de.hunsicker.jalopy.language
Class JavaParser

java.lang.Object
  |
  +--antlr.Parser
        |
        +--antlr.LLkParser
              |
              +--de.hunsicker.jalopy.language.antlr.InternalJavaParser
                    |
                    +--de.hunsicker.jalopy.language.JavaParser
All Implemented Interfaces:
de.hunsicker.jalopy.language.antlr.JavaTokenTypes, Parser

public class JavaParser
extends de.hunsicker.jalopy.language.antlr.InternalJavaParser
implements Parser

Java 1.5 Recognizer Run 'java Main [-showtree] directory-full-of-java-files' [The -showtree option pops up a Swing frame that shows the JavaNode constructed from the parser.] Run 'java Main ' Contributing authors: 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 This grammar is in the PUBLIC DOMAIN


Field Summary
static int JDK_1_3
          Indicates JDK version 1.3.
static int JDK_1_4
          Indicates JDK version 1.4.
static int JDK_1_5
          Indicates JDK version 1.5.
 
Fields inherited from class de.hunsicker.jalopy.language.antlr.InternalJavaParser
_tokenNames, _tokenSet_0, _tokenSet_1, _tokenSet_10, _tokenSet_11, _tokenSet_12, _tokenSet_13, _tokenSet_14, _tokenSet_15, _tokenSet_16, _tokenSet_17, _tokenSet_18, _tokenSet_19, _tokenSet_2, _tokenSet_20, _tokenSet_21, _tokenSet_22, _tokenSet_23, _tokenSet_24, _tokenSet_25, _tokenSet_26, _tokenSet_27, _tokenSet_28, _tokenSet_29, _tokenSet_3, _tokenSet_30, _tokenSet_31, _tokenSet_32, _tokenSet_33, _tokenSet_34, _tokenSet_35, _tokenSet_36, _tokenSet_37, _tokenSet_38, _tokenSet_39, _tokenSet_4, _tokenSet_40, _tokenSet_41, _tokenSet_42, _tokenSet_43, _tokenSet_44, _tokenSet_45, _tokenSet_46, _tokenSet_47, _tokenSet_48, _tokenSet_49, _tokenSet_5, _tokenSet_50, _tokenSet_51, _tokenSet_52, _tokenSet_6, _tokenSet_7, _tokenSet_8, _tokenSet_9
 
Fields inherited from class antlr.Parser
astFactory, inputState, returnAST, tokenNames, tokenTypeToASTClassMap, traceDepth
 
Fields inherited from interface de.hunsicker.jalopy.language.antlr.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, BOF, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, CASE_GROUP, CASESLIST, CHAR_LITERAL, CLASS_DEF, COLON, COMMA, COMMENT, CTOR_CALL, CTOR_DEF, 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, JAVADOC_COMMENT, 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, ROOT, RPAREN, SEMI, SEPARATOR_COMMENT, SL, SL_ASSIGN, SL_COMMENT, SLIST, SPECIAL_COMMENT, SR, SR_ASSIGN, STAR, STAR_ASSIGN, STATIC_IMPORT, STATIC_INIT, STRICTFP, STRING_LITERAL, SUPER_CTOR_CALL, SYNBLOCK, 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
  JavaParser(antlr.ParserSharedInputState state)
           
  JavaParser(antlr.TokenBuffer tokenBuf)
           
protected JavaParser(antlr.TokenBuffer tokenBuf, int k)
           
  JavaParser(antlr.TokenStream lexer)
           
protected JavaParser(antlr.TokenStream lexer, int k)
           
 
Method Summary
protected  void attachStuff(JavaNode[] nodes)
          Attaches the items to the correct nodes
 java.lang.String getPackageName()
          Returns the package name of the parsed source file.
 antlr.collections.AST getParseTree()
          Returns the root node of the generated parse tree.
 java.util.List getQualifiedIdents()
          Returns all qualified Java identifiers referenced in the file.
 java.util.List getUnqualifiedIdents()
          Returns all unqualified Java identifiers referenced in the file.
 boolean isStripQualifation()
          Indicates whether the qualification stripping is enabled.
 void reportError(antlr.RecognitionException ex)
          Reports the given error.
 void reportError(java.lang.String message)
          Reports the given error.
 void reportWarning(java.lang.String message)
          Reports the given warning.
 void reset()
          Resets the parser state.
 void setStripQualification(boolean strip)
          Sets whether qualification of qualified identifiers should be stripped.
 
