private static TypeDefinition DefineNullableAttribute(AssemblyDefinition assemblyDefinition, TypeReference embeddedAttribute, WellKnownTypes wellKnownTypes)
{
var attribute = new TypeDefinition(
@namespace: "System.Runtime.CompilerServices",
name: "NullableAttribute",
TypeAttributes.NotPublic | TypeAttributes.Sealed | TypeAttributes.BeforeFieldInit,
wellKnownTypes.Module.ImportReference(wellKnownTypes.SystemAttribute));
MethodDefinition compilerGeneratedConstructor = wellKnownTypes.SystemRuntimeCompilerServicesCompilerGeneratedAttribute.Resolve().Methods.Single(method => method.IsConstructor && !method.IsStatic && method.Parameters.Count == 0);
attribute.CustomAttributes.Add(new CustomAttribute(wellKnownTypes.Module.ImportReference(compilerGeneratedConstructor)));
attribute.CustomAttributes.Add(new CustomAttribute(embeddedAttribute.Resolve().Methods.Single(method => method.IsConstructor && !method.IsStatic && method.Parameters.Count == 0)));
var constructorByte = MethodFactory.Constructor(wellKnownTypes);
constructorByte.Parameters.Add(new ParameterDefinition(wellKnownTypes.TypeSystem.Byte));
var constructorByteArray = MethodFactory.Constructor(wellKnownTypes);
constructorByteArray.Parameters.Add(new ParameterDefinition(new ArrayType(wellKnownTypes.TypeSystem.Byte)));
attribute.Methods.Add(constructorByte);
attribute.Methods.Add(constructorByteArray);
assemblyDefinition.MainModule.Types.Add(attribute);
return(attribute);
}
protected override void ImplementAttribute(ModuleDefinition module, TypeDefinition attribute, WellKnownTypes wellKnownTypes, CustomAttributeFactory attributeFactory)
{
var constructor = MethodFactory.Constructor(wellKnownTypes.TypeSystem);
constructor.Parameters.Add(new ParameterDefinition("returnValue", ParameterAttributes.None, wellKnownTypes.TypeSystem.Boolean));
attribute.Methods.Add(constructor);
attribute.CustomAttributes.Add(attributeFactory.AttributeUsage(AttributeTargets.Parameter, inherited: false));
}
protected override void ImplementAttribute(ModuleDefinition module, TypeDefinition attribute, WellKnownTypes wellKnownTypes, CustomAttributeFactory attributeFactory)
{
attribute.CustomAttributes.Add(attributeFactory.CompilerGenerated());
attribute.CustomAttributes.Add(attributeFactory.Embedded());
var constructor = MethodFactory.Constructor(wellKnownTypes.TypeSystem);
constructor.Parameters.Add(new ParameterDefinition(wellKnownTypes.TypeSystem.Boolean));
attribute.Methods.Add(constructor);
}
protected override void ImplementAttribute(ModuleDefinition module, TypeDefinition attribute, WellKnownTypes wellKnownTypes, CustomAttributeFactory attributeFactory)
{
attribute.CustomAttributes.Add(attributeFactory.NullableContext(1));
attribute.CustomAttributes.Add(attributeFactory.Nullable(0));
attribute.CustomAttributes.Add(attributeFactory.AttributeUsage(AttributeTargets.Property | AttributeTargets.Parameter | AttributeTargets.ReturnValue, allowMultiple: true, inherited: false));
var constructor = MethodFactory.Constructor(wellKnownTypes.TypeSystem);
constructor.Parameters.Add(new ParameterDefinition("parameterName", ParameterAttributes.None, wellKnownTypes.TypeSystem.String));
attribute.Methods.Add(constructor);
}
private static TypeDefinition DefineNotNullWhenAttribute(AssemblyDefinition assemblyDefinition, WellKnownTypes wellKnownTypes, CustomAttributeFactory attributeFactory)
{
var attribute = new TypeDefinition(
@namespace: "System.Diagnostics.CodeAnalysis",
name: "NotNullWhenAttribute",
TypeAttributes.NotPublic | TypeAttributes.Sealed | TypeAttributes.BeforeFieldInit,
wellKnownTypes.Module.ImportReference(wellKnownTypes.SystemAttribute));
var constructor = MethodFactory.Constructor(wellKnownTypes);
constructor.Parameters.Add(new ParameterDefinition("returnValue", ParameterAttributes.None, wellKnownTypes.TypeSystem.Boolean));
attribute.Methods.Add(constructor);
attribute.CustomAttributes.Add(attributeFactory.AttributeUsage(AttributeTargets.Parameter, inherited: false));
assemblyDefinition.MainModule.Types.Add(attribute);
return(attribute);
}
private static TypeDefinition DefineNotNullIfNotNullAttribute(AssemblyDefinition assemblyDefinition, WellKnownTypes wellKnownTypes, CustomAttributeFactory attributeFactory)
{
var attribute = new TypeDefinition(
@namespace: "System.Diagnostics.CodeAnalysis",
name: "NotNullIfNotNullAttribute",
TypeAttributes.NotPublic | TypeAttributes.Sealed | TypeAttributes.BeforeFieldInit,
wellKnownTypes.Module.ImportReference(wellKnownTypes.SystemAttribute));
attribute.CustomAttributes.Add(attributeFactory.NullableContext(1));
attribute.CustomAttributes.Add(attributeFactory.Nullable(0));
attribute.CustomAttributes.Add(attributeFactory.AttributeUsage(AttributeTargets.Property | AttributeTargets.Parameter | AttributeTargets.ReturnValue, allowMultiple: true, inherited: false));
var constructor = MethodFactory.Constructor(wellKnownTypes);
constructor.Parameters.Add(new ParameterDefinition("parameterName", ParameterAttributes.None, wellKnownTypes.TypeSystem.String));
attribute.Methods.Add(constructor);
assemblyDefinition.MainModule.Types.Add(attribute);
return(attribute);
}