@Override public Void visitStringLiteral(DartStringLiteral node) { if (foundElement == null) { int start = node.getSourceInfo().getOffset(); int length = node.getSourceInfo().getLength(); int end = start + length; if (end == 0) { return null; } if (start <= startOffset && end >= endOffset) { wordRegion = computeInternalStringRegion(start, length); DartNode parent = node.getParent(); if (parent instanceof DartSourceDirective && ((DartSourceDirective) parent).getSourceUri() == node) { // resolvedElement = ((DartSourceDirective) parent).getElement(); DartLibrary library = compilationUnit.getLibrary(); String fileName = getFileName(library, node.getValue()); CompilationUnit sourcedUnit = library.getCompilationUnit(fileName); if (sourcedUnit != null && sourcedUnit.exists()) { foundElement = sourcedUnit; } } else if (parent instanceof DartResourceDirective && ((DartResourceDirective) parent).getResourceUri() == node) { // resolvedElement = ((DartResourceDirective) parent).getElement(); DartLibrary library = compilationUnit.getLibrary(); try { DartSource unitSource = compilationUnit.getSourceRef(); if (unitSource != null) { LibrarySource librarySource = unitSource.getLibrary(); if (librarySource != null) { DartSource resourceSource = librarySource.getSourceFor(node.getValue()); if (resourceSource != null) { URI resourceUri = resourceSource.getUri(); DartResource resource = library.getResource(resourceUri); if (resource != null && resource.exists()) { foundElement = resource; } } } } } catch (DartModelException exception) { foundElement = null; } } throw new DartElementFoundException(); } } return null; }