Accommodate external binary object files

- Adorn external binary object icons
- Present symbols under external binary object resources
- Label external binary objects with filename only
- Present absent external binary objects with grey label
- Sort external binary objects by filename only

core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/model/IBinary.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2009 QNX Software Systems and others.
+ * Copyright (c) 2000, 2024 QNX Software Systems and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -11,9 +11,12 @@
  * Contributors:
  *     QNX Software Systems - Initial API and implementation
  *     Markus Schorn (Wind River Systems)
+ *     John Dallaway - Support external binary files (#630)
  *******************************************************************************/
 package org.eclipse.cdt.core.model;
 
+import org.eclipse.core.runtime.IPath;
+
 /**
  * Represents a Binary file, for example an ELF executable.
  * An ELF parser will inspect the binary.
@@ -57,4 +60,11 @@ public interface IBinary extends ICElement, IParent, IOpenable {
 	public boolean showInBinaryContainer();
 	//public IAddressFactory getAddressFactory();
 
+	/**
+	 * Returns the absolute path of the location of this binary. May be {@code null},
+	 * in case the location does not exist.
+	 * @return an absolute path to the location, or {@code null}
+	 * @since 8.4
+	 */
+	public IPath getLocation();
 }

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Archive.java

@@ -28,6 +28,7 @@
 import org.eclipse.cdt.core.model.ICElement;
 import org.eclipse.cdt.core.model.ICProject;
 import org.eclipse.cdt.internal.core.util.MementoTokenizer;
+import org.eclipse.core.filesystem.URIUtil;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
@@ -94,12 +95,12 @@ public boolean computeChildren(OpenableInfo info, IResource res) {
 				}
 				IFile file = ResourcesPlugin.getWorkspace().getRoot().getFileForLocation(objPath);
 				if (file == null) { // if object path is external to the workspace
-					// fallback to legacy behaviour
-					// TODO: support external paths in Binary class as we do in TranslationUnit
-					objPath = ar.getPath().append(objPath.lastSegment());
+					Binary binary = new Binary(this, URIUtil.toURI(objPath), obj);
+					info.addChild(binary);
+				} else {
+					Binary binary = new Binary(this, objPath, obj);
+					info.addChild(binary);
 				}
-				Binary binary = new Binary(this, objPath, obj);
-				info.addChild(binary);
 			}
 			return true;
 		}

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Binary.java

@@ -14,13 +14,15 @@
  *     Anton Leherbauer (Wind River Systems)
  *     John Dallaway - Adapt for IBinaryFile (#413)
  *     John Dallaway - Support source file lookup from relative path (#652)
+ *     John Dallaway - Add initial support for external paths (#630)
  *******************************************************************************/
 package org.eclipse.cdt.internal.core.model;
 
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.net.URI;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
@@ -43,10 +45,15 @@
 import org.eclipse.cdt.core.model.ICProject;
 import org.eclipse.cdt.internal.core.resources.ResourceLookup;
 import org.eclipse.cdt.internal.core.util.MementoTokenizer;
+import org.eclipse.cdt.utils.UNCPathConverter;
+import org.eclipse.core.filesystem.EFS;
+import org.eclipse.core.filesystem.IFileInfo;
+import org.eclipse.core.filesystem.IFileStore;
 import org.eclipse.core.filesystem.URIUtil;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.runtime.Assert;
+import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.Path;
@@ -66,6 +73,7 @@ public class Binary extends Openable implements IBinary {
 
 	private long fLastModification;
 
+	private URI location;
 	private IBinaryObject binaryObject;
 	private boolean showInBinaryContainer;
 
@@ -75,6 +83,13 @@ public Binary(ICElement parent, IFile file, IBinaryObject bin) {
 		showInBinaryContainer = determineShowInBinaryContainer(bin);
 	}
 
