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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System.Diagnostics.CodeAnalysis;
using Mono.Cecil;
namespace Mono.Linker
{
public static class MethodDefinitionExtensions
{
public static bool IsDefaultConstructor (this MethodDefinition method)
{
return IsInstanceConstructor (method) && !method.HasParameters;
}
public static bool IsInstanceConstructor (this MethodDefinition method)
{
return method.IsConstructor && !method.IsStatic;
}
public static bool IsIntrinsic (this MethodDefinition method)
{
if (!method.HasCustomAttributes)
return false;
foreach (var ca in method.CustomAttributes) {
var caType = ca.AttributeType;
if (caType.Name == "IntrinsicAttribute" && caType.Namespace == "System.Runtime.CompilerServices")
return true;
}
return false;
}
public static bool IsPropertyMethod (this MethodDefinition md)
{
return (md.SemanticsAttributes & MethodSemanticsAttributes.Getter) != 0 ||
(md.SemanticsAttributes & MethodSemanticsAttributes.Setter) != 0;
}
public static bool IsPublicInstancePropertyMethod (this MethodDefinition md)
{
return md.IsPublic && !md.IsStatic && IsPropertyMethod (md);
}
public static bool IsEventMethod (this MethodDefinition md)
{
return (md.SemanticsAttributes & MethodSemanticsAttributes.AddOn) != 0 ||
(md.SemanticsAttributes & MethodSemanticsAttributes.Fire) != 0 ||
(md.SemanticsAttributes & MethodSemanticsAttributes.RemoveOn) != 0;
}
public static bool TryGetProperty (this MethodDefinition md, [NotNullWhen (true)] out PropertyDefinition? property)
{
property = null;
if (!md.IsPropertyMethod ())
return false;
TypeDefinition declaringType = md.DeclaringType;
foreach (PropertyDefinition prop in declaringType.Properties)
if (prop.GetMethod == md || prop.SetMethod == md) {
property = prop;
return true;
}
return false;
}
public static bool TryGetEvent (this MethodDefinition md, [NotNullWhen (true)] out EventDefinition? @event)
{
@event = null;
if (!md.IsEventMethod ())
return false;
TypeDefinition declaringType = md.DeclaringType;
foreach (EventDefinition evt in declaringType.Events)
if (evt.AddMethod == md || evt.InvokeMethod == md || evt.RemoveMethod == md) {
@event = evt;
return true;
}
return false;
}
public static bool IsStaticConstructor (this MethodDefinition method)
{
return method.IsConstructor && method.IsStatic;
}
public static void ClearDebugInformation (this MethodDefinition method)
{
// TODO: This always allocates, update when Cecil catches up
var di = method.DebugInformation;
di.SequencePoints.Clear ();
if (di.Scope != null) {
di.Scope.Variables.Clear ();
di.Scope.Constants.Clear ();
di.Scope = null;
}
}
}
}
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