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QueenParser.g4
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QueenParser.g4
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//A Queen grammar for ANTLR 4 based on the Java 8 ANTLR Grammar.
//We start from Java 8 and take out/modify stuff that we do not like!
//
// TERMINOLOGY
//
// unann -> unannotated
// lf -> looking for
// dim -> dimension (array dimension square brackets)
parser grammar QueenParser;
options {
tokenVocab=QueenLexer;
}
/*
* Productions from §3 (Lexical Structure)
*/
literal
: IntegerLiteral
| FloatingPointLiteral
| BooleanLiteral
| CharacterLiteral
| StringLiteral
| NullLiteral
;
/*
* Productions from §4 (Types, Values, and Variables)
*/
primitiveType
: annotation* numericType
| annotation* BOOLEAN
;
numericType
: integralType
| floatingPointType
;
integralType
: BYTE
| SHORT
| INT
| LONG
| CHAR
;
floatingPointType
: FLOAT
| DOUBLE
;
referenceType
: classOrInterfaceType
| typeVariable
| arrayType
;
classOrInterfaceType
: ( classType_lfno_classOrInterfaceType
| interfaceType_lfno_classOrInterfaceType
)
( classType_lf_classOrInterfaceType
| interfaceType_lf_classOrInterfaceType
)*
;
classType
: annotation* Identifier typeArguments?
| classOrInterfaceType '.' annotation* Identifier typeArguments?
;
classType_lf_classOrInterfaceType
: '.' annotation* Identifier typeArguments?
;
classType_lfno_classOrInterfaceType
: annotation* Identifier typeArguments?
;
interfaceType
: classType
;
interfaceType_lf_classOrInterfaceType
: classType_lf_classOrInterfaceType
;
interfaceType_lfno_classOrInterfaceType
: classType_lfno_classOrInterfaceType
;
typeVariable
: annotation* Identifier
;
arrayType
: primitiveType dims
| classOrInterfaceType dims
| typeVariable dims
;
dims
: dim (dim)*
;
dim
: annotation* '[' ']'
;
unannDim
: '[' ']'
;
typeParameter
: annotation* Identifier typeBound?
;
typeBound
: EXTENDS typeVariable
| EXTENDS classOrInterfaceType additionalBound*
;
additionalBound
: '&' interfaceType
;
typeArguments
: '<' typeArgumentList '>'
;
typeArgumentList
: typeArgument (',' typeArgument)*
;
typeArgument
: referenceType
| wildcard
;
wildcard
: annotation* '?' wildcardBounds?
;
wildcardBounds
: EXTENDS referenceType
| SUPER referenceType
;
/*
* Productions from §6 (Names)
*/
packageName
: Identifier
| packageName '.' Identifier
;
typeName
: Identifier
| packageOrTypeName '.' Identifier
;
packageOrTypeName
: Identifier
| packageOrTypeName '.' Identifier
;
expressionName
: Identifier
| ambiguousName '.' Identifier
;
methodName
: Identifier
;
ambiguousName
: Identifier
| ambiguousName '.' Identifier
;
/*
* Productions from §7 (Packages)
*/
compilationUnit
: packageDeclaration? importDeclaration* typeDeclaration EOF
;
packageDeclaration
: packageModifier* PACKAGE packageName ';'
;
packageModifier
: annotation
;
