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506 Commits

Author SHA1 Message Date
Terence Parr aca3e0ddb2 make trim parse trees singular 2012-03-12 15:40:22 -07:00
Terence Parr dc627158e6 loop invar. code motion 2012-03-12 14:19:19 -07:00
Terence Parr 2fc9760ba7 Merge remote-tracking branch 'sharwell/ambig-sempred' 2012-03-12 13:50:45 -07:00
Terence Parr 79f204ff94 Merge commit 'fa9ec19' 2012-03-12 13:22:55 -07:00
Terence Parr 754408da27 Merge commit '86671d3' 2012-03-12 13:19:35 -07:00
Sam Harwell dce72dcbfb * Recognizer._listeners initialized to have a single ConsoleErrorListener 
* Use CopyOnWriteArrayList so listeners can be added/removed in callbacks
* Remove special handling for _listeners null or empty (never null, ConsoleErrorListener will be present if feature is desired)
 2012-03-12 15:01:21 -05:00
Sam Harwell 50180825d9 Add boolean field ParserATNSimulator.reportAmbiguities (default true). When false, ambiguous alts aren't reported which allows usage of (the faster) incomplete semantic predicate evaluation even within execATN. 2012-03-10 16:41:57 -06:00
Sam Harwell 04cd48e88d No need to fully evaluate predicates when called from execDFA because ambiguous alts aren't reported anyway. 2012-03-10 16:32:10 -06:00
Sam Harwell 2cc39c2f9b Evaluate predicates for all ambiguous alternatives and report if still ambiguous after predicate evaluation. Remove misleading message insufficient predicates. Fixes antlr/antlr4#31. Partially addresses antlr/antlr4#39. 2012-03-10 16:16:39 -06:00
Sam Harwell 86671d30fb Tweak comments 2012-03-10 13:23:02 -06:00
Sam Harwell 7525bb6e1d Semantic predicates now evaluate with standard min-alt selection 2012-03-08 13:53:45 -06:00
Terence Parr a9e74ce399 Merge branch 'failed-predicate-message' of git://github.com/sharwell/antlr4 2012-03-06 13:28:47 -08:00
Sam Harwell 5deab167a1 ParseTreeVisitor.visit takes a ParseTree... only visitChildren takes a RuleNode 2012-03-04 12:52:43 -06:00
Sam Harwell b570641e2b Simplify ParseTree.visitChildren; ParseTree.visit and visitChildren take a RuleNode parameter; update comments 2012-03-04 12:17:43 -06:00
Sam Harwell a948736729 TerminalNodeImpl.isErrorNode now tests for ErrorNode interface instead of ErrorNodeImpl implementation 2012-03-03 21:57:49 -06:00
Sam Harwell 80b3ec8c62 Dispatch accept() for terminal nodes to visitor 2012-03-03 21:57:08 -06:00
Terence Parr 0375f8318a rename a parameter 2012-03-01 18:01:27 -08:00
Terence Parr 2ba5a1f12a Made the parse tree visitor walk ParseTree objects not ParserRuleContext objects. This necessitated pulling up the accept() and toStringTree(Parser) methods into ParseTree. 2012-03-01 17:57:49 -08:00
Sam Harwell fa9ec191bd Add TrimToSizeListener and Parser.get/setTrimParseTrees 2012-02-29 11:22:54 -06:00
Sam Harwell c3cd99858c Reduce size of generated code by emitting predicate text instead of full failed predicate message 2012-02-29 08:14:42 -06:00
Terence Parr dd69a7532d getToken/s returns TerminalNode now per Sam's suggestion. altered tests. seems correct. 2012-02-27 21:39:30 -08:00
Terence Parr 9ae92a5cef reformat 2012-02-27 21:32:25 -08:00
Terence Parr 67b2e6d7c1 forgot to move Pair etc... 2012-02-26 21:55:23 -08:00
Terence Parr e9a3de645a add useful method to get a->b pairs out 2012-02-26 15:55:46 -08:00
Terence Parr 41be88dcd5 mv to runtime 2012-02-26 15:49:45 -08:00
Sam Harwell bedc502d33 Set the listeners list back to null if all listeners are removed from it 2012-02-26 17:33:52 -06:00
Terence Parr 1e438746be added interface for error nodes, method in terminalnode. 2012-02-26 15:32:18 -08:00
