org.codehaus.groovy.antlr.java
Class JavaRecognizer

java.lang.Object
  extended by antlr.Parser
      extended by antlr.LLkParser
          extended by org.codehaus.groovy.antlr.java.JavaRecognizer
All Implemented Interfaces:
JavaTokenTypes

public class JavaRecognizer
extends LLkParser
implements JavaTokenTypes

Java 1.5 Recognizer Run 'java Main [-showtree] directory-full-of-java-files' [The -showtree option pops up a Swing frame that shows the AST constructed from the parser.] Run 'java Main ' Contributing authors: Jeremy Rayner groovy@ross-rayner.com John Mitchell johnm@non.net Terence Parr parrt@magelang.com John Lilley jlilley@empathy.com Scott Stanchfield thetick@magelang.com Markus Mohnen mohnen@informatik.rwth-aachen.de Peter Williams pete.williams@sun.com Allan Jacobs Allan.Jacobs@eng.sun.com Steve Messick messick@redhills.com John Pybus john@pybus.org Version 1.00 December 9, 1997 -- initial release Version 1.01 December 10, 1997 fixed bug in octal def (0..7 not 0..8) Version 1.10 August 1998 (parrt) added tree construction fixed definition of WS,comments for mac,pc,unix newlines added unary plus Version 1.11 (Nov 20, 1998) Added "shutup" option to turn off last ambig warning. Fixed inner class def to allow named class defs as statements synchronized requires compound not simple statement add [] after builtInType DOT class in primaryExpression "const" is reserved but not valid..removed from modifiers Version 1.12 (Feb 2, 1999) Changed LITERAL_xxx to xxx in tree grammar. Updated java.g to use tokens {...} now for 2.6.0 (new feature). Version 1.13 (Apr 23, 1999) Didn't have (stat)? for else clause in tree parser. Didn't gen ASTs for interface extends. Updated tree parser too. Updated to 2.6.0. Version 1.14 (Jun 20, 1999) Allowed final/abstract on local classes. Removed local interfaces from methods Put instanceof precedence where it belongs...in relationalExpr It also had expr not type as arg; fixed it. Missing ! on SEMI in classBlock fixed: (expr) + "string" was parsed incorrectly (+ as unary plus). fixed: didn't like Object[].class in parser or tree parser Version 1.15 (Jun 26, 1999) Screwed up rule with instanceof in it. :( Fixed. Tree parser didn't like (expr).something; fixed. Allowed multiple inheritance in tree grammar. oops. Version 1.16 (August 22, 1999) Extending an interface built a wacky tree: had extra EXTENDS. Tree grammar didn't allow multiple superinterfaces. Tree grammar didn't allow empty var initializer: {} Version 1.17 (October 12, 1999) ESC lexer rule allowed 399 max not 377 max. java.tree.g didn't handle the expression of synchronized statements. Version 1.18 (August 12, 2001) Terence updated to Java 2 Version 1.3 by observing/combining work of Allan Jacobs and Steve Messick. Handles 1.3 src. Summary: o primary didn't include boolean.class kind of thing o constructor calls parsed explicitly now: see explicitConstructorInvocation o add strictfp modifier o missing objBlock after new expression in tree grammar o merged local class definition alternatives, moved after declaration o fixed problem with ClassName.super.field o reordered some alternatives to make things more efficient o long and double constants were not differentiated from int/float o whitespace rule was inefficient: matched only one char o add an examples directory with some nasty 1.3 cases o made Main.java use buffered IO and a Reader for Unicode support o supports UNICODE? Using Unicode charVocabulay makes code file big, but only in the bitsets at the end. I need to make ANTLR generate unicode bitsets more efficiently. Version 1.19 (April 25, 2002) Terence added in nice fixes by John Pybus concerning floating constants and problems with super() calls. John did a nice reorg