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1
2<style>
3body { margin: 0; }
4pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padding: 0.4em; }
5
6.lifetime { color: #DFAF8F; font-style: italic; }
7.comment { color: #7F9F7F; }
8.documentation { color: #629755; }
9.injected { opacity: 0.65 ; }
10.struct, .enum { color: #7CB8BB; }
11.enum_variant { color: #BDE0F3; }
12.string_literal { color: #CC9393; }
13.field { color: #94BFF3; }
14.function { color: #93E0E3; }
15.function.unsafe { color: #BC8383; }
16.operator.unsafe { color: #BC8383; }
17.parameter { color: #94BFF3; }
18.text { color: #DCDCCC; }
19.type { color: #7CB8BB; }
20.builtin_type { color: #8CD0D3; }
21.type_param { color: #DFAF8F; }
22.attribute { color: #94BFF3; }
23.numeric_literal { color: #BFEBBF; }
24.bool_literal { color: #BFE6EB; }
25.macro { color: #94BFF3; }
26.module { color: #AFD8AF; }
27.variable { color: #DCDCCC; }
28.format_specifier { color: #CC696B; }
29.mutable { text-decoration: underline; }
30.unresolved_reference { color: #FC5555; }
31.escape_sequence { color: #94BFF3; }
32
33.keyword { color: #F0DFAF; font-weight: bold; }
34.keyword.unsafe { color: #BC8383; font-weight: bold; }
35.control { font-style: italic; }
36</style>
37<pre><code><span class="attribute">#[</span><span class="function attribute">derive</span><span class="attribute">(Clone, Debug)]</span>
38<span class="keyword">struct</span> <span class="struct declaration">Foo</span> {
39 <span class="keyword">pub</span> <span class="field declaration">x</span>: <span class="builtin_type">i32</span>,
40 <span class="keyword">pub</span> <span class="field declaration">y</span>: <span class="builtin_type">i32</span>,
41}
42
43<span class="keyword">trait</span> <span class="trait declaration">Bar</span> {
44 <span class="keyword">fn</span> <span class="function declaration">bar</span>(&<span class="self_keyword">self</span>) -&gt; <span class="builtin_type">i32</span>;
45}
46
47<span class="keyword">impl</span> <span class="trait">Bar</span> <span class="keyword">for</span> <span class="struct">Foo</span> {
48 <span class="keyword">fn</span> <span class="function declaration">bar</span>(&<span class="self_keyword">self</span>) -&gt; <span class="builtin_type">i32</span> {
49 <span class="self_keyword">self</span>.<span class="field">x</span>
50 }
51}
52
53<span class="keyword">static</span> <span class="keyword">mut</span> <span class="static declaration mutable">STATIC_MUT</span>: <span class="builtin_type">i32</span> = <span class="numeric_literal">0</span>;
54
55<span class="keyword">fn</span> <span class="function declaration">foo</span>&lt;<span class="lifetime declaration">'a</span>, <span class="type_param declaration">T</span>&gt;() -&gt; <span class="type_param">T</span> {
56 <span class="function">foo</span>::&lt;<span class="lifetime">'a</span>, <span class="builtin_type">i32</span>&gt;()
57}
58
59<span class="macro">macro_rules!</span> <span class="macro declaration">def_fn</span> {
60 ($($tt:tt)*) =&gt; {$($tt)*}
61}
62
63<span class="macro">def_fn!</span> {
64 <span class="keyword">fn</span> <span class="function declaration">bar</span>() -&gt; <span class="builtin_type">u32</span> {
65 <span class="numeric_literal">100</span>
66 }
67}
68
69<span class="macro">macro_rules!</span> <span class="macro declaration">noop</span> {
70 ($expr:expr) =&gt; {
71 $expr
72 }
73}
74
75<span class="comment">// comment</span>
76<span class="keyword">fn</span> <span class="function declaration">main</span>() {
77 <span class="macro">println!</span>(<span class="string_literal">"Hello, {}!"</span>, <span class="numeric_literal">92</span>);
78
79 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">vec</span> = <span class="unresolved_reference">Vec</span>::<span class="unresolved_reference">new</span>();
80 <span class="keyword control">if</span> <span class="bool_literal">true</span> {
81 <span class="keyword">let</span> <span class="variable declaration">x</span> = <span class="numeric_literal">92</span>;
82 <span class="variable mutable">vec</span>.<span class="unresolved_reference">push</span>(<span class="struct">Foo</span> { <span class="field">x</span>, <span class="field">y</span>: <span class="numeric_literal">1</span> });
83 }
84 <span class="keyword unsafe">unsafe</span> {
85 <span class="variable mutable">vec</span>.<span class="unresolved_reference">set_len</span>(<span class="numeric_literal">0</span>);
86 <span class="static mutable">STATIC_MUT</span> = <span class="numeric_literal">1</span>;
87 }
88
89 <span class="keyword control">for</span> <span class="variable declaration">e</span> <span class="keyword control">in</span> <span class="variable mutable">vec</span> {
90 <span class="comment">// Do nothing</span>
91 }
92
93 <span class="macro">noop!</span>(<span class="macro">noop</span><span class="macro">!</span>(<span class="numeric_literal">1</span>));
94
95 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">x</span> = <span class="numeric_literal">42</span>;
96 <span class="keyword">let</span> <span class="variable declaration mutable">y</span> = &<span class="keyword">mut</span> <span class="variable mutable">x</span>;
97 <span class="keyword">let</span> <span class="variable declaration">z</span> = &<span class="variable mutable">y</span>;
98
99 <span class="keyword">let</span> <span class="struct">Foo</span> { <span class="field">x</span>: <span class="variable declaration">z</span>, <span class="field">y</span> } = <span class="struct">Foo</span> { <span class="field">x</span>: <span class="variable">z</span>, <span class="field">y</span> };
100
101 <span class="variable">y</span>;
102}
103
104<span class="keyword">enum</span> <span class="enum declaration">Option</span>&lt;<span class="type_param declaration">T</span>&gt; {
105 <span class="enum_variant declaration">Some</span>(<span class="type_param">T</span>),
106 <span class="enum_variant declaration">None</span>,
107}
108<span class="keyword">use</span> <span class="enum">Option</span>::*;
109
110<span class="keyword">impl</span>&lt;<span class="type_param declaration">T</span>&gt; <span class="enum">Option</span>&lt;<span class="type_param">T</span>&gt; {
111 <span class="keyword">fn</span> <span class="function declaration">and</span>&lt;<span class="type_param declaration">U</span>&gt;(<span class="self_keyword">self</span>, <span class="variable declaration">other</span>: <span class="enum">Option</span>&lt;<span class="type_param">U</span>&gt;) -&gt; <span class="enum">Option</span>&lt;(<span class="type_param">T</span>, <span class="type_param">U</span>)&gt; {
112 <span class="keyword control">match</span> <span class="variable">other</span> {
113 <span class="enum_variant">None</span> =&gt; <span class="macro">unimplemented!</span>(),
114 <span class="variable declaration">Nope</span> =&gt; <span class="variable">Nope</span>,
115 }
116 }
117}</code></pre> \ No newline at end of file
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