{
  "name": "Rust",
  "scopeName": "source.rust",
  "fileTypes": [
    "rs"
  ],
  "repository": {
    "block_doc_comment": {
      "comment": "Block documentation comment",
      "name": "comment.block.documentation.rust",
      "begin": "/\\*[\\*!](?![\\*/])",
      "end": "\\*/",
      "patterns": [
        {
          "include": "#block_doc_comment"
        },
        {
          "include": "#block_comment"
        }
      ]
    },
    "block_comment": {
      "comment": "Block comment",
      "name": "comment.block.rust",
      "begin": "/\\*",
      "end": "\\*/",
      "patterns": [
        {
          "include": "#block_doc_comment"
        },
        {
          "include": "#block_comment"
        }
      ]
    },
    "line_doc_comment": {
      "comment": "Single-line documentation comment",
      "name": "comment.line.documentation.rust",
      "begin": "//[!/](?=[^/])",
      "end": "$"
    },
    "line_comment": {
      "comment": "Single-line comment",
      "name": "comment.line.double-slash.rust",
      "begin": "//",
      "end": "$"
    },
    "escaped_character": {
      "name": "constant.character.escape.rust",
      "match": "\\\\(x[0-9A-Fa-f]{2}|[0-2][0-7]{0,2}|3[0-6][0-7]?|37[0-7]?|[4-7][0-7]?|.)"
    },
    "string_literal": {
      "comment": "Double-quote string literal",
      "name": "string.quoted.double.rust",
      "begin": "b?\"",
      "end": "\"",
      "patterns": [
        {
          "include": "#escaped_character"
        }
      ]
    },
    "raw_string_literal": {
      "comment": "Raw double-quote string literal",
      "name": "string.quoted.double.raw.rust",
      "begin": "b?r(#*)\"",
      "end": "\"\\1"
    },
    "sigils": {
      "comment": "Sigil",
      "name": "keyword.operator.sigil.rust",
      "match": "[&*](?=[a-zA-Z0-9_\\(\\[\\|\\\"]+)"
    },
    "self": {
      "comment": "Self variable",
      "name": "variable.language.rust",
      "match": "\\bself\\b"
    },
    "mut": {
      "comment": "Mutable storage modifier",
      "name": "storage.modifier.mut.rust",
      "match": "\\bmut\\b"
    },
    "box": {
      "comment": "Box storage modifier",
      "name": "storage.modifier.box.rust",
      "match": "\\bbox\\b"
    },
    "const": {
      "comment": "Const storage modifier",
      "name": "storage.modifier.const.rust",
      "match": "\\bconst\\b"
    },
    "pub": {
      "comment": "Visibility modifier",
      "name": "storage.modifier.visibility.rust",
      "match": "\\bpub\\b"
    },
    "unsafe": {
      "comment": "Unsafe code keyword",
      "name": "keyword.other.unsafe.rust",
      "match": "\\bunsafe\\b"
    },
    "where": {
      "comment": "Generic where clause",
      "name": "keyword.other.where.rust",
      "match": "\\bwhere\\b"
    },
    "lifetime": {
      "comment": "Named lifetime",
      "name": "storage.modifier.lifetime.rust",
      "match": "'([a-zA-Z_][a-zA-Z0-9_]*)\\b",
      "captures": {
        "1": {
          "name": "entity.name.lifetime.rust"
        }
      }
    },
    "ref_lifetime": {
      "comment": "Reference with named lifetime",
      "match": "&('([a-zA-Z_][a-zA-Z0-9_]*))\\b",
      "captures": {
        "1": {
          "name": "storage.modifier.lifetime.rust"
        },
        "2": {
          "name": "entity.name.lifetime.rust"
        }
      }
    },
    "core_types": {
      "comment": "Built-in/core type",
      "name": "storage.type.core.rust",
      "match": "\\b(bool|char|usize|isize|u8|u16|u32|u64|u128|i8|i16|i32|i64|i128|f32|f64|str|Self|Option|Result)\\b"
    },
    "core_vars": {
      "comment": "Core type variant",
      "name": "support.constant.core.rust",