Methods inherited from class de.hunsicker.jalopy.language.antlr.InternalJavaParser
aCase, additiveExpression, andExpression, annotation, annotationArguments, annotationBlock, annotationDefinition, annotationField, annotationMemberArrayInitializer, annotationMemberArrayValueInitializer, annotationMemberValueInitializer, annotationMemberValuePair, annotations, anntotationMemberValuePairs, argList, arrayInitializer, assignmentExpression, buildTokenTypeASTClassMap, builtInType, builtInTypeArraySpec, builtInTypeSpec, casesGroup, caseSList, classBlock, classDefinition, classField, classOrInterfaceType, classTypeSpec, compoundStatement, conditionalExpression, constant, constructorBody, ctorHead, declaration, declaratorBrackets, enumBlock, enumConstant, enumConstantBlock, enumConstantField, enumDefinition, equalityExpression, exclusiveOrExpression, explicitConstructorInvocation, expression, expressionList, finallyClause, forCond, forEachClause, forInit, forIter, forStatement, handler, identifier, identifierStar, identPrimary, implementsClause, importDefinition, inclusiveOrExpression, initializer, interfaceBlock, interfaceDefinition, interfaceExtends, interfaceField, logicalAndExpression, logicalOrExpression, modifier, modifiers, multiplicativeExpression, newArrayDeclarator, newExpression, packageDefinition, parameterDeclaration, parameterDeclarationList, parameterModifier, parse, postfixExpression, primaryExpression, relationalExpression, shiftExpression, statement, superClassClause, throwsClause, traditionalForClause, tryBlock, type, typeArgument, typeArgumentBounds, typeArguments, typeArgumentsOrParametersEnd, typeArgumentSpec, typeDefinition, typeDefinitionInternal, typeParameter, typeParameterBounds, typeParameters, typeSpec, typeVariableDefinitions, unaryExpression, unaryExpressionNotPlusMinus, variableDeclarator, variableDefinitions, variableLengthParameterDeclaration, varInitializer, 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, rewind, setASTFactory, setASTNodeClass, setASTNodeType, setDebugMode, setFilename, setIgnoreInvalidDebugCalls, setInputState, setTokenBuffer, traceIndent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface de.hunsicker.jalopy.language.Parser
getASTFactory, getFilename, getTokenNames, parse, setASTFactory, setFilename, setTokenBuffer
 

Field Detail

JDK_1_3

public static final int JDK_1_3
Indicates JDK version 1.3.

See Also:
Constant Field Values

JDK_1_4

public static final int JDK_1_4
Indicates JDK version 1.4.

See Also:
Constant Field Values

JDK_1_5

public static final int JDK_1_5
Indicates JDK version 1.5.

See Also:
Constant Field Values
Constructor Detail

JavaParser

protected JavaParser(antlr.TokenBuffer tokenBuf,
                     int k)

JavaParser

public JavaParser(antlr.TokenBuffer tokenBuf)

JavaParser

protected JavaParser(antlr.TokenStream lexer,
                     int k)

JavaParser

public JavaParser(antlr.TokenStream lexer)

JavaParser

public JavaParser(antlr.ParserSharedInputState state)
Method Detail

setStripQualification

public void setStripQualification(boolean strip)
Sets whether qualification of qualified identifiers should be stripped. (not implemented yet)

Parameters:
strip - if true qualification will be stripped.

isStripQualifation

public boolean isStripQualifation()
Indicates whether the qualification stripping is enabled.

Returns:
true if the qualification stripping is enabled.

getParseTree

public antlr.collections.AST getParseTree()
Returns the root node of the generated parse tree.

Specified by:
getParseTree in interface Parser
Returns:
root node of the generated parse tree.

reportError

public void reportError(antlr.RecognitionException ex)
Reports the given error.

Overrides:
reportError in class antlr.Parser
Parameters:
ex - encountered exception.

reportError

public void reportError(java.lang.String message)
Reports the given error.

Overrides:
reportError in class antlr.Parser
Parameters:
message - error message.

reportWarning

public void reportWarning(java.lang.String message)
Reports the given warning.

Overrides:
reportWarning in class antlr.Parser
Parameters:
message - warning message.

getPackageName

public java.lang.String getPackageName()
Returns the package name of the parsed source file.

Returns:
the package name of the parsed source file. Returns the empty String if the source file contains no package information.

getUnqualifiedIdents

public java.util.List getUnqualifiedIdents()
Returns all unqualified Java identifiers referenced in the file.

Returns:
unqualified identifiers. Returns an empty array if no unqualified identifiers could be found.

getQualifiedIdents

public java.util.List getQualifiedIdents()
Returns all qualified Java identifiers referenced in the file.

Returns:
qualified identifiers. Returns an empty array if no qualified identifiers could be found.

reset

public void reset()
Resets the parser state.

Specified by:
reset in interface Parser

attachStuff

protected void attachStuff(JavaNode[] nodes)
Attaches the items to the correct nodes

Specified by:
attachStuff in class de.hunsicker.jalopy.language.antlr.InternalJavaParser
Parameters:
nodes -


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