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Side by Side Diff: src/parsing/scanner.h

Issue 2751693002: [wasm][asm.js] Adding custom asm.js lexer. (Closed)
Patch Set: fix Created 3 years, 9 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // Features shared by parsing and pre-parsing scanners. 5 // Features shared by parsing and pre-parsing scanners.
6 6
7 #ifndef V8_PARSING_SCANNER_H_ 7 #ifndef V8_PARSING_SCANNER_H_
8 #define V8_PARSING_SCANNER_H_ 8 #define V8_PARSING_SCANNER_H_
9 9
10 #include "src/allocation.h" 10 #include "src/allocation.h"
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318 // Scans the input as a regular expression pattern, next token must be /(=). 318 // Scans the input as a regular expression pattern, next token must be /(=).
319 // Returns true if a pattern is scanned. 319 // Returns true if a pattern is scanned.
320 bool ScanRegExpPattern(); 320 bool ScanRegExpPattern();
321 // Scans the input as regular expression flags. Returns the flags on success. 321 // Scans the input as regular expression flags. Returns the flags on success.
322 Maybe<RegExp::Flags> ScanRegExpFlags(); 322 Maybe<RegExp::Flags> ScanRegExpFlags();
323 323
324 // Scans the input as a template literal 324 // Scans the input as a template literal
325 Token::Value ScanTemplateStart(); 325 Token::Value ScanTemplateStart();
326 Token::Value ScanTemplateContinuation(); 326 Token::Value ScanTemplateContinuation();
327 327
328 Handle<String> SourceUrl(Isolate* isolate) const { 328 Handle<String> SourceUrl(Isolate* isolate) const;
329 Handle<String> tmp; 329 Handle<String> SourceMappingUrl(Isolate* isolate) const;
330 if (source_url_.length() > 0) tmp = source_url_.Internalize(isolate);
331 return tmp;
332 }
333
334 Handle<String> SourceMappingUrl(Isolate* isolate) const {
335 Handle<String> tmp;
336 if (source_mapping_url_.length() > 0)
337 tmp = source_mapping_url_.Internalize(isolate);
338 return tmp;
339 }
340 330
341 bool FoundHtmlComment() const { return found_html_comment_; } 331 bool FoundHtmlComment() const { return found_html_comment_; }
342 332
343 private: 333 private:
344 // Scoped helper for saving & restoring scanner error state. 334 // Scoped helper for saving & restoring scanner error state.
345 // This is used for tagged template literals, in which normally forbidden 335 // This is used for tagged template literals, in which normally forbidden
346 // escape sequences are allowed. 336 // escape sequences are allowed.
347 class ErrorState; 337 class ErrorState;
348 338
349 // Scoped helper for literal recording. Automatically drops the literal 339 // Scoped helper for literal recording. Automatically drops the literal
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778 bool found_html_comment_; 768 bool found_html_comment_;
779 769
780 MessageTemplate::Template scanner_error_; 770 MessageTemplate::Template scanner_error_;
781 Location scanner_error_location_; 771 Location scanner_error_location_;
782 }; 772 };
783 773
784 } // namespace internal 774 } // namespace internal
785 } // namespace v8 775 } // namespace v8
786 776
787 #endif // V8_PARSING_SCANNER_H_ 777 #endif // V8_PARSING_SCANNER_H_
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