private void ValidateEmitInfo(MethodEmitInfo emitInfo, string iMethodName)
{
var targetRef = emitInfo.TargetRef;
Util.Check(targetRef != null, "EmitInfo.TargetRef may not be null; method name: {0}", iMethodName);
Util.Check(targetRef.MemberType == MemberTypes.Field || targetRef.MemberType == MemberTypes.Property,
"Invalid target ref member type: {0}, expected field or property.", targetRef.MemberType);
var targetParams = emitInfo.TargetMethod.GetParameters().ToList();
Util.Check(targetParams.Count == emitInfo.Arguments.Length,
"Invalid EmitInfo for method {0}, arg count {1} does not match target method parameter count {2}",
iMethodName, emitInfo.Arguments.Length, targetParams.Count);
}
private void PushTargetRef(ILGenerator ilGen, MethodEmitInfo emitInfo)
{
// push ref to target from field/prop
var targetRef = emitInfo.TargetRef;
switch (targetRef)
{
case FieldInfo fld:
ilGen.Emit(OpCodes.Ldarg_0); //load ref to this object
ilGen.Emit(OpCodes.Ldfld, fld); // load field value (of this object)
break;
case PropertyInfo prop:
var getter = prop.GetMethod; //getter method
ilGen.Emit(OpCodes.Ldarg_0); //load ref to this object
ilGen.Emit(OpCodes.Callvirt, getter);
break;
default:
Util.Throw("Invalid target ref type: {0}, expected field or property.", targetRef.MemberType);
break;
}
}