Follow up for using declarations, bug 203385.

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

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2007 Symbian Software Systems and others.
+ * Copyright (c) 2007, 2008 Symbian Software Systems and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -155,6 +155,7 @@ public abstract class IndexCPPBindingResolutionTest extends IndexBindingResoluti
 	//     class B {};
 	// }
 
+	// #include "header.h"
 	// b::A aa;
 	// b::B bb;
 	public void testUsingTypeDirective_177917_2() {

core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/internal/pdom/tests/NamespaceTests.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2007 IBM Corporation.
+ * Copyright (c) 2006, 2008 IBM Corporation.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -219,9 +219,7 @@ public class NamespaceTests extends PDOMTestBase {
 		IName[] decls = pdom.findNames(variable1, IIndex.FIND_DECLARATIONS);
 		assertEquals(0, decls.length);
 		
-		//TODO: should this be 2?
-		//Doug: Not sure but we're at one now...
 		IName[] refs = pdom.findNames(variable1, IIndex.FIND_REFERENCES);
-		assertEquals(1, refs.length);	
+		assertEquals(2, refs.length);	
 	}
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/ASTInternal.java

@@ -159,4 +159,40 @@ public class ASTInternal {
 		}
 		return filePath;
 	}
+
+	public static String getDeclaredInOneFileOnly(IBinding binding) {
+		IASTNode[] decls;
+		IASTNode def;
+		if (binding instanceof ICPPInternalBinding) {
+			ICPPInternalBinding ib= (ICPPInternalBinding) binding;
+			decls= ib.getDeclarations();
+			def= ib.getDefinition();
+		}
+		else if (binding instanceof ICInternalBinding) {
+			ICInternalBinding ib= (ICInternalBinding) binding;
+			decls= ib.getDeclarations();
+			def= ib.getDefinition();
+		}
+		else {
+			return null;
+		}
+		String filePath= null;
+		if (def != null) {
+			filePath= def.getContainingFilename();
+		}
+		if (decls != null) {
+			for (int i = 0; i < decls.length; i++) {
+				final IASTNode node= decls[i];
+				if (node != null) {
+					final String fn = node.getContainingFilename();
+					if (filePath == null) {
+						filePath= fn;
+					} else if (!filePath.equals(fn)) {
+						return null;
+					}
+				}
+			}
+		}
+		return filePath;
+	}
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/index/CIndex.java

@@ -549,34 +549,6 @@ public class CIndex implements IIndex {
 		}
 	}
 	
-	public String getFileLocalScopeQualifier(IIndexFileLocation loc) {
-		return new String(getFileLocalScopeQualifier(loc.getFullPath()));
-	}
-
-	public static char[] getFileLocalScopeQualifier(String fullPath) {
-		char[] fname= fullPath.toCharArray();
-		int fnamestart= findFileNameStart(fname);
-		StringBuffer buf= new StringBuffer();
-		buf.append('{');
-		buf.append(fname, fnamestart, fname.length-fnamestart);
-		buf.append(':');
-		buf.append(fullPath.hashCode());
-		buf.append('}');
-		fname= buf.toString().toCharArray();
-		return fname;
-	}
-	
-	private static int findFileNameStart(char[] fname) {
-		for (int i= fname.length-2; i>=0; i--) {
-			switch (fname[i]) {
-			case '/':
-			case '\\':
-				return i+1;
-			}
-		}
-		return 0;
-	}
-
 	public IIndexFileSet createFileSet() {
 		return new IndexFileSet();
 	}

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/PDOMBinding.java

@@ -86,7 +86,7 @@ public abstract class PDOMBinding extends PDOMNamedNode implements IIndexFragmen
 		return record;
 	}
 
-	public boolean hasDeclaration() throws CoreException {
+	public final boolean hasDeclaration() throws CoreException {
 		Database db = pdom.getDB();
 		return db.getInt(record + FIRST_DECL_OFFSET) != 0
 			|| db.getInt(record + FIRST_DEF_OFFSET) != 0;

