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Side by Side Diff: runtime/vm/parser.h

Issue 1300033002: Fix compiler stats (Closed) Base URL: https://github.com/dart-lang/sdk.git@master
Patch Set: Review comments Created 5 years, 3 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #ifndef VM_PARSER_H_ 5 #ifndef VM_PARSER_H_
6 #define VM_PARSER_H_ 6 #define VM_PARSER_H_
7 7
8 #include "include/dart_api.h" 8 #include "include/dart_api.h"
9 9
10 #include "platform/assert.h" 10 #include "platform/assert.h"
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204 204
205 // Parse and evaluate the metadata expressions at token_pos in the 205 // Parse and evaluate the metadata expressions at token_pos in the
206 // class namespace of class cls (which can be the implicit toplevel 206 // class namespace of class cls (which can be the implicit toplevel
207 // class if the metadata is at the top-level). 207 // class if the metadata is at the top-level).
208 static RawObject* ParseMetadata(const Class& cls, intptr_t token_pos); 208 static RawObject* ParseMetadata(const Class& cls, intptr_t token_pos);
209 209
210 // Build a function containing the initializer expression of the 210 // Build a function containing the initializer expression of the
211 // given static field. 211 // given static field.
212 static ParsedFunction* ParseStaticFieldInitializer(const Field& field); 212 static ParsedFunction* ParseStaticFieldInitializer(const Field& field);
213 213
214 // Returns a RawFunction or RawError.
215 static RawObject* ParseFunctionFromSource(const Class& owning_class,
216 const String& source);
217
218 // Parse a function to retrieve parameter information that is not retained in 214 // Parse a function to retrieve parameter information that is not retained in
219 // the dart::Function object. Returns either an error if the parse fails 215 // the dart::Function object. Returns either an error if the parse fails
220 // (which could be the case for local functions), or a flat array of entries 216 // (which could be the case for local functions), or a flat array of entries
221 // for each parameter. Each parameter entry contains: 217 // for each parameter. Each parameter entry contains:
222 // * a Dart bool indicating whether the parameter was declared final 218 // * a Dart bool indicating whether the parameter was declared final
223 // * its default value (or null if none was declared) 219 // * its default value (or null if none was declared)
224 // * an array of metadata (or null if no metadata was declared). 220 // * an array of metadata (or null if no metadata was declared).
225 enum { 221 enum {
226 kParameterIsFinalOffset, 222 kParameterIsFinalOffset,
227 kParameterDefaultValueOffset, 223 kParameterDefaultValueOffset,
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296 bool is_patch_source() const { 292 bool is_patch_source() const {
297 return script_.kind() == RawScript::kPatchTag; 293 return script_.kind() == RawScript::kPatchTag;
298 } 294 }
299 295
300 intptr_t TokenPos() const { return tokens_iterator_.CurrentPosition(); } 296 intptr_t TokenPos() const { return tokens_iterator_.CurrentPosition(); }
301 297
302 Token::Kind CurrentToken() { 298 Token::Kind CurrentToken() {
303 if (token_kind_ == Token::kILLEGAL) { 299 if (token_kind_ == Token::kILLEGAL) {
304 ComputeCurrentToken(); 300 ComputeCurrentToken();
305 } 301 }
306 INC_STAT(isolate_, num_token_checks, 1);
307 return token_kind_; 302 return token_kind_;
308 } 303 }
309 304
310 void ComputeCurrentToken(); 305 void ComputeCurrentToken();
311 306
312 RawLibraryPrefix* ParsePrefix(); 307 RawLibraryPrefix* ParsePrefix();
313 308
314 Token::Kind LookaheadToken(int num_tokens); 309 Token::Kind LookaheadToken(int num_tokens);
315 String* CurrentLiteral() const; 310 String* CurrentLiteral() const;
316 RawDouble* CurrentDoubleLiteral() const; 311 RawDouble* CurrentDoubleLiteral() const;
317 RawInteger* CurrentIntegerLiteral() const; 312 RawInteger* CurrentIntegerLiteral() const;
318 313
319 // Sets parser to given token position in the stream. 314 // Sets parser to given token position in the stream.
320 void SetPosition(intptr_t position); 315 void SetPosition(intptr_t position);
321 316
322 void ConsumeToken() { 317 void ConsumeToken() {
323 // Reset cache and advance the token. 318 // Reset cache and advance the token.
324 token_kind_ = Token::kILLEGAL; 319 token_kind_ = Token::kILLEGAL;
325 tokens_iterator_.Advance(); 320 tokens_iterator_.Advance();
326 INC_STAT(isolate_, num_tokens_consumed, 1); 321 INC_STAT(thread(), num_tokens_consumed, 1);
327 } 322 }
328 void ConsumeRightAngleBracket(); 323 void ConsumeRightAngleBracket();
329 void CheckToken(Token::Kind token_expected, const char* msg = NULL); 324 void CheckToken(Token::Kind token_expected, const char* msg = NULL);
330 void ExpectToken(Token::Kind token_expected); 325 void ExpectToken(Token::Kind token_expected);
331 void ExpectSemicolon(); 326 void ExpectSemicolon();
332 void UnexpectedToken(); 327 void UnexpectedToken();
333 String* ExpectUserDefinedTypeIdentifier(const char* msg); 328 String* ExpectUserDefinedTypeIdentifier(const char* msg);
334 String* ExpectIdentifier(const char* msg); 329 String* ExpectIdentifier(const char* msg);
335 bool IsAwaitKeyword(); 330 bool IsAwaitKeyword();
336 bool IsYieldKeyword(); 331 bool IsYieldKeyword();
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888 883
889 // Indentation of parser trace. 884 // Indentation of parser trace.
890 intptr_t trace_indent_; 885 intptr_t trace_indent_;
891 886
892 DISALLOW_COPY_AND_ASSIGN(Parser); 887 DISALLOW_COPY_AND_ASSIGN(Parser);
893 }; 888 };
894 889
895 } // namespace dart 890 } // namespace dart
896 891
897 #endif // VM_PARSER_H_ 892 #endif // VM_PARSER_H_
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