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</pre><pre class="rust ">
<span class="comment">// Copyright 2015-2016, The Gtk-rs Project Developers.</span>
<span class="comment">// See the COPYRIGHT file at the top-level directory of this distribution.</span>
<span class="comment">// Licensed under the MIT license, see the LICENSE file or <http://opensource.org/licenses/MIT></span>
<span class="doccomment">//! `IMPL` Boxed wrapper implementation.</span>
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ops</span>::{<span class="ident">Deref</span>, <span class="ident">DerefMut</span>};
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fmt</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">marker</span>::<span class="ident">PhantomData</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">mem</span>;
<span class="kw">use</span> <span class="ident">translate</span>::<span class="kw-2">*</span>;
<span class="doccomment">/// Wrapper implementations for Boxed types. See `glib_wrapper!`.</span>
<span class="attribute">#[<span class="ident">macro_export</span>]</span>
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">glib_boxed_wrapper</span> {
([$(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span>:<span class="ident">meta</span>)<span class="kw-2">*</span>] <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>:<span class="ident">path</span>, @<span class="ident">copy</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">copy_arg</span>:<span class="ident">ident</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">copy_expr</span>:<span class="ident">expr</span>,
@<span class="ident">free</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">free_arg</span>:<span class="ident">ident</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">free_expr</span>:<span class="ident">expr</span>) <span class="op">=></span> {
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span>]</span>)<span class="op">*</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Debug</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">boxed</span>::<span class="ident">Boxed</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>, <span class="ident">MemoryManager</span><span class="op">></span>);
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">MemoryManager</span>;
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">boxed</span>::<span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span><span class="op">></span> <span class="kw">for</span> <span class="ident">MemoryManager</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">copy</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">copy_arg</span>: <span class="kw-2">*</span><span class="kw">const</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>) <span class="op">-></span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span> {
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">copy_expr</span>
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">free</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">free_arg</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>) {
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">free_expr</span>
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">Uninitialized</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">uninitialized</span>() <span class="op">-></span> <span class="self">Self</span> {
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">boxed</span>::<span class="ident">Boxed</span>::<span class="ident">uninitialized</span>())
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">GlibPtrDefault</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span> {
<span class="kw">type</span> <span class="ident">GlibType</span> <span class="op">=</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>;
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">ToGlibPtr</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw">const</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span> {
<span class="kw">type</span> <span class="ident">Storage</span> <span class="op">=</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">boxed</span>::<span class="ident">Boxed</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>, <span class="ident">MemoryManager</span><span class="op">></span>;
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">to_glib_none</span>(<span class="kw-2">&</span><span class="lifetime">'a</span> <span class="self">self</span>) <span class="op">-></span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">Stash</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw">const</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>, <span class="self">Self</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">stash</span> <span class="op">=</span> <span class="self">self</span>.<span class="number">0</span>.<span class="ident">to_glib_none</span>();
<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">Stash</span>(<span class="ident">stash</span>.<span class="number">0</span>, <span class="ident">stash</span>.<span class="number">1</span>)
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">ToGlibPtrMut</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span> {
<span class="kw">type</span> <span class="ident">Storage</span> <span class="op">=</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">boxed</span>::<span class="ident">Boxed</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>, <span class="ident">MemoryManager</span><span class="op">></span>;
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">to_glib_none_mut</span>(<span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">StashMut</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>, <span class="self">Self</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">stash</span> <span class="op">=</span> <span class="self">self</span>.<span class="number">0</span>.<span class="ident">to_glib_none_mut</span>();