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/PDOMLinkage.java

@@ -35,6 +35,7 @@ import org.eclipse.cdt.core.dom.ast.IType;
 import org.eclipse.cdt.core.dom.ast.IVariable;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassScope;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPDeferredTemplateInstance;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPDelegate;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPNamespaceAlias;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPNamespaceScope;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPSpecialization;
@@ -42,7 +43,6 @@ 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.ICPPTemplateScope;
-import org.eclipse.cdt.core.dom.ast.cpp.ICPPUsingDeclaration;
 import org.eclipse.cdt.core.index.IIndexBinding;
 import org.eclipse.cdt.core.index.IIndexLinkage;
 import org.eclipse.cdt.internal.core.Util;
@@ -259,6 +259,11 @@ public abstract class PDOMLinkage extends PDOMNamedNode implements IIndexLinkage
 			if (binding instanceof ICPPTemplateInstance) {
 				scopeBinding = ((ICPPTemplateInstance)binding).getTemplateDefinition();
 			} else {
+				// in case this is a delegate the scope of the delegate can be different to the
+				// scope of the delegating party (e.g. using-declarations)
+				while (binding instanceof ICPPDelegate && !(binding instanceof ICPPNamespaceAlias)) {
+					binding= ((ICPPDelegate) binding).getBinding();
+				}
 				IScope scope = binding.getScope();
 				if (scope == null) {
 					if (binding instanceof ICPPDeferredTemplateInstance) {
@@ -359,11 +364,6 @@ public abstract class PDOMLinkage extends PDOMNamedNode implements IIndexLinkage
 				} else if (binding instanceof IFunction) {
 					IFunction f= (IFunction) binding;
 					isFileLocal= ASTInternal.isStatic(f, false);
-				} else if ((binding instanceof ICPPUsingDeclaration ||
-						binding instanceof ICPPNamespaceAlias) && binding.getScope() == null) {
-					// Using declarations and namespace aliases in global scope are restricted
-					// to the containing file.
-					isFileLocal= true;
 				} 
 
 				if (isFileLocal) {

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/PDOMName.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2005, 2007 QNX Software Systems and others.
+ * Copyright (c) 2005, 2008 QNX Software Systems and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -17,6 +17,7 @@ import java.util.ArrayList;
 import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.core.dom.ast.IASTFileLocation;
 import org.eclipse.cdt.core.dom.ast.IASTName;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPUsingDeclaration;
 import org.eclipse.cdt.core.index.IIndexFile;
 import org.eclipse.cdt.core.index.IIndexName;
 import org.eclipse.cdt.internal.core.index.IIndexFragment;
@@ -64,13 +65,7 @@ public final class PDOMName implements IIndexFragmentName, IASTFileLocation {
 		record = db.malloc(RECORD_SIZE);
 
 		// What kind of name are we
-		int flags = 0;
-		if (name.isDefinition())
-			flags = IS_DEFINITION;
-		else if (name.isDeclaration())
-			flags = IS_DECLARATION;
-		else 
-			flags = IS_REFERENCE;
+		int flags= getRoleOfName(name);
 		
 		flags |= binding.getAdditionalNameFlags(flags, name);
 		db.putByte(record + FLAGS, (byte) flags);
@@ -103,6 +98,21 @@ public final class PDOMName implements IIndexFragmentName, IASTFileLocation {
 		db.putShort(record + NODE_LENGTH_OFFSET, (short) fileloc.getNodeLength());
 	}
 
+	private int getRoleOfName(IASTName name) {
+		if (name.isDefinition()) {
+			return IS_DEFINITION;
+		}  
+		if (name.isDeclaration()) {
+			return IS_DECLARATION;
+		} 
+		
+		// special case a using-declaration is a declaration and a reference at the same time.
+		if (name.getBinding() instanceof ICPPUsingDeclaration) {
+			return IS_DEFINITION;
+		}
+		return IS_REFERENCE;
+	}
+	
 	public PDOMName(PDOM pdom, int nameRecord) {
 		this.pdom = pdom;
 		this.record = nameRecord;
@@ -350,7 +360,7 @@ public final class PDOMName implements IIndexFragmentName, IASTFileLocation {
 	}
 