      "match": "\\b(Some|None|Ok|Err)\\b"
    },
    "core_marker": {
      "comment": "Core trait (marker)",
      "name": "support.type.marker.rust",
      "match": "\\b(Copy|Send|Sized|Sync)\\b"
    },
    "core_traits": {
      "comment": "Core trait",
      "name": "support.type.core.rust",
      "match": "\\b(Drop|Fn|FnMut|FnOnce|Clone|PartialEq|PartialOrd|Eq|Ord|AsRef|AsMut|Into|From|Default|Iterator|Extend|IntoIterator|DoubleEndedIterator|ExactSizeIterator)\\b"
    },
    "std_types": {
      "comment": "Standard library type",
      "name": "storage.class.std.rust",
      "match": "\\b(Box|String|Vec|Path|PathBuf)\\b"
    },
    "std_traits": {
      "comment": "Standard library trait",
      "name": "support.type.std.rust",
      "match": "\\b(ToOwned|ToString)\\b"
    },
    "type": {
      "comment": "A type",
      "name": "entity.name.type.rust",
      "match": "\\b([A-Za-z][_A-Za-z0-9]*|_[_A-Za-z0-9]+)\\b"
    },
    "type_params": {
      "comment": "Type parameters",
      "name": "meta.type_params.rust",
      "begin": "<(?![=<])",
      "end": "(?<![-])>",
      "patterns": [
        {
          "include": "#block_comment"
        },
        {
          "include": "#line_comment"
        },
        {
          "include": "#sigils"
        },
        {
          "include": "#mut"
        },
        {
          "include": "#lifetime"
        },
        {
          "include": "#core_types"
        },
        {
          "include": "#core_marker"
        },
        {
          "include": "#core_traits"
        },
        {
          "include": "#std_types"
        },
        {
          "include": "#std_traits"
        },
        {
          "include": "#type_params"
        }
      ]
    }
  },
  "patterns": [
    {
      "comment": "Implementation",
      "begin": "\\b(impl)\\b",
      "end": "\\{",
      "beginCaptures": {
        "1": {
          "name": "storage.type.rust"
        }
      },
      "patterns": [
        {
          "include": "#block_comment"
        },
        {
          "include": "#line_comment"
        },
        {
          "include": "#sigils"
        },
        {
          "include": "#mut"
        },
        {
          "include": "#ref_lifetime"
        },
        {
          "include": "#core_types"
        },
        {
          "include": "#core_marker"
        },
        {
          "include": "#core_traits"
        },
        {
          "include": "#std_types"
        },
        {
          "include": "#std_traits"
        },
        {
          "include": "#type_params"
        },
        {
          "include": "#where"
        },
        {
          "name": "storage.type.rust",
          "match": "\\bfor\\b"
        },
        {
          "include": "#type"
        }
      ]
    },
    {
      "include": "#block_doc_comment"
    },
    {
      "include": "#block_comment"
    },
    {
      "include": "#line_doc_comment"
    },
    {
      "include": "#line_comment"
    },
    {
      "comment": "Attribute",
      "name": "meta.attribute.rust",
      "begin": "#\\!?\\[",
      "end": "\\]",
      "patterns": [
        {
          "include": "#string_literal"
        },
        {
          "include": "#block_doc_comment"
        },
        {
          "include": "#block_comment"
        },
        {
          "include": "#line_doc_comment"
        },
        {
          "include": "#line_comment"
        }
      ]
    },
    {
      "comment": "Single-quote string literal (character)",
      "name": "string.quoted.single.rust",
      "match": "b?'([^'\\\\]|\\\\(x[0-9A-Fa-f]{2}|[0-2][0-7]{0,2}|3[0-6][0-7]?|37[0-7]?|[4-7][0-7]?|.))'"
