From 8a896c57ed29badb2bde91b150649d51536d45f9 Mon Sep 17 00:00:00 2001
From: Michi <woskimi@yahoo.de>
Date: Sun, 8 Feb 2015 16:08:27 +0100
Subject: [PATCH] Bug 459389 - [code assist] no members for deeply nested class
 templates

Change-Id: Ia6b3461325a9c489d10dd1356d46e7e6b6ee61f0
Signed-off-by: Michi <woskimi@yahoo.de>
---
 .../parser/cpp/semantics/AccessContext.java   | 19 ++++++++++++++-----
 .../text/contentassist2/CompletionTests.java  | 18 ++++++++++++++++++
 2 files changed, 32 insertions(+), 5 deletions(-)

diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/AccessContext.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/AccessContext.java
index ecfe772042c..5e68ab6bd5e 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/AccessContext.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/AccessContext.java
@@ -180,9 +180,16 @@ public class AccessContext {
 			return false;
 
 		accessLevel = getMemberAccessLevel(derivedClass, accessLevel);
-		if (owner.isSameType(derivedClass) ||
-				(derivedClass instanceof ICPPClassSpecialization &&
-						owner.equals(((ICPPClassSpecialization) derivedClass).getSpecializedBinding()))) {
+		
+		if (!(owner instanceof ICPPSpecialization)) {
+			while (derivedClass instanceof ICPPSpecialization) {
+				IBinding specialized = ((ICPPSpecialization) derivedClass).getSpecializedBinding();
+				if (specialized instanceof ICPPClassType) {
+					derivedClass = (ICPPClassType) specialized;
+				}
+			}
+		}
+		if (owner.isSameType(derivedClass)) {
 			return isAccessible(bindingVisibility, accessLevel);
 		}
 
@@ -302,8 +309,10 @@ public class AccessContext {
 		if (maxdepth > 0) {
 			for (ICPPBase cppBase : ClassTypeHelper.getBases(derived, point)) {
 				IBinding base = cppBase.getBaseClass();
-				if (!(target instanceof ICPPSpecialization) && base instanceof ICPPSpecialization) {
-					base = ((ICPPSpecialization) base).getSpecializedBinding();
+				if (!(target instanceof ICPPSpecialization)) {
+					while (base instanceof ICPPSpecialization) {
+						base = ((ICPPSpecialization) base).getSpecializedBinding();
+					}
 				}
 				if (base instanceof ICPPClassType) {
 					ICPPClassType tbase = (ICPPClassType) base;
diff --git a/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/contentassist2/CompletionTests.java b/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/contentassist2/CompletionTests.java
index 65de1caa120..017b0021eec 100644
--- a/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/contentassist2/CompletionTests.java
+++ b/core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/contentassist2/CompletionTests.java
@@ -772,6 +772,24 @@ public class CompletionTests extends AbstractContentAssistTest {
 		assertCompletionResults(fCursorOffset, expected, ID);
 	}
 
+	//	template <typename T>
+	//	struct A {
+	//		template <typename U>
+	//		struct AA {
+	//			template <typename V>
+	//			struct AAA {
+	//			};
+	//		};
+	//	};
+	//
+	//	struct B : A<B> {
+	//		AA<B>::/*cursor*/
+	//	};
+	public void testMemebersForDeeplyNestedTemplates_459389() throws Exception {
+		final String[] expected = { "AAA<typename V>" };
+		assertCompletionResults(fCursorOffset, expected, DISPLAY);
+	}
+
 	//	struct A {};
 	//
 	//	template<typename T>