import eclipse 3.1 M4 compiler

[org.ibex.tool.git] / src / org / eclipse / jdt / internal / compiler / lookup / SignatureWrapper.java

diff --git a/src/org/eclipse/jdt/internal/compiler/lookup/SignatureWrapper.java b/src/org/eclipse/jdt/internal/compiler/lookup/SignatureWrapper.java
new file mode 100644 (file)
index 0000000..b4293a0
--- /dev/null
+++ b/src/org/eclipse/jdt/internal/compiler/lookup/SignatureWrapper.java
@@ -0,0 +1,68 @@
+/*******************************************************************************
+ * 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;
+
+public class SignatureWrapper {
+       public char[] signature;
+       public int start;
+       public int end;
+       public int bracket;
+
+       public SignatureWrapper(char[] signature) {
+               this.signature = signature;
+               this.start = 0;
+               this.end = this.bracket = -1;
+       }
+       public boolean atEnd() {
+               return this.start < 0 || this.start >= this.signature.length;
+       }
+       public int computeEnd() {
+               int index = this.start;
+               while (this.signature[index] == '[')
+                       index++;
+               switch (this.signature[index]) {
+                       case 'L' :
+                       case 'T' :
+                               this.end = CharOperation.indexOf(';', this.signature, this.start);
+                               if (this.bracket <= this.start) // already know it if its > start
+                                       this.bracket = CharOperation.indexOf('<', this.signature, this.start);
+               
+                               if (this.bracket > this.start && this.bracket < this.end)
+                                       this.end = this.bracket;
+                               else if (this.end == -1)
+                                       this.end = this.signature.length + 1;
+                               break;
+                       default :
+                               this.end = this.start;
+               }
+
+               this.start = this.end + 1; // skip ';'
+               return this.end;
+       }
+       public char[] nextWord() {
+               this.end = CharOperation.indexOf(';', this.signature, this.start);
+               if (this.bracket <= this.start) // already know it if its > start
+                       this.bracket = CharOperation.indexOf('<', this.signature, this.start);
+               int dot = CharOperation.indexOf('.', this.signature, this.start);
+
+               if (this.bracket > this.start && this.bracket < this.end)
+                       this.end = this.bracket;
+               if (dot > this.start && dot < this.end)
+                       this.end = dot;
+
+               return CharOperation.subarray(this.signature, this.start, this.start = this.end); // skip word
+       }
+       public String toString() {
+               return new String(this.signature) + " @ " + this.start; //$NON-NLS-1$
+       }
+}