Package org.codehaus.groovy.ast.expr
Class EmptyExpression
java.lang.Object
org.codehaus.groovy.ast.ASTNode
org.codehaus.groovy.ast.AnnotatedNode
org.codehaus.groovy.ast.expr.Expression
org.codehaus.groovy.ast.expr.EmptyExpression
- All Implemented Interfaces:
GroovydocHolder<AnnotatedNode>,NodeMetaDataHandler
Placeholder for an empty expression. Empty expressions are used in closures
lists like (;). During class generation empty expressions should be ignored
or replaced with a null value.
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final EmptyExpressionImmutable singleton that is recommended for use when source range or any other occurrence-specific metadata is not needed.Fields inherited from class org.codehaus.groovy.ast.expr.Expression
EMPTY_ARRAYFields inherited from interface groovy.lang.groovydoc.GroovydocHolder
DOC_COMMENT -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptiontransformExpression(ExpressionTransformer transformer) Return a copy of the expression calling the transformer on any nested expressionsvoidvisit(GroovyCodeVisitor visitor) Methods inherited from class org.codehaus.groovy.ast.expr.Expression
getType, setType, transformExpressions, transformExpressionsMethods inherited from class org.codehaus.groovy.ast.AnnotatedNode
addAnnotation, addAnnotation, addAnnotations, getAnnotations, getAnnotations, getDeclaringClass, getGroovydoc, getInstance, hasNoRealSourcePosition, isSynthetic, setDeclaringClass, setHasNoRealSourcePosition, setSyntheticMethods inherited from class org.codehaus.groovy.ast.ASTNode
copyNodeMetaData, getColumnNumber, getLastColumnNumber, getLastLineNumber, getLineNumber, getMetaDataMap, getText, setColumnNumber, setLastColumnNumber, setLastLineNumber, setLineNumber, setMetaDataMap, setSourcePositionMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.codehaus.groovy.ast.NodeMetaDataHandler
copyNodeMetaData, getNodeMetaData, getNodeMetaData, getNodeMetaData, putNodeMetaData, removeNodeMetaData, setNodeMetaData
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Field Details
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INSTANCE
Immutable singleton that is recommended for use when source range or any other occurrence-specific metadata is not needed.
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Constructor Details
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EmptyExpression
public EmptyExpression()- See Also:
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Method Details
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transformExpression
Description copied from class:ExpressionReturn a copy of the expression calling the transformer on any nested expressions- Specified by:
transformExpressionin classExpression
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visit
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