pkg/front_end/lib/src/fragment/getter.dart

// Copyright (c) 2024, 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.

part of 'fragment.dart';

class GetterFragment implements Fragment, FunctionFragment {
  final String name;
  final Uri fileUri;
  final int startOffset;
  final int nameOffset;
  final int formalsOffset;
  final int endOffset;
  final bool isTopLevel;
  final List<MetadataBuilder>? metadata;
  final Modifiers modifiers;
  final TypeBuilder returnType;
  final List<NominalParameterBuilder>? typeParameters;
  final LookupScope typeParameterScope;
  final List<FormalParameterBuilder>? formals;
  final AsyncMarker asyncModifier;
  final String? nativeMethodName;

  SourceProcedureBuilder? _builder;

  GetterFragment(
      {required this.name,
      required this.fileUri,
      required this.startOffset,
      required this.nameOffset,
      required this.formalsOffset,
      required this.endOffset,
      required this.isTopLevel,
      required this.metadata,
      required this.modifiers,
      required this.returnType,
      required this.typeParameters,
      required this.typeParameterScope,
      required this.formals,
      required this.asyncModifier,
      required this.nativeMethodName});

  @override
  SourceProcedureBuilder get builder {
    assert(_builder != null, "Builder has not been computed for $this.");
    return _builder!;
  }

  void set builder(SourceProcedureBuilder value) {
    assert(_builder == null, "Builder has already been computed for $this.");
    _builder = value;
  }

  @override
  FunctionBodyBuildingContext createFunctionBodyBuildingContext() {
    return new _GetterBodyBuildingContext(this);
  }

  @override
  String toString() => '$runtimeType($name,$fileUri,$nameOffset)';
}

class _GetterBodyBuildingContext implements FunctionBodyBuildingContext {
  GetterFragment _fragment;

  _GetterBodyBuildingContext(this._fragment);

  @override
  MemberKind get memberKind => _fragment.isTopLevel
      ? MemberKind.TopLevelMethod
      : (_fragment.modifiers.isStatic
          ? MemberKind.StaticMethod
          : MemberKind.NonStaticMethod);

  @override
  bool get shouldBuild => true;

  @override
  LocalScope computeFormalParameterScope(LookupScope typeParameterScope) {
    return _fragment.builder.computeFormalParameterScope(typeParameterScope);
  }

  @override
  LookupScope get typeParameterScope {
    return _fragment.typeParameterScope;
  }

  @override
  BodyBuilderContext createBodyBuilderContext(
      {required bool inOutlineBuildingPhase,
      required bool inMetadata,
      required bool inConstFields}) {
    return _fragment.builder.createBodyBuilderContext(
        inOutlineBuildingPhase: inOutlineBuildingPhase,
        inMetadata: inMetadata,
        inConstFields: inConstFields);
  }

  @override
  InferenceDataForTesting? get inferenceDataForTesting => _fragment
      .builder
      .dataForTesting
      // Coverage-ignore(suite): Not run.
      ?.inferenceData;

  @override
  List<TypeParameter>? get thisTypeParameters =>
      _fragment.builder.thisTypeParameters;

  @override
  VariableDeclaration? get thisVariable => _fragment.builder.thisVariable;
}