1 // Copyright 2016 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_REGEXP_REGEXP_UTILS_H_ 6 #define V8_REGEXP_REGEXP_UTILS_H_ 7 8 #include "src/objects.h" 9 10 namespace v8 { 11 namespace internal { 12 13 class RegExpMatchInfo; 14 15 // Helper methods for C++ regexp builtins. 16 class RegExpUtils : public AllStatic { 17 public: 18 // Last match info accessors. 19 static Handle<String> GenericCaptureGetter(Isolate* isolate, 20 Handle<RegExpMatchInfo> match_info, 21 int capture, bool* ok = nullptr); 22 23 // Last index (RegExp.lastIndex) accessors. 24 static V8_WARN_UNUSED_RESULT MaybeHandle<Object> SetLastIndex( 25 Isolate* isolate, Handle<JSReceiver> regexp, uint64_t value); 26 static V8_WARN_UNUSED_RESULT MaybeHandle<Object> GetLastIndex( 27 Isolate* isolate, Handle<JSReceiver> recv); 28 29 // ES#sec-regexpexec Runtime Semantics: RegExpExec ( R, S ) 30 static V8_WARN_UNUSED_RESULT MaybeHandle<Object> RegExpExec( 31 Isolate* isolate, Handle<JSReceiver> regexp, Handle<String> string, 32 Handle<Object> exec); 33 34 // ES#sec-isregexp IsRegExp ( argument ) 35 // Includes checking of the match property. 36 static Maybe<bool> IsRegExp(Isolate* isolate, Handle<Object> object); 37 38 // Checks whether the given object is an unmodified JSRegExp instance. 39 // Neither the object's map, nor its prototype's map may be modified. 40 static bool IsUnmodifiedRegExp(Isolate* isolate, Handle<Object> obj); 41 42 // ES#sec-advancestringindex 43 // AdvanceStringIndex ( S, index, unicode ) 44 static uint64_t AdvanceStringIndex(Handle<String> string, uint64_t index, 45 bool unicode); 46 static V8_WARN_UNUSED_RESULT MaybeHandle<Object> SetAdvancedStringIndex( 47 Isolate* isolate, Handle<JSReceiver> regexp, Handle<String> string, 48 bool unicode); 49 }; 50 51 } // namespace internal 52 } // namespace v8 53 54 #endif // V8_REGEXP_REGEXP_UTILS_H_ 55
