adding packages

deprecated/flutter_ast/lib/src/file.dart

@@ -0,0 +1,56 @@
+import 'package:flutter_ast_core/flutter_ast_core.dart';
+
+import 'analyzer.dart';
+import 'index.dart';
+
+extension AstNodeUtils on AstNode {
+  DartFile toDartFile([String path]) {
+    DartFile base = DartFile(path: path);
+
+    final List<String> imports = [];
+    for (final node in root.childEntities.whereType<ImportDirectiveImpl>()) {
+      final ImportDirectiveImpl _node = node;
+      final _url = _node.uri.stringValue;
+      imports.add(_url);
+    }
+    base = base.copyWith(imports: imports);
+
+    final List<DartField> fields = [];
+    for (final node
+        in root.childEntities.whereType<TopLevelVariableDeclarationImpl>()) {
+      fields.add(node.toDartField());
+    }
+    base = base.copyWith(fields: fields);
+
+    final List<DartMethod> methods = [];
+    for (final node
+        in root.childEntities.whereType<FunctionDeclarationImpl>()) {
+      methods.add(node.toDartMethod());
+    }
+    base = base.copyWith(methods: methods);
+
+    final List<DartClass> classes = [];
+    for (final node in root.childEntities.whereType<ClassDeclarationImpl>()) {
+      final ClassDeclarationImpl _node = node;
+      classes.add(_node.toDartClass(base));
+    }
+    base = base.copyWith(classes: classes);
+
+    final List<DartEnum> enums = [];
+    for (final node in root.childEntities.whereType<EnumDeclarationImpl>()) {
+      final EnumDeclarationImpl _node = node;
+      enums.add(_node.toDartEnum());
+    }
+    base = base.copyWith(enums: enums);
+
+    return base;
+  }
+}
+
+extension DartFileUtils on DartFile {
+  String toDart() {
+    final sb = StringBuffer();
+    // TODO: Write back out to Dart
+    return sb.toString();
+  }
+}