207320: apply fix and add regression tests

core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/internal/index/tests/IndexCPPBindingResolutionBugs.java

@@ -27,10 +27,12 @@ import org.eclipse.cdt.core.dom.ast.cpp.ICPPBase;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassTemplate;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassType;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPField;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPFunction;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPMethod;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPNamespace;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPSpecialization;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateDefinition;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateInstance;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateParameter;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPVariable;
 import org.eclipse.cdt.core.index.IIndexBinding;
@@ -63,6 +65,30 @@ public class IndexCPPBindingResolutionBugs extends IndexBindingResolutionTestBas
 		setStrategy(new SinglePDOMTestStrategy(true));
 	}
 	
+	//	template <class T>
+	//	inline void testTemplate(T& aRef);
+	//
+	//	class Temp {
+	//	};
+
+	//	#include <stdio.h>
+	//	#include <stdlib.h>
+	//	#include "test.h"
+	//	int main(void) {
+	//	        puts("Hello World!!!");
+	//
+	//	        Temp testFile;
+	//	        testTemplate(testFile);
+	//
+	//	        return EXIT_SUCCESS;
+	//	}
+	public void testBug207320() {
+		IBinding b0= getBindingFromASTName("testTemplate(", 12);
+		assertInstance(b0, ICPPFunction.class);
+		assertInstance(b0, ICPPTemplateInstance.class);
+	}
+
+	
 	//	class testdef{
 	//
 	//	public:

core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/selection/CPPSelectionTestsAnyIndexer.java

@@ -132,6 +132,40 @@ public abstract class CPPSelectionTestsAnyIndexer extends BaseSelectionTestsInde
         assertEquals(9, ((ASTNode)node).getLength());
     }
     
+    //	template <class T>
+	//	inline void testTemplate(T& aRef);
+	//
+	//	class Temp {
+	//	};
+
+	//	#include <stdio.h>
+	//	#include <stdlib.h>
+	//	#include "test.h"
+	//	int main(void) {
+	//	        puts("Hello World!!!");
+	//
+	//	        Temp testFile;
+	//	        testTemplate(testFile);
+	//
+	//	        return EXIT_SUCCESS;
+	//	}
+	public void testBug207320() throws Exception {
+		StringBuffer[] buffers= getContents(2);
+        String hcode= buffers[0].toString();
+        String scode= buffers[1].toString();
+        IFile hfile = importFile("test.h", hcode); 
+        IFile file = importFile("test.cpp", scode); 
+        TestSourceReader.waitUntilFileIsIndexed(index, file, MAX_WAIT_TIME);
+        
+        int hoffset= hcode.indexOf("testTemplate"); 
+        int soffset = scode.indexOf("testTemplate"); 
+        IASTNode def = testF3(file, soffset+2);
+        assertTrue(def instanceof IASTName);
+        assertEquals(((IASTName)def).toString(), "testTemplate"); //$NON-NLS-1$
+        assertEquals(((ASTNode)def).getOffset(), hoffset);
+        assertEquals(((ASTNode)def).getLength(), 12);
+	}
+    
     // // the header
     // extern int MyInt;       // MyInt is in another file
     // extern const int MyConst;   // MyConst is in another file
@@ -227,7 +261,7 @@ public abstract class CPPSelectionTestsAnyIndexer extends BaseSelectionTestsInde
     
     // #include "testBasicTemplateInstance.h"
     // N::AAA<int> a;
-	public void _testBasicTemplateInstance() throws Exception{
+	public void testBasicTemplateInstance_207320() throws Exception{
         StringBuffer[] buffers= getContents(2);
         String hcode= buffers[0].toString();
         String scode= buffers[1].toString();
@@ -235,7 +269,6 @@ public abstract class CPPSelectionTestsAnyIndexer extends BaseSelectionTestsInde
         IFile file = importFile("testBasicTemplateInstance.cpp", scode); 
         TestSourceReader.waitUntilFileIsIndexed(index, file, MAX_WAIT_TIME);
         
-        
         int hoffset= hcode.indexOf("AAA"); 
         int soffset = scode.indexOf("AAA<int>"); //$NON-NLS-1$
         IASTNode decl1 = testF3(file, soffset, 3);

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/search/actions/OpenDeclarationsAction.java

@@ -39,6 +39,7 @@ import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
 import org.eclipse.cdt.core.dom.ast.IBinding;
 import org.eclipse.cdt.core.dom.ast.IProblemBinding;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPMethod;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateInstance;
 import org.eclipse.cdt.core.index.IIndex;
 import org.eclipse.cdt.core.index.IIndexManager;
 import org.eclipse.cdt.core.index.IIndexName;
@@ -130,8 +131,14 @@ public class OpenDeclarationsAction extends SelectionParseAction {
 				if (binding != null && !(binding instanceof IProblemBinding)) {
 					IName[] declNames = findNames(fIndex, ast, isDefinition, binding);
 					if (declNames.length == 0) {
-						// bug 86829, handle implicit methods.
+						if(binding instanceof ICPPTemplateInstance) {
-						if (binding instanceof ICPPMethod) {
+							// bug 207320, handle template instances
+							IBinding definition= ((ICPPTemplateInstance)binding).getTemplateDefinition();
+							if(definition != null && !(definition instanceof IProblemBinding)) {
+								declNames = findNames(fIndex, ast, true, definition);
+							}
+						} else if (binding instanceof ICPPMethod) {
+							// bug 86829, handle implicit methods.
 							ICPPMethod method= (ICPPMethod) binding;
 							if (method.isImplicit()) {
 								try {