private static LambdaExpression GenerateGetterLambda <TInterface, TState, TArg>(PropertyInfo stateProperty)
{
var ctxParam = Expression.Parameter(typeof(IContext <TInterface, TState>), "ctx");
var stateGetter = Expression.Property(ctxParam, PropertyReflector <IContext <TInterface, TState> > .FromGetter(s => s.State));
var statePropertyGetter = Expression.Property(stateGetter, stateProperty);
return(Expression.Lambda <Func <IContext <TInterface, TState>, TArg> >(statePropertyGetter, ctxParam));
}
private static LambdaExpression GenerateSetterLambda <TInterface, TState, TArg>(PropertyInfo stateProperty)
{
var setMethod = stateProperty.GetSetMethod();
var ctxParam = Expression.Parameter(typeof(IContext <TInterface, TState>), "ctx");
var argParam = Expression.Parameter(typeof(TArg), "value");
var stateGetter = Expression.Property(ctxParam, PropertyReflector <IContext <TInterface, TState> > .FromGetter(s => s.State));
var statePropertySetMethod = Expression.Call(stateGetter, setMethod, argParam);
return(Expression.Lambda <Action <IContext <TInterface, TState>, TArg> >(statePropertySetMethod, ctxParam, argParam));
}
public void Should_find_property_based_on_getter_method()
{
PropertyInfo propertyInfo = typeof(SomeClass).GetProperty("GetterOnly");
Assert.That(PropertyReflector <SomeClass> .FromGetter(c => c.GetterOnly), Is.EqualTo(propertyInfo));
}
