net.sourceforge.pmd.lang.java.ast.ASTIfStatement Maven / Gradle / Ivy
/**
* BSD-style license; for more info see http://pmd.sourceforge.net/license.html
*/
package net.sourceforge.pmd.lang.java.ast;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Represents an {@code if} statement, possibly with an {@code else} statement.
*
*
*
* IfStatement ::= "if" "(" {@linkplain ASTExpression Expression} ")" {@linkplain ASTStatement Statement}
* ( "else" {@linkplain ASTStatement Statement} )?
*
*
*/
public final class ASTIfStatement extends AbstractStatement {
private boolean hasElse;
ASTIfStatement(int id) {
super(id);
}
void setHasElse() {
this.hasElse = true;
}
/**
* Returns true if this statement has an {@code else} clause.
*/
public boolean hasElse() {
return this.hasElse;
}
/**
* Returns the node that represents the guard of this conditional.
* This may be any expression of type boolean.
*/
public ASTExpression getCondition() {
return (ASTExpression) getChild(0);
}
/**
* Returns the statement that will be run if the guard evaluates
* to true.
*/
public ASTStatement getThenBranch() {
return (ASTStatement) getChild(1);
}
/**
* Returns the statement of the {@code else} clause, if any.
*/
public @Nullable ASTStatement getElseBranch() {
return hasElse() ? (ASTStatement) getChild(2) : null;
}
@Override
public R acceptVisitor(JavaVisitor visitor, P data) {
return visitor.visit(this, data);
}
}