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Merge internal changes from Preview 9 release (#5479)
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38 changes: 38 additions & 0 deletions
38
src/LegacySupport/CompilerFeatureRequiredAttribute/CompilerFeatureRequiredAttribute.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
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| #pragma warning disable SA1623 // Property summary documentation should match accessors | ||
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| namespace System.Runtime.CompilerServices; | ||
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| /// <summary> | ||
| /// Indicates that compiler support for a particular feature is required for the location where this attribute is applied. | ||
| /// </summary> | ||
| [AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = false)] | ||
| internal sealed class CompilerFeatureRequiredAttribute : Attribute | ||
| { | ||
| public CompilerFeatureRequiredAttribute(string featureName) | ||
| { | ||
| FeatureName = featureName; | ||
| } | ||
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| /// <summary> | ||
| /// The name of the compiler feature. | ||
| /// </summary> | ||
| public string FeatureName { get; } | ||
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| /// <summary> | ||
| /// If true, the compiler can choose to allow access to the location where this attribute is applied if it does not understand <see cref="FeatureName"/>. | ||
| /// </summary> | ||
| public bool IsOptional { get; init; } | ||
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| /// <summary> | ||
| /// The <see cref="FeatureName"/> used for the ref structs C# feature. | ||
| /// </summary> | ||
| public const string RefStructs = nameof(RefStructs); | ||
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| /// <summary> | ||
| /// The <see cref="FeatureName"/> used for the required members C# feature. | ||
| /// </summary> | ||
| public const string RequiredMembers = nameof(RequiredMembers); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,9 @@ | ||
| Enables use of C# required members on older frameworks. | ||
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| To use this source in your project, add the following to your `.csproj` file: | ||
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| ```xml | ||
| <PropertyGroup> | ||
| <InjectCompilerFeatureRequiredOnLegacy>true</InjectCompilerFeatureRequiredOnLegacy> | ||
| </PropertyGroup> | ||
| ``` |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| Enables use of C# required members on older frameworks. | ||
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| To use this source in your project, add the following to your `.csproj` file: | ||
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| ```xml | ||
| <PropertyGroup> | ||
| <InjectRequiredMemberOnLegacy>true</InjectRequiredMemberOnLegacy> | ||
| </PropertyGroup> | ||
| ``` |
11 changes: 11 additions & 0 deletions
11
src/LegacySupport/RequiredMemberAttribute/RequiredMemberAttribute.cs
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,11 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
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| using System.ComponentModel; | ||
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| namespace System.Runtime.CompilerServices; | ||
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| /// <summary>Specifies that a type has required members or that a member is required.</summary> | ||
| [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = false)] | ||
| [EditorBrowsable(EditorBrowsableState.Never)] | ||
| internal sealed class RequiredMemberAttribute : Attribute; |
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