+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.jdt.internal.compiler.lookup;
-
-import org.eclipse.jdt.core.compiler.CharOperation;
-import org.eclipse.jdt.internal.compiler.util.HashtableOfPackage;
-import org.eclipse.jdt.internal.compiler.util.HashtableOfType;
-
-public class PackageBinding extends Binding implements TypeConstants {
- public char[][] compoundName;
- PackageBinding parent;
- LookupEnvironment environment;
- HashtableOfType knownTypes;
- HashtableOfPackage knownPackages;
-protected PackageBinding() {
- // for creating problem package
-}
-public PackageBinding(char[][] compoundName, PackageBinding parent, LookupEnvironment environment) {
- this.compoundName = compoundName;
- this.parent = parent;
- this.environment = environment;
- this.knownTypes = null; // initialized if used... class counts can be very large 300-600
- this.knownPackages = new HashtableOfPackage(3); // sub-package counts are typically 0-3
-}
-public PackageBinding(char[] topLevelPackageName, LookupEnvironment environment) {
- this(new char[][] {topLevelPackageName}, null, environment);
-}
-/* Create the default package.
-*/
-
-public PackageBinding(LookupEnvironment environment) {
- this(CharOperation.NO_CHAR_CHAR, null, environment);
-}
-private void addNotFoundPackage(char[] simpleName) {
- knownPackages.put(simpleName, LookupEnvironment.TheNotFoundPackage);
-}
-private void addNotFoundType(char[] simpleName) {
- if (knownTypes == null)
- knownTypes = new HashtableOfType(25);
- knownTypes.put(simpleName, LookupEnvironment.TheNotFoundType);
-}
-void addPackage(PackageBinding element) {
- knownPackages.put(element.compoundName[element.compoundName.length - 1], element);
-}
-void addType(ReferenceBinding element) {
- if (knownTypes == null)
- knownTypes = new HashtableOfType(25);
- knownTypes.put(element.compoundName[element.compoundName.length - 1], element);
-}
-/* API
-* Answer the receiver's binding type from Binding.BindingID.
-*/
-
-public final int bindingType() {
- return PACKAGE;
-}
-private PackageBinding findPackage(char[] name) {
- if (!environment.isPackage(this.compoundName, name))
- return null;
-
- char[][] subPkgCompoundName = CharOperation.arrayConcat(this.compoundName, name);
- PackageBinding subPackageBinding = new PackageBinding(subPkgCompoundName, this, environment);
- addPackage(subPackageBinding);
- return subPackageBinding;
-}
-/* Answer the subpackage named name; ask the oracle for the package if its not in the cache.
-* Answer null if it could not be resolved.
-*
-* NOTE: This should only be used when we know there is NOT a type with the same name.
-*/
-
-PackageBinding getPackage(char[] name) {
- PackageBinding binding = getPackage0(name);
- if (binding != null) {
- if (binding == LookupEnvironment.TheNotFoundPackage)
- return null;
- else
- return binding;
- }
- if ((binding = findPackage(name)) != null)
- return binding;
-
- // not found so remember a problem package binding in the cache for future lookups
- addNotFoundPackage(name);
- return null;
-}
-/* Answer the subpackage named name if it exists in the cache.
-* Answer theNotFoundPackage if it could not be resolved the first time
-* it was looked up, otherwise answer null.
-*
-* NOTE: Senders must convert theNotFoundPackage into a real problem
-* package if its to returned.
-*/
-
-PackageBinding getPackage0(char[] name) {
- return knownPackages.get(name);
-}
-/* Answer the type named name; ask the oracle for the type if its not in the cache.
-* Answer a NotVisible problem type if the type is not visible from the invocationPackage.
-* Answer null if it could not be resolved.
-*
-* NOTE: This should only be used by source types/scopes which know there is NOT a
-* package with the same name.
-*/
-
-ReferenceBinding getType(char[] name) {
- ReferenceBinding binding = getType0(name);
- if (binding == null) {
- if ((binding = environment.askForType(this, name)) == null) {
- // not found so remember a problem type binding in the cache for future lookups
- addNotFoundType(name);
- return null;
- }
- }
-
- if (binding == LookupEnvironment.TheNotFoundType)
- return null;
- if (binding instanceof UnresolvedReferenceBinding)
- binding = ((UnresolvedReferenceBinding) binding).resolve(environment);
- if (binding.isNestedType())
- return new ProblemReferenceBinding(name, InternalNameProvided);
- return binding;
-}
-/* Answer the type named name if it exists in the cache.
-* Answer theNotFoundType if it could not be resolved the first time
-* it was looked up, otherwise answer null.
-*
-* NOTE: Senders must convert theNotFoundType into a real problem
-* reference type if its to returned.
-*/
-
-ReferenceBinding getType0(char[] name) {
- if (knownTypes == null)
- return null;
- return knownTypes.get(name);
-}
-/* Answer the package or type named name; ask the oracle if it is not in the cache.
-* Answer null if it could not be resolved.
-*
-* When collisions exist between a type name & a package name, answer the type.
-* Treat the package as if it does not exist... a problem was already reported when the type was defined.
-*
-* NOTE: no visibility checks are performed.
-* THIS SHOULD ONLY BE USED BY SOURCE TYPES/SCOPES.
-*/
-
-public Binding getTypeOrPackage(char[] name) {
- ReferenceBinding typeBinding = getType0(name);
- if (typeBinding != null && typeBinding != LookupEnvironment.TheNotFoundType) {
- if (typeBinding instanceof UnresolvedReferenceBinding)
- typeBinding = ((UnresolvedReferenceBinding) typeBinding).resolve(environment);
- if (typeBinding.isNestedType())
- return new ProblemReferenceBinding(name, InternalNameProvided);
- return typeBinding;
- }
-
- PackageBinding packageBinding = getPackage0(name);
- if (packageBinding != null && packageBinding != LookupEnvironment.TheNotFoundPackage)
- return packageBinding;
-
- if (typeBinding == null) { // have not looked for it before
- if ((typeBinding = environment.askForType(this, name)) != null) {
- if (typeBinding.isNestedType())
- return new ProblemReferenceBinding(name, InternalNameProvided);
- return typeBinding;
- }
-
- // Since name could not be found, add a problem binding
- // to the collections so it will be reported as an error next time.
- addNotFoundType(name);
- }
-
- if (packageBinding == null) { // have not looked for it before
- if ((packageBinding = findPackage(name)) != null)
- return packageBinding;
- addNotFoundPackage(name);
- }
-
- return null;
-}
-public char[] readableName() /*java.lang*/ {
- return CharOperation.concatWith(compoundName, '.');
-}
-public String toString() {
- if (compoundName == CharOperation.NO_CHAR_CHAR)
- return "The Default Package"; //$NON-NLS-1$
- else
- return "package " + ((compoundName != null) ? CharOperation.toString(compoundName) : "UNNAMED"); //$NON-NLS-1$ //$NON-NLS-2$
-}
-}
projects / org.ibex.tool.git / blobdiff