first scanner /parser copied from the jdt java version

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

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/BaseTypeBinding.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/BaseTypeBinding.java
new file mode 100644 (file)
index 0000000..a7cc33d
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/lookup/BaseTypeBinding.java
@@ -0,0 +1,155 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v0.5 
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v05.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ ******************************************************************************/
+package net.sourceforge.phpdt.internal.compiler.lookup;
+
+public final class BaseTypeBinding extends TypeBinding {
+       public char[] simpleName;
+       private char [] constantPoolName;
+BaseTypeBinding(int id, char[] name, char[] constantPoolName) {
+       this.tagBits |= IsBaseType;
+       this.id = id;
+       this.simpleName = name;
+       this.constantPoolName = constantPoolName;
+}
+/* Answer the receiver's constant pool name.
+*/
+
+public char[] constantPoolName() {
+       return constantPoolName;
+}
+public PackageBinding getPackage() {
+       return null;
+}
+/* Answer true if the receiver type can be assigned to the argument type (right)
+*/
+
+final boolean isCompatibleWith(TypeBinding right) {
+       if (this == right)
+               return true;
+       if (!right.isBaseType())
+               return this == NullBinding;
+
+       switch (right.id) {
+               case T_boolean :
+               case T_byte :
+               case T_char :
+                       return false;
+               case T_double :
+                       switch (id) {
+                               case T_byte :
+                               case T_char :
+                               case T_short :
+                               case T_int :
+                               case T_long :
+                               case T_float :
+                                       return true;
+                               default :
+                                       return false;
+                       }
+               case T_float :
+                       switch (id) {
+                               case T_byte :
+                               case T_char :
+                               case T_short :
+                               case T_int :
+                               case T_long :
+                                       return true;
+                               default :
+                                       return false;
+                       }
+               case T_long :
+                       switch (id) {
+                               case T_byte :
+                               case T_char :
+                               case T_short :
+                               case T_int :
+                                       return true;
+                               default :
+                                       return false;
+                       }
+               case T_int :
+                       switch (id) {
+                               case T_byte :
+                               case T_char :
+                               case T_short :
+                                       return true;
+                               default :
+                                       return false;
+                       }
+               case T_short :
+                       return (id == T_byte);
+       }
+       return false;
+}
+public static final boolean isNarrowing(int left, int right) {
+       //can "left" store a "right" using some narrowing conversion
+       //(is left smaller than right)
+
+       switch (left) {
+               case T_boolean :
+                       return right == T_boolean;
+               case T_char :
+               case T_byte :
+                       if (right == T_byte) return true;
+               case T_short :
+                       if (right == T_short) return true;
+                       if (right == T_char) return true;
+               case T_int :
+                       if (right == T_int) return true;
+               case T_long :
+                       if (right == T_long) return true;
+               case T_float :
+                       if (right == T_float) return true;
+               case T_double :
+                       if (right == T_double) return true;
+               default :
+                       return false;
+       }
+}
+public static final boolean isWidening(int left, int right) {
+       //can "left" store a "right" using some widening conversion
+       //(is left "bigger" than right)
+
+       switch (left) {
+               case T_boolean :
+                       return right == T_boolean;
+               case T_char :
+                       return right == T_char;
+               case T_double :
+                       if (right == T_double) return true;
+               case T_float :
+                       if (right == T_float) return true;
+               case T_long :
+                       if (right == T_long) return true;
+               case T_int :
+                       if (right == T_int) return true;
+                       if (right == T_char) return true;
+               case T_short :
+                       if (right == T_short) return true;
+               case T_byte :
+                       if (right == T_byte) return true;
+               default :
+                       return false;
+       }
+}
+public char[] qualifiedSourceName() {
+       return simpleName;
+}
+public char[] readableName() {
+       return simpleName;
+}
+public char[] sourceName() {
+       return simpleName;
+}
+public String toString() {
+       return new String(constantPoolName) + " (id=" + id + ")"; //$NON-NLS-1$ //$NON-NLS-2$
+}
+}