Package org.codehaus.groovy.ast.stmt

Class SwitchStatement

java.lang.Object

org.codehaus.groovy.ast.ASTNode

org.codehaus.groovy.ast.stmt.Statement

org.codehaus.groovy.ast.stmt.SwitchStatement

All Implemented Interfaces:

NodeMetaDataHandler

public class SwitchStatement
extends Statement

Represents a switch (object) { case value: ... case [1, 2, 3]: ... default: ... } statement in Groovy. A switch statement evaluates the control expression against a sequence of case values and executes the code associated with the matching case, or the default statement if no case matches.

Constructor Summary

Constructors

Constructor	Description
SwitchStatement(Expression expression)	Constructs a switch statement with the given control expression.
SwitchStatement(Expression expression, List<CaseStatement> caseStatements, Statement defaultStatement)	Constructs a switch statement with the given control expression, case statements, and default statement.
SwitchStatement(Expression expression, Statement defaultStatement)	Constructs a switch statement with the given control expression and default statement.

Method Summary

Modifier and Type	Method	Description
void	addCase(CaseStatement caseStatement)	Adds a case statement to this switch.
CaseStatement	getCaseStatement(int idx)	Returns the case statement at the given index.
List<CaseStatement>	getCaseStatements()	Returns the list of case statements in this switch.
Statement	getDefaultStatement()	Returns the statement executed when no case matches the control expression.
Expression	getExpression()	Returns the control expression that is evaluated against case values.
void	setDefaultStatement(Statement defaultStatement)	Sets the statement executed when no case matches the control expression.
void	setExpression(Expression e)	Sets the control expression that is evaluated against case values.
void	visit(GroovyCodeVisitor visitor)	Accepts a code visitor for AST traversal and transformation.

Methods inherited from class org.codehaus.groovy.ast.stmt.Statement

addStatementAnnotation, addStatementLabel, copyStatementLabels, getStatementAnnotations, getStatementLabel, getStatementLabels, isEmpty, setStatementLabel

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

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

Methods inherited from class java.lang.Object

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

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

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

Constructor Details

SwitchStatement

public SwitchStatement(Expression expression)

Constructs a switch statement with the given control expression. The default statement is initialized to EmptyStatement.INSTANCE.

Parameters:

expression - the expression to evaluate against case values

See Also:

• SwitchStatement(Expression, Statement)

SwitchStatement

public SwitchStatement(Expression expression,
 Statement defaultStatement)

Constructs a switch statement with the given control expression and default statement.

Parameters:

expression - the expression to evaluate against case values

defaultStatement - the statement executed when no case matches; may be EmptyStatement.INSTANCE

See Also:

• SwitchStatement(Expression, List, Statement)

SwitchStatement

public SwitchStatement(Expression expression,
 List<CaseStatement> caseStatements,
 Statement defaultStatement)

Constructs a switch statement with the given control expression, case statements, and default statement.

Parameters:

expression - the expression to evaluate against case values

caseStatements - the list of CaseStatement objects representing case branches

defaultStatement - the statement executed when no case matches

Method Details

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 ASTNode

Parameters:

visitor - the GroovyCodeVisitor to process this node

getCaseStatements

public List<CaseStatement> getCaseStatements()

Returns the list of case statements in this switch.

Returns:

a list of CaseStatement objects; never null

getExpression

public Expression getExpression()

Returns the control expression that is evaluated against case values.

Returns:

the control Expression

setExpression

public void setExpression(Expression e)

Sets the control expression that is evaluated against case values.

Parameters:

e - the control Expression

getDefaultStatement

public Statement getDefaultStatement()

Returns the statement executed when no case matches the control expression.

Returns:

the default Statement, or EmptyStatement.INSTANCE if not set

setDefaultStatement

public void setDefaultStatement(Statement defaultStatement)

Sets the statement executed when no case matches the control expression.

Parameters:

defaultStatement - the default Statement

addCase

public void addCase(CaseStatement caseStatement)

Adds a case statement to this switch.

Parameters:

caseStatement - the CaseStatement to add

getCaseStatement

public CaseStatement getCaseStatement(int idx)

Returns the case statement at the given index.

Parameters:

idx - the index of the case statement to retrieve

Returns:

the CaseStatement at the given index, or null if the index is out of bounds