From b03b2426fc26455aa7af2077a6b12146175fdd88 Mon Sep 17 00:00:00 2001
From: aclement <aclement>
Date: Mon, 22 Aug 2005 16:55:51 +0000
Subject: [PATCH] genericitds: scope can now lookup type variables when
 referenced via the alias used in the ITD

---
 .../compiler/lookup/InterTypeScope.java       | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/org.aspectj.ajdt.core/src/org/aspectj/ajdt/internal/compiler/lookup/InterTypeScope.java b/org.aspectj.ajdt.core/src/org/aspectj/ajdt/internal/compiler/lookup/InterTypeScope.java
index 82a4d7595..6ebf5dd36 100644
--- a/org.aspectj.ajdt.core/src/org/aspectj/ajdt/internal/compiler/lookup/InterTypeScope.java
+++ b/org.aspectj.ajdt.core/src/org/aspectj/ajdt/internal/compiler/lookup/InterTypeScope.java
@@ -13,16 +13,21 @@
 
 package org.aspectj.ajdt.internal.compiler.lookup;
 
+import java.util.List;
+
 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ClassScope;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding;
+import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ProblemReferenceBinding;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Scope;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding;
+import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding;
 import org.aspectj.weaver.BCException;
 
 public class InterTypeScope extends ClassScope {
 	ReferenceBinding onType;
+	List aliases;
 
 	public InterTypeScope(Scope parent, ReferenceBinding onType) {
 		super(parent, null);
@@ -31,6 +36,11 @@ public class InterTypeScope extends ClassScope {
 		this.onType = onType;
 	}
 
+	public InterTypeScope(Scope parent, ReferenceBinding rb, List list) {
+		this(parent,rb);
+		this.aliases = list;
+	}
+
 	// this method depends on the fact that BinaryTypeBinding extends SourceTypeBinding
 	private SourceTypeBinding makeSourceTypeBinding(ReferenceBinding onType) {
 		if (onType instanceof SourceTypeBinding) return (SourceTypeBinding)onType;
@@ -38,7 +48,10 @@ public class InterTypeScope extends ClassScope {
 			ReferenceBinding rb = ((ParameterizedTypeBinding)onType).type;
 			if (rb instanceof SourceTypeBinding) return (SourceTypeBinding)rb;
 			else throw new BCException("In parameterized type "+onType+", can't handle reference binding "+rb);
+		} else if (onType instanceof ProblemReferenceBinding) { 
+			return null;
 		}
+		
 		throw new BCException("can't handle: " + onType);
 	}
 
@@ -49,7 +62,21 @@ public class InterTypeScope extends ClassScope {
 	public int addDepth() {
 		return 0;
 	}
+	
 
+	public TypeVariableBinding findTypeVariable(char[] name, SourceTypeBinding sourceType) {
+		int aliased = (aliases==null?-1:aliases.indexOf(new String(name)));
+		if (aliased!=-1) {
+			if (aliased>sourceType.typeVariables.length || sourceType.typeVariables.length==0) {
+				TypeVariableBinding tvb = new TypeVariableBinding("fake".toCharArray(),null,0);
+				return tvb;
+				// error is going to be reported by someone else!
+			}
+			return sourceType.typeVariables()[aliased];
+		} else {
+		    return sourceType.getTypeVariable(name);
+		}
+	}
 	
 
 }
-- 
2.39.5