of the primary/postfix expression stuff to read better and makes f.g.super() parse properly (it was METHOD_CALL not a SUPER_CTOR_CALL). Also: o "finally" clause was a root...made it a child of "try" o Added stuff for asserts too for Java 1.4, but *commented out* as it is not backward compatible. Version 1.20 (October 27, 2002) Terence ended up reorging John Pybus' stuff to remove some nondeterminisms and some syntactic predicates. Note that the grammar is stricter now; e.g., this(...) must be the first statement. Trinary ?: operator wasn't working as array name: (isBig ? bigDigits : digits)[i]; Checked parser/tree parser on source for Resin-2.0.5, jive-2.1.1, jdk 1.3.1, Lucene, antlr 2.7.2a4, and the 110k-line jGuru server source. Version 1.21 (October 17, 2003) Fixed lots of problems including: Ray Waldin: add typeDefinition to interfaceBlock in java.tree.g He found a problem/fix with floating point that start with 0 Ray also fixed problem that (int.class) was not recognized. Thorsten van Ellen noticed that \n are allowed incorrectly in strings. TJP fixed CHAR_LITERAL analogously. Version 1.21.2 (March, 2003) Changes by Matt Quail to support generics (as per JDK1.5/JSR14) Notes: o We only allow the "extends" keyword and not the "implements" keyword, since thats what JSR14 seems to imply. o Thanks to Monty Zukowski for his help on the antlr-interest mail list. o Thanks to Alan Eliasen for testing the grammar over his Fink source base Version 1.22 (July, 2004) Changes by Michael Studman to support Java 1.5 language extensions Notes: o Added support for annotations types o Finished off Matt Quail's generics enhancements to support bound type arguments o Added support for new for statement syntax o Added support for static import syntax o Added support for enum types o Tested against JDK 1.5 source base and source base of jdigraph project o Thanks to Matt Quail for doing the hard part by doing most of the generics work Version 1.22.1 (July 28, 2004) Bug/omission fixes for Java 1.5 language support o Fixed tree structure bug with classOrInterface - thanks to Pieter Vangorpto for spotting this o Fixed bug where incorrect handling of SR and BSR tokens would cause type parameters to be recognised as type arguments. o Enabled type parameters on constructors, annotations on enum constants and package definitions o Fixed problems when parsing if ((char.class.equals(c))) {} - solution by Matt Quail at Cenqua Version 1.22.2 (July 28, 2004) Slight refactoring of Java 1.5 language support o Refactored for/"foreach" productions so that original literal "for" literal is still used but the for sub-clauses vary by token type o Fixed bug where type parameter was not included in generic constructor's branch of AST Version 1.22.3 (August 26, 2004) Bug fixes as identified by Michael Stahl; clean up of tabs/spaces and other refactorings o Fixed typeParameters omission in identPrimary and newStatement o Replaced GT reconcilliation code with simple semantic predicate o Adapted enum/assert keyword checking support from Michael Stahl's java15 grammar o Refactored typeDefinition production and field productions to reduce duplication Version 1.22.4 (October 21, 2004) Small bux fixes o Added typeArguments to explicitConstructorInvocation, e.g. new MyParameterised() o Added typeArguments to postfixExpression productions for anonymous inner class super constructor invocation, e.g. new Outer().super() o Fixed bug in array declarations identified by Geoff Roy Version 1.22.4.j.1 Changes by Jeremy Rayner to support java2groovy tool o I have taken java.g for Java1.5 from Michael Studman (1.22.4) and have made some changes to enable use by java2groovy tool (Jan 2007) This grammar is in the PUBLIC DOMAIN


