61 строка
2.2 KiB
C#
61 строка
2.2 KiB
C#
using System;
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using Mono.Cecil;
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using Mono.Tuner;
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namespace Xamarin.Linker {
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public class MobileRemoveAttributes : RemoveAttributesBase {
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protected virtual bool DebugBuild {
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get { return context.LinkSymbols; }
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}
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protected override bool IsRemovedAttribute (CustomAttribute attribute)
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{
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// note: this also avoid calling FullName (which allocates a string)
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var attr_type = attribute.Constructor.DeclaringType;
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switch (attr_type.Name) {
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case "ObsoleteAttribute":
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// System.Mono*Attribute from mono/mcs/build/common/MonoTODOAttribute.cs
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case "MonoLimitationAttribute":
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case "MonoNotSupportedAttribute":
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case "MonoTODOAttribute":
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return attr_type.Namespace == "System";
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// remove debugging-related attributes if we're not linking symbols (i.e. we're building release builds)
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case "DebuggableAttribute":
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case "DebuggerBrowsableAttribute":
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case "DebuggerDisplayAttribute":
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case "DebuggerHiddenAttribute":
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case "DebuggerNonUserCodeAttribute":
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case "DebuggerStepperBoundaryAttribute":
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case "DebuggerStepThroughAttribute":
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case "DebuggerTypeProxyAttribute":
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case "DebuggerVisualizerAttribute":
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return !DebugBuild && attr_type.Namespace == "System.Diagnostics";
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// compiler nullability attributes are not used at runtime so they can be removed by the linker
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case "NullableAttribute":
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case "NullableContextAttribute":
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case "NullablePublicOnlyAttribute":
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return attr_type.Namespace == "System.Runtime.CompilerServices";
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// _manual_ nullability attributes are not used at runtime so they can be removed by the linker
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case "AllowNullAttribute":
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case "DisallowNullAttribute":
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case "DoesNotReturnAttribute":
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case "DoesNotReturnIfAttribute":
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case "ExcludeFromCodeCoverageAttribute":
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case "MaybeNullAttribute":
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case "MaybeNullWhenAttribute":
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case "NotNullAttribute":
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case "NotNullIfNotNullAttribute":
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case "NotNullWhenAttribute":
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return attr_type.Namespace == "System.Diagnostics.CodeAnalysis";
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// decorate the internalattributes (like nullability) that Roslyn inject into assemblies
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case "EmbeddedAttribute":
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return attr_type.Namespace == "Microsoft.CodeAnalysis";
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default:
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return false;
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}
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}
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}
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}
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