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package org.zwobble.couscous.ast;
import org.zwobble.couscous.ast.visitors.NodeTransformer;
import org.zwobble.couscous.types.ScalarType;
import org.zwobble.couscous.types.Type;
import org.zwobble.couscous.util.ExtraIterables;
import static org.zwobble.couscous.ast.InstanceReceiver.instanceReceiver;
import static org.zwobble.couscous.ast.StaticReceiver.staticReceiver;
public class FieldAccessNode implements AssignableExpressionNode {
public static FieldAccessNode fieldAccess(
ExpressionNode left,
String fieldName,
Type type)
{
return fieldAccess(instanceReceiver(left), fieldName, type);
}
public static FieldAccessNode fieldAccess(
ScalarType left,
String fieldName,
Type type)
{
return fieldAccess(staticReceiver(left), fieldName, type);
}
public static FieldAccessNode fieldAccess(
Receiver left,
String fieldName,
Type type)
{
return new FieldAccessNode(left, fieldName, type);
}
private final Receiver left;
private final String fieldName;
private final Type type;
public FieldAccessNode(
Receiver left,
String fieldName,
Type type)
{
this.left = left;
this.fieldName = fieldName;
this.type = type;
}
public Receiver getLeft() {
return left;
}
public String getFieldName() {
return fieldName;
}
public Type getType() {
return type;
}
@Override
public int type() {
return NodeTypes.FIELD_ACCESS;
}
@Override
public Iterable<? extends Node> childNodes() {
return ExtraIterables.of(left);
}
@Override
public ExpressionNode transformSubtree(NodeTransformer transformer) {
return new FieldAccessNode(
transformer.transformReceiver(left),
transformer.transformFieldName(fieldName),
transformer.transform(type));
}
@Override
public String toString() {
return "FieldAccessNode(left=" + left + ", fieldName=" + fieldName
+ ", type=" + type + ")";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((fieldName == null) ? 0 : fieldName.hashCode());
result = prime * result + ((left == null) ? 0 : left.hashCode());
result = prime * result + ((type == null) ? 0 : type.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;
FieldAccessNode other = (FieldAccessNode) obj;
if (fieldName == null) {
if (other.fieldName != null)
return false;
} else if (!fieldName.equals(other.fieldName))
return false;
if (left == null) {
if (other.left != null)
return false;
} else if (!left.equals(other.left))
return false;
if (type == null) {
if (other.type != null)
return false;
} else if (!type.equals(other.type))
return false;
return true;
}
}
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