private static object GetParameter(ParameterInfo param, VariableTypes variableTypes, IEnumerable <ExecArgument <Info> > inputs)
{
var input = inputs.FirstOrDefault(i => i.Argument.ArgumentName == param.Name);
return(input != null
? variableTypes.TranslateValue(input.Value, param.ParameterType)
: GetDefault(param.ParameterType));
}
private static object GetAnonymousArgs
(ConstructorInfo anonTypeCtor, VariableTypes variableTypes, IEnumerable <ExecArgument <Info> > inputs)
{
var parameters = anonTypeCtor
.GetParameters()
.Select(p => GetParameter(p, variableTypes, inputs))
.ToArray();
return(anonTypeCtor.Invoke(parameters));
}
internal static object GetArgs(Type argsType, VariableTypes variableTypes, IEnumerable <ExecArgument <Info> > inputs)
{
var paramlessCtor = argsType.GetConstructors().FirstOrDefault(c => c.GetParameters().Length == 0);
if (paramlessCtor != null)
{
return(GetParamlessArgs(argsType, paramlessCtor, variableTypes, inputs));
}
var anonTypeCtor = argsType.GetConstructors().Single();
return(GetAnonymousArgs(anonTypeCtor, variableTypes, inputs));
}
internal static IEnumerable <ISchemaArgument <Info> > GetArgs(VariableTypes variableTypes, Type argsType)
{
var paramlessCtor = argsType.GetConstructors().FirstOrDefault(c => c.GetParameters().Length == 0);
if (paramlessCtor != null)
{
return(argsType.GetProperties()
.Select(p => new SchemaArgument(p.Name, variableTypes.VariableTypeOf(p.PropertyType))));
}
var anonTypeCtor = argsType.GetConstructors().Single();
return(anonTypeCtor.GetParameters()
.Select(p => new SchemaArgument(p.Name, variableTypes.VariableTypeOf(p.ParameterType))));
}
private static object GetParamlessArgs
(Type argsType, ConstructorInfo paramlessCtor, VariableTypes variableTypes, IEnumerable <ExecArgument <Info> > inputs)
{
var args = paramlessCtor.Invoke(null);
foreach (var input in inputs)
{
var prop = argsType.GetProperty(input.Argument.ArgumentName);
prop.GetSetMethod()
.Invoke(args, new[]
{
variableTypes.TranslateValue(input.Value, prop.PropertyType)
});
}
return(args);
}
/// <summary> /// Instantiate an object of <typeparamref name="TArgs"/> given a list of <paramref name="inputs"/>. /// This works for objects with parameterless constructors or anonymous types. /// </summary> /// <typeparam name="TArgs"></typeparam> /// <param name="variableTypes"></param> /// <param name="inputs"></param> /// <returns></returns> internal static TArgs GetArgs <TArgs>(VariableTypes variableTypes, IEnumerable <ExecArgument <Info> > inputs) => (TArgs)GetArgs(typeof(TArgs), variableTypes, inputs);
internal static IEnumerable <ISchemaArgument <Info> > GetArgs <TArgs>(VariableTypes variableTypes) => GetArgs(variableTypes, typeof(TArgs));
public MetaTypeHandler(VariableTypes variableTypes)
{
_variableTypes = variableTypes;
}
public MetaTypeHandler(VariableTypes variableTypes)
{
_variableTypes = variableTypes;
}