+	public Binary(ICElement parent, URI uri, IBinaryObject bin) {
+		super(parent, (IResource) null, uri.toString(), ICElement.C_BINARY);
+		location = uri;
+		binaryObject = bin;
+		showInBinaryContainer = determineShowInBinaryContainer(bin);
+	}
+
 	private boolean determineShowInBinaryContainer(IBinaryObject bin) {
 		BinaryFilePresentation presentation = bin.getAdapter(BinaryFilePresentation.class);
 		if (presentation != null) {
@@ -284,7 +299,7 @@ boolean computeChildren(OpenableInfo info, IResource res) throws CModelException
 				// information.  If not, fall back on information from the binary parser.
 				boolean showSourceFiles = Platform.getPreferencesService().getBoolean(CCorePlugin.PLUGIN_ID,
 						CCorePreferenceConstants.SHOW_SOURCE_FILES_IN_BINARIES, false, null);
-				if (!showSourceFiles || !addSourceFiles(info, res, obj, hash)) {
+				if (!showSourceFiles || (res == null) || !addSourceFiles(info, res, obj, hash)) {
 					ISymbol[] symbols = obj.getSymbols();
 					for (ISymbol symbol : symbols) {
 						switch (symbol.getType()) {
@@ -528,7 +543,63 @@ public boolean exists() {
 		IResource res = getResource();
 		if (res != null)
 			return res.exists();
-		return super.exists();
+		if (location != null) {
+			try {
+				IFileStore fileStore = EFS.getStore(location);
+				IFileInfo info = fileStore.fetchInfo();
+				return info.exists();
+			} catch (CoreException e) {
+				CCorePlugin.log(e);
+			}
+
+		}
+		return false;
+	}
+
+	@Override
+	public IPath getLocation() {
+		if (location == null) {
+			IFile file = getFile();
+			if (file != null) {
+				return file.getLocation();
+			} else {
+				return null;
+			}
+		}
+		return UNCPathConverter.toPath(location);
+	}
+
+	@Override
+	public URI getLocationURI() {
+		if (location == null) {
+			IFile file = getFile();
+			if (file != null) {
+				location = file.getLocationURI();
+			} else {
+				return null;
+			}
+		}
+		return location;
+	}
+
+	@Override
+	public IPath getPath() {
+		if (getFile() != null) {
+			return super.getPath();
+		}
+		IPath path = getLocation();
+		if (path != null) {
+			return path;
+		}
+		return super.getPath();
+	}
+
+	public IFile getFile() {
+		IResource res = super.getResource();
+		if (res instanceof IFile) {
+			return (IFile) res;
+		}
+		return null;
 	}
 
 	@Override

core/org.eclipse.cdt.ui/plugin.properties

@@ -1,5 +1,5 @@
 ###############################################################################
-# Copyright (c) 2003, 2023 IBM Corporation, QNX Software Systems, and others.
+# Copyright (c) 2003, 2024 IBM Corporation, QNX Software Systems, and others.
 #
 # This program and the accompanying materials
 # are made available under the terms of the Eclipse Public License 2.0
@@ -656,6 +656,8 @@ ShiftRightAction.label= &Shift Right
 ShiftLeftAction.label= S&hift Left
 
 # Decorators
+binaryFileDecorator.label = C/C++ Binary Files
+binaryFileDecorator.description = Decorates C/C++ executable, object, core and shared library files.
 indexedFilesDecorator.label = C/C++ Indexed Files
 indexedFilesDecorator.description = Decorates files indexed by C/C++ Indexer.
 translationUnitDecorator.label = C/C++ Translation Units

core/org.eclipse.cdt.ui/plugin.xml

@@ -4445,6 +4445,17 @@
             <objectClass name="org.eclipse.cdt.core.model.ITranslationUnit"/>
          </enablement>
       </decorator>
+      <decorator
+            class="org.eclipse.cdt.internal.ui.viewsupport.BinaryFileDecorator"
+            id="org.eclipse.cdt.ui.binaryFile"
+            label="%binaryFileDecorator.label"
+            lightweight="true"
+            state="true">
+         <description>%binaryFileDecorator.description</description>
+         <enablement>
+            <objectClass name="org.eclipse.cdt.core.model.IBinary"/>
+         </enablement>
+      </decorator>
       <decorator
             adaptable="true"
             class="org.eclipse.cdt.internal.ui.viewsupport.ExcludedFileDecorator"

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/CElementAdapterFactory.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2005, 2011 IBM Corporation and others.
+ * Copyright (c) 2005, 2024 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -13,6 +13,7 @@
  *     QNX Software System
  *     Anton Leherbauer (Wind River Systems)
  *     Sergey Prigogin (Google)
+ *     John Dallaway - process external binaries as C elements (#630)
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui;
 
