Bug 104065 [quick fix] No Quick Fixes for marker with IMarker.LINE_NUMBER and no IMarker.CHAR_START and IMarker.CHAR_END
I'm creating (problem) markers for a java file and I only have a line number available when I create the marker. I add the IMarker.LINE_NUMBER attribute to the marker attributes, but do not specify a CHAR_START or CHAR_END. The marker shows up in the file, but there are no Quick Fixes available for it (using Ctrl+1 or right click on the marker). When I click on the marker in the problems view, however, I get the quick fixes that are possible. (This used to work in 3.0, doesnt now in 3.1) I traced through the code and found that the markers with a line number get their end and start range set to be the same in: AbstractMarkerAnnotationModel.createPositionFromMarker(IMarker marker). Because the start and end are both -1 coming into the method, end = start. In JavaCorrectionAssistant.collectQuickFixableAnnotations(), there is a check to see if the Position for the offset is within the range -- its a call to JavaCorrectionAssistant.isInside(). isInside has the following body: private static boolean isInside(int offset, int start, int end) { return offset >= start && offset < end; } BUT, because the start and end are set to be the same, its NEVER inside. The net effect: any markers with a position set via LINE_NUMBER will not get a quick fix.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/JavaCorrectionAssistant.java
*/
	protected void possibleCompletionsClosed() {
		super.possibleCompletionsClosed();
		restorePosition();
	}
	private void storePosition(int currOffset, int currLength) {
		fPosition= new Position(currOffset, currLength);
	}
	private void restorePosition() {
		if (fPosition != null && !fPosition.isDeleted() && fViewer.getDocument() != null) {
			fViewer.setSelectedRange(fPosition.offset, fPosition.length);
			fViewer.revealRange(fPosition.offset, fPosition.length);
		}
		fPosition= null;
	}
	/**
	 * Returns true if the last invoked completion was called with an updated offset.
	 */
	public boolean isUpdatedOffset() {
		return fPosition != null;
	}
	/**
	 * Returns the annotations at the current offset
	 */
	public Annotation[] getAnnotationsAtOffset() {
		return fCurrentAnnotations;
	}
	
}