fix #31 / display callstack for multiple location warnings

com.googlecode.cppcheclipse.core/src/com/googlecode/cppcheclipse/core/Problem.java

@@ -18,7 +18,7 @@
 public class Problem implements Cloneable {
 	private static final String DELIMITER = ";";
 
-	private final String id, message, category;
+	private final String id, message, category, stack;
 	private final int lineNumber;
 	private final File file; // either absolute or relative filename (to
 								// project), maybe null for problem profiles or
@@ -33,7 +33,7 @@ public class Problem implements Cloneable {
 	 * Constructor is called for default problems (in problem profiles).
 	 */
 	public Problem(String id, String message, String category) {
-		this(id, message, category, null, null, -1);
+		this(id, message, category, null, null, -1, "");
 	}
 
 	/**
@@ -49,13 +49,14 @@ public Problem(String id, String message, String category) {
 	 *            (might be 0 for non line-specific problems)
 	 */
 	public Problem(String id, String message, String category, File file,
-			IProject project, int line) {
+			IProject project, int line, String stack) {
 		this.id = id;
 		this.message = message;
 		this.category = category;
 		this.lineNumber = line;
 		this.file = file;
 		this.project = project;
+		this.stack = stack;
 		setToDefault();
 	}
 
@@ -76,6 +77,10 @@ public String getMessage() {
 	public String getCategory() {
 		return category;
 	}
+
+	public String getStack() {
+		return stack;
+	}
 
 	public ProblemSeverity getSeverity() {
 		return severity;

com.googlecode.cppcheclipse.core/src/com/googlecode/cppcheclipse/core/command/CppcheckCommand.java

@@ -38,7 +38,7 @@ public class CppcheckCommand extends AbstractCppcheckCommand {
 	private final static String DELIMITER = ";";
 	private final static String ERROR_FORMAT = "{file}" + DELIMITER + "{line}"
 			+ DELIMITER + "{severity}" + DELIMITER + "{id}" + DELIMITER
-			+ "{message}";
+			+ "{message}" + DELIMITER + "{callstack}";
 	private final static String[] DEFAULT_ARGUMENTS = { "--template="
 			+ ERROR_FORMAT };
 
@@ -322,10 +322,10 @@ public static void parseResultLines(IProject project,
 	}
 
 	public static Problem parseResult(String line, IProject project) {
-		String[] lineParts = line.split(DELIMITER, 5);
-		if (lineParts.length < 5) {
+		String[] lineParts = line.split(DELIMITER, 6);
+		if (lineParts.length < 6) {
 			throw new IllegalArgumentException("Not enough tokens in line '"
-					+ line + "'. Expected 5 tokens but got " + lineParts.length);
+					+ line + "'. Expected 6 tokens but got " + lineParts.length);
 		}
 
 		/**
@@ -352,8 +352,9 @@ public static Problem parseResult(String line, IProject project) {
 			String severity = lineParts[2];
 			String id = lineParts[3];
 			String message = lineParts[4];
+			String stack = lineParts[5];
 			return new Problem(id, message, severity, filename, project,
-					lineNumber);
+					lineNumber, stack);
 
 		} catch (NumberFormatException e2) {
 			throw new IllegalArgumentException(

com.googlecode.cppcheclipse.ui/plugin.xml

@@ -38,6 +38,7 @@
 		<attribute name="file" />
 		<attribute name="originalLineNumber" />
 		<attribute name="problemId" />
+		<attribute name="stack" />
 	</extension>
 
     <extension point="org.eclipse.ui.commands">

com.googlecode.cppcheclipse.ui/src/com/googlecode/cppcheclipse/ui/marker/ProblemReporter.java

@@ -23,6 +23,7 @@ public class ProblemReporter implements IProblemReporter {
 	public static final String ATTRIBUTE_ID = "problemId"; //$NON-NLS-1$
 	public static final String ATTRIBUTE_ORIGINAL_LINE_NUMBER = "originalLineNumber"; //$NON-NLS-1$
 	public static final String ATTRIBUTE_FILE = "file"; //$NON-NLS-1$
+	public static final String ATTRIBUTE_STACK = "stack"; //$NON-NLS-1$
 
 	public ProblemReporter() {
 	}
@@ -53,13 +54,13 @@ public void reportProblem(Problem problem) throws CoreException {
 			// for each resource
 			reportProblem(resource, completeMessage, problem
 					.getSeverity().intValue(), lineNumber, problem.getId(),
-					problem.getFile(), problem.getLineNumber());
+					problem.getFile(), problem.getLineNumber(), problem.getStack());
 		}
 	}
 
 	private void reportProblem(IResource resource, String message,
 			int severity, int lineNumber, String id, File file,
-			int originalLineNumber) throws CoreException {
+			int originalLineNumber, String stack) throws CoreException {
 		// TODO: open external file, see
 		// https://bugs.eclipse.org/bugs/show_bug.cgi?id=151005 on how to
 		// generate markers for external files
@@ -81,20 +82,28 @@ private void reportProblem(IResource resource, String message,
 				}
 			}
 		}
+
+		// Only display stack if it contains multiple locations
+		String message_display = message;
+		int locationCount = (stack.length() - stack.replace("->", "").length())/2;
+		if (locationCount > 0) {
+			message_display = message + " " + stack;
+		}
 
 		// see
 		// http://wiki.eclipse.org/FAQ_Why_don%27t_my_markers_appear_in_the_editor%27s_vertical_ruler%3F
 		Map<String, Object> attributes = new HashMap<String, Object>();
 		if (lineNumber != 0) {
 			MarkerUtilities.setLineNumber(attributes, lineNumber);
 		}
-		MarkerUtilities.setMessage(attributes, message);
+		MarkerUtilities.setMessage(attributes, message_display);
 		attributes.put(IMarker.SEVERITY, severity);
 		// the following attributes are only used for the quick fixes
 		attributes.put(ATTRIBUTE_ID, id);
 		if (file != null) {
 			attributes.put(ATTRIBUTE_FILE, file.toString());
 		}
+		attributes.put(ATTRIBUTE_STACK, stack);
 		attributes.put(ATTRIBUTE_ORIGINAL_LINE_NUMBER, originalLineNumber);
 		MarkerUtilities.createMarker(resource, attributes, CHECKER_MARKER_TYPE);
 	}