Field Summary
static String[] _tokenNames
           
static BitSet _tokenSet_0
           
static BitSet _tokenSet_1
           
static BitSet _tokenSet_10
           
static BitSet _tokenSet_11
           
static BitSet _tokenSet_12
           
static BitSet _tokenSet_13
           
static BitSet _tokenSet_14
           
static BitSet _tokenSet_15
           
static BitSet _tokenSet_16
           
static BitSet _tokenSet_17
           
static BitSet _tokenSet_18
           
static BitSet _tokenSet_19
           
static BitSet _tokenSet_2
           
static BitSet _tokenSet_20
           
static BitSet _tokenSet_21
           
static BitSet _tokenSet_22
           
static BitSet _tokenSet_23
           
static BitSet _tokenSet_24
           
static BitSet _tokenSet_25
           
static BitSet _tokenSet_26
           
static BitSet _tokenSet_27
           
static BitSet _tokenSet_28
           
static BitSet _tokenSet_29
           
static BitSet _tokenSet_3
           
static BitSet _tokenSet_30
           
static BitSet _tokenSet_31
           
static BitSet _tokenSet_32
           
static BitSet _tokenSet_33
           
static BitSet _tokenSet_34
           
static BitSet _tokenSet_35
           
static BitSet _tokenSet_36
           
static BitSet _tokenSet_37
           
static BitSet _tokenSet_38
           
static BitSet _tokenSet_39
           
static BitSet _tokenSet_4
           
static BitSet _tokenSet_40
           
static BitSet _tokenSet_41
           
static BitSet _tokenSet_42
           
static BitSet _tokenSet_43
           
static BitSet _tokenSet_44
           
static BitSet _tokenSet_45
           
static BitSet _tokenSet_46
           
static BitSet _tokenSet_47
           
static BitSet _tokenSet_48
           
static BitSet _tokenSet_5
           
static BitSet _tokenSet_6
           
static BitSet _tokenSet_7
           
static BitSet _tokenSet_8
           
static BitSet _tokenSet_9
           
 
Fields inherited from class antlr.Parser
astFactory, inputState, returnAST, tokenNames, tokenTypeToASTClassMap, traceDepth
 
Fields inherited from interface org.codehaus.groovy.antlr.java.JavaTokenTypes
ABSTRACT, ANNOTATION, ANNOTATION_ARRAY_INIT, ANNOTATION_DEF, ANNOTATION_FIELD_DEF, ANNOTATION_MEMBER_VALUE_PAIR, ANNOTATIONS, ARRAY_DECLARATOR, ARRAY_INIT, ASSIGN, AT, BAND, BAND_ASSIGN, BLOCK, BNOT, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, CASE_GROUP, CHAR_LITERAL, CLASS_DEF, COLON, COMMA, CTOR_CALL, DEC, DIV, DIV_ASSIGN, DOT, ELIST, EMPTY_STAT, ENUM_CONSTANT_DEF, ENUM_DEF, EOF, EQUAL, ESC, EXPONENT, EXPR, EXTENDS_CLAUSE, FINAL, FLOAT_SUFFIX, FOR_CONDITION, FOR_EACH_CLAUSE, FOR_INIT, FOR_ITERATOR, GE, GT, HEX_DIGIT, IDENT, IMPLEMENTS_CLAUSE, IMPORT, INC, INDEX_OP, INSTANCE_INIT, INTERFACE_DEF, LABELED_STAT, LAND, LBRACK, LCURLY, LE, LITERAL_assert, LITERAL_boolean, LITERAL_break, LITERAL_byte, LITERAL_case, LITERAL_catch, LITERAL_char, LITERAL_class, LITERAL_continue, LITERAL_default, LITERAL_do, LITERAL_double, LITERAL_else, LITERAL_enum, LITERAL_extends, LITERAL_false, LITERAL_finally, LITERAL_float, LITERAL_for, LITERAL_if, LITERAL_implements, LITERAL_import, LITERAL_instanceof, LITERAL_int, LITERAL_interface, LITERAL_long, LITERAL_native, LITERAL_new, LITERAL_null, LITERAL_package, LITERAL_private, LITERAL_protected, LITERAL_public, LITERAL_return, LITERAL_short, LITERAL_static, LITERAL_super, LITERAL_switch, LITERAL_synchronized, LITERAL_this, LITERAL_threadsafe, LITERAL_throw, LITERAL_throws, LITERAL_transient, LITERAL_true, LITERAL_try, LITERAL_void, LITERAL_volatile, LITERAL_while, LNOT, LOR, LPAREN, LT, METHOD_CALL, METHOD_DEF, MINUS, MINUS_ASSIGN, ML_COMMENT, MOD, MOD_ASSIGN, MODIFIERS, NOT_EQUAL, NULL_TREE_LOOKAHEAD, NUM_DOUBLE, NUM_FLOAT, NUM_INT, NUM_LONG, OBJBLOCK, PACKAGE_DEF, PARAMETER_DEF, PARAMETERS, PLUS, PLUS_ASSIGN, POST_DEC, POST_INC, QUESTION, RBRACK, RCURLY, RPAREN, SEMI, SL, SL_ASSIGN, SL_COMMENT, SLIST, SR, SR_ASSIGN, STAR, STAR_ASSIGN, STATIC_IMPORT, STATIC_INIT, STRICTFP, STRING_LITERAL, SUPER_CTOR_CALL, TRIPLE_DOT, TYPE, TYPE_ARGUMENT, TYPE_ARGUMENTS, TYPE_LOWER_BOUNDS, TYPE_PARAMETER, TYPE_PARAMETERS, TYPE_UPPER_BOUNDS, TYPECAST, UNARY_MINUS, UNARY_PLUS, VARIABLE_DEF, VARIABLE_PARAMETER_DEF, VOCAB, WILDCARD_TYPE, WS
 