@@ -76,11 +77,13 @@ public Object getAdapter(Object element, Class key) {
 	}
 
 	private IPropertySource getPropertySource(ICElement celement) {
-		if (celement instanceof IBinary) {
-			return new BinaryPropertySource((IBinary) celement);
-		}
 		IResource res = celement.getResource();
 		if (res != null) {
+			if (celement instanceof IBinary) {
+				// IBinary objects must have an IResource at present
+				// TODO: support external binaries as for external translation units
+				return new BinaryPropertySource((IBinary) celement);
+			}
 			if (res instanceof IFile) {
 				return new FilePropertySource((IFile) res);
 			}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/navigator/OpenCElementAction.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2023 Wind River Systems, Inc. and others.
+ * Copyright (c) 2006, 2024 Wind River Systems, Inc. and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -12,6 +12,7 @@
  *     Anton Leherbauer (Wind River Systems) - initial API and implementation
  *     Ed Swartz (Nokia)
  *     John Dallaway - do not handle absent external translation units (#563)
+ *     John Dallaway - do not handle external binaries (#630)
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui.navigator;
 
@@ -21,6 +22,7 @@
 import org.eclipse.cdt.core.model.ITranslationUnit;
 import org.eclipse.cdt.internal.ui.util.EditorUtility;
 import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.core.resources.IResource;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.jface.viewers.IStructuredSelection;
@@ -76,14 +78,27 @@ protected boolean updateSelection(IStructuredSelection selection) {
 			if (!(element instanceof ICElement) && element instanceof IAdaptable) {
 				element = ((IAdaptable) element).getAdapter(ICElement.class);
 			}
-			if (element instanceof ICElement && (element instanceof ISourceReference || element instanceof IBinary)) {
-				// do not handle absent external translation units
-				if (!(element instanceof ITranslationUnit tu) || (null != tu.getResource()) || tu.exists()) {
-					fOpenElement = (ICElement) element;
-				}
+			if ((element instanceof ICElement cElement) && canOpenCElement(cElement)) {
+				fOpenElement = (ICElement) element;
 			}
 		}
 		return fOpenElement != null || super.updateSelection(selection);
 	}
 
+	private boolean canOpenCElement(ICElement element) {
+		if (element instanceof ISourceReference sourceReference) {
+			if (null == sourceReference.getTranslationUnit()) {
+				return false; // no associated translation unit
+			}
+			// do not handle absent external translation units
+			return !(element instanceof ITranslationUnit tu) || (null != tu.getResource()) || tu.exists();
+		}
+		if (element instanceof IBinary) {
+			// do not handle external binaries
+			IResource resource = element.getResource();
+			return (null != resource) && resource.exists();
+		}
+		return false;
+	}
+
 }

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/BinaryFileDecorator.java

@@ -0,0 +1,44 @@
+/*******************************************************************************
+ * Copyright (c) 2024 John Dallaway and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     John Dallaway - initial implementation (#630)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.viewsupport;
+
+import org.eclipse.cdt.core.model.IBinary;
+import org.eclipse.jface.preference.JFacePreferences;
+import org.eclipse.jface.resource.JFaceResources;
+import org.eclipse.jface.viewers.BaseLabelProvider;
+import org.eclipse.jface.viewers.IDecoration;
+import org.eclipse.jface.viewers.ILightweightLabelDecorator;
+import org.eclipse.swt.graphics.Color;
+
+/**
+ * Decorates binary files including executable, object, core and library files
+ */
+public final class BinaryFileDecorator extends BaseLabelProvider implements ILightweightLabelDecorator {
+
+	@Override
+	public boolean isLabelProperty(Object element, String property) {
+		return false;
+	}
+
+	@Override
+	public void decorate(Object element, IDecoration decoration) {
+		// if a binary file that is not present locally
+		if (element instanceof IBinary binary && !binary.exists()) {
+			// decorate label to indicate file is absent
+			Color color = JFaceResources.getColorRegistry().get(JFacePreferences.QUALIFIER_COLOR);
+			decoration.setForegroundColor(color);
+		}
+	}
+
+}

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/CElementImageProvider.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2005, 2023 IBM Corporation and others.
+ * Copyright (c) 2005, 2024 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -13,7 +13,7 @@
  *     QNX Software System
  *     Markus Schorn (Wind River Systems)
  *     Anton Leherbauer (Wind River Systems)
- *     John Dallaway - use external file adornment (#563)
+ *     John Dallaway - use external file adornment (#563, #630)
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui.viewsupport;
 
@@ -602,6 +602,9 @@ private int computeCAdornmentFlags(ICElement element, int renderFlags) {
 						}
 					}
 				}
+				if ((element instanceof IBinary) && (null == element.getResource())) {
+					flags |= CElementImageDescriptor.EXTERNAL_FILE;
+				}
 			} catch (CModelException e) {
 			}
 		}