 	public IIndexName[] getEnclosedNames() throws CoreException {
-		ArrayList result= new ArrayList();
+		ArrayList<PDOMName> result= new ArrayList<PDOMName>();
 		PDOMName name= getNextInFile();
 		while (name != null) {
 			if (name.getEnclosingDefinitionRecord() == record) {
@@ -358,6 +368,6 @@ public final class PDOMName implements IIndexFragmentName, IASTFileLocation {
 			}
 			name= name.getNextInFile();
 		}
-		return (IIndexName[]) result.toArray(new IIndexName[result.size()]);
+		return result.toArray(new PDOMName[result.size()]);
 	}
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPLinkage.java

@@ -58,10 +58,12 @@ import org.eclipse.cdt.core.dom.ast.cpp.ICPPVariable;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTCompositeTypeSpecifier.ICPPASTBaseSpecifier;
 import org.eclipse.cdt.core.dom.ast.gnu.cpp.IGPPBasicType;
 import org.eclipse.cdt.internal.core.Util;
+import org.eclipse.cdt.internal.core.dom.parser.ASTInternal;
 import org.eclipse.cdt.internal.core.dom.parser.ProblemBinding;
 import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPBlockScope;
 import org.eclipse.cdt.internal.core.index.IIndexCPPBindingConstants;
 import org.eclipse.cdt.internal.core.pdom.PDOM;
+import org.eclipse.cdt.internal.core.pdom.WritablePDOM;
 import org.eclipse.cdt.internal.core.pdom.db.IBTreeComparator;
 import org.eclipse.cdt.internal.core.pdom.dom.IPDOMMemberOwner;
 import org.eclipse.cdt.internal.core.pdom.dom.PDOMASTAdapter;
@@ -785,6 +787,16 @@ class PDOMCPPLinkage extends PDOMLinkage implements IIndexCPPBindingConstants {
 		if (binding instanceof ICPPMethod) {
 			return null;
 		}
+		if (binding instanceof ICPPUsingDeclaration || binding instanceof ICPPNamespaceAlias) {
+			if (pdom instanceof WritablePDOM) {
+				final WritablePDOM wpdom= (WritablePDOM) pdom;
+				String path= ASTInternal.getDeclaredInOneFileOnly(binding);
+				if (path != null) {
+					return wpdom.getFileForASTPath(getLinkageID(), path);
+				}
+			}
+			return null;
+		}
 		return super.getLocalToFile(binding);
 	}
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPUsingDeclaration.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2007 Google, Inc and others.
+ * Copyright (c) 2008 Google, Inc and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -33,10 +33,13 @@ import org.eclipse.core.runtime.CoreException;
  * @see ICPPUsingDeclaration
  */
 class PDOMCPPUsingDeclaration extends PDOMCPPBinding implements	ICPPUsingDeclaration {
+	@SuppressWarnings("static-access")
 	private static final int TARGET_BINDING = PDOMCPPBinding.RECORD_SIZE + 0;
 	// Using declarations for functions may have multiple delegates. We model such case
 	// by creating a chain of PDOMCPPUsingDeclaration objects linked by NEXT_DELEGATE field.
+	@SuppressWarnings("static-access")
 	private static final int NEXT_DELEGATE = PDOMCPPBinding.RECORD_SIZE + 4;
+	@SuppressWarnings({ "hiding", "static-access" })
 	protected static final int RECORD_SIZE = PDOMCPPBinding.RECORD_SIZE + 8;
 	private ICPPDelegate[] delegates;
 	
@@ -116,10 +119,4 @@ class PDOMCPPUsingDeclaration extends PDOMCPPBinding implements	ICPPUsingDeclara
 		}
 		return null;
 	}
-
-	public boolean hasDeclaration() throws CoreException {
-		// TODO(sprigogin) I'm not sure if returning unconditional true is legitimate,
-		// but I couldn't figure out a better way to satisfy DeclaredBindingsFilter#acceptBinding.
-		return true;
-	}
 }