Constructor Summary
  JavaRecognizer(ParserSharedInputState state)
           
  JavaRecognizer(TokenBuffer tokenBuf)
           
protected JavaRecognizer(TokenBuffer tokenBuf, int k)
           
  JavaRecognizer(TokenStream lexer)
           
protected JavaRecognizer(TokenStream lexer, int k)
           
 
Method Summary
 void aCase()
           
 void additiveExpression()
           
 void andExpression()
           
 void annotation()
           
 void annotationArguments()
           
 void annotationBlock()
           
 void annotationDefinition(AST modifiers)
           
 void annotationField()
           
 void annotationMemberArrayInitializer()
           
 void annotationMemberArrayValueInitializer()
           
 void annotationMemberValueInitializer()
           
 void annotationMemberValuePair()
           
 void annotations()
           
 void anntotationMemberValuePairs()
           
 void argList()
           
 void arrayInitializer()
           
 void assignmentExpression()
           
protected  void buildTokenTypeASTClassMap()
           
 void builtInType()
           
 void builtInTypeArraySpec(boolean addImagNode)
           
 void builtInTypeSpec(boolean addImagNode)
           
 void casesGroup()
           
 void caseSList()
           
 void classBlock()
           
 void classDefinition(AST modifiers)
           
 void classField()
           
 void classOrInterfaceType(boolean addImagNode)
           
 void classTypeSpec(boolean addImagNode)
           
 void compilationUnit()
           
 void compoundStatement()
           
 void conditionalExpression()
           
 void constant()
           
 void constructorBody()
           
 AST create(int type, String txt, Token first, Token last)
          Create an AST node with the token type and text passed in, but with the same background information as another supplied Token (e.g. line numbers) to be used in place of antlr tree construction syntax, i.e.
 void ctorHead()
           
 void declaration()
           
 void declaratorBrackets(AST typ)
           
 void enumBlock()
           
 void enumConstant()
           
 void enumConstantBlock()
           
 void enumConstantField()
           
 void enumDefinition(AST modifiers)
           
 void equalityExpression()
           
 void exclusiveOrExpression()
           
 void explicitConstructorInvocation()
          Catch obvious constructor calls, but not the expr.super(...) calls
 void expression()
           
 void expressionList()
           
 void finallyClause()
           
 void forCond()
           
 void forEachClause()
           
 void forInit()
           
 void forIter()
           
 void forStatement()
           
 JavaLexer getLexer()
           
 void handler()
           
 void identifier()
           
 void identifierStar()
           
 void identPrimary()
          Match a, a.b.c refs, a.b.c(...) refs, a.b.c[], a.b.c[].class, and a.b.c.class refs.
 void implementsClause()
           
 void importDefinition()
           
 void inclusiveOrExpression()
           
 void initializer()
           
 void interfaceBlock()
           
 void interfaceDefinition(AST modifiers)
           
 void interfaceExtends()
           
 void interfaceField()
           
 void logicalAndExpression()
           
 void logicalOrExpression()
           
static JavaRecognizer make(InputBuffer in)
           
static JavaRecognizer make(InputStream in)
           
static JavaRecognizer make(JavaLexer lexer)
          This factory is the correct way to wire together a Groovy parser and lexer.
static JavaRecognizer make(LexerSharedInputState in)
           
static JavaRecognizer make(Reader in)
           
 void modifier()
           
 void modifiers()
           
 void multiplicativeExpression()
           
 void newArrayDeclarator()
           
 void newExpression()
          object instantiation.
 void packageDefinition()
           
 void parameterDeclaration()
           
 void parameterDeclarationList()
           
 void parameterModifier()
           
 void postfixExpression()
           
 void primaryExpression()
           
 void relationalExpression()
           
 void setFilename(String f)
           
