|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using SourceGenerators;
namespace System.Text.Json.SourceGeneration
{
/// <summary>
/// Models a constructor parameter for a generated type.
/// </summary>
/// <remarks>
/// Type needs to be cacheable as a Roslyn incremental value so it must be
///
/// 1) immutable and
/// 2) implement structural (pointwise) equality comparison.
///
/// We can get these properties for free provided that we
///
/// a) define the type as an immutable C# record and
/// b) ensure all nested members are also immutable and implement structural equality.
///
/// When adding new members to the type, please ensure that these properties
/// are satisfied otherwise we risk breaking incremental caching in the source generator!
/// </remarks>
public sealed record ParameterGenerationSpec
{
public required TypeRef ParameterType { get; init; }
public required string Name { get; init; }
public required bool HasDefaultValue { get; init; }
// The default value of a constructor parameter can only be a constant
// so it always satisfies the structural equality requirement for the record.
public required object? DefaultValue { get; init; }
public required int ParameterIndex { get; init; }
public required bool IsNullable { get; init; }
}
}
|