Copyright (c) 2000, 2013 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2013 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.codeassist.complete;

/*
 * Completion node build by the parser in any case it was intending to
 * reduce a message send containing the cursor.
 * e.g.
 *
 *	class X {
 *    void foo() {
 *      this.bar(1, 2, [cursor]
 *    }
 *  }
 *
 *	---> class X {
 *         void foo() {
 *           <CompleteOnMessageSend:this.bar(1, 2)>
 *         }
 *       }
 *
 * The source range is always of length 0.
 * The arguments of the message send are all the arguments defined
 * before the cursor.
 */

import org.eclipse.jdt.internal.compiler.ast.*;
import org.eclipse.jdt.internal.compiler.impl.Constant;
import org.eclipse.jdt.internal.compiler.lookup.*;

public class CompletionOnMessageSend extends MessageSend {

	@Override
	public TypeBinding resolveType(BlockScope scope) {
		this.constant = Constant.NotAConstant;
		if (this.arguments != null) {
			int argsLength = this.arguments.length;
			for (int a = argsLength; --a >= 0;)
				this.arguments[a].resolveType(scope);
		}

		if (this.receiver.isImplicitThis())
			throw new CompletionNodeFound(this, null, scope);

		this.actualReceiverType = this.receiver.resolveType(scope);
		if (this.actualReceiverType == null || this.actualReceiverType.isBaseType())
			throw new CompletionNodeFound();

		if (this.actualReceiverType.isArrayType())
			this.actualReceiverType = scope.getJavaLangObject();
		throw new CompletionNodeFound(this, this.actualReceiverType, scope);
	}

	@Override
	public StringBuffer printExpression(int indent, StringBuffer output) {

		output.append("<CompleteOnMessageSend:"); //$NON-NLS-1$
		if (!this.receiver.isImplicitThis()) this.receiver.printExpression(0, output).append('.');
		if (this.typeArguments != null) {
			output.append('<');
			int max = this.typeArguments.length - 1;
			for (int j = 0; j < max; j++) {
				this.typeArguments[j].print(0, output);
				output.append(", ");//$NON-NLS-1$
			}
			this.typeArguments[max].print(0, output);
			output.append('>');
		}
		output.append(this.selector).append('(');
		if (this.arguments != null) {
			for (int i = 0; i < this.arguments.length; i++) {
				if (i > 0) output.append(", "); //$NON-NLS-1$
				this.arguments[i].printExpression(0, output);
			}
		}
		return output.append(")>"); //$NON-NLS-1$
	}
}