<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">StashMut</span>(<span class="ident">stash</span>.<span class="number">0</span>, <span class="ident">stash</span>.<span class="number">1</span>)
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">FromGlibPtrNone</span><span class="op"><</span><span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">from_glib_none</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">from_glib_none</span>(<span class="ident">ptr</span>))
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">FromGlibPtrFull</span><span class="op"><</span><span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">from_glib_full</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">from_glib_full</span>(<span class="ident">ptr</span>))
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">FromGlibPtrBorrow</span><span class="op"><</span><span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">from_glib_borrow</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ffi_name</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">name</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">translate</span>::<span class="ident">from_glib_borrow</span>(<span class="ident">ptr</span>))
}
}
}
}
<span class="kw">enum</span> <span class="ident">AnyBox</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
<span class="ident">Native</span>(<span class="ident">Box</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>),
<span class="ident">ForeignOwned</span>(<span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>),
<span class="ident">ForeignBorrowed</span>(<span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>),
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">AnyBox</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="kw">use</span> <span class="self">self</span>::<span class="ident">AnyBox</span>::<span class="kw-2">*</span>;
<span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> {
<span class="ident">Native</span>(<span class="kw-2">ref</span> <span class="ident">b</span>) <span class="op">=></span> <span class="macro">write</span><span class="macro">!</span>(<span class="ident">f</span>, <span class="string">"Native({:?})"</span>, <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">b</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">T</span>),
<span class="ident">ForeignOwned</span>(<span class="ident">ptr</span>) <span class="op">=></span> <span class="macro">write</span><span class="macro">!</span>(<span class="ident">f</span>, <span class="string">"ForeignOwned({:?})"</span>, <span class="ident">ptr</span>),
<span class="ident">ForeignBorrowed</span>(<span class="ident">ptr</span>) <span class="op">=></span> <span class="macro">write</span><span class="macro">!</span>(<span class="ident">f</span>, <span class="string">"ForeignBorrowed({:?})"</span>, <span class="ident">ptr</span>),
}
}
}
<span class="doccomment">/// Memory management functions for a boxed type.</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>: <span class="lifetime">'static</span> {
<span class="doccomment">/// Makes a copy.</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">copy</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">T</span>) <span class="op">-></span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>;
<span class="doccomment">/// Frees the object.</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">free</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>);
}
<span class="doccomment">/// Encapsulates memory management logic for boxed types.</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> {
<span class="ident">inner</span>: <span class="ident">AnyBox</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>,
<span class="ident">_dummy</span>: <span class="ident">PhantomData</span><span class="op"><</span><span class="ident">MM</span><span class="op">></span>,
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">uninitialized</span>() <span class="op">-></span> <span class="self">Self</span> {
<span class="ident">Boxed</span> {
<span class="ident">inner</span>: <span class="ident">AnyBox</span>::<span class="ident">Native</span>(<span class="ident">Box</span>::<span class="ident">new</span>(<span class="ident">mem</span>::<span class="ident">uninitialized</span>())),
<span class="ident">_dummy</span>: <span class="ident">PhantomData</span>,
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">Uninitialized</span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">uninitialized</span>() <span class="op">-></span> <span class="self">Self</span> {
<span class="ident">Boxed</span> {
<span class="ident">inner</span>: <span class="ident">AnyBox</span>::<span class="ident">Native</span>(<span class="ident">Box</span>::<span class="ident">new</span>(<span class="ident">mem</span>::<span class="ident">uninitialized</span>())),
<span class="ident">_dummy</span>: <span class="ident">PhantomData</span>,
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">ToGlibPtr</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">T</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="kw">type</span> <span class="ident">Storage</span> <span class="op">=</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="self">Self</span>;
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">to_glib_none</span>(<span class="kw-2">&</span><span class="lifetime">'a</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Stash</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">T</span>, <span class="self">Self</span><span class="op">></span> {
<span class="kw">use</span> <span class="self">self</span>::<span class="ident">AnyBox</span>::<span class="kw-2">*</span>;
<span class="kw">let</span> <span class="ident">ptr</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">inner</span> {
<span class="ident">Native</span>(<span class="kw-2">ref</span> <span class="ident">b</span>) <span class="op">=></span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">b</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">T</span>,
