java.lang.Object
- net.sourceforge.pmd.lang.ast.impl.AbstractNode<B,N>
- - net.sourceforge.pmd.lang.ast.impl.javacc.AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - - net.sourceforge.pmd.lang.java.ast.ASTMethodReference

All Implemented Interfaces:: GenericNode<JavaNode>, JjtreeNode<JavaNode>, Node, TextAvailableNode, ASTExpression, ASTMemberValue, ASTPrimaryExpression, ASTSwitchArrowRHS, FunctionalExpression, JavaNode, MethodUsage, QualifiableExpression, TypeNode, Reportable

public final class ASTMethodReference
extends AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
implements QualifiableExpression, MethodUsage, FunctionalExpression

Method or constructor reference expression.


 MethodReference ::= Expression "::" TypeArguments? <IDENTIFIER>
                   | TypeExpression "::" TypeArguments? "new"

Nested Class Summary
- Nested classes/interfaces inherited from interface net.sourceforge.pmd.lang.java.ast.ASTExpression
  ASTExpression.ConstResult

Field Summary

Fields
Modifier and Type Field Description

protected JSymbolTable symbolTable
- Fields inherited from class net.sourceforge.pmd.lang.ast.impl.javacc.AbstractJjtreeNode
  id
- Fields inherited from interface net.sourceforge.pmd.lang.ast.Node
  COORDS_COMPARATOR

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`<P,R> R`	`acceptVisitor(AstVisitor<? super P,? extends R> visitor, P data)`
`protected <P,R> R`	`acceptVisitor(JavaVisitor<? super P,? extends R> visitor, P data)`
`protected void`	`addChild(net.sourceforge.pmd.lang.java.ast.AbstractJavaNode child, int index)`
`protected @Nullable Object`	`buildConstValue()`	Deprecated. Since 7.12.0.
`protected void`	`enlargeLeft(JavaccToken child)`
`@NonNull ASTExpression.ConstResult`	`getConstFoldingResult()`	Returns the result of constant folding on this expression.
`@Nullable ASTTypeArguments`	`getExplicitTypeArguments()`	Returns the explicit type arguments mentioned after the "::" if they exist.
`JMethodSig`	`getFunctionalMethod()`	Returns the method that is overridden in the functional interface.
`TypeNode`	`getLhs()`	Returns the LHS, whether it is a type or an expression.
`@NonNull String`	`getMethodName()`	Returns the method name, or an `JConstructorSymbol.CTOR_NAME` if this is a constructor reference.
`OverloadSelectionResult`	`getOverloadSelectionInfo()`	Returns information about the overload selection for this call.
`int`	`getParenthesisDepth()`	Returns the number of parenthesis levels around this expression.
`@NonNull ASTExpression`	`getQualifier()`	Returns the node to the left of the "::".
`JMethodSig`	`getReferencedMethod()`	Returns the method that is referenced.
`@NonNull ASTCompilationUnit`	`getRoot()`
`@NonNull JSymbolTable`	`getSymbolTable()`	Returns the symbol table for the program point represented by this node.
`@NonNull JTypeMirror`	`getTypeMirror()`	Returns the type of the functional interface.
`@NonNull JTypeMirror`	`getTypeMirror(TypingContext context)`
`TypeSystem`	`getTypeSystem()`	Returns the type system with which this node was created.
`String`	`getXPathNodeName()`
`protected void`	`insertChild(net.sourceforge.pmd.lang.java.ast.AbstractJavaNode child, int index)`
`boolean`	`isConstructorReference()`	Returns true if this is a constructor reference, e.g.
`void`	`jjtClose()`
`protected void`	`removeChildAtIndex(int childIndex)`
`protected void`	`setChild(net.sourceforge.pmd.lang.java.ast.AbstractJavaNode child, int index)`
`protected void`	`setFirstToken(JavaccToken token)`
`protected void`	`setImage(String image)`
`protected void`	`setLastToken(JavaccToken token)`

Methods inherited from class net.sourceforge.pmd.lang.ast.impl.javacc.AbstractJjtreeNode
compareLocation, fitTokensToChildren, getFirstToken, getImage, getLastToken, getTextRegion, jjtOpen, toString

Methods inherited from class net.sourceforge.pmd.lang.ast.impl.AbstractNode
children, firstChild, getChild, getIndexInParent, getNumChildren, getParent, getUserMap, remove, setParent

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sourceforge.pmd.lang.java.ast.ASTExpression
getConstFoldingResult, getConstValue, getConversionContext, getParenthesisDepth, isCompileTimeConstant, isExpression, isParenthesized

Methods inherited from interface net.sourceforge.pmd.lang.ast.impl.GenericNode
ancestors, ancestorsOrSelf, asStream, children, descendants, descendantsOrSelf, getChild, getFirstChild, getLastChild, getNextSibling, getParent, getPreviousSibling

Methods inherited from interface net.sourceforge.pmd.lang.java.ast.JavaNode
getEnclosingType, getRoot, getSymbolTable, getTypeSystem