importDeclaration
: singleTypeImportDeclaration
| typeImportOnDemandDeclaration
;
singleTypeImportDeclaration
: IMPORT typeName ';'
;
typeImportOnDemandDeclaration
: IMPORT packageOrTypeName '.' '*' ';'
;
typeDeclaration
: classDeclaration
| interfaceDeclaration
| ';'
;
/*
* Productions from §8 (Classes)
*/
classDeclaration
: annotation* classModifier* classAbstractOrFinal? IMPLEMENTATION Identifier typeParameters? superclass? superinterfaces? classBody
;
classModifier
: PUBLIC
| PROTECTED
| PRIVATE
| STATIC
| STRICTFP
;
classAbstractOrFinal
: ABSTRACT
| FINAL
;
typeParameters
: '<' typeParameterList '>'
;
typeParameterList
: typeParameter (',' typeParameter)*
;
superclass
: EXTENDS classType
;
superinterfaces
: OF interfaceTypeList
;
interfaceTypeList
: interfaceType (',' interfaceType)*
;
classBody
: '{' classBodyDeclaration* '}'
;
classBodyDeclaration
: classMemberDeclaration
| instanceInitializer
| staticInitializer
| constructorDeclaration
;
classMemberDeclaration
: fieldDeclaration
| methodDeclaration
| classDeclaration
| interfaceDeclaration
| ';'
;
fieldDeclaration
: annotation* fieldModifier* unannType variableDeclarator ';'
;
fieldModifier
: PROTECTED
| PUBLIC
| PRIVATE
| STATIC
| MUTABLE
| FINAL
| TRANSIENT
| VOLATILE
;
variableDeclaratorList
: variableDeclarator (',' variableDeclarator)*
;
variableDeclarator
: variableDeclaratorId ('=' variableInitializer)?
;
variableDeclaratorId
: Identifier
;
variableInitializer
: expression
| arrayInitializer
;
unannType
: unannPrimitiveType
| unannReferenceType
;
unannPrimitiveType
: numericType
| BOOLEAN
;
unannReferenceType
: unannClassOrInterfaceType
| unannTypeVariable
| unannArrayType
;
unannClassOrInterfaceType
: ( unannClassType_lfno_unannClassOrInterfaceType
| unannInterfaceType_lfno_unannClassOrInterfaceType
)
( unannClassType_lf_unannClassOrInterfaceType
| unannInterfaceType_lf_unannClassOrInterfaceType
)*
;
unannClassType
: Identifier typeArguments?
| unannClassOrInterfaceType '.' annotation* Identifier typeArguments?
;
unannClassType_lf_unannClassOrInterfaceType
: '.' annotation* Identifier typeArguments?
;
unannClassType_lfno_unannClassOrInterfaceType
: Identifier typeArguments?
;
unannInterfaceType
: unannClassType
;
unannInterfaceType_lf_unannClassOrInterfaceType
: unannClassType_lf_unannClassOrInterfaceType
;
unannInterfaceType_lfno_unannClassOrInterfaceType
: unannClassType_lfno_unannClassOrInterfaceType
;
unannTypeVariable
: Identifier
;
unannArrayType
: unannPrimitiveType dims
| unannClassOrInterfaceType dims
| unannTypeVariable dims
;
methodDeclaration
: annotation* methodModifier* methodHeader methodBody
;
methodModifier
: PUBLIC
| PROTECTED
| PRIVATE
| ABSTRACT
| STATIC
| FINAL
| SYNCHRONIZED
| NATIVE
| STRICTFP
;
methodHeader
: result methodDeclarator throws_?
| typeParameters annotation* result methodDeclarator throws_?
