Package com.tonic.analysis.source.ast.stmt

Class WhileStmt

java.lang.Object

com.tonic.analysis.source.ast.stmt.WhileStmt

All Implemented Interfaces:

ASTNode, Statement

public final class WhileStmt
extends Object
implements Statement

A while loop with an optional label.

Constructor Summary

Constructors

Constructor	Description
WhileStmt(Expression condition, Statement body)	Creates an unlabeled while loop with an unknown location.
WhileStmt(Expression condition, Statement body, String label)	Creates a labeled while loop with an unknown location.
WhileStmt(Expression condition, Statement body, String label, SourceLocation location)	Creates a while loop, adopting the condition and body as children.

Method Summary

Modifier and Type	Method	Description
<T> T	accept(SourceVisitor<T> visitor)	Accepts a visitor for this node.
Statement	getBody()
List<ASTNode>	getChildren()	Lists the direct children a node holds, in source order.
Expression	getCondition()
String	getLabel()	Gets the label for this statement, if any.
SourceLocation	getLocation()	Gets the source location of this node.
ASTNode	getParent()	Gets the parent node in the AST tree.
void	setBody(Statement body)	Replaces the loop body, reparenting it and releasing the previous one.
void	setCondition(Expression condition)	Replaces the loop condition, reparenting it and releasing the previous one.
void	setLabel(String label)	Sets the label targeted by labeled break and continue.
void	setLocation(SourceLocation location)	Sets this statement's source location.
void	setParent(ASTNode parent)	Sets the node this statement hangs from.
String	toString()
WhileStmt	withBody(Statement body)	Replaces the loop body in place, reparenting it and releasing the previous one.
WhileStmt	withCondition(Expression condition)	Replaces the loop condition in place, reparenting it and releasing the previous one.
WhileStmt	withLabel(String label)	Sets the label in place.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.tonic.analysis.source.ast.ASTNode

deepClone, findAll, findAll, findAncestor, findFirst, findFirst, getRoot, isDescendantOf, remove, replaceWith, stream, stream, walk

Constructor Detail

WhileStmt

public WhileStmt(Expression condition,
                 Statement body,
                 String label,
                 SourceLocation location)

Creates a while loop, adopting the condition and body as children.

Parameters:

condition - the loop condition

body - the loop body

label - the loop label, or null

location - the source location, or null for unknown

Throws:

NullPointerException - if the condition or body is null

WhileStmt

public WhileStmt(Expression condition,
                 Statement body,
                 String label)

Creates a labeled while loop with an unknown location.

Parameters:

condition - the loop condition

body - the loop body

label - the loop label, or null

Throws:

NullPointerException - if the condition or body is null

WhileStmt

public WhileStmt(Expression condition,
                 Statement body)

Creates an unlabeled while loop with an unknown location.

Parameters:

condition - the loop condition

body - the loop body

Throws:

NullPointerException - if the condition or body is null

Method Detail

getCondition

public Expression getCondition()

Returns:

the condition

setCondition

public void setCondition(Expression condition)

Replaces the loop condition, reparenting it and releasing the previous one.

Parameters:

condition - the new condition

getBody

public Statement getBody()

Returns:

the body

setBody

public void setBody(Statement body)

Replaces the loop body, reparenting it and releasing the previous one.

Parameters:

body - the new body

setLabel

public void setLabel(String label)

Sets the label targeted by labeled break and continue.

Parameters:

label - the new label, or null to drop it

getLocation

public SourceLocation getLocation()

Description copied from interface: ASTNode

Gets the source location of this node.

Specified by:

getLocation in interface ASTNode

Returns:

the location

getParent

public ASTNode getParent()

Description copied from interface: ASTNode

Gets the parent node in the AST tree.

Specified by:

getParent in interface ASTNode

Returns:

the parent

setParent

public void setParent(ASTNode parent)

Sets the node this statement hangs from.

Specified by:

setParent in interface ASTNode

Parameters:

parent - the enclosing node

getLabel

public String getLabel()

Description copied from interface: Statement

Gets the label for this statement, if any.

Specified by:

getLabel in interface Statement

Returns:

the label, or null if not labeled

withCondition

public WhileStmt withCondition(Expression condition)

Replaces the loop condition in place, reparenting it and releasing the previous one.

Parameters:

condition - the new condition, may be null

Returns:

this statement

withBody

public WhileStmt withBody(Statement body)

Replaces the loop body in place, reparenting it and releasing the previous one.

Parameters:

body - the new body, may be null

Returns:

this statement

withLabel

public WhileStmt withLabel(String label)

Sets the label in place.

Parameters:

label - the new label, or null to drop it

Returns:

this statement

getChildren

public List<ASTNode> getChildren()

Description copied from interface: ASTNode

Lists the direct children a node holds, in source order.

Specified by:

getChildren in interface ASTNode

Returns:

the direct children, empty for a leaf

accept

public <T> T accept(SourceVisitor<T> visitor)

Description copied from interface: ASTNode

Accepts a visitor for this node.

Specified by:

accept in interface ASTNode

Type Parameters:

T - the return type of the visitor

Parameters:

visitor - the visitor to accept

Returns:

the result from the visitor

toString

public String toString()

Overrides:

toString in class Object

setLocation

public void setLocation(SourceLocation location)

Description copied from interface: Statement

Sets this statement's source location.

Specified by:

setLocation in interface Statement

Parameters:

location - the provenance to stamp, or null for SourceLocation.UNKNOWN