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Refactor lifetime model selection into type traits #69

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16 changes: 8 additions & 8 deletions docs/spec/allocate_proxy.md
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Original file line number Diff line number Diff line change
Expand Up @@ -8,23 +8,23 @@ The definition of `allocate_proxy` makes use of an exposition-only class templat

```cpp
// (1)
template <facade F, class Alloc, class T>
proxy<F> allocate_proxy(const Alloc& alloc, T&& value); // freestanding-deleted

// (2)
template <facade F, class T, class Alloc, class... Args>
proxy<F> allocate_proxy(const Alloc& alloc, Args&&... args); // freestanding-deleted

// (2)
// (3)
template <facade F, class T, class Alloc, class U, class... Args>
proxy<F> allocate_proxy(const Alloc& alloc, std::initializer_list<U> il, Args&&... args); // freestanding-deleted

// (3)
template <facade F, class Alloc, class T>
proxy<F> allocate_proxy(const Alloc& alloc, T&& value); // freestanding-deleted
```

`(1)` Creates a `proxy<F>` object containing a value `p` of type *allocated-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<Args>(args)...`.
`(1)` Creates a `proxy<F>` object containing a value `p` of type *allocated-ptr&lt;*`std::decay_t<T>`*, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<T>(value)`.

`(2)` Creates a `proxy<F>` object containing a value `p` of type *allocated-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `il, std::forward<Args>(args)...`.
`(2)` Creates a `proxy<F>` object containing a value `p` of type *allocated-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<Args>(args)...`.

`(3)` Creates a `proxy<F>` object containing a value `p` of type *allocated-ptr&lt;*`std::decay_t<T>`*, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<T>(value)`.
`(3)` Creates a `proxy<F>` object containing a value `p` of type *allocated-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `il, std::forward<Args>(args)...`.

*Since 3.3.0*: For `(1-3)`, if [`proxiable_target<std::decay_t<T>, F>`](proxiable_target.md) is `false`, the program is ill-formed and diagnostic messages are generated.

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16 changes: 8 additions & 8 deletions docs/spec/allocate_proxy_shared.md
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Expand Up @@ -9,23 +9,23 @@ The definition of `allocate_proxy_shared` makes use of exposition-only class tem

```cpp
// (1)
template <facade F, class Alloc, class T>
proxy<F> allocate_proxy_shared(const Alloc& alloc, T&& value); // freestanding-deleted

// (2)
template <facade F, class T, class Alloc, class... Args>
proxy<F> allocate_proxy_shared(const Alloc& alloc, Args&&... args); // freestanding-deleted

// (2)
// (3)
template <facade F, class T, class Alloc, class U, class... Args>
proxy<F> allocate_proxy_shared(const Alloc& alloc, std::initializer_list<U> il, Args&&... args); // freestanding-deleted

// (3)
template <facade F, class Alloc, class T>
proxy<F> allocate_proxy_shared(const Alloc& alloc, T&& value); // freestanding-deleted
```

`(1)` Creates a `proxy<F>` object containing a value `p` of type *strong-compact-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<Args>(args)...`.
`(1)` Creates a `proxy<F>` object containing a value `p` of type *strong-compact-ptr&lt;*`std::decay_t<T>`*, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<T>(value)`.

`(2)` Creates a `proxy<F>` object containing a value `p` of type *strong-compact-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `il, std::forward<Args>(args)...`.
`(2)` Creates a `proxy<F>` object containing a value `p` of type *strong-compact-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<Args>(args)...`.

`(3)` Creates a `proxy<F>` object containing a value `p` of type *strong-compact-ptr&lt;*`std::decay_t<T>`*, Alloc&gt;*, where `*p` is direct-non-list-initialized with `std::forward<T>(value)`.
`(3)` Creates a `proxy<F>` object containing a value `p` of type *strong-compact-ptr&lt;T, Alloc&gt;*, where `*p` is direct-non-list-initialized with `il, std::forward<Args>(args)...`.

For `(1-3)`, if [`proxiable_target<std::decay_t<T>, F>`](proxiable_target.md) is `false`, the program is ill-formed and diagnostic messages are generated.

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16 changes: 8 additions & 8 deletions docs/spec/make_proxy.md
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Expand Up @@ -19,23 +19,23 @@ proxy<F> make-proxy-internal(Args&&... args) {

```cpp
// (1)
template <facade F, class T>
proxy<F> make_proxy(T&& value); // freestanding-deleted

// (2)
template <facade F, class T, class... Args>
proxy<F> make_proxy(Args&&... args); // freestanding-deleted

// (2)
// (3)
template <facade F, class T, class U, class... Args>
proxy<F> make_proxy(std::initializer_list<U> il, Args&&... args); // freestanding-deleted

// (3)
template <facade F, class T>
proxy<F> make_proxy(T&& value); // freestanding-deleted
```

`(1)` Equivalent to `return make-proxy-internal<F, T>(std::forward<Args>(args)...)`.
`(1)` Equivalent to `return make-proxy-internal<F, std::decay_t<T>>(std::forward<T>(value))`.

`(2)` Equivalent to `return make-proxy-internal<F, T>(il, std::forward<Args>(args)...)`.
`(2)` Equivalent to `return make-proxy-internal<F, T>(std::forward<Args>(args)...)`.

`(3)` Equivalent to `return make-proxy-internal<F, std::decay_t<T>>(std::forward<T>(value))`.
`(3)` Equivalent to `return make-proxy-internal<F, T>(il, std::forward<Args>(args)...)`.

