From 104608964f760a3c58b020079c2e31edc84a128e Mon Sep 17 00:00:00 2001
From: acolyer <acolyer>
Date: Fri, 8 Jul 2005 10:25:01 +0000
Subject: [PATCH] support for generics and type variables

---
 .../aspectj/weaver/bcel/BcelObjectType.java   | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/weaver/src/org/aspectj/weaver/bcel/BcelObjectType.java b/weaver/src/org/aspectj/weaver/bcel/BcelObjectType.java
index 21f3d766a..0ce8c6e32 100644
--- a/weaver/src/org/aspectj/weaver/bcel/BcelObjectType.java
+++ b/weaver/src/org/aspectj/weaver/bcel/BcelObjectType.java
@@ -38,9 +38,11 @@ import org.aspectj.weaver.ReferenceType;
 import org.aspectj.weaver.ResolvedMember;
 import org.aspectj.weaver.ResolvedPointcutDefinition;
 import org.aspectj.weaver.ResolvedTypeX;
+import org.aspectj.weaver.TypeVariable;
 import org.aspectj.weaver.TypeX;
 import org.aspectj.weaver.WeaverStateInfo;
 import org.aspectj.weaver.AjcMemberMaker;
+import org.aspectj.weaver.World;
 import org.aspectj.weaver.patterns.PerClause;
 
 
@@ -57,6 +59,7 @@ public class BcelObjectType extends AbstractReferenceTypeDelegate {
     private ResolvedMember[] methods = null;
     private ResolvedTypeX[] annotationTypes = null;
     private AnnotationX[] annotations = null;
+    private TypeVariable[] typeVars = null;
 
     // track unpackAttribute. In some case (per clause inheritance) we encounter
     // unpacked state when calling getPerClause
@@ -121,6 +124,32 @@ public class BcelObjectType extends AbstractReferenceTypeDelegate {
     	resetState();
     }
     
+    /**
+     * Return true if this is a generic type (has one or more type variables
+     * in its signature).
+     */
+    public boolean isGeneric() {
+    	return javaClass.getGenericSignature() != null;
+    }
+    
+    
+    public TypeVariable[] getTypeVariables() {
+    	if (!isGeneric()) return new TypeVariable[0];
+    	
+    	if (typeVars == null) {
+	    	Signature.ClassSignature classSig = javaClass.getGenericClassTypeSignature();
+	    	typeVars = new TypeVariable[classSig.formalTypeParameters.length];
+	    	for (int i = 0; i < typeVars.length; i++) {
+				Signature.FormalTypeParameter ftp = classSig.formalTypeParameters[i];
+				typeVars[i] = BcelGenericSignatureToTypeXConverter.formalTypeParameter2TypeVariable(
+						ftp, 
+						classSig.formalTypeParameters,
+						getResolvedTypeX().getWorld());
+			}
+    	}
+    	return typeVars;
+    }
+    
     public int getModifiers() {
         return javaClass.getAccessFlags();
     }
-- 
2.39.5