 void setSourceBuffer(SourceBuffer sourceBuffer)
           
 void shiftExpression()
           
 void statement()
           
 void superClassClause()
           
 void throwsClause()
           
 void traditionalForClause()
           
 void tryBlock()
           
 void type()
           
 void typeArgument()
           
 void typeArgumentBounds()
           
 void typeArguments()
           
protected  void typeArgumentsOrParametersEnd()
           
 void typeArgumentSpec()
           
 void typeDefinition()
           
protected  void typeDefinitionInternal(AST mods)
           
 void typeParameter()
           
 void typeParameterBounds()
           
 void typeParameters()
           
 void typeSpec(boolean addImagNode)
           
 void unaryExpression()
           
 void unaryExpressionNotPlusMinus()
           
 void variableDeclarator(AST mods, AST t)
          Declaration of a variable.
 void variableDefinitions(AST mods, AST t)
           
 void variableLengthParameterDeclaration()
           
 void varInitializer()
           
 void wildcardType()
           
 
Methods inherited from class antlr.LLkParser
consume, LA, LT, traceIn, traceOut
 
Methods inherited from class antlr.Parser
addMessageListener, addParserListener, addParserMatchListener, addParserTokenListener, addSemanticPredicateListener, addSyntacticPredicateListener, addTraceListener, consumeUntil, consumeUntil, defaultDebuggingSetup, getAST, getASTFactory, getFilename, getInputState, getTokenName, getTokenNames, getTokenTypeToASTClassMap, isDebugMode, mark, match, match, matchNot, panic, recover, removeMessageListener, removeParserListener, removeParserMatchListener, removeParserTokenListener, removeSemanticPredicateListener, removeSyntacticPredicateListener, removeTraceListener, reportError, reportError, reportWarning, rewind, setASTFactory, setASTNodeClass, setASTNodeType, setDebugMode, setIgnoreInvalidDebugCalls, setInputState, setTokenBuffer, traceIndent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

_tokenNames

public static final String[] _tokenNames

_tokenSet_0

public static final BitSet _tokenSet_0

_tokenSet_1

public static final BitSet _tokenSet_1

_tokenSet_2

public static final BitSet _tokenSet_2

_tokenSet_3

public static final BitSet _tokenSet_3

_tokenSet_4

public static final BitSet _tokenSet_4

_tokenSet_5

public static final BitSet _tokenSet_5

_tokenSet_6

public static final BitSet _tokenSet_6

_tokenSet_7

public static final BitSet _tokenSet_7

_tokenSet_8

public static final BitSet _tokenSet_8

_tokenSet_9

public static final BitSet _tokenSet_9

_tokenSet_10

public static final BitSet _tokenSet_10

_tokenSet_11

public static final BitSet _tokenSet_11

_tokenSet_12

public static final BitSet _tokenSet_12

_tokenSet_13

public static final BitSet _tokenSet_13

_tokenSet_14

public static final BitSet _tokenSet_14

_tokenSet_15

public static final BitSet _tokenSet_15

_tokenSet_16

public static final BitSet _tokenSet_16

_tokenSet_17

public static final BitSet _tokenSet_17

_tokenSet_18

public static final BitSet _tokenSet_18

_tokenSet_19

public static final BitSet _tokenSet_19

_tokenSet_20

public static final BitSet _tokenSet_20

_tokenSet_21

public static final BitSet _tokenSet_21

_tokenSet_22

public static final BitSet _tokenSet_22

_tokenSet_23

public static final BitSet _tokenSet_23

_tokenSet_24

public static final BitSet _tokenSet_24

_tokenSet_25

public static final BitSet _tokenSet_25

_tokenSet_26

public static final BitSet _tokenSet_26

_tokenSet_27

public static final BitSet _tokenSet_27

_tokenSet_28

public static final BitSet _tokenSet_28

_tokenSet_29

public static final BitSet _tokenSet_29

_tokenSet_30

public static final BitSet _tokenSet_30

_tokenSet_31

public static final BitSet _tokenSet_31

_tokenSet_32

public static final BitSet _tokenSet_32

_tokenSet_33

public static final BitSet _tokenSet_33

_tokenSet_34

public static final BitSet _tokenSet_34

_tokenSet_35

public static final BitSet _tokenSet_35

_tokenSet_36

public static final