;
result
: unannType
| VOID
;
methodDeclarator
: Identifier '(' formalParameterList? ')'
;
formalParameterList
: formalParameters ',' lastFormalParameter
| lastFormalParameter
;
formalParameters
: formalParameter (',' formalParameter)*
;
formalParameter
: formalParameterModifier* unannType variableDeclaratorId
;
variableModifier
: annotation
| FINAL
;
formalParameterModifier
: annotation
| MUTABLE
| FINAL
;
lastFormalParameter
: formalParameterModifier* unannType annotation* '...' variableDeclaratorId
| formalParameter
;
throws_
: THROWS exceptionTypeList
;
exceptionTypeList
: exceptionType (',' exceptionType)*
;
exceptionType
: classType
| typeVariable
;
methodBody
: block
| ';'
;
instanceInitializer
: block
;
staticInitializer
: STATIC block
;
constructorDeclaration
: annotation* constructorModifier? constructorDeclarator throws_? constructorBody
;
constructorModifier
: PUBLIC
| PROTECTED
| PRIVATE
;
constructorDeclarator
: typeParameters? simpleTypeName '(' formalParameterList? ')'
;
simpleTypeName
: Identifier
;
constructorBody
: '{' explicitConstructorInvocation? blockStatements? '}'
;
explicitConstructorInvocation
: typeArguments? THIS '(' argumentList? ')' ';'
| typeArguments? SUPER '(' argumentList? ')' ';'
| expressionName '.' typeArguments? SUPER '(' argumentList? ')' ';'
| primary '.' typeArguments? SUPER '(' argumentList? ')' ';'
;
/*
* Productions from §9 (Interfaces)
*/
interfaceDeclaration
: normalInterfaceDeclaration
| annotationTypeDeclaration
;
normalInterfaceDeclaration
: annotation* interfaceModifier* INTERFACE Identifier typeParameters? extendsInterfaces? interfaceBody
;
interfaceModifier
: PUBLIC
| PROTECTED
| PRIVATE
| ABSTRACT
| STATIC
| STRICTFP
;
extendsInterfaces
: EXTENDS interfaceTypeList
;
interfaceBody
: '{' interfaceMemberDeclaration* '}'
;
interfaceMemberDeclaration
: constantDeclaration
| interfaceMethodDeclaration
| classDeclaration
| interfaceDeclaration
| ';'
;
constantDeclaration
: annotation* constantModifier* unannType variableDeclarator ';'
;
constantModifier
: PUBLIC
| STATIC
;
interfaceMethodDeclaration
: annotation* interfaceMethodModifier* methodHeader methodBody
;
interfaceMethodModifier
: PUBLIC
| ABSTRACT
| DEFAULT
| STATIC
| STRICTFP
;
annotationTypeDeclaration
: annotation* interfaceModifier* '@' INTERFACE Identifier annotationTypeBody
;
annotationTypeBody
: '{' annotationTypeMemberDeclaration* '}'
;
annotationTypeMemberDeclaration
: annotationTypeElementDeclaration
| classDeclaration
| interfaceDeclaration
| ';'
;
annotationTypeElementDeclaration
: annotation* annotationTypeElementModifier* unannType Identifier '(' ')' defaultValue? ';'
;
annotationTypeElementModifier
: PUBLIC
| ABSTRACT
;
defaultValue
: DEFAULT elementValue
;
annotation
: normalAnnotation
| markerAnnotation
| singleElementAnnotation
;
normalAnnotation
: '@' typeName '(' elementValuePairList? ')'
;
elementValuePairList
: elementValuePair (',' elementValuePair)*
;
elementValuePair
: Identifier '=' elementValue
;
elementValue
: conditionalExpression
| elementValueArrayInitializer
| annotation
;
elementValueArrayInitializer
: '{' elementValueList? ','? '}'
;
elementValueList
: elementValue (',' elementValue)*
;
markerAnnotation
: '@' typeName
;
singleElementAnnotation
: '@' typeName '(' elementValue ')'
;
/*
* Productions from §10 (Arrays)
*/
arrayInitializer
: '{' variableInitializerList? ','? '}'
;
variableInitializerList
: variableInitializer (',' variableInitializer)*
;
/*
* Productions from §14 (Blocks and Statements)
