Add a mirror function-like proc-macro expander for tests

This commit is contained in:
Lukas Wirth 2021-09-21 14:55:54 +02:00
parent 8b1e8197fe
commit ba84b91e78
4 changed files with 45 additions and 10 deletions

View file

@ -64,10 +64,11 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
<span class="keyword">pub</span> <span class="keyword">trait</span> <span class="trait declaration public">Fn</span><span class="angle">&lt;</span><span class="type_param declaration">Args</span><span class="angle">&gt;</span><span class="colon">:</span> <span class="trait public">FnMut</span><span class="angle">&lt;</span><span class="type_param">Args</span><span class="angle">&gt;</span> <span class="brace">{</span><span class="brace">}</span>
<span class="brace">}</span>
<span class="keyword">struct</span> <span class="struct declaration">Foo</span> <span class="brace">{</span>
<span class="keyword">pub</span> <span class="field declaration public">x</span><span class="colon">:</span> <span class="builtin_type">i32</span><span class="comma">,</span>
<span class="keyword">pub</span> <span class="field declaration public">y</span><span class="colon">:</span> <span class="builtin_type">i32</span><span class="comma">,</span>
proc_macros::<span class="macro">mirror!</span> <span class="brace">{</span>
<span class="brace">{</span>
<span class="comma">,</span><span class="builtin_type">i32</span> <span class="colon">:</span><span class="field declaration public">x</span> <span class="keyword">pub</span>
<span class="comma">,</span><span class="builtin_type">i32</span> <span class="colon">:</span><span class="field declaration public">y</span> <span class="keyword">pub</span>
<span class="brace">}</span> <span class="struct declaration">Foo</span> <span class="keyword">struct</span>
<span class="brace">}</span>
<span class="keyword">trait</span> <span class="trait declaration">Bar</span> <span class="keyword">where</span> <span class="type_param">Self</span><span class="colon">:</span> <span class="brace">{</span>