120 int capture_count = regexp->CaptureCount(); |
3124 int subject_length = subject->length(); | 3121 int subject_length = subject->length(); |
3125 | 3122 |
3126 int new_length = subject_length - (end - start); | 3123 int new_length = subject_length - (end - start); |
3127 if (new_length == 0) return isolate->heap()->empty_string(); | 3124 if (new_length == 0) return isolate->heap()->empty_string(); |
3128 | 3125 |
(...skipping 10391 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
13520 // Handle last resort GC and make sure to allow future allocations | 13517 // Handle last resort GC and make sure to allow future allocations |
13521 // to grow the heap without causing GCs (if possible). | 13518 // to grow the heap without causing GCs (if possible). |
13522 isolate->counters()->gc_last_resort_from_js()->Increment(); | 13519 isolate->counters()->gc_last_resort_from_js()->Increment(); |
13523 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 13520 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
13524 "Runtime::PerformGC"); | 13521 "Runtime::PerformGC"); |
13525 } | 13522 } |
13526 } | 13523 } |
13527 | 13524 |
13528 | 13525 |
13529 } } // namespace v8::internal | 13526 } } // namespace v8::internal |
OLD | NEW |