Terence Parr db1b86af91 alter visitTerminal interface, add visitErrorNode. 2012-02-25 17:03:41 -08:00
Terence Parr 528e9c7b86 fix cut/paste error 2012-02-25 16:09:29 -08:00
Terence Parr 600c4bbd91 crap. sun already made IdentityHashMap; rm'ing my version 2012-02-25 16:07:34 -08:00
Terence Parr 73ae2b0bfc Added ParseTreeProperty and added generically useful Map that ignores key.hashCode and equals() and simply uses key identity instead. In particular, this is useful for ANTLR because parse trees are actually interfaces laid on top of the rule context objects used by ANTLR's grammar analysis. These context objects use special equals methods and so on. Plus, when we want to annotate trees with values, we want a specific note to have a value. Identity is what we intend. 2012-02-25 13:43:32 -08:00
Sam Harwell a74da2df60 Use ==ParserRuleContext.EMPTY instead of .isEmpty() 2012-02-24 15:57:43 -06:00
Sam Harwell 9bf6f284df Code cleanup (little things like using .isEmpty() and StringBuilder, and specify some small-scale generic arguments) 2012-02-23 16:42:36 -06:00
Sam Harwell 1e3e092326 Fix unchecked warnings in clone() 2012-02-23 16:13:15 -06:00
Sam Harwell e400f5b1a1 Move Recognizer._errHandler to Parser class 2012-02-23 16:13:14 -06:00
Sam Harwell 1c8efd6a48 Allow contravariant error listeners 2012-02-23 16:13:13 -06:00
Sam Harwell 6c26917b90 Use generic List instead of generic array for listeners 2012-02-23 16:13:12 -06:00
Sam Harwell 7dcb148d73 CommonTokenStream now extends BufferedTokenStream<Token> instead of BufferedTokenStream<CommonToken>. Token interface provides the same information and the change helps the work on improving generics. 2012-02-23 16:13:11 -06:00
Sam Harwell d7dbef2782 Can get token start and stop index from Token interface now 2012-02-23 16:13:11 -06:00
Sam Harwell 1492648d26 Add missing @Override annotations 2012-02-23 16:13:06 -06:00
Sam Harwell 96c08bec52 Remove unused imports 2012-02-23 16:12:02 -06:00
Terence Parr b459dafeb9 empty alternatives didn't trigger listener events. overrode getParent in ParserRuleContext to make type more specific. 2012-02-23 12:16:14 -08:00
Terence Parr 8a34176d82 added listener unit tests. fixed bug that didn't create ctx getters properly for recursive rules. added Symbol extends Token to parse tree stuff. added visitTerminal to Visitor. recursive alts now track their original, unedited AltAST subtree so we can properly count rule refs etc... later. dup of RuleRefAST was making wrong node. don't gen dispatch methods if no listener. 2012-02-22 12:44:33 -08:00
Terence Parr 58ef729be5 renamed next to target. factored out to methods, commented code. 2012-02-21 12:47:34 -08:00
Terence Parr 0e23c7e2a3 Merge commit '611728a3806d6a8c9fe44a538d34b448784986c1' 2012-02-21 12:14:11 -08:00
Sam Harwell 5fb389b6e4 Improve lexer performance during warm-up by tracking DFA states within exec (ATN) and using existing edges when available 2012-02-20 19:20:50 -06:00
Sam Harwell 611728a380 Update testPerformance to show information about DFA states in the lexer 2012-02-20 18:51:26 -06:00
Sam Harwell a81b1a17eb Extract abstract method in Recognizer for Parser.getGrammarFileName() and generated lexer's getGrammarFileName(). Make Recognizer.getTokenNames(), getRuleNames(), and getATN() abstract - implementations are always generated. 2012-02-20 17:18:57 -06:00
Sam Harwell 2982f4b5a6 Add comments describing the semantics of an ATNConfig set with partially predicated alts in ParserATNSimulator 2012-02-20 15:43:02 -06:00
Sam Harwell 16fa8ba4f4 Add comments describing the context depth latch in ParserATNSimulator.closure 2012-02-20 15:25:58 -06:00