/*
* Replace the entire method body with `throw new PlatformNotSupportedException ()`.
*/
public static void ReplaceWithPlatformNotSupportedException(OptimizerContext context, MethodDefinition method)
{
if (method.IsAbstract || method.IsVirtual || method.IsConstructor || !method.IsIL)
{
throw ThrowUnsupported(method, "Cannot rewrite method of this type into throwing an exception.");
}
method.Body.Instructions.Clear();
method.Body.Instructions.Add(context.CreateNewPlatformNotSupportedException(method));
method.Body.Instructions.Add(Instruction.Create(OpCodes.Throw));
context.MarkAsConstantMethod(method, ConstantValue.Throw);
}
/*
* Replace the entire method body with `return true`.
*/
public static void ReplaceWithReturnTrue(OptimizerContext context, MethodDefinition method)
{
if (method.IsAbstract || method.IsVirtual || method.IsConstructor || !method.IsIL)
{
throw ThrowUnsupported(method, "Cannot rewrite method of this type into returning true.");
}
if (method.HasParameters)
{
throw ThrowUnsupported(method, "Can only rewrite parameterless methods into returning true.");
}
if (method.ReturnType.MetadataType != MetadataType.Boolean)
{
throw ThrowUnsupported(method, "Can only rewrite methods returning bool into returning true.");
}
method.Body.Instructions.Clear();
method.Body.Instructions.Add(Instruction.Create(OpCodes.Ldc_I4_1));
method.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
context.MarkAsConstantMethod(method, ConstantValue.True);
}