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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "stdio.h" | 8 #include "stdio.h" |
9 #include "SkSLParser.h" | 9 #include "SkSLParser.h" |
10 #include "SkSLToken.h" | 10 #include "SkSLToken.h" |
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125 } | 125 } |
126 | 126 |
127 Token Parser::nextToken() { | 127 Token Parser::nextToken() { |
128 if (fPushback.fKind != Token::INVALID_TOKEN) { | 128 if (fPushback.fKind != Token::INVALID_TOKEN) { |
129 Token result = fPushback; | 129 Token result = fPushback; |
130 fPushback.fKind = Token::INVALID_TOKEN; | 130 fPushback.fKind = Token::INVALID_TOKEN; |
131 fPushback.fText = ""; | 131 fPushback.fText = ""; |
132 return result; | 132 return result; |
133 } | 133 } |
134 int token = sksllex(fScanner); | 134 int token = sksllex(fScanner); |
135 std::string text; | 135 return Token(Position(skslget_lineno(fScanner), -1), (Token::Kind) token, |
136 switch ((Token::Kind) token) { | 136 token == Token::END_OF_FILE ? "<end of file>" : |
137 case Token::IDENTIFIER: // fall through | 137 std::string(skslget_text(fScanner
))); |
138 case Token::INT_LITERAL: // fall through | |
139 case Token::FLOAT_LITERAL: // fall through | |
140 case Token::DIRECTIVE: | |
141 text = std::string(skslget_text(fScanner)); | |
142 break; | |
143 default: | |
144 break; | |
145 } | |
146 return Token(Position(skslget_lineno(fScanner), -1), (Token::Kind) token, te
xt); | |
147 } | 138 } |
148 | 139 |
149 void Parser::pushback(Token t) { | 140 void Parser::pushback(Token t) { |
150 ASSERT(fPushback.fKind == Token::INVALID_TOKEN); | 141 ASSERT(fPushback.fKind == Token::INVALID_TOKEN); |
151 fPushback = t; | 142 fPushback = t; |
152 } | 143 } |
153 | 144 |
154 Token Parser::peek() { | 145 Token Parser::peek() { |
155 fPushback = this->nextToken(); | 146 fPushback = this->nextToken(); |
156 return fPushback; | 147 return fPushback; |
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1454 bool Parser::identifier(std::string* dest) { | 1445 bool Parser::identifier(std::string* dest) { |
1455 Token t; | 1446 Token t; |
1456 if (this->expect(Token::IDENTIFIER, "identifier", &t)) { | 1447 if (this->expect(Token::IDENTIFIER, "identifier", &t)) { |
1457 *dest = t.fText; | 1448 *dest = t.fText; |
1458 return true; | 1449 return true; |
1459 } | 1450 } |
1460 return false; | 1451 return false; |
1461 } | 1452 } |
1462 | 1453 |
1463 } // namespace | 1454 } // namespace |
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