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25 
26 package jdk.nashorn.api.tree;
27 
28 import jdk.nashorn.internal.ir.IfNode;
29 
30 final class IfTreeImpl extends StatementTreeImpl implements IfTree {
31     private final ExpressionTree cond;
32     private final StatementTree thenStat;
33     private final StatementTree elseStat;
IfTreeImpl(final IfNode node, final ExpressionTree cond, final StatementTree thenStat, final StatementTree elseStat)34     IfTreeImpl(final IfNode node, final ExpressionTree cond,
35             final StatementTree thenStat, final StatementTree elseStat) {
36         super(node);
37         this.cond = cond;
38         this.thenStat = thenStat;
39         this.elseStat = elseStat;
40     }
41 
42     @Override
getKind()43     public Kind getKind() {
44         return Kind.IF;
45     }
46 
47     @Override
getCondition()48     public ExpressionTree getCondition() {
49         return cond;
50     }
51 
52     @Override
getThenStatement()53     public StatementTree getThenStatement() {
54         return thenStat;
55     }
56 
57     /**
58      * @return null if this if statement has no else branch.
59      */
60     @Override
getElseStatement()61     public StatementTree getElseStatement() {
62         return elseStat;
63     }
64 
65     @Override
accept(final TreeVisitor<R,D> visitor, final D data)66     public <R,D> R accept(final TreeVisitor<R,D> visitor, final D data) {
67         return visitor.visitIf(this, data);
68     }
69 }
70