| // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| library fasta.dill_typedef_builder; |
| |
| import 'package:kernel/ast.dart' show DartType, Typedef; |
| |
| import '../kernel/kernel_builder.dart' |
| show |
| KernelFunctionTypeAliasBuilder, |
| KernelFunctionTypeBuilder, |
| KernelTypeBuilder, |
| LibraryBuilder, |
| MetadataBuilder; |
| |
| import '../problems.dart' show unimplemented; |
| |
| import 'dill_library_builder.dart' show DillLibraryBuilder; |
| |
| class DillFunctionTypeAliasBuilder extends KernelFunctionTypeAliasBuilder { |
| DillFunctionTypeAliasBuilder(Typedef typedef, DillLibraryBuilder parent) |
| : super(null, typedef.name, null, null, parent, typedef.fileOffset, |
| typedef); |
| |
| List<MetadataBuilder> get metadata { |
| return unimplemented("metadata", -1, null); |
| } |
| |
| @override |
| int get typeVariablesCount => target.typeParameters.length; |
| |
| @override |
| KernelFunctionTypeBuilder get type { |
| return unimplemented("type", -1, null); |
| } |
| |
| @override |
| DartType buildThisType(LibraryBuilder library) => thisType ??= target.type; |
| |
| @override |
| List<DartType> buildTypeArguments( |
| LibraryBuilder library, List<KernelTypeBuilder> arguments) { |
| // For performance reasons, [typeVariables] aren't restored from [target]. |
| // So, if [arguments] is null, the default types should be retrieved from |
| // [cls.typeParameters]. |
| if (arguments == null) { |
| List<DartType> result = new List<DartType>.filled( |
| target.typeParameters.length, null, |
| growable: true); |
| for (int i = 0; i < result.length; ++i) { |
| result[i] = target.typeParameters[i].defaultType; |
| } |
| return result; |
| } |
| |
| // [arguments] != null |
| List<DartType> result = |
| new List<DartType>.filled(arguments.length, null, growable: true); |
| for (int i = 0; i < result.length; ++i) { |
| result[i] = arguments[i].build(library); |
| } |
| return result; |
| } |
| } |