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

Issue 1723313002: [parser] Enforce module-specific identifier restriction (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 10 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 #include "src/parsing/scanner.h" 7 #include "src/parsing/scanner.h"
8 8
9 #include <stdint.h> 9 #include <stdint.h>
10 10
(...skipping 1100 matching lines...) Expand 10 before | Expand all | Expand 10 after
1111 return cp; 1111 return cp;
1112 } 1112 }
1113 return ScanHexNumber<capture_raw>(4); 1113 return ScanHexNumber<capture_raw>(4);
1114 } 1114 }
1115 1115
1116 1116
1117 // ---------------------------------------------------------------------------- 1117 // ----------------------------------------------------------------------------
1118 // Keyword Matcher 1118 // Keyword Matcher
1119 1119
1120 #define KEYWORDS(KEYWORD_GROUP, KEYWORD) \ 1120 #define KEYWORDS(KEYWORD_GROUP, KEYWORD) \
1121 KEYWORD_GROUP('a') \
1122 KEYWORD("await", Token::AWAIT) \
1121 KEYWORD_GROUP('b') \ 1123 KEYWORD_GROUP('b') \
1122 KEYWORD("break", Token::BREAK) \ 1124 KEYWORD("break", Token::BREAK) \
1123 KEYWORD_GROUP('c') \ 1125 KEYWORD_GROUP('c') \
1124 KEYWORD("case", Token::CASE) \ 1126 KEYWORD("case", Token::CASE) \
1125 KEYWORD("catch", Token::CATCH) \ 1127 KEYWORD("catch", Token::CATCH) \
1126 KEYWORD("class", Token::CLASS) \ 1128 KEYWORD("class", Token::CLASS) \
1127 KEYWORD("const", Token::CONST) \ 1129 KEYWORD("const", Token::CONST) \
1128 KEYWORD("continue", Token::CONTINUE) \ 1130 KEYWORD("continue", Token::CONTINUE) \
1129 KEYWORD_GROUP('d') \ 1131 KEYWORD_GROUP('d') \
1130 KEYWORD("debugger", Token::DEBUGGER) \ 1132 KEYWORD("debugger", Token::DEBUGGER) \
1131 KEYWORD("default", Token::DEFAULT) \ 1133 KEYWORD("default", Token::DEFAULT) \
1132 KEYWORD("delete", Token::DELETE) \ 1134 KEYWORD("delete", Token::DELETE) \
1133 KEYWORD("do", Token::DO) \ 1135 KEYWORD("do", Token::DO) \
1134 KEYWORD_GROUP('e') \ 1136 KEYWORD_GROUP('e') \
1135 KEYWORD("else", Token::ELSE) \ 1137 KEYWORD("else", Token::ELSE) \
1136 KEYWORD("enum", Token::FUTURE_RESERVED_WORD) \ 1138 KEYWORD("enum", Token::ENUM) \
1137 KEYWORD("export", Token::EXPORT) \ 1139 KEYWORD("export", Token::EXPORT) \
1138 KEYWORD("extends", Token::EXTENDS) \ 1140 KEYWORD("extends", Token::EXTENDS) \
1139 KEYWORD_GROUP('f') \ 1141 KEYWORD_GROUP('f') \
1140 KEYWORD("false", Token::FALSE_LITERAL) \ 1142 KEYWORD("false", Token::FALSE_LITERAL) \
1141 KEYWORD("finally", Token::FINALLY) \ 1143 KEYWORD("finally", Token::FINALLY) \
1142 KEYWORD("for", Token::FOR) \ 1144 KEYWORD("for", Token::FOR) \
1143 KEYWORD("function", Token::FUNCTION) \ 1145 KEYWORD("function", Token::FUNCTION) \
1144 KEYWORD_GROUP('i') \ 1146 KEYWORD_GROUP('i') \
1145 KEYWORD("if", Token::IF) \ 1147 KEYWORD("if", Token::IF) \
1146 KEYWORD("implements", Token::FUTURE_STRICT_RESERVED_WORD) \ 1148 KEYWORD("implements", Token::FUTURE_STRICT_RESERVED_WORD) \
(...skipping 25 matching lines...) Expand all
1172 KEYWORD("typeof", Token::TYPEOF) \ 1174 KEYWORD("typeof", Token::TYPEOF) \
1173 KEYWORD_GROUP('v') \ 1175 KEYWORD_GROUP('v') \
1174 KEYWORD("var", Token::VAR) \ 1176 KEYWORD("var", Token::VAR) \
1175 KEYWORD("void", Token::VOID) \ 1177 KEYWORD("void", Token::VOID) \
1176 KEYWORD_GROUP('w') \ 1178 KEYWORD_GROUP('w') \
1177 KEYWORD("while", Token::WHILE) \ 1179 KEYWORD("while", Token::WHILE) \
1178 KEYWORD("with", Token::WITH) \ 1180 KEYWORD("with", Token::WITH) \
1179 KEYWORD_GROUP('y') \ 1181 KEYWORD_GROUP('y') \
1180 KEYWORD("yield", Token::YIELD) 1182 KEYWORD("yield", Token::YIELD)
1181 1183
1182
1183 static Token::Value KeywordOrIdentifierToken(const uint8_t* input, 1184 static Token::Value KeywordOrIdentifierToken(const uint8_t* input,
1184 int input_length, bool escaped) { 1185 int input_length, bool escaped) {
1185 DCHECK(input_length >= 1); 1186 DCHECK(input_length >= 1);
1186 const int kMinLength = 2; 1187 const int kMinLength = 2;
1187 const int kMaxLength = 10; 1188 const int kMaxLength = 10;
1188 if (input_length < kMinLength || input_length > kMaxLength) { 1189 if (input_length < kMinLength || input_length > kMaxLength) {
1189 return Token::IDENTIFIER; 1190 return Token::IDENTIFIER;
1190 } 1191 }
1191 switch (input[0]) { 1192 switch (input[0]) {
1192 default: 1193 default:
(...skipping 477 matching lines...) Expand 10 before | Expand all | Expand 10 after
1670 backing_store_.Add(static_cast<uint8_t>((one_byte_length >> 7) | 0x80u)); 1671 backing_store_.Add(static_cast<uint8_t>((one_byte_length >> 7) | 0x80u));
1671 } 1672 }
1672 backing_store_.Add(static_cast<uint8_t>(one_byte_length & 0x7f)); 1673 backing_store_.Add(static_cast<uint8_t>(one_byte_length & 0x7f));
1673 1674
1674 backing_store_.AddBlock(bytes); 1675 backing_store_.AddBlock(bytes);
1675 return backing_store_.EndSequence().start(); 1676 return backing_store_.EndSequence().start();
1676 } 1677 }
1677 1678
1678 } // namespace internal 1679 } // namespace internal
1679 } // namespace v8 1680 } // namespace v8
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