Copyright (c) 2000, 2009 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, 2009 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.compiler.lookup;

/**
 * Specific local variable location used to:
 * - either provide emulation for outer local variables used from within innerclass constructs,
 * - or provide emulation to enclosing instances.
 * When it is mapping to an outer local variable, this actual outer local is accessible through
 * the public field #actualOuterLocalVariable.
 *
 * Such a synthetic argument binding will be inserted in all constructors of local innertypes before
 * the user arguments.
 */

import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;

public class SyntheticArgumentBinding extends LocalVariableBinding {

	{
		this.tagBits |= TagBits.IsArgument;
		this.useFlag = USED;
	}

	// if the argument is mapping to an outer local variable, this denotes the outer actual variable
	public LocalVariableBinding actualOuterLocalVariable;
	// if the argument has a matching synthetic field
	public FieldBinding matchingField;

	public SyntheticArgumentBinding(LocalVariableBinding actualOuterLocalVariable) {

		super(
			CharOperation.concat(TypeConstants.SYNTHETIC_OUTER_LOCAL_PREFIX, actualOuterLocalVariable.name),
			actualOuterLocalVariable.type,
			ClassFileConstants.AccFinal,
			true);
		this.actualOuterLocalVariable = actualOuterLocalVariable;
	}

	public SyntheticArgumentBinding(ReferenceBinding enclosingType) {

		super(
			CharOperation.concat(
				TypeConstants.SYNTHETIC_ENCLOSING_INSTANCE_PREFIX,
				String.valueOf(enclosingType.depth()).toCharArray()),
			enclosingType,
			ClassFileConstants.AccFinal,
			true);
	}
}