Konstantin Shcheglov
833795d54c
Change-Id: I834e56b62df36782772e299e4279c408e9f8ec0d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241241 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
51 lines
1.7 KiB
Dart
51 lines
1.7 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'api.dart';
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/// Visitor specialized for generating Dart code.
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class DartCodegenVisitor extends HierarchicalApiVisitor {
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/// Type references in the spec that are named something else in Dart.
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static const Map<String, String> _typeRenames = {
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'long': 'int',
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'object': 'Map',
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};
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DartCodegenVisitor(super.api);
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/// Convert the given [TypeDecl] to a Dart type.
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String dartType(TypeDecl type) {
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if (type is TypeReference) {
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var typeName = type.typeName;
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var referencedDefinition = api.types[typeName];
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var typeRename = _typeRenames[typeName];
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if (typeRename != null) {
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return typeRename;
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}
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if (referencedDefinition == null) {
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return typeName;
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}
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var referencedType = referencedDefinition.type;
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if (referencedType is TypeObject || referencedType is TypeEnum) {
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return typeName;
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}
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return dartType(referencedType);
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} else if (type is TypeList) {
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return 'List<${dartType(type.itemType)}>';
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} else if (type is TypeMap) {
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return 'Map<${dartType(type.keyType)}, ${dartType(type.valueType)}>';
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} else if (type is TypeUnion) {
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return 'Object';
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} else {
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throw Exception("Can't convert to a dart type");
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}
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}
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/// Return the Dart type for [field], nullable if the field is optional.
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String fieldDartType(TypeObjectField field) {
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var typeStr = dartType(field.type);
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return field.optional ? '$typeStr?' : typeStr;
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}
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}
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