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package org.zwobble.couscous.ast;
import com.google.common.collect.Iterables;
import org.zwobble.couscous.ast.visitors.NodeTransformer;
import org.zwobble.couscous.ast.visitors.StatementNodeMapper;
import org.zwobble.couscous.util.ExtraIterables;
import java.util.List;
public class IfStatementNode implements StatementNode {
public static StatementNode ifStatement(
ExpressionNode condition,
List<StatementNode> trueBranch,
List<StatementNode> falseBranch) {
return new IfStatementNode(condition, trueBranch, falseBranch);
}
private final ExpressionNode condition;
private final List<StatementNode> trueBranch;
private final List<StatementNode> falseBranch;
private IfStatementNode(
ExpressionNode condition,
List<StatementNode> trueBranch,
List<StatementNode> falseBranch) {
this.condition = condition;
this.trueBranch = trueBranch;
this.falseBranch = falseBranch;
}
public ExpressionNode getCondition() {
return condition;
}
public List<StatementNode> getTrueBranch() {
return trueBranch;
}
public List<StatementNode> getFalseBranch() {
return falseBranch;
}
@Override
public <T> T accept(StatementNodeMapper<T> visitor) {
return visitor.visit(this);
}
@Override
public Iterable<? extends Node> childNodes() {
return Iterables.concat(ExtraIterables.of(condition), trueBranch, falseBranch);
}
@Override
public StatementNode transform(NodeTransformer transformer) {
return new IfStatementNode(
transformer.transformExpression(condition),
transformer.transformStatements(trueBranch),
transformer.transformStatements(falseBranch));
}
@Override
public String toString() {
return "IfStatementNode(condition=" + condition + ", trueBranch="
+ trueBranch + ", falseBranch=" + falseBranch + ")";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((condition == null) ? 0 : condition.hashCode());
result = prime * result
+ ((falseBranch == null) ? 0 : falseBranch.hashCode());
result = prime * result
+ ((trueBranch == null) ? 0 : trueBranch.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
IfStatementNode other = (IfStatementNode) obj;
if (condition == null) {
if (other.condition != null)
return false;
} else if (!condition.equals(other.condition))
return false;
if (falseBranch == null) {
if (other.falseBranch != null)
return false;
} else if (!falseBranch.equals(other.falseBranch))
return false;
if (trueBranch == null) {
if (other.trueBranch != null)
return false;
} else if (!trueBranch.equals(other.trueBranch))
return false;
return true;
}
}
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