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[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / lookup / TypeBinding.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/TypeBinding.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/TypeBinding.java
new file mode 100644 (file)
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+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/TypeBinding.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2003 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 net.sourceforge.phpdt.internal.compiler.lookup;
+
+import net.sourceforge.phpdt.core.compiler.CharOperation;
+
+/*
+ * Not all fields defined by this type (& its subclasses) are initialized when it is created.
+ * Some are initialized only when needed.
+ *
+ * Accessors have been provided for some public fields so all TypeBindings have the same API...
+ * but access public fields directly whenever possible.
+ * Non-public fields have accessors which should be used everywhere you expect the field to be initialized.
+ *
+ * null is NOT a valid value for a non-public field... it just means the field is not initialized.
+ */
+abstract public class TypeBinding extends Binding implements BaseTypes, TagBits, TypeConstants, TypeIds {
+       public int id = NoId;
+       public int tagBits = 0; // See values in the interface TagBits below
+/* API
+ * Answer the receiver's binding type from Binding.BindingID.
+ */
+
+public final int bindingType() {
+       return TYPE;
+}
+/* Answer true if the receiver can be instantiated
+ */
+
+public boolean canBeInstantiated() {
+       return !isBaseType();
+}
+/* Answer the receiver's constant pool name.
+ *
+ * NOTE: This method should only be used during/after code gen.
+ */
+
+public abstract char[] constantPoolName(); /* java/lang/Object */
+String debugName() {
+       return new String(readableName());
+}
+/*
+ * Answer the receiver's dimensions - 0 for non-array types
+ */
+public int dimensions(){
+       return 0;
+}
+public abstract PackageBinding getPackage();
+/* Answer true if the receiver is an array
+*/
+
+public final boolean isArrayType() {
+       return (tagBits & IsArrayType) != 0;
+}
+/* Answer true if the receiver is a base type
+*/
+
+public final boolean isBaseType() {
+       return (tagBits & IsBaseType) != 0;
+}
+public boolean isClass() {
+       return false;
+}
+/* Answer true if the receiver type can be assigned to the argument type (right)
+*/
+       
+public abstract boolean isCompatibleWith(TypeBinding right);
+/* Answer true if the receiver's hierarchy has problems (always false for arrays & base types)
+*/
+
+public final boolean isHierarchyInconsistent() {
+       return (tagBits & HierarchyHasProblems) != 0;
+}
+public boolean isInterface() {
+       return false;
+}
+public final boolean isNumericType() {
+       switch (id) {
+               case T_int :
+               case T_float :
+               case T_double :
+               case T_short :
+               case T_byte :
+               case T_long :
+               case T_char :
+                       return true;
+               default :
+                       return false;
+       }
+}
+
+public TypeBinding leafComponentType(){
+       return this;
+}
+
+/**
+ * Answer the qualified name of the receiver's package separated by periods
+ * or an empty string if its the default package.
+ *
+ * For example, {java.util.Hashtable}.
+ */
+
+public char[] qualifiedPackageName() {
+       PackageBinding packageBinding = getPackage();
+       return packageBinding == null  || packageBinding.compoundName == CharOperation.NO_CHAR_CHAR
+               ? CharOperation.NO_CHAR
+               : packageBinding.readableName();
+}
+/**
+* Answer the source name for the type.
+* In the case of member types, as the qualified name from its top level type.
+* For example, for a member type N defined inside M & A: "A.M.N".
+*/
+
+public abstract char[] qualifiedSourceName();
+/* Answer the receiver's signature.
+*
+* Arrays & base types do not distinguish between signature() & constantPoolName().
+*
+* NOTE: This method should only be used during/after code gen.
+*/
+
+public char[] signature() {
+       return constantPoolName();
+}
+public abstract char[] sourceName();
+}