adding packages

deprecated/flutter_ast/lib/flutter_ast.dart

@@ -0,0 +1,71 @@
+import 'package:analyzer/dart/analysis/utilities.dart';
+import 'package:analyzer/error/error.dart';
+import 'package:flutter_ast_core/flutter_ast_core.dart';
+
+import 'src/index.dart';
+export 'src/index.dart';
+
+DartResult parseSource(String source, [String path]) {
+  assert(source != null && source.isNotEmpty);
+  final result = parseString(
+    content: source,
+    path: path,
+    throwIfDiagnostics: false,
+  );
+  final root = result.unit.root;
+  final file = root.toDartFile();
+  final output = DartResult(file);
+  if (result.errors.isNotEmpty) {
+    output.errors.addAll(result.errors);
+  }
+  return output;
+}
+
+class DartResult {
+  DartResult(this.file);
+  final DartFile file;
+  final List<AnalysisError> errors = [];
+
+  Map<String, dynamic> toJson() {
+    return {
+      'file': file,
+      'errors': [
+        for (final error in errors) error,
+      ],
+    };
+  }
+
+  @override
+  String toString() => toJson().prettyPrint();
+}
+
+extension AnalysisErrorUtils on AnalysisError {
+  Map<String, dynamic> toJson() {
+    return {
+      'message': this.message,
+    };
+  }
+}
+
+void printMembers(CompilationUnit unit) {
+  for (CompilationUnitMember unitMember in unit.declarations) {
+    if (unitMember is ClassDeclaration) {
+      print(unitMember.name.name);
+      for (ClassMember classMember in unitMember.members) {
+        if (classMember is MethodDeclaration) {
+          print('  ${classMember.name}');
+        } else if (classMember is FieldDeclaration) {
+          for (VariableDeclaration field in classMember.fields.variables) {
+            print('  ${field.name.name}');
+          }
+        } else if (classMember is ConstructorDeclaration) {
+          if (classMember.name == null) {
+            print('  ${unitMember.name.name}');
+          } else {
+            print('  ${unitMember.name.name}.${classMember.name.name}');
+          }
+        }
+      }
+    }
+  }
+}