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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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178 this->error(p.fPosition, "expected 'lowp', 'mediump', or 'highp', bu
t found '" + | 178 this->error(p.fPosition, "expected 'lowp', 'mediump', or 'highp', bu
t found '" + |
179 p.fText + "'"); | 179 p.fText + "'"); |
180 return; | 180 return; |
181 } | 181 } |
182 if (!this->type()) { | 182 if (!this->type()) { |
183 return; | 183 return; |
184 } | 184 } |
185 this->expect(Token::SEMICOLON, "';'"); | 185 this->expect(Token::SEMICOLON, "';'"); |
186 } | 186 } |
187 | 187 |
188 /* DIRECTIVE(#version) INT_LITERAL ("es" | "compatibility")? | | 188 /* DIRECTIVE(#version) INT_LITERAL | DIRECTIVE(#extension) IDENTIFIER COLON IDEN
TIFIER */ |
189 DIRECTIVE(#extension) IDENTIFIER COLON IDENTIFIER */ | |
190 std::unique_ptr<ASTDeclaration> Parser::directive() { | 189 std::unique_ptr<ASTDeclaration> Parser::directive() { |
191 Token start; | 190 Token start; |
192 if (!this->expect(Token::DIRECTIVE, "a directive", &start)) { | 191 if (!this->expect(Token::DIRECTIVE, "a directive", &start)) { |
193 return nullptr; | 192 return nullptr; |
194 } | 193 } |
195 if (start.fText == "#version") { | 194 if (start.fText == "#version") { |
196 this->expect(Token::INT_LITERAL, "a version number"); | 195 this->expect(Token::INT_LITERAL, "a version number"); |
197 Token next = this->peek(); | 196 // ignored for now |
198 if (next.fText == "es" || next.fText == "compatibility") { | |
199 this->nextToken(); | |
200 } | |
201 // version is ignored for now; it will eventually become an error when w
e stop pretending | |
202 // to be GLSL | |
203 return nullptr; | 197 return nullptr; |
204 } else if (start.fText == "#extension") { | 198 } else if (start.fText == "#extension") { |
205 Token name; | 199 Token name; |
206 if (!this->expect(Token::IDENTIFIER, "an identifier", &name)) { | 200 if (!this->expect(Token::IDENTIFIER, "an identifier", &name)) { |
207 return nullptr; | 201 return nullptr; |
208 } | 202 } |
209 if (!this->expect(Token::COLON, "':'")) { | 203 if (!this->expect(Token::COLON, "':'")) { |
210 return nullptr; | 204 return nullptr; |
211 } | 205 } |
212 // FIXME: need to start paying attention to this token | 206 // FIXME: need to start paying attention to this token |
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1404 bool Parser::identifier(std::string* dest) { | 1398 bool Parser::identifier(std::string* dest) { |
1405 Token t; | 1399 Token t; |
1406 if (this->expect(Token::IDENTIFIER, "identifier", &t)) { | 1400 if (this->expect(Token::IDENTIFIER, "identifier", &t)) { |
1407 *dest = t.fText; | 1401 *dest = t.fText; |
1408 return true; | 1402 return true; |
1409 } | 1403 } |
1410 return false; | 1404 return false; |
1411 } | 1405 } |
1412 | 1406 |
1413 } // namespace | 1407 } // namespace |
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