update fix few bugs
This commit is contained in:
Mann Patel
281
ExprParser.g4
Normal file
281
ExprParser.g4
Normal file
@@ -0,0 +1,281 @@
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parser grammar ExprParser;
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options {
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tokenVocab=ExprLexer;
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}
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identifier: IDENTIFIER;
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qualifiedIdentifier: identifier (Dot identifier)*;
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literal: IntegerLiteral
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| FloatingPointLiteral
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| CharacterLiteral
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| StringLiteral
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| BooleanLiteral
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| NullLiteral;
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expression
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: expression1 (assignmentOperator expression1)?
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;
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assignmentOperator: Assignment
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| AddAssign
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| SubtractAssign
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| MultiplyAssign
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| DivideAssign
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| BitwiseANDAssign
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| BitwiseORAssign
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| BitwiseXORAssign
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| RemainderAssign
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| LeftShiftAssign
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| SignedRightShiftAssign
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| UnsignedRightShiftAssign;
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type: identifier (Dot identifier)* bracketsOpt
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| basicType bracketsOpt;
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statementExpression: expression;
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constantExpression: expression;
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expression1: expression2 (Question expression Colon expression1)?;
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expression2: expression3 (expression2Rest)?;
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expression2Rest: (infixop expression3)+
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| InstanceOf type;
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infixop: ConditionalOR
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| ConditionalAND
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| BitwiseOR
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| BitwiseXOR
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| BitwiseAND
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| EqualTo
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| NotEqualTo
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| LessThan
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| GreaterThan
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| LessThanEqualTo
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| GreaterThanEqualTo
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| LeftShift
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| SignedRightShift
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| UnsignedRightShift
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| Addition
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| Subtraction
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| Multiplication
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| Division
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| Remainder;
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expression3: prefixOp expression3
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| ParenthesesLeft type ParenthesesRight expression3
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| primary postfixExpression*;
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postfixExpression: selector | postfixOp;
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primary: ParenthesesLeft expression ParenthesesRight
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| This (arguments)?
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| Super superSuffix
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| literal
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| New creator
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| identifier (Dot identifier)* (identifierSuffix)?
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| basicType bracketsOpt Dot Class
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| Void Dot Class;
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identifierSuffix: SquareBracketLeft SquareBracketRight bracketsOpt Dot Class //Case []...'.'class
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|SquareBracketLeft expression SquareBracketRight //arr[5]
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|arguments
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|Dot (Class | This | Super arguments | New innerCreator);
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prefixOp: Increment
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| Decrement
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| LogicalComplement
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| BitwiseComplement
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| Addition
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| Subtraction;
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postfixOp: Increment | Decrement;
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selector: Dot identifier (arguments)?
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| Dot This
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| Dot Super superSuffix
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| Dot New innerCreator
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| SquareBracketLeft expression SquareBracketRight;
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superSuffix: arguments
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| Dot identifier (arguments)?;
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//primitives
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basicType: Byte
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| Short
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| Char
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| Int
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| Long
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| Float
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| Double
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| Boolean;
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argumentsOpt: (arguments)?;
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arguments: ParenthesesLeft (expression (Comma expression)*)? ParenthesesRight;
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bracketsOpt: (SquareBracketLeft SquareBracketRight)*;
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creator: qualifiedIdentifier ( arrayCreatorRest | classCreatorRest);
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innerCreator: identifier classCreatorRest;
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arrayCreatorRest: SquareBracketLeft SquareBracketRight bracketsOpt arrayInitializer
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| SquareBracketLeft expression SquareBracketRight (SquareBracketLeft expression SquareBracketRight)* bracketsOpt;
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classCreatorRest: arguments (classBody)?;
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arrayInitializer: CurlyBracketLeft (variableInitializer(Comma variableInitializer)*(Comma)?)? CurlyBracketRight;
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variableInitializer: arrayInitializer
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|expression;
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parExpression: ParenthesesLeft expression ParenthesesRight;
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block: CurlyBracketLeft blockStatements CurlyBracketRight;
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blockStatements: (blockStatement)*;
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blockStatement: localVariableDeclarationStatement
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|classOrInterfaceDeclaration
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|labeledStatement
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|statement;
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labeledStatement: identifier Colon statement;
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localVariableDeclarationStatement: (Final)? type variableDeclarators Semicolon;
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statement: block
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| If parExpression statement (Else statement)?
