Copyright (c) 2016, 2018 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) 2016, 2018 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.ast;

import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.lookup.ModuleBinding;
import org.eclipse.jdt.internal.compiler.lookup.Scope;

public class RequiresStatement extends ModuleStatement {

	public ModuleReference module;
	public ModuleBinding resolvedBinding;
	public int modifiers = ClassFileConstants.AccDefault;
	public int modifiersSourceStart;

	public RequiresStatement(ModuleReference module) {
		this.module = module;
	}
	public boolean isTransitive() {
		return (this.modifiers & ClassFileConstants.ACC_TRANSITIVE) != 0;
	}
	public boolean isStatic() {
		return (this.modifiers & ClassFileConstants.ACC_STATIC_PHASE) != 0;
	}
	@Override
	public StringBuffer print(int indent, StringBuffer output) {
		output.append("requires "); //$NON-NLS-1$
		if (isTransitive())
			output.append("transitive "); //$NON-NLS-1$
		if (isStatic())
			output.append("static "); //$NON-NLS-1$
		this.module.print(indent, output);
		output.append(";"); //$NON-NLS-1$
	return output;
	}
	public ModuleBinding resolve(Scope scope) {
		if (this.resolvedBinding != null)
			return this.resolvedBinding;
		this.resolvedBinding = this.module.resolve(scope);
		if (scope != null) {
			if (this.resolvedBinding == null) {
				scope.problemReporter().invalidModule(this.module);
			} else if (this.resolvedBinding.hasUnstableAutoName()) {
				scope.problemReporter().autoModuleWithUnstableName(this.module);
			}
		}
		return this.resolvedBinding;
	}

}