/*******************************************************************************
 * Copyright (c) 2014 Bruno Medeiros and other Contributors.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Bruno Medeiros - initial API and implementation
 *******************************************************************************/
package dtool.engine.analysis.templates;

import static melnorme.utilbox.core.Assert.AssertNamespace.assertNotNull;
import melnorme.lang.tooling.ast.CommonASTNode;
import melnorme.lang.tooling.ast.util.ASTCodePrinter;
import melnorme.lang.tooling.ast_actual.ASTNodeTypes;
import melnorme.lang.tooling.engine.PickedElement;
import melnorme.lang.tooling.engine.resolver.IReference;
import melnorme.lang.tooling.engine.resolver.NamedElementSemantics;
import melnorme.lang.tooling.engine.resolver.VarSemantics;
import melnorme.lang.tooling.symbols.IConcreteNamedElement;
import dtool.ast.definitions.DefSymbol;
import dtool.ast.definitions.EArcheType;
import dtool.ast.expressions.Resolvable;
import dtool.ast.references.Reference;

public class VarElement extends InstantiatedDefUnit implements IConcreteNamedElement {
	
	public final Reference type; // non-children element
	public final Resolvable value; // non-children element
	
	public VarElement(DefSymbol defname, Reference type, Resolvable value) {
		super(defname);
		this.type = checkIsSemanticReady(type);
		this.value = assertNotNull(checkIsSemanticReady(value));
	}
	
	@Override
	public ASTNodeTypes getNodeType() {
		return ASTNodeTypes.TEMPLATE_TYPE_PARAM__INSTANCE;
	}
	
	@Override
	protected CommonASTNode doCloneTree() {
		return new VarElement(clone(defName), type, value);
	}
	
	@Override
	public void toStringAsCode_instantiatedDefUnit(ASTCodePrinter cp) {
		cp.append("@ ", type, " ");
		cp.append(defName);
		cp.append(" = ", value);
	}
	
	@Override
	public EArcheType getArcheType() {
		return EArcheType.Variable;
	}
	
	
	@Override
	public NamedElementSemantics doCreateSemantics(PickedElement<?> pickedElement) {
		return new VarSemantics(this, pickedElement) {
			@Override
			protected IReference getTypeReference() {
				return type;
			};
		};
	}
	
}