*/
block
: '{' blockStatements? '}'
;
blockStatements
: blockStatement+
;
blockStatement
: localVariableDeclarationStatement
| classDeclaration
| statement
;
localVariableDeclarationStatement
: localVariableDeclaration ';'
;
localVariableDeclaration
: variableModifier* unannType variableDeclarator
;
forInitlocalVariableDeclaration
: variableModifier* unannType variableDeclaratorList
;
statement
: statementWithoutTrailingSubstatement
| labeledStatement
| ifThenStatement
| ifThenElseStatement
| whileStatement
| forStatement
;
statementNoShortIf
: statementWithoutTrailingSubstatement
| labeledStatementNoShortIf
| ifThenElseStatementNoShortIf
| whileStatementNoShortIf
| forStatementNoShortIf
;
statementWithoutTrailingSubstatement
: block
| emptyStatement
| expressionStatement
| assertStatement
| switchStatement
| doStatement
| breakStatement
| continueStatement
| returnStatement
| synchronizedStatement
| throwStatement
| tryStatement
;
emptyStatement
: ';'
;
labeledStatement
: Identifier ':' statement
;
labeledStatementNoShortIf
: Identifier ':' statementNoShortIf
;
expressionStatement
: statementExpression ';'
;
statementExpression
: assignment
| preIncrementExpression
| preDecrementExpression
| postIncrementExpression
| postDecrementExpression
| methodInvocation
| classInstanceCreationExpression
;
ifThenStatement
: IF '(' expression ')' statement
;
ifThenElseStatement
: IF '(' expression ')' statementNoShortIf 'else' statement
;
ifThenElseStatementNoShortIf
: IF '(' expression ')' statementNoShortIf 'else' statementNoShortIf
;
assertStatement
: ASSERT expression ';'
| ASSERT expression ':' expression ';'
;
switchStatement
: SWITCH '(' expression ')' switchBlock
;
switchBlock
: '{' switchBlockStatementGroup* switchLabel* '}'
;
switchBlockStatementGroup
: switchLabels blockStatements
;
switchLabels
: switchLabel switchLabel*
;
switchLabel
: CASE constantExpression ':'
| DEFAULT ':'
;
whileStatement
: WHILE '(' expression ')' statement
;
whileStatementNoShortIf
: WHILE '(' expression ')' statementNoShortIf
;
doStatement
: DO statement WHILE '(' expression ')' ';'
;
forStatement
: basicForStatement
| enhancedForStatement
;
forStatementNoShortIf
: basicForStatementNoShortIf
| enhancedForStatementNoShortIf
;
basicForStatement
: FOR '(' forInit? ';' expression? ';' forUpdate? ')' statement
;
basicForStatementNoShortIf
: FOR '(' forInit? ';' expression? ';' forUpdate? ')' statementNoShortIf
;
forInit
: statementExpressionList
| forInitlocalVariableDeclaration
;
forUpdate
: statementExpressionList
;
statementExpressionList
: statementExpression (',' statementExpression)*
;
enhancedForStatement
: FOR '(' variableModifier* unannType variableDeclaratorId ':' expression ')' statement
;
enhancedForStatementNoShortIf
: FOR '(' variableModifier* unannType variableDeclaratorId ':' expression ')' statementNoShortIf
;
breakStatement
: BREAK Identifier? ';'
;
continueStatement
: CONTINUE Identifier? ';'
;
returnStatement
: RETURN expression? ';'
;
throwStatement
: THROW expression ';'
;
synchronizedStatement
: SYNCHRONIZED '(' expression ')' block
;
tryStatement
: TRY block catches
| TRY block catches? finally_
| tryWithResourcesStatement
;
catches
: catchClause catchClause*
;
catchClause
: CATCH '(' catchFormalParameter ')' block
;
catchFormalParameter
: variableModifier* catchType variableDeclaratorId
;
catchType
: unannClassType ('|' unannClassType)*
;
finally_
: FINALLY block
;
tryWithResourcesStatement
: TRY resourceSpecification block catches? finally_?