Methods inherited from interface net.sourceforge.pmd.lang.ast.impl.javacc.JjtreeNode
getFirstToken, getLastToken, tokens

Methods inherited from interface net.sourceforge.pmd.lang.ast.Node
acceptVisitor, ancestors, children, compareLocation, descendants, firstChild, getAstInfo, getBeginColumn, getBeginLine, getEndColumn, getEndLine, getImage, getIndexInParent, getLanguageVersion, getNumChildren, getReportLocation, getTextDocument, getUserMap, getXPathAttributesIterator, getXPathNodeName, hasImageEqualTo, isFindBoundary

Methods inherited from interface net.sourceforge.pmd.lang.ast.TextAvailableNode
getOriginalText, getText, getTextRegion

Methods inherited from interface net.sourceforge.pmd.lang.java.ast.TypeNode
getTypeMirror

- Field Detail
  - symbolTable
```
protected JSymbolTable symbolTable
```
- Method Detail
  - jjtClose
```
public void jjtClose()
```
  - getLhs
```
public TypeNode getLhs()
```
    Returns the LHS, whether it is a type or an expression. Returns null if this is an unqualified method call.
  - isConstructorReference
```
public boolean isConstructorReference()
```
    Returns true if this is a constructor reference, e.g. ArrayList::new.
  - getQualifier
```
public @NonNull ASTExpression getQualifier()
```
    Returns the node to the left of the "::". This may be a type expression, or an ambiguous name.
    Note that if this is a constructor reference, then this can only return a type expression.
    
    Specified by:
    
    getQualifier in interface QualifiableExpression
  - getExplicitTypeArguments
```
public @Nullable ASTTypeArguments getExplicitTypeArguments()
```
    Returns the explicit type arguments mentioned after the "::" if they exist. Type arguments mentioned before the "::", if any, are contained within the lhs type.
  - getMethodName
```
public @NonNull String getMethodName()
```
    Returns the method name, or an JConstructorSymbol.CTOR_NAME if this is a constructor reference.
    
    Specified by:
    
    getMethodName in interface MethodUsage
  - acceptVisitor
```
protected <P,R> R acceptVisitor(JavaVisitor<? super P,? extends R> visitor,
                                      P data)
```
  - getTypeMirror
```
public @NonNull JTypeMirror getTypeMirror()
```
    Returns the type of the functional interface. E.g. in stringStream.map(String::isEmpty), this is java.util.function.Function<java.lang.String, java.lang.Boolean>.
    
    Specified by:
    
    getTypeMirror in interface FunctionalExpression
    
    Specified by:
    
    getTypeMirror in interface TypeNode
    
    Returns:
    
    The type mirror. Never returns null; if the type is unresolved, returns TypeSystem.UNKNOWN.
    
    See Also:
    
    getFunctionalMethod(), getReferencedMethod()
  - getFunctionalMethod
```
public JMethodSig getFunctionalMethod()
```
    Returns the method that is overridden in the functional interface. E.g. in stringStream.map(String::isEmpty), this is java.util.function.Function#apply(java.lang.String) -> java.lang.Boolean
    
    Specified by:
    
    getFunctionalMethod in interface FunctionalExpression
    
    See Also:
    
    getReferencedMethod(), getTypeMirror()
  - getReferencedMethod
```
public JMethodSig getReferencedMethod()
```
    Returns the method that is referenced. E.g. in stringStream.map(String::isEmpty), this is java.lang.String.isEmpty() -> boolean.
    This is called the compile-time declaration of the method reference in the JLS.
    If no such method can be found, returns TypeSystem.UNRESOLVED_METHOD.
    
    See Also:
    
    getFunctionalMethod(), getTypeMirror()
  - getOverloadSelectionInfo
```
public OverloadSelectionResult getOverloadSelectionInfo()
```
    Description copied from interface: MethodUsage
    
    Returns information about the overload selection for this call. Be aware, that selection might have failed (OverloadSelectionResult.isFailed()).
    
    Specified by:
    
    getOverloadSelectionInfo in interface MethodUsage
  - getParenthesisDepth
```
public int getParenthesisDepth()
```
    Description copied from interface: ASTExpression
    
    Returns the number of parenthesis levels around this expression. If this method returns 0, then no parentheses are present.
    E.g. the expression (a + b) is parsed as an AdditiveExpression whose parenthesisDepth is 1, and in ((a + b)) it's 2.
    This is to avoid the parentheses interfering with analysis. Parentheses already influence parsing by breaking the natural precedence of operators. It would mostly hide false positives to make a ParenthesizedExpr node, because it would make semantically equivalent nodes have a very different representation.
    On the other hand, when a rule explicitly cares about parentheses, then this attribute may be used to find out whether parentheses were mentioned, so no information is lost.
    