*Since 3.3.0*: For `(1-3)`, if [`proxiable_target<std::decay_t<T>, F>`](proxiable_target.md) is `false`, the program is ill-formed and diagnostic messages are generated.

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20 changes: 10 additions & 10 deletions docs/spec/make_proxy_inplace.md
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Original file line number Diff line number Diff line change
Expand Up @@ -8,30 +8,30 @@ The definition of `make_proxy_inplace` makes use of an exposition-only class tem

```cpp
// (1)
template <facade F, class T>
proxy<F> make_proxy_inplace(T&& value)
noexcept(std::is_nothrow_constructible_v<std::decay_t<T>, T>)
requires(std::is_constructible_v<std::decay_t<T>, T>);

// (2)
template <facade F, class T, class... Args>
proxy<F> make_proxy_inplace(Args&&... args)
noexcept(std::is_nothrow_constructible_v<T, Args...>)
requires(std::is_constructible_v<T, Args...>);

// (2)
// (3)
template <facade F, class T, class U, class... Args>
proxy<F> make_proxy_inplace(std::initializer_list<U> il, Args&&... args)
noexcept(std::is_nothrow_constructible_v<
T, std::initializer_list<U>&, Args...>)
requires(std::is_constructible_v<T, std::initializer_list<U>&, Args...>);

// (3)
template <facade F, class T>
proxy<F> make_proxy_inplace(T&& value)
noexcept(std::is_nothrow_constructible_v<std::decay_t<T>, T>)
requires(std::is_constructible_v<std::decay_t<T>, T>);
```

`(1)` Creates a `proxy<F>` object containing a value `p` of type *inplace-ptr&lt;T&gt;*, where `*p` is direct-non-list-initialized with `std::forward<Args>(args)...`.
`(1)` Creates a `proxy<F>` object containing a value `p` of type *inplace-ptr&lt;*`std::decay_t`*&gt;*, where `*p` is direct-non-list-initialized with `std::forward<T>(value)`.

`(2)` Creates a `proxy<F>` object containing a value `p` of type *inplace-ptr&lt;T&gt;*, where `*p` is direct-non-list-initialized with `il, std::forward<Args>(args)...`.
`(2)` Creates a `proxy<F>` object containing a value `p` of type *inplace-ptr&lt;T&gt;*, where `*p` is direct-non-list-initialized with `std::forward<Args>(args)...`.

`(3)` Creates a `proxy<F>` object containing a value `p` of type *inplace-ptr&lt;*`std::decay_t`*&gt;*, where `*p` is direct-non-list-initialized with `std::forward<T>(value)`.
`(3)` Creates a `proxy<F>` object containing a value `p` of type *inplace-ptr&lt;T&gt;*, where `*p` is direct-non-list-initialized with `il, std::forward<Args>(args)...`.

*Since 3.3.0*: For `(1-3)`, if [`inplace_proxiable_target<std::decay_t<T>, F>`](inplace_proxiable_target.md) is `false`, the program is ill-formed and diagnostic messages are generated.

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16 changes: 8 additions & 8 deletions docs/spec/make_proxy_shared.md
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Original file line number Diff line number Diff line change
Expand Up @@ -7,23 +7,23 @@

```cpp
// (1)
template <facade F, class T>
proxy<F> make_proxy_shared(T&& value); // freestanding-deleted

// (2)
template <facade F, class T, class... Args>
proxy<F> make_proxy_shared(Args&&... args); // freestanding-deleted

// (2)
// (3)
template <facade F, class T, class U, class... Args>
proxy<F> make_proxy_shared(std::initializer_list<U> il, Args&&... args); // freestanding-deleted

// (3)
template <facade F, class T>
proxy<F> make_proxy_shared(T&& value); // freestanding-deleted
```

`(1)` Equivalent to `return allocate_proxy_shared<F, T>(std::allocator<void>{}, std::forward<Args>(args)...)`.
`(1)` Equivalent to `return allocate_proxy_shared<F, std::decay_t<T>>(std::allocator<void>{}, std::forward<T>(value))`.

`(2)` Equivalent to `return allocate_proxy_shared<F, T>(std::allocator<void>{}, il, std::forward<Args>(args)...)`.
`(2)` Equivalent to `return allocate_proxy_shared<F, T>(std::allocator<void>{}, std::forward<Args>(args)...)`.

`(3)` Equivalent to `return allocate_proxy_shared<F, std::decay_t<T>>(std::allocator<void>{}, std::forward<T>(value))`.
`(3)` Equivalent to `return allocate_proxy_shared<F, T>(std::allocator<void>{}, il, std::forward<Args>(args)...)`.

*Since 3.3.0*: For `(1-3)`, if [`proxiable_target<std::decay_t<T>, F>`](proxiable_target.md) is `false`, the program is ill-formed and diagnostic messages are generated.

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4 changes: 2 additions & 2 deletions include/proxy/v4/detail/core.h
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Expand Up @@ -716,8 +716,8 @@ struct meta_storage : facade_traits<F>::meta_storage_base {
template <class T>
class inplace_ptr {
public:
template <class... Args>
explicit inplace_ptr(std::in_place_t, Args&&... args)
template <class Ignore, class... Args>
explicit inplace_ptr(const Ignore&, Args&&... args)
: value_(std::forward<Args>(args)...) {}
inplace_ptr() = default;
inplace_ptr(const inplace_ptr&) = default;
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