87 lines
2.3 KiB
Dart
87 lines
2.3 KiB
Dart
import 'dart:async';
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import 'package:analyzer/dart/element/element.dart';
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import 'package:analyzer/dart/element/type_system.dart';
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import 'package:build/build.dart';
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import 'package:source_gen/source_gen.dart';
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import 'store_class_visitor.dart';
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import 'template/widget_class_gen.dart';
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import 'template/store_file.dart';
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import 'type_names.dart';
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class WidgetGenerator extends Generator {
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//GeneratorForAnnotation<WidgetClass> {
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@override
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FutureOr<String> generate(LibraryReader library, BuildStep buildStep) async {
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if (library.allElements.isEmpty) {
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return '';
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}
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final typeSystem = await library.allElements.first.session.typeSystem;
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final file = StoreFileTemplate()
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..storeSources = _generateCodeForLibrary(library, typeSystem).toSet();
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return file.toString();
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}
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Iterable<String> _generateCodeForLibrary(
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LibraryReader library,
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TypeSystem typeSystem,
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) sync* {
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for (final classElement in library.classes) {
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yield* _generateCodeForMixinStore(
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library,
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classElement,
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typeSystem,
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);
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}
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}
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Iterable<String> _generateCodeForMixinStore(
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LibraryReader library,
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ClassElement baseClass,
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TypeSystem typeSystem,
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) sync* {
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final typeNameFinder = LibraryScopedNameFinder(library.element);
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String _base;
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double width, height;
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if (isWidgetClass(baseClass)) {
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width = getPreferredWidth(baseClass);
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height = getPreferredHeight(baseClass);
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if (width != null || height != null) {
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_base = 'WidgetPreferredSizedBase';
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} else {
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_base = 'WidgetBase';
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}
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}
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if (isPropertyClass(baseClass)) {
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_base = 'PropertyBase';
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}
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if (_base != null) {
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final _template = MixinStoreTemplate(_base)
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..width = width
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..height = height;
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yield _generateCodeFromTemplate(
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baseClass.name,
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baseClass,
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_template,
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typeNameFinder,
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);
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}
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}
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String _generateCodeFromTemplate(
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String publicTypeName,
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ClassElement userStoreClass,
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StoreTemplate template,
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LibraryScopedNameFinder typeNameFinder,
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) {
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final visitor = StoreClassVisitor(publicTypeName, userStoreClass, template);
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userStoreClass
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..accept(visitor)
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..visitChildren(visitor);
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return visitor.source;
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}
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}
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