    Specified by:
    
    getParenthesisDepth in interface ASTExpression
  - getConstFoldingResult
```
public @NonNull ASTExpression.ConstResult getConstFoldingResult()
```
    Description copied from interface: ASTExpression
    
    Returns the result of constant folding on this expression. This may find a constant value for more than strict compile-time constants. See ASTExpression.ConstResult.
    
    Specified by:
    
    getConstFoldingResult in interface ASTExpression
  - buildConstValue
```
@Deprecated
protected @Nullable Object buildConstValue()
```
    Deprecated.
    Since 7.12.0. Kept for binary compatibility. This method should have been package-private from the start. Use ASTExpression.getConstValue() or ASTExpression.getConstFoldingResult() instead.
  - getTypeMirror
```
public @NonNull JTypeMirror getTypeMirror(TypingContext context)
```
    Specified by:
    
    getTypeMirror in interface TypeNode
  - acceptVisitor
```
public final <P,R> R acceptVisitor(AstVisitor<? super P,? extends R> visitor,
                                         P data)
```
    Specified by:
    
    acceptVisitor in interface Node
  - addChild
```
protected void addChild(net.sourceforge.pmd.lang.java.ast.AbstractJavaNode child,
                        int index)
```
    Overrides:
    
    addChild in class AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - insertChild
```
protected void insertChild(net.sourceforge.pmd.lang.java.ast.AbstractJavaNode child,
                           int index)
```
    Overrides:
    
    insertChild in class AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - removeChildAtIndex
```
protected void removeChildAtIndex(int childIndex)
```
    Overrides:
    
    removeChildAtIndex in class AbstractNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - setImage
```
protected void setImage(String image)
```
    Overrides:
    
    setImage in class AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - setFirstToken
```
protected void setFirstToken(JavaccToken token)
```
    Overrides:
    
    setFirstToken in class AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - setLastToken
```
protected void setLastToken(JavaccToken token)
```
    Overrides:
    
    setLastToken in class AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - enlargeLeft
```
protected void enlargeLeft(JavaccToken child)
```
    Overrides:
    
    enlargeLeft in class AbstractJjtreeNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - setChild
```
protected void setChild(net.sourceforge.pmd.lang.java.ast.AbstractJavaNode child,
                        int index)
```
    Overrides:
    
    setChild in class AbstractNode<net.sourceforge.pmd.lang.java.ast.AbstractJavaNode,JavaNode>
  - getSymbolTable
```
public @NonNull JSymbolTable getSymbolTable()
```
    Description copied from interface: JavaNode
    
    Returns the symbol table for the program point represented by this node.
    
    Specified by:
    
    getSymbolTable in interface JavaNode
  - getTypeSystem
```
public TypeSystem getTypeSystem()
```
    Description copied from interface: JavaNode
    
    Returns the type system with which this node was created. This is the object responsible for representing types in the compilation unit.
    
    Specified by:
    
    getTypeSystem in interface JavaNode
  - getRoot
```
public final @NonNull ASTCompilationUnit getRoot()
```
    Specified by:
    
    getRoot in interface JavaNode
    
    Specified by:
    
    getRoot in interface Node
  - getXPathNodeName
```
public final String getXPathNodeName()
```
    Specified by:
    
    getXPathNodeName in interface Node

Class ASTMethodReference

Nested Class Summary

Nested classes/interfaces inherited from interface net.sourceforge.pmd.lang.java.ast.ASTExpression

Field Summary

Fields inherited from class net.sourceforge.pmd.lang.ast.impl.javacc.AbstractJjtreeNode

Fields inherited from interface net.sourceforge.pmd.lang.ast.Node

Method Summary

Methods inherited from class net.sourceforge.pmd.lang.ast.impl.javacc.AbstractJjtreeNode

Methods inherited from class net.sourceforge.pmd.lang.ast.impl.AbstractNode

Methods inherited from class java.lang.Object

Methods inherited from interface net.sourceforge.pmd.lang.java.ast.ASTExpression

Methods inherited from interface net.sourceforge.pmd.lang.ast.impl.GenericNode

Methods inherited from interface net.sourceforge.pmd.lang.java.ast.JavaNode

Methods inherited from interface net.sourceforge.pmd.lang.ast.impl.javacc.JjtreeNode

Methods inherited from interface net.sourceforge.pmd.lang.ast.Node

Methods inherited from interface net.sourceforge.pmd.lang.ast.TextAvailableNode

Methods inherited from interface net.sourceforge.pmd.lang.java.ast.TypeNode

Field Detail

symbolTable

Method Detail

jjtClose

getLhs

isConstructorReference

getQualifier

getExplicitTypeArguments

getMethodName

acceptVisitor

getTypeMirror

getFunctionalMethod

getReferencedMethod

getOverloadSelectionInfo

getParenthesisDepth

getConstFoldingResult

buildConstValue

getTypeMirror

acceptVisitor

addChild

insertChild

removeChildAtIndex

setImage

setFirstToken

setLastToken

enlargeLeft

setChild

getSymbolTable

getTypeSystem

getRoot

getXPathNodeName