| import 'package:analysis_server/src/edit/nnbd_migration/migration_info.dart'; |
| import 'package:mustache/mustache.dart' as mustache; |
| |
| /// Instrumentation display output for a library that was migrated to use non-nullable types. |
| class InstrumentationRenderer { |
| /// Display information for a library. |
| final LibraryInfo info; |
| |
| /// Creates an output object for the given library info. |
| InstrumentationRenderer(this.info); |
| |
| /// Builds an HTML view of the instrumentation information in [info]. |
| String render() { |
| int previousIndex = 0; |
| Map<String, dynamic> mustacheContext = {'units': <Map<String, dynamic>>[]}; |
| for (var compilationUnit in info.units) { |
| StringBuffer buffer = StringBuffer(); |
| for (var region in compilationUnit.regions) { |
| if (region.offset > previousIndex) { |
| // Display a region of unmodified content. |
| buffer.write( |
| compilationUnit.content.substring(previousIndex, region.offset)); |
| previousIndex = region.offset + region.length; |
| } |
| buffer.write(_regionWithTooltip(region, compilationUnit.content)); |
| } |
| if (previousIndex < compilationUnit.content.length) { |
| // Last region of unmodified content. |
| buffer.write(compilationUnit.content.substring(previousIndex)); |
| } |
| mustacheContext['units'] |
| .add({'path': compilationUnit.path, 'content': buffer.toString()}); |
| } |
| return _template.renderString(mustacheContext); |
| } |
| |
| String _regionWithTooltip(RegionInfo region, String content) { |
| String regionContent = |
| content.substring(region.offset, region.offset + region.length); |
| return '<span class="region">$regionContent' |
| '<span class="tooltip">${region.explanation}</span></span>'; |
| } |
| } |
| |
| /// A mustache template for one library's instrumentation output. |
| mustache.Template _template = mustache.Template(r''' |
| <html> |
| <head> |
| <title>Non-nullable fix instrumentation report</title> |
| <style> |
| h2 { |
| font-size: 1em; |
| font-weight: bold; |
| } |
| |
| div.content { |
| font-family: monospace; |
| whitespace: pre; |
| } |
| |
| .region { |
| /* Green means this region was added. */ |
| color: green; |
| display: inline-block; |
| position: relative; |
| } |
| |
| .region .tooltip { |
| background-color: #EEE; |
| border: solid 2px #999; |
| color: #333; |
| left: 50%; |
| margin-left: -50px; |
| padding: 1px; |
| position: absolute; |
| top: 120%; |
| visibility: hidden; |
| width: 100px; |
| z-index: 1; |
| } |
| |
| .region:hover .tooltip { |
| visibility: visible; |
| } |
| </style> |
| </head> |
| <body> |
| <h1>Non-nullable fix instrumentation report</h1> |
| <p><em>Well-written introduction to this report.</em></p> |
| {{# units }} |
| <h2>{{ path }}</h2> |
| <div class="content"> |
| {{{ content }}} |
| </div> {{! content }} |
| {{/ units }} |
| </body> |
| </html> |
| '''); |
