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package org.zwobble.couscous.ast;
import org.zwobble.couscous.ast.identifiers.Identifier;
import org.zwobble.couscous.types.Type;
import org.zwobble.couscous.ast.visitors.NodeTransformer;
import org.zwobble.couscous.ast.visitors.StatementNodeMapper;
import org.zwobble.couscous.util.ExtraIterables;
import static org.zwobble.couscous.ast.TypeCoercionNode.coerce;
import static org.zwobble.couscous.ast.VariableDeclaration.var;
public class LocalVariableDeclarationNode implements VariableNode, StatementNode {
public static LocalVariableDeclarationNode localVariableDeclaration(
Identifier id,
String name,
Type type,
ExpressionNode initialValue) {
return localVariableDeclaration(var(id, name, type), initialValue);
}
public static LocalVariableDeclarationNode localVariableDeclaration(
VariableDeclaration declaration,
ExpressionNode initialValue) {
return new LocalVariableDeclarationNode(declaration, coerce(initialValue, declaration.getType()));
}
private final VariableDeclaration declaration;
private final ExpressionNode initialValue;
private LocalVariableDeclarationNode(
VariableDeclaration declaration,
ExpressionNode initialValue) {
this.declaration = declaration;
this.initialValue = initialValue;
}
public VariableDeclaration getDeclaration() {
return declaration;
}
public ExpressionNode getInitialValue() {
return initialValue;
}
public String getName() {
return declaration.getName();
}
public Type getType() {
return declaration.getType();
}
@Override
public <T> T accept(StatementNodeMapper<T> visitor) {
return visitor.visit(this);
}
@Override
public int type() {
return NodeTypes.LOCAL_VARIABLE_DECLARATION;
}
@Override
public Iterable<? extends Node> childNodes() {
return ExtraIterables.of(initialValue);
}
@Override
public StatementNode transform(NodeTransformer transformer) {
return new LocalVariableDeclarationNode(
transformer.transform(declaration),
transformer.transformExpression(initialValue));
}
@Override
public String toString() {
return "LocalVariableDeclarationNode(declaration=" + declaration
+ ", initialValue=" + initialValue + ")";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((declaration == null) ? 0 : declaration.hashCode());
result = prime * result
+ ((initialValue == null) ? 0 : initialValue.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;
LocalVariableDeclarationNode other = (LocalVariableDeclarationNode) obj;
if (declaration == null) {
if (other.declaration != null)
return false;
} else if (!declaration.equals(other.declaration))
return false;
if (initialValue == null) {
if (other.initialValue != null)
return false;
} else if (!initialValue.equals(other.initialValue))
return false;
return true;
}
}
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