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Re: Update: P1240R2 — Scalable Reflection

From: Jonathan O'Connor <jonathan.oconnor_at_[hidden]>
Date: Sun, 30 Jan 2022 12:55:26 +0000

Here are some remarks on code generation and extending the splicing operator. I presume both are out of scope for the paper.

## Generating classes
In the future, I would like to be able to define classes and functions, based on some `std::meta::info`.
As processing of an `info` has to happen inside a function, so it needs to look like the following:

template<typename T>
auto makeClass() {
    // some magic here to define a class based on T.
    return GeneratedClass{};

template<typename T>
using generatedClass = decltype(makeClass<T>());

C++ could support AOP (Aspect Oriented Programming) if we could do this.
I presume this is out of scope for R1240.

## Splicing operator

Has any thought gone into extending what the splicing construct can do? Could it be
extended to allow creation of new symbols? If the splicing construct only takes
a reflection, then that restricts its utility.


‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On Saturday, January 15th, 2022 at 17:41, Daveed Vandevoorde via SG7 <sg7_at_[hidden]> wrote:

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Received on 2022-01-30 12:55:28