🔧 update docs gen script to include extension types and toc.

scripts/extensions_docs_generator.dart

@@ -18,6 +18,7 @@ class Stats {
   List<ClassElement> classes = [];
   List<PropertyAccessorElement> variables = [];
   List<ExtensionElement> extensions = [];
+  List<ExtensionTypeElement> extensionTypes = [];
   List<TypeDefiningElement> typedefs = [];
   List<MixinElement> mixins = [];
 
@@ -26,6 +27,7 @@ class Stats {
     required this.classes,
     required this.variables,
     required this.extensions,
+    required this.extensionTypes,
     required this.typedefs,
     required this.mixins,
   });
@@ -35,6 +37,7 @@ class Stats {
         classes: classes + other.classes,
         variables: variables + other.variables,
         extensions: extensions + other.extensions,
+        extensionTypes: extensionTypes + other.extensionTypes,
         typedefs: typedefs + other.typedefs,
         mixins: mixins + other.mixins,
       );
@@ -79,18 +82,24 @@ void main(List<String> args) async {
     sink = stdout;
   }
 
+  sink.writeln('# Docs');
+  sink.writeln(
+      '> *This file is auto generated. Do not edit this file manually.*');
+  sink.writeln(
+      '> *Last Updated: ${DateFormat('EEE, MMM dd, yyyy - hh:mm a').format(DateTime.now())}*');
+  sink.writeln('\n');
+  generateTableOfContents(sink, stats);
+  sink.writeln('\n');
+
   outputExtensions(sink, stats, isDry: isDry);
   outputFunctions(sink, stats, isDry: isDry);
+  outputExtensionTypes(sink, stats, isDry: isDry);
 
   if (!isDry) sink.close();
 }
 
 void outputExtensions(IOSink sink, Stats stats, {required bool isDry}) {
   sink.writeln('# Extensions');
-  sink.writeln(
-      '> *This file is auto generated. Do not edit this file manually.*');
-  sink.writeln(
-      '> *Last Updated: ${DateFormat('EEE, MMM dd, yyyy - hh:mm a').format(DateTime.now())}*');
   sink.writeln('\n');
 
   for (final extension in stats.extensions) {
@@ -168,6 +177,61 @@ void outputFunctions(IOSink sink, Stats stats, {required bool isDry}) {
   sink.writeln('\n');
 }
 
+void outputExtensionTypes(IOSink sink, Stats stats, {required bool isDry}) {
+  sink.writeln('# Extensions Types (${stats.extensionTypes.length})');
+  sink.writeln('\n');
+
+  // table header
+  sink.writeln('| Extension Type | on | Description |');
+  sink.writeln('|---|---|---|');
+
+  for (final extensionType in stats.extensionTypes) {
+    String path = extensionType.source.toString();
+    final String githubFilePath = path.replaceAll(RegExp(r'.*lib'),
+        'https://github.com/BirjuVachhani/screwdriver/blob/main/lib');
+
+    // Get the line number of the method
+    final lineNumber = LineInfo.fromContent(extensionType.source.contents.data)
+        .getLocation(extensionType.nameOffset)
+        .lineNumber;
+
+    final description = sanitizeDocComment(
+        extensionType.documentationComment ?? 'Not provided');
+
+    sink.writeln(
+        '| [`${extensionType.displayName}`]($githubFilePath#L$lineNumber) | `${extensionType.representation.type.element?.name ?? 'N/A'}` | $description |');
+  }
+  sink.writeln('\n');
+}
+
+void generateTableOfContents(IOSink sink, Stats stats) {
+  sink.writeln('## Table of Contents');
+
+  // Extensions
+  sink.writeln('- [Extensions](#extensions)');
+  for (final extension in stats.extensions) {
+    final DartType type = extension.extendedType;
+    if (type is TypeParameterType) {
+      sink.writeln('  - [${type.bound}](#on-${type.bound})');
+    } else {
+      sink.writeln(
+          '  - [${extension.extendedType}](#on-${extension.extendedType})');
+    }
+  }
+
+  // Functions
+  sink.writeln('- [Functions](#functions)');
+  for (final function in stats.functions) {
+    sink.writeln('  - [${function.displayName}](#functions)');
+  }
+
+  // Extension Types
+  sink.writeln('- [Extension Types](#extension-types)');
+  for (final extensionType in stats.extensionTypes) {
+    sink.writeln('  - [${extensionType.displayName}](#extension-types)');
+  }
+}
+
 String sanitizeDocComment(String comment) {
   String sanitized = comment;
   sanitized = sanitized
@@ -211,12 +275,14 @@ Future<Stats> getStats(String library) async {
   var helpersClasses = <ClassElement>[];
   var helperVariables = <PropertyAccessorElement>[];
   var extensions = <ExtensionElement>[];
+  var extensionTypes = <ExtensionTypeElement>[];
   var typedefs = <TypeDefiningElement>[];
   var mixins = <MixinElement>[];
 
   for (final part in result.element.units) {
     helpersFunctions += part.functions.wherePublic().toList();
     extensions += part.extensions.wherePublic().toList();
+    extensionTypes += part.extensionTypes.wherePublic().toList();
     helpersClasses += part.classes.wherePublic().toList();
     helperVariables += part.accessors.wherePublic().toList();
     typedefs += part.typeAliases.wherePublic().toList();
@@ -228,6 +294,7 @@ Future<Stats> getStats(String library) async {
     classes: helpersClasses,
     functions: helpersFunctions,
     extensions: extensions,
+    extensionTypes: extensionTypes,
     typedefs: typedefs,
     mixins: mixins,
   );
@@ -247,7 +314,7 @@ void collectExports(LibraryOrAugmentationElement element, Stats stats,
         stats.functions.addAll(unit.functions.wherePublic());
         stats.variables.addAll(unit.accessors.wherePublic());
         stats.extensions += unit.extensions.wherePublic().toList();
-        stats.extensions += unit.extensions.wherePublic().toList();
+        stats.extensionTypes += unit.extensionTypes.wherePublic().toList();
         stats.typedefs += unit.typeAliases.wherePublic().toList();
         stats.mixins += unit.mixins.wherePublic().toList();