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/*******************************************************************************
* Copyright (c) 2000, 2017 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.env;
import java.util.Arrays;
import org.eclipse.jdt.internal.compiler.lookup.ModuleBinding;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
public class NameEnvironmentAnswer {
// only one of the four can be set
IBinaryType binaryType;
ICompilationUnit compilationUnit;
ISourceType[] sourceTypes;
ReferenceBinding binding;
AccessRestriction accessRestriction;
char[] moduleName; // set by name environment
public ModuleBinding moduleBinding; // updated by LookupEnvironment
String externalAnnotationPath; // should be an absolute file system path
public NameEnvironmentAnswer(IBinaryType binaryType, AccessRestriction accessRestriction) {
this.binaryType = binaryType;
this.accessRestriction = accessRestriction;
this.moduleName = binaryType.getModule();
}
public NameEnvironmentAnswer(IBinaryType binaryType, AccessRestriction accessRestriction, char[] module) {
this.binaryType = binaryType;
this.accessRestriction = accessRestriction;
this.moduleName = module;
}
public NameEnvironmentAnswer(ICompilationUnit compilationUnit, AccessRestriction accessRestriction) {
this(compilationUnit, accessRestriction, compilationUnit.getModuleName());
}
public NameEnvironmentAnswer(ICompilationUnit compilationUnit, AccessRestriction accessRestriction, char[] module) {
this.compilationUnit = compilationUnit;
this.accessRestriction = accessRestriction;
this.moduleName = module;
}
public NameEnvironmentAnswer(ISourceType[] sourceTypes, AccessRestriction accessRestriction, String externalAnnotationPath, char[] module) {
this.sourceTypes = sourceTypes;
this.accessRestriction = accessRestriction;
this.externalAnnotationPath = externalAnnotationPath;
this.moduleName = module;
}
public NameEnvironmentAnswer(ReferenceBinding binding, ModuleBinding module) {
this.binding = binding;
this.moduleBinding = module;
}
@Override
public String toString() {
String baseString = ""; //$NON-NLS-1$
if (this.binaryType != null) {
char[] fileNameChars = this.binaryType.getFileName();
String fileName = fileNameChars == null ? "" : new String(fileNameChars); //$NON-NLS-1$
baseString = "IBinaryType " + fileName; //$NON-NLS-1$
}
if (this.compilationUnit != null) {
baseString = "ICompilationUnit " + this.compilationUnit.toString(); //$NON-NLS-1$
}
if (this.sourceTypes != null) {
baseString = Arrays.toString(this.sourceTypes);
}
if (this.accessRestriction != null) {
baseString += " " + this.accessRestriction.toString(); //$NON-NLS-1$
}
if (this.externalAnnotationPath != null) {
baseString += " extPath=" + this.externalAnnotationPath.toString(); //$NON-NLS-1$
}
if (this.moduleName != null) {
baseString += " module=" + String.valueOf(this.moduleName); //$NON-NLS-1$
}
return baseString;
}
/**
* Returns the associated access restriction, or null if none.
*/
public AccessRestriction getAccessRestriction() {
return this.accessRestriction;
}
public void setBinaryType(IBinaryType newType) {
this.binaryType = newType;
}
/**
* Answer the resolved binary form for the type or null if the receiver represents a compilation unit or source
* type.
*/
public IBinaryType getBinaryType() {
return this.binaryType;
}
/**
* Answer the compilation unit or null if the
* receiver represents a binary or source type.
*/
public ICompilationUnit getCompilationUnit() {
return this.compilationUnit;
}
public String getExternalAnnotationPath() {
return this.externalAnnotationPath;
}
/**
* Answer the unresolved source forms for the type or null if the
* receiver represents a compilation unit or binary type.
*
* Multiple source forms can be answered in case the originating compilation unit did contain
* several type at once. Then the first type is guaranteed to be the requested type.
*/
public ISourceType[] getSourceTypes() {
return this.sourceTypes;
}
/**
* Answer the resolved compiler binding that was late found during askForName().
*/
public ReferenceBinding getResolvedBinding() {
return this.binding;
}
/**
* Answer whether the receiver contains the resolved binary form of the type.
*/
public boolean isBinaryType() {
return this.binaryType != null;
}
/**
* Answer whether the receiver contains the compilation unit which defines the type.
*/
public boolean isCompilationUnit() {
return this.compilationUnit != null;
}
/**
* Answer whether the receiver contains the unresolved source form of the type.
*/
public boolean isSourceType() {
return this.sourceTypes != null;
}
/**
* Answer whether the receiver contains the resolved compiler binding of the type.
*/
public boolean isResolvedBinding() {
return this.binding != null;
}
public boolean ignoreIfBetter() {
return this.accessRestriction != null && this.accessRestriction.ignoreIfBetter();
}
/**
* Name of the module to which the CU in this answer is associated.
* {@code null} when associated to the unnamed module.
* @return module name or {@code null}
*/
public char[] moduleName() {
return this.moduleName;
}
/*
* Returns whether this answer is better than the other awswer.
* (accessible is better than discouraged, which is better than
* non-accessible)
*/
public boolean isBetter(NameEnvironmentAnswer otherAnswer) {
if (otherAnswer == null) return true;
if (this.accessRestriction == null) return true;
return otherAnswer.accessRestriction != null
&& this.accessRestriction.getProblemId() < otherAnswer.accessRestriction.getProblemId();
}
}
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