;
resourceSpecification
: '(' resourceList ';'? ')'
;
resourceList
: resource (';' resource)*
;
resource
: variableModifier* unannType variableDeclaratorId '=' expression
;
/*
* Productions from §15 (Expressions)
*/
primary
: ( primaryNoNewArray_lfno_primary
| arrayCreationExpression
)
( primaryNoNewArray_lf_primary
)*
;
primaryNoNewArray
: literal
| typeName (unannDim)* '.' IMPLEMENTATION
| VOID '.' IMPLEMENTATION
| THIS
| typeName '.' THIS
| '(' expression ')'
| classInstanceCreationExpression
| fieldAccess
| arrayAccess
| methodInvocation
| methodReference
;
primaryNoNewArray_lf_arrayAccess
:
;
primaryNoNewArray_lfno_arrayAccess
: literal
| typeName (unannDim)* '.' IMPLEMENTATION
| VOID '.' IMPLEMENTATION
| THIS
| typeName '.' THIS
| '(' expression ')'
| classInstanceCreationExpression
| fieldAccess
| methodInvocation
| methodReference
;
primaryNoNewArray_lf_primary
: classInstanceCreationExpression_lf_primary
| fieldAccess_lf_primary
| arrayAccess_lf_primary
| methodInvocation_lf_primary
| methodReference_lf_primary
;
primaryNoNewArray_lf_primary_lf_arrayAccess_lf_primary
:
;
primaryNoNewArray_lf_primary_lfno_arrayAccess_lf_primary
: classInstanceCreationExpression_lf_primary
| fieldAccess_lf_primary
| methodInvocation_lf_primary
| methodReference_lf_primary
;
primaryNoNewArray_lfno_primary
: literal
| typeName (unannDim)* '.' IMPLEMENTATION
| unannPrimitiveType (unannDim)* '.' IMPLEMENTATION
| VOID '.' IMPLEMENTATION
| THIS
| typeName '.' THIS
| '(' expression ')'
| classInstanceCreationExpression_lfno_primary
| fieldAccess_lfno_primary
| arrayAccess_lfno_primary
| methodInvocation_lfno_primary
| methodReference_lfno_primary
;
primaryNoNewArray_lfno_primary_lf_arrayAccess_lfno_primary
:
;
primaryNoNewArray_lfno_primary_lfno_arrayAccess_lfno_primary
: literal
| typeName (unannDim)* '.' IMPLEMENTATION
| unannPrimitiveType (unannDim)* '.' IMPLEMENTATION
| VOID '.' IMPLEMENTATION
| THIS
| typeName '.' THIS
| '(' expression ')'
| classInstanceCreationExpression_lfno_primary
| fieldAccess_lfno_primary
| methodInvocation_lfno_primary
| methodReference_lfno_primary
;
classInstanceCreationExpression
: NEW typeArguments? constructorIdentifier ('.' constructorIdentifier)* typeArgumentsOrDiamond? '(' argumentList? ')' classBody?
| expressionName '.' NEW typeArguments? constructorIdentifier typeArgumentsOrDiamond? '(' argumentList? ')' classBody?
| primary '.' NEW typeArguments? constructorIdentifier typeArgumentsOrDiamond? '(' argumentList? ')' classBody?
;
classInstanceCreationExpression_lf_primary
: '.' NEW typeArguments? constructorIdentifier typeArgumentsOrDiamond? '(' argumentList? ')' classBody?
;
classInstanceCreationExpression_lfno_primary
: NEW typeArguments? constructorIdentifier ('.' constructorIdentifier)* typeArgumentsOrDiamond? '(' argumentList? ')' classBody?
| expressionName '.' NEW typeArguments? constructorIdentifier typeArgumentsOrDiamond? '(' argumentList? ')' classBody?
;
constructorIdentifier
: annotation* Identifier
;
typeArgumentsOrDiamond
: typeArguments
| '<' '>'
;
fieldAccess
: primary '.' Identifier
| SUPER '.' Identifier
| typeName '.' SUPER '.' Identifier
;
fieldAccess_lf_primary
: '.' Identifier
;
fieldAccess_lfno_primary
: SUPER '.' Identifier
| typeName '.' SUPER '.' Identifier
;
arrayAccess
: ( expressionName '[' expression ']'
| primaryNoNewArray_lfno_arrayAccess '[' expression ']'
)