net.cscott.sdr.calls.ast
Class If

java.lang.Object
  net.cscott.sdr.calls.ast.AstNode
      net.cscott.sdr.calls.ast.Comp
          net.cscott.sdr.calls.ast.If

public class If
extends Comp

If rejects its child as suitable for execution from the current formation unless its condition evaluates true.

Version:

$Id: If.java,v 1.7 2006-10-17 16:29:05 cananian Exp $

Author:

C. Scott Ananian

Field Summary

Comp	child
Condition	condition

Fields inherited from class net.cscott.sdr.calls.ast.AstNode

type

Constructor Summary

If(Condition condition, Comp child)

Method Summary

<T> Comp	accept(TransformVisitor<T> v, T t) Visitor pattern implementation for transformations.
<RESULT,CLOSURE> RESULT	accept(ValueVisitor<RESULT,CLOSURE> v, CLOSURE cl) Visitor pattern implementation for computations.
String	argsToString()
If	build(Condition condition, Comp child) Factory: creates new If only if it would differ from this.

Methods inherited from class net.cscott.sdr.calls.ast.AstNode

toString, valueOf

Methods inherited from class java.lang.Object

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

Field Detail

condition

public final Condition condition

child

public final Comp child

Constructor Detail

If

public If(Condition condition,
          Comp child)

Method Detail

accept

public <T> Comp accept(TransformVisitor<T> v,
                       T t)

Description copied from class: AstNode

Visitor pattern implementation for transformations. Each AstNode accepts a TransformVisitor and a value, and returns an instance of its own type (ie, Seq.accept(tv, "A") returns a Seq). The 't' parameter is a closure.

Specified by:

accept in class Comp

accept

public <RESULT,CLOSURE> RESULT accept(ValueVisitor<RESULT,CLOSURE> v,
                                      CLOSURE cl)

Description copied from class: AstNode

Visitor pattern implementation for computations. Each AstNode accepts a ValueVisitor and a closure, and returns an object of the appropriate result type.

Specified by:

accept in class AstNode

build

public If build(Condition condition,
                Comp child)

Factory: creates new If only if it would differ from this.

argsToString

public String argsToString()

Overrides:

argsToString in class AstNode