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| For ParenthesesLeft forInit? Semicolon (expression)? Semicolon forUpdate? ParenthesesRight statement
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| While parExpression statement
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| Do statement While parExpression Semicolon
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| Try block catches
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| Try block Finally block
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| Try block catches Finally block
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| switchStatement
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| Synchronized parExpression block
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| Return (expression)? Semicolon
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| Throw expression Semicolon
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| Break (identifier)? Semicolon
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| Continue (identifier)? Semicolon
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| statementExpression Semicolon
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| Semicolon;
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catches: catchClause+;
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catchClause: Catch ParenthesesLeft formalParameter ParenthesesRight block;
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switchStatement: Switch parExpression CurlyBracketLeft CurlyBracketRight
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| Switch parExpression CurlyBracketLeft switchBlockStatementGroups CurlyBracketRight;
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switchBlockStatementGroups: switchBlockStatementGroup+;
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switchBlockStatementGroup: switchLabel blockStatements;
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switchLabel: Case constantExpression Colon
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| Default Colon;
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moreStatementExpressions: (Comma statementExpression)*;
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forInit: statementExpression moreStatementExpressions
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| (Final)? type variableDeclarators;
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forUpdate: statementExpression moreStatementExpressions;
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modifiersOpt: (modifier)*;
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modifier: Public
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| Protected
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| Private
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| Static
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| Abstract
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| Final
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| Native
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| Synchronized
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| Transient
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| Volatile
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| Strictfp;
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variableDeclarators: variableDeclarator (Comma variableDeclarator)*;
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variableDeclaratorsRest: variableDeclaratorRest (Comma variableDeclarator)*;
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constantDeclaratorsRest: constantDeclaratorRest (Comma constantDeclarator)*;
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variableDeclarator: identifier variableDeclaratorRest;
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constantDeclarator: identifier constantDeclaratorRest;
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variableDeclaratorRest: bracketsOpt (Assignment variableInitializer)?;
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constantDeclaratorRest: bracketsOpt Assignment variableInitializer;
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variableDeclaratorId: identifier bracketsOpt;
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compilationUnit: (Package qualifiedIdentifier Semicolon)? (importDeclaration)* (typeDeclaration)*;
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importDeclaration: Import identifier (Dot identifier)* (Dot Multiplication)? Semicolon;
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typeDeclaration: classOrInterfaceDeclaration
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| Semicolon;
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classOrInterfaceDeclaration: modifiersOpt (classDeclaration | interfaceDeclaration);
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classDeclaration: Class identifier (Extends type)? (Implements typeList)? classBody;
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interfaceDeclaration: Interface identifier (Extends typeList)? interfaceBody;
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typeList: type (Comma type)*;
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classBody: CurlyBracketLeft (classBodyDeclaration)* CurlyBracketRight;
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interfaceBody: CurlyBracketLeft (interfaceBodyDeclaration)* CurlyBracketRight;
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classBodyDeclaration: Semicolon
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| (Static)? block
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| modifiersOpt memberDecl;
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memberDecl: methodOrFieldDecl
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| Void identifier methodDeclaratorRest
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| identifier constructorDeclaratorRest
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| classOrInterfaceDeclaration;
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methodOrFieldDecl: type identifier methodOrFieldRest;
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methodOrFieldRest: variableDeclaratorRest Semicolon
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|methodDeclaratorRest;
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interfaceBodyDeclaration: Semicolon
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| modifiersOpt interfaceMemberDecl;
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interfaceMemberDecl: interfaceMethodOrFieldDecl
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| Void identifier voidInterfaceMethodDeclaratorRest
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| classOrInterfaceDeclaration;
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interfaceMethodOrFieldDecl: type identifier interfaceMethodOrFieldRest;
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interfaceMethodOrFieldRest: constantDeclaratorRest Semicolon
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| interfaceMethodDeclaratorRest;
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methodDeclaratorRest: formalParameters bracketsOpt (Throws qualifiedIdentifierList)?(methodBody | Semicolon);
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voidMethodDeclaratorRest: formalParameters (Throws qualifiedIdentifierList)? (methodBody | Semicolon);
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interfaceMethodDeclaratorRest: formalParameters bracketsOpt (Throws qualifiedIdentifierList)? Semicolon;
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voidInterfaceMethodDeclaratorRest: formalParameters (Throws qualifiedIdentifierList)? Semicolon;
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constructorDeclaratorRest: formalParameters (Throws qualifiedIdentifierList)? methodBody;
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qualifiedIdentifierList: qualifiedIdentifier (Comma qualifiedIdentifier)*;
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formalParameters: ParenthesesLeft (formalParameter (Comma formalParameter)*)? ParenthesesRight;
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formalParameter: (Final)? type variableDeclaratorId;
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methodBody: block;
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