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/*
Language: Rust
Author: Andrey Vlasovskikh <andrey.vlasovskikh@gmail.com>
Contributors: Roman Shmatov <romanshmatov@gmail.com>, Kasper Andersen <kma_untrusted@protonmail.com>
Website: https://www.rust-lang.org
Category: common, system
*/
/** @type LanguageFn */
function rust(hljs) {
const regex = hljs.regex;
const FUNCTION_INVOKE = {
className: "title.function.invoke",
relevance: 0,
begin: regex.concat(
/\b/,
/(?!let\b)/,
hljs.IDENT_RE,
regex.lookahead(/\s*\(/))
};
const NUMBER_SUFFIX = '([ui](8|16|32|64|128|size)|f(32|64))\?';
const KEYWORDS = [
"abstract",
"as",
"async",
"await",
"become",
"box",
"break",
"const",
"continue",
"crate",
"do",
"dyn",
"else",
"enum",
"extern",
"false",
"final",
"fn",
"for",
"if",
"impl",
"in",
"let",
"loop",
"macro",
"match",
"mod",
"move",
"mut",
"override",
"priv",
"pub",
"ref",
"return",
"self",
"Self",
"static",
"struct",
"super",
"trait",
"true",
"try",
"type",
"typeof",
"unsafe",
"unsized",
"use",
"virtual",
"where",
"while",
"yield"
];
const LITERALS = [
"true",
"false",
"Some",
"None",
"Ok",
"Err"
];
const BUILTINS = [
// functions
'drop ',
// traits
"Copy",
"Send",
"Sized",
"Sync",
"Drop",
"Fn",
"FnMut",
"FnOnce",
"ToOwned",
"Clone",
"Debug",
"PartialEq",
"PartialOrd",
"Eq",
"Ord",
"AsRef",
"AsMut",
"Into",
"From",
"Default",
"Iterator",
"Extend",
"IntoIterator",
"DoubleEndedIterator",
"ExactSizeIterator",
"SliceConcatExt",
"ToString",
// macros
"assert!",
"assert_eq!",
"bitflags!",
"bytes!",
"cfg!",
"col!",
"concat!",
"concat_idents!",
"debug_assert!",
"debug_assert_eq!",
"env!",
"panic!",
"file!",
"format!",
"format_args!",
"include_bytes!",
"include_str!",
"line!",
"local_data_key!",
"module_path!",
"option_env!",
"print!",
"println!",
"select!",
"stringify!",
"try!",
"unimplemented!",
"unreachable!",
"vec!",
"write!",
"writeln!",
"macro_rules!",
"assert_ne!",
"debug_assert_ne!"
];
const TYPES = [
"i8",
"i16",
"i32",
"i64",
"i128",
"isize",
"u8",
"u16",
"u32",
"u64",
"u128",
"usize",
"f32",
"f64",
"str",
"char",
"bool",
"Box",
"Option",
"Result",
"String",
"Vec"
];
return {
name: 'Rust',
aliases: [ 'rs' ],
keywords: {
$pattern: hljs.IDENT_RE + '!?',
type: TYPES,
keyword: KEYWORDS,
literal: LITERALS,
built_in: BUILTINS
},
illegal: '</',
contains: [
hljs.C_LINE_COMMENT_MODE,
hljs.COMMENT('/\\*', '\\*/', { contains: [ 'self' ] }),
hljs.inherit(hljs.QUOTE_STRING_MODE, {
begin: /b?"/,
illegal: null
}),
{
className: 'string',
variants: [
{ begin: /b?r(#*)"(.|\n)*?"\1(?!#)/ },
{ begin: /b?'\\?(x\w{2}|u\w{4}|U\w{8}|.)'/ }
]
},
{
className: 'symbol',
begin: /'[a-zA-Z_][a-zA-Z0-9_]*/
},
{
className: 'number',
variants: [
{ begin: '\\b0b([01_]+)' + NUMBER_SUFFIX },
{ begin: '\\b0o([0-7_]+)' + NUMBER_SUFFIX },
{ begin: '\\b0x([A-Fa-f0-9_]+)' + NUMBER_SUFFIX },
{ begin: '\\b(\\d[\\d_]*(\\.[0-9_]+)?([eE][+-]?[0-9_]+)?)'
+ NUMBER_SUFFIX }
],
relevance: 0
},
{
begin: [
/fn/,
/\s+/,
hljs.UNDERSCORE_IDENT_RE
],
className: {
1: "keyword",
3: "title.function"
}
},
{
className: 'meta',
begin: '#!?\\[',
end: '\\]',
contains: [
{
className: 'string',
begin: /"/,
end: /"/
}
]
},
{
begin: [
/let/,
/\s+/,
/(?:mut\s+)?/,
hljs.UNDERSCORE_IDENT_RE
],
className: {
1: "keyword",
3: "keyword",
4: "variable"
}
},
// must come before impl/for rule later
{
begin: [
/for/,
/\s+/,
hljs.UNDERSCORE_IDENT_RE,
/\s+/,
/in/
],
className: {
1: "keyword",
3: "variable",
5: "keyword"
}
},
{
begin: [
/type/,
/\s+/,
hljs.UNDERSCORE_IDENT_RE
],
className: {
1: "keyword",
3: "title.class"
}
},
{
begin: [
/(?:trait|enum|struct|union|impl|for)/,
/\s+/,
hljs.UNDERSCORE_IDENT_RE
],
className: {
1: "keyword",
3: "title.class"
}
},
{
begin: hljs.IDENT_RE + '::',
keywords: {
keyword: "Self",
built_in: BUILTINS,
type: TYPES
}
},
{
className: "punctuation",
begin: '->'
},
FUNCTION_INVOKE
]
};
}
export { rust as default };
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