Package org.codehaus.groovy.transform.sc.transformers

Class CompareIdentityExpression

java.lang.Object

org.codehaus.groovy.ast.ASTNode

org.codehaus.groovy.ast.AnnotatedNode

org.codehaus.groovy.ast.expr.Expression

org.codehaus.groovy.ast.expr.BinaryExpression

org.codehaus.groovy.transform.sc.transformers.CompareIdentityExpression

All Implemented Interfaces:

GroovydocHolder<AnnotatedNode>, NodeMetaDataHandler

public class CompareIdentityExpression
extends BinaryExpression

Compares two objects using identity comparison. This expression will generate bytecode using the IF_ACMPNE instruction, instead of using the "equals" method that is currently mapped to "==" in Groovy. This expression should only be used to compare to objects, not primitives, and only in the context of reference equality check.

Field Summary

Fields inherited from class org.codehaus.groovy.ast.expr.Expression

EMPTY_ARRAY

Fields inherited from interface groovy.lang.groovydoc.GroovydocHolder

DOC_COMMENT

Constructor Summary

Constructors

Constructor	Description
CompareIdentityExpression(Expression leftExpression, boolean eq, Expression rightExpression)
CompareIdentityExpression(Expression leftExpression, Expression rightExpression)

Method Summary

Modifier and Type	Method	Description
boolean	isEq()
void	setType(ClassNode type)	Sets the type information for this expression.
Expression	transformExpression(ExpressionTransformer transformer)	Transforms this expression and any nested expressions according to the provided transformer.
void	visit(GroovyCodeVisitor visitor)	Accepts a code visitor for AST traversal and transformation.

Methods inherited from class org.codehaus.groovy.ast.expr.BinaryExpression

getLeftExpression, getOperation, getRightExpression, getText, isSafe, newAssignmentExpression, newInitializationExpression, setLeftExpression, setRightExpression, setSafe, toString

Methods inherited from class org.codehaus.groovy.ast.expr.Expression

getType, transformExpressions, transformExpressions

Methods inherited from class org.codehaus.groovy.ast.AnnotatedNode

addAnnotation, addAnnotation, addAnnotations, getAnnotations, getAnnotations, getDeclaringClass, getGroovydoc, getInstance, hasNoRealSourcePosition, isSynthetic, setDeclaringClass, setHasNoRealSourcePosition, setSynthetic

Methods inherited from class org.codehaus.groovy.ast.ASTNode

copyNodeMetaData, getColumnNumber, getLastColumnNumber, getLastLineNumber, getLineNumber, getMetaDataMap, setColumnNumber, setLastColumnNumber, setLastLineNumber, setLineNumber, setMetaDataMap, setSourcePosition

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.codehaus.groovy.ast.NodeMetaDataHandler

copyNodeMetaData, getNodeMetaData, getNodeMetaData, getNodeMetaData, newMetaDataMap, putNodeMetaData, removeNodeMetaData, setNodeMetaData

Constructor Details

CompareIdentityExpression

public CompareIdentityExpression(Expression leftExpression,
 boolean eq,
 Expression rightExpression)

CompareIdentityExpression

public CompareIdentityExpression(Expression leftExpression,
 Expression rightExpression)

Method Details

isEq

public boolean isEq()

setType

public void setType(ClassNode type)

Description copied from class: Expression

Sets the type information for this expression. Used during type checking and compilation phases to associate a specific type with this expression result.

Overrides:

setType in class Expression

Parameters:

type - the ClassNode representing this expression's type

transformExpression

public Expression transformExpression(ExpressionTransformer transformer)

Description copied from class: Expression

Transforms this expression and any nested expressions according to the provided transformer. This method is called during AST transformation phases and must recursively transform any nested expressions to support full AST tree transformation.

Overrides:

transformExpression in class BinaryExpression

Parameters:

transformer - the ExpressionTransformer to apply

Returns:

a transformed copy of this expression (or this expression itself if no changes are needed)

visit

public void visit(GroovyCodeVisitor visitor)

Description copied from class: ASTNode

Accepts a code visitor for AST traversal and transformation. Subclasses must implement this method to support visitor pattern-based processing. The visitor pattern enables decoupling of AST structure from processing logic.

Overrides:

visit in class BinaryExpression

Parameters:

visitor - the GroovyCodeVisitor to process this node