<span class="ident">ForeignOwned</span>(<span class="ident">p</span>) <span class="op">|</span> <span class="ident">ForeignBorrowed</span>(<span class="ident">p</span>) <span class="op">=></span> <span class="ident">p</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">T</span>,
};
<span class="ident">Stash</span>(<span class="ident">ptr</span>, <span class="self">self</span>)
}
}
<span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">ToGlibPtrMut</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="kw">type</span> <span class="ident">Storage</span> <span class="op">=</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="self">Self</span>;
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">to_glib_none_mut</span>(<span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">StashMut</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>, <span class="self">Self</span><span class="op">></span> {
<span class="kw">use</span> <span class="self">self</span>::<span class="ident">AnyBox</span>::<span class="kw-2">*</span>;
<span class="kw">let</span> <span class="ident">ptr</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">inner</span> {
<span class="ident">Native</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">b</span>) <span class="op">=></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">b</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>,
<span class="ident">ForeignOwned</span>(<span class="ident">p</span>) <span class="op">|</span> <span class="ident">ForeignBorrowed</span>(<span class="ident">p</span>) <span class="op">=></span> <span class="ident">p</span>,
};
<span class="ident">StashMut</span>(<span class="ident">ptr</span>, <span class="self">self</span>)
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">FromGlibPtrNone</span><span class="op"><</span><span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">from_glib_none</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">ptr</span>.<span class="ident">is_null</span>());
<span class="kw">let</span> <span class="ident">ptr</span> <span class="op">=</span> <span class="ident">MM</span>::<span class="ident">copy</span>(<span class="ident">ptr</span>);
<span class="ident">from_glib_full</span>(<span class="ident">ptr</span>)
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">FromGlibPtrFull</span><span class="op"><</span><span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">from_glib_full</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">ptr</span>.<span class="ident">is_null</span>());
<span class="ident">Boxed</span> {
<span class="ident">inner</span>: <span class="ident">AnyBox</span>::<span class="ident">ForeignOwned</span>(<span class="ident">ptr</span>),
<span class="ident">_dummy</span>: <span class="ident">PhantomData</span>,
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">FromGlibPtrBorrow</span><span class="op"><</span><span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">from_glib_borrow</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">ptr</span>.<span class="ident">is_null</span>());
<span class="ident">Boxed</span> {
<span class="ident">inner</span>: <span class="ident">AnyBox</span>::<span class="ident">ForeignBorrowed</span>(<span class="ident">ptr</span>),
<span class="ident">_dummy</span>: <span class="ident">PhantomData</span>,
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">Drop</span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">drop</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) {
<span class="kw">unsafe</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">AnyBox</span>::<span class="ident">ForeignOwned</span>(<span class="ident">ptr</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">inner</span> {
<span class="ident">MM</span>::<span class="ident">free</span>(<span class="ident">ptr</span>);
}
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="macro">write</span><span class="macro">!</span>(<span class="ident">f</span>, <span class="string">"Boxed {{ inner: {:?} }}"</span>, <span class="self">self</span>.<span class="ident">inner</span>)
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">Clone</span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">clone</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="kw">unsafe</span> {
<span class="ident">from_glib_none</span>(<span class="self">self</span>.<span class="ident">to_glib_none</span>().<span class="number">0</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>)
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">Deref</span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="kw">type</span> <span class="ident">Target</span> <span class="op">=</span> <span class="ident">T</span>;
<span class="kw">fn</span> <span class="ident">deref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">T</span> {
<span class="kw">unsafe</span> {
<span class="comment">// This is safe because the pointer will remain valid while self is borrowed</span>
<span class="ident">mem</span>::<span class="ident">transmute</span>(<span class="self">self</span>.<span class="ident">to_glib_none</span>().<span class="number">0</span>)
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="lifetime">'static</span>, <span class="ident">MM</span>: <span class="ident">BoxedMemoryManager</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="ident">DerefMut</span> <span class="kw">for</span> <span class="ident">Boxed</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">MM</span><span class="op">></span> {
<span class="kw">fn</span> <span class="ident">deref_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">T</span> {
<span class="kw">unsafe</span> {
<span class="comment">// This is safe because the pointer will remain valid while self is borrowed</span>
<span class="ident">mem</span>::<span class="ident">transmute</span>(<span class="self">self</span>.<span class="ident">to_glib_none_mut</span>().<span class="number">0</span>)
}
}
}
</pre>
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