package LBJ2.IR;
import LBJ2.Pass;
/**
* Represents a while loop.
*
* @author Nick Rizzolo
**/
public class DoStatement extends WhileStatement
{
/**
* Full constructor.
*
* @param b The body of the loop.
* @param c The terminating condition.
* @param line The line on which the source code represented by this
* node is found.
* @param byteOffset The byte offset from the beginning of the source file
* at which the source code represented by this node is
* found.
**/
public DoStatement(Statement b, Expression c, int line, int byteOffset) {
super(c, b, line, byteOffset);
}
/**
* Returns an iterator used to successively access the children of this
* node.
*
* @return An iterator used to successively access the children of this
* node.
**/
public ASTNodeIterator iterator() {
ASTNodeIterator I = new ASTNodeIterator(2);
I.children[0] = body;
I.children[1] = condition;
return I;
}
/**
* Creates a new object with the same primitive data, and recursively
* creates new member data objects as well.
*
* @return The clone node.
**/
public Object clone() {
return new DoStatement((Statement) body.clone(),
(Expression) condition.clone(), -1, -1);
}
/**
* Ensures that the correct <code>run()</code> method is called for this
* type of node.
*
* @param pass The pass whose <code>run()</code> method should be called.
**/
public void runPass(Pass pass) { pass.run(this); }
/**
* Writes a string representation of this <code>ASTNode</code> to the
* specified buffer. The representation written is parsable by the LBJ2
* compiler, but not very readable.
*
* @param buffer The buffer to write to.
**/
public void write(StringBuffer buffer) {
buffer.append("do ");
body.write(buffer);
buffer.append(" while (");
condition.write(buffer);
buffer.append(");");
}
}