3.0.0

Proxy 3.0.0 is Now Available!

Check out the new features in our announcement!

Please find more technical details with the following links:

• API Reference: https://microsoft.github.io/proxy/docs/specifications.html
• Frequently Asked Questions: https://microsoft.github.io/proxy/docs/faq.html

New Contributors

• @frederick-vs-ja made their first contribution in #59
• @alvarogalloc made their first contribution in #133

Full Changelog: 2.0.0...3.0.0

3.0.0-rc1

Proxy 3: Feature Complete

After evolving for around half a year, Proxy 3 is now feature complete, with the latest and greatest design for modern runtime polymorphism in C++. Full documentation will be available with the final release of version 3.0.0 soon. Please stay tuned.

What's Changed

• Fix helper macros for multiple signatures by @mingxwa in #96
• Fix UB in in-place construction by @mingxwa in #99
• Fix GCC pipeline by @mingxwa in #101
• Improve facade infrastructure by @mingxwa in #102
• Improve invocation APIs and facilities to define an operator dispatch by @mingxwa in #106
• Simulate overload resolution in macros by @mingxwa in #110
• Implement pointer-to-member support by @mingxwa in #111
• Refactoring: Improve code clarity by @mingxwa in #112
• Fix typo by @mingxwa in #114
• Implement indirection syntax by @mingxwa in #121
• Improve accessibility by @mingxwa in #124
• Move direction semantics from dispatches to conventions by @mingxwa in #125
• Revise semantics of proxiable_ptr_constraints by @mingxwa in #127
• Improve API design by @mingxwa in #128
• Make facade_builder a class type, rather than a type alias by @mingxwa in #129
• Improve code quality by @mingxwa in #130
• fix referencing non-existent vcpkg website by @alvarogalloc in #133
• Revise pro::facade_builder::restrict_layout by @mingxwa in #132
• Refactor implementation of meta_ptr by @mingxwa in #139
• Remove some macros by @mingxwa in #136
• Remove redundant macro ___PRO_DEF_BRACKETS_OP_ACCESSOR by @mingxwa in #144
• Remove redundant semicolon by @mingxwa in #145
• Add feature test macro by @mingxwa in #146
• Add more samples by @mingxwa in #148
• Remove vcpkg.json in samples by @mingxwa in #149
• Run BVT with AppleClang by @mingxwa in #150
• Update Google test version by @mingxwa in #151
• Fix build error by @mingxwa in #153
• Add .gitattributes by @mingxwa in #155

New Contributors

• @alvarogalloc made their first contribution in #133

Full Changelog: 2.4.0...3.0.0-rc1

2.4.0

People want proxy.Fun() syntax. Now done.

Full Changelog: 2.3.2...2.4.0

2.3.2

New API

template <class T, class F>  // freestanding
concept inplace_proxiable_target = proxiable<implementation-defined-pointer<T>, F>;

template <facade F, inplace_proxiable_target<F> T, class... Args>  // freestanding
proxy<F> make_proxy_inplace(Args&&... args)
    noexcept(std::is_nothrow_constructible_v<T, Args...>);

template <facade F, inplace_proxiable_target<F> T, class U, class... Args>  // freestanding
proxy<F> make_proxy_inplace(std::initializer_list<U> il, Args&&... args)
    noexcept(std::is_nothrow_constructible_v<T, std::initializer_list<U>&, Args...>);

template <facade F, class T>  // freestanding
proxy<F> make_proxy_inplace(T&& value)
    noexcept(std::is_nothrow_constructible_v<std::decay_t<T>, T>)
    requires(inplace_proxiable_target<std::decay_t<T>, F>);

The function template make_proxy_inplace overloads allow creation of proxy with no-allocation guarantee, and also support freestanding.

What's Changed

• Fix regression in GCC 11 by @mingxwa in #90
• Implement make_proxy_inplace and inplace_proxiable_target with freestanding by @mingxwa in #92

Full Changelog: 2.3.1...2.3.2

2.3.1

What's Changed

• Fix UB of potentially wrong compile-time assumption of transparently replaceable by @mingxwa in #81
• Improve code generation by @mingxwa in #83
• Add support for accessing the underlying pointer type via a dispatch by @mingxwa in #85

Full Changelog: 2.3.0...2.3.1

2.3.0

Moving towards standardization

We have reviewed the general design of the last version of proxy in the last ISO C++ committee meeting. The committee unanimously agreed that the problem addressed by proxy is significant and merits resolution. Based on the feedback, there is a strong possibility that proxy will advance to the next stage of review for the C++26 standardization. Please refer to the latest paper and presentation slides for more details.

In this update, we have resolved some technical comments from the committee and user feedback. Specifically,

• A new API allocate_proxy has been added to the library that accepts any allocator (you can now hook proxy with any of your memory pool seamlessly!). See #76
• Two new helper macros PRO_DEF_MEMBER_DISPATCH_WITH_DEFAULT and PRO_DEF_FREE_DISPATCH_WITH_DEFAULT are added. proxy can now be aware of the default implementation of a dispatch and optimize code generation. See #79
• In the definition of a facade or dispatch, any tuple-like type is now allowed. Although it does not increase much usability, it will precisely match the wording in the paper's next revision. See #76

Full Changelog: 2.2.1...2.3.0

2.2.1

What's Changed

• Remove constraints on class template proxy and optimize memory layout for small VTABLE by @mingxwa in #70
• Improve compile-time constraints for constants by @mingxwa in #72

Full Changelog: 2.2.0...2.2.1

2.2.0

What's Changed

• Add support for noexcept by @mingxwa in #62 (Thanks to @psiha's idea #61)
• Add noexcept for copyability, relocatability and destructibility metadata by @mingxwa in #63
• Update README.md and replaced std::popcount() with std::has_single_bit() by @mingxwa in #64

Full Changelog: 2.1.2...2.2.0

2.1.2

What's Changed

• Fix self-move-assignment for proxy by @frederick-vs-ja in #59
• Reduce compile-time complexity of combined_dispatch_prototype::overload_types by @mingxwa in #60

New Contributors

• @frederick-vs-ja made their first contribution in #59

Full Changelog: 2.1.1...2.1.2

2.1.1

What's Changed

• Fix is_address_deducible for MSVC by @mingxwa in #57
• Add support for combination of incomplete dispatch by @mingxwa in #58

Full Changelog: 2.1.0...2.1.1