pfr
sapio
pfr | sapio | |
---|---|---|
4 | 2 | |
1,263 | 244 | |
1.0% | 1.6% | |
7.9 | 6.7 | |
17 days ago | 3 months ago | |
C++ | Rust | |
Boost Software License 1.0 | Mozilla Public License 2.0 |
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pfr
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Rooting for P1061 "Structured Bindings can introduce a Pack"
This single feature opens a world of new possiblities. For example, it makes implementing "getting the number of fields" trivial. Furthrmore, and much more importantly, it enables turning a struct into a tuple. Currently, this can only be done by enumerating cases (therefore it's not fully generic), as with Boost PFR. By the way, PFR greatly simplifies our codebases, especially for parts with serialization and/or reflection.
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Minimum viable declarative GUI in C++
The code is relatively short and can be groked with a few coffees: https://github.com/boostorg/pfr/tree/develop/include/boost/pfr ; if you're using C++17 it uses a binary search (https://github.com/boostorg/pfr/blob/develop/include/boost/pfr/detail/fields_count.hpp) to count the number of fields in a struct, by starting by the observation that a likely majorant on the number of fields in a struct is sizeof(the struct) * CHAR_BIT, assuming not too many [[no_unique_address]] tomfooleries. Then once this count is known it's possible to simply map them as a tuple through sheer brute force and destructuring: https://github.com/boostorg/pfr/blob/develop/include/boost/pfr/detail/core17_generated.hpp
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The Serde Rust Framework
I wonder if the c++ approach of boost.pfr would be portable to rust ? It allows reflection on aggregates without needing to annotate anything: https://github.com/boostorg/pfr
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Counting the number of fields in an aggregate in C++20
It is an 'interesting' meta-programming problem though (wasted many weeks on it myself, fixed a small gcc bug - a 'uniform init' edge case and filed an issue with magic_get Reflecting array members of aggregate structs).
sapio
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The Serde Rust Framework
one thing that has kinda irked me about serde is that there's relatively limited support for bounding memory usage for types like a Vec at deserialize time without a lot of manual work.
It is doable (e.g. see SafePSBT deserializer here https://github.com/sapio-lang/sapio/blob/master/ctv_emulator...), just not particularly ergonomic.
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Is Smart Contract development with C# possible?
Sapio: https://github.com/sapio-lang/sapio
What are some alternatives?
Magic Enum C++ - Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
ComLightInterop - Cross-platform COM interop library for .NET Core 2.1 or newer
magic_get - std::tuple like methods for user defined types without any macro or boilerplate code
nanoserde - Serialisation library with zero dependencies
MLV-App - All in one MLV processing app.
node-foundationdb - Modern Node.js FoundationDB bindings
serde_v8 - Moved to https://github.com/denoland/deno
create-rust-app - Set up a modern rust+react web app by running one command.
miniserde - Data structure serialization library with several opposite design goals from Serde
EU4ConsolePatcher - A simple memory patcher which enables the internal developer console in ironman mode
manifold - Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.