    },
    {
      "include": "#string_literal"
    },
    {
      "include": "#raw_string_literal"
    },
    {
      "comment": "Floating point literal (fraction)",
      "name": "constant.numeric.float.rust",
      "match": "\\b[0-9][0-9_]*\\.[0-9][0-9_]*([eE][+-]?[0-9_]+)?(f32|f64)?\\b"
    },
    {
      "comment": "Floating point literal (exponent)",
      "name": "constant.numeric.float.rust",
      "match": "\\b[0-9][0-9_]*(\\.[0-9][0-9_]*)?[eE][+-]?[0-9_]+(f32|f64)?\\b"
    },
    {
      "comment": "Floating point literal (typed)",
      "name": "constant.numeric.float.rust",
      "match": "\\b[0-9][0-9_]*(\\.[0-9][0-9_]*)?([eE][+-]?[0-9_]+)?(f32|f64)\\b"
    },
    {
      "comment": "Integer literal (decimal)",
      "name": "constant.numeric.integer.decimal.rust",
      "match": "\\b[0-9][0-9_]*([ui](8|16|32|64|128|s|size))?\\b"
    },
    {
      "comment": "Integer literal (hexadecimal)",
      "name": "constant.numeric.integer.hexadecimal.rust",
      "match": "\\b0x[a-fA-F0-9_]+([ui](8|16|32|64|128|s|size))?\\b"
    },
    {
      "comment": "Integer literal (octal)",
      "name": "constant.numeric.integer.octal.rust",
      "match": "\\b0o[0-7_]+([ui](8|16|32|64|128|s|size))?\\b"
    },
    {
      "comment": "Integer literal (binary)",
      "name": "constant.numeric.integer.binary.rust",
      "match": "\\b0b[01_]+([ui](8|16|32|64|128|s|size))?\\b"
    },
    {
      "comment": "Static storage modifier",
      "name": "storage.modifier.static.rust",
      "match": "\\bstatic\\b"
    },
    {
      "comment": "Boolean constant",
      "name": "constant.language.boolean.rust",
      "match": "\\b(true|false)\\b"
    },
    {
      "comment": "Control keyword",
      "name": "keyword.control.rust",
      "match": "\\b(break|continue|else|if|in|for|loop|match|return|while)\\b"
    },
    {
      "comment": "Keyword",
      "name": "keyword.other.rust",
      "match": "\\b(crate|extern|mod|let|ref|use|super|move)\\b"
    },
    {
      "comment": "Reserved keyword",
      "name": "invalid.deprecated.rust",
      "match": "\\b(abstract|alignof|become|do|final|macro|offsetof|override|priv|proc|pure|sizeof|typeof|virtual|yield)\\b"
    },
    {
      "include": "#unsafe"
    },
    {
      "include": "#sigils"
    },
    {
      "include": "#self"
    },
    {
      "include": "#mut"
    },
    {
      "include": "#box"
    },
    {
      "include": "#lifetime"
    },
    {
      "include": "#ref_lifetime"
    },
    {
      "include": "#const"
    },
    {
      "include": "#pub"
    },
    {
      "comment": "Miscellaneous operator",
      "name": "keyword.operator.misc.rust",
      "match": "(=>|::|\\bas\\b)"
    },
    {
      "comment": "Comparison operator",
      "name": "keyword.operator.comparison.rust",
      "match": "(&&|\\|\\||==|!=)"
    },
    {
      "comment": "Assignment operator",
      "name": "keyword.operator.assignment.rust",
      "match": "(\\+=|-=|/=|\\*=|%=|\\^=|&=|\\|=|<<=|>>=|=)"
    },
    {
      "comment": "Arithmetic operator",
      "name": "keyword.operator.arithmetic.rust",
      "match": "(!|\\+|-|/|\\*|%|\\^|&|\\||<<|>>)"
    },
    {
      "comment": "Comparison operator (second group because of regex precedence)",
      "name": "keyword.operator.comparison.rust",
      "match": "(<=|>=|<|>)"
    },
    {
      "include": "#core_types"
    },
    {
      "include": "#core_vars"
    },
    {
      "include": "#core_marker"
    },
    {
      "include": "#core_traits"
    },
    {
      "include": "#std_types"
    },
    {
      "include": "#std_traits"
    },
    {
      "comment": "Built-in macro",
      "name": "support.function.builtin.rust",
      "match": "\\b(macro_rules|format_args|env|option_env|concat_idents|concat|log_syntax|line|column|file|stringify|include|include_str|include_bytes|module_path|asm|cfg|trace_macros)!"
    },
    {
      "comment": "Core macro",
      "name": "support.function.core.rust",
      "match": "\\b(panic|assert|assert_eq|debug_assert|debug_assert_eq|try|write|writeln|unreachable|unimplemented)!"
    },
    {
      "comment": "Standard library macro",
      "name": "support.function.std.rust",
      "match": "\\b(format|print|println|select|vec)!"
    },
    {
      "comment": "Logging macro",
      "name": "support.function.log.rust",
      "match": "\\b(log|error|warn|info|debug|trace|log_enabled)!"
    },
    {
      "comment": "Invokation of a macro",
      "match": "\\b([a-zA-Z_][a-zA-Z0-9_]*\\!)\\s*[({\\[]",
      "captures": {
        "1": {
          "name": "entity.name.function.macro.rust"
        }
      }
    },
    {
      "comment": "Function call",
      "match": "\\b([A-Za-z][A-Za-z0-9_]*|_[A-Za-z0-9_]+)\\s*\\(",
      "captures": {
        "1": {
          "name": "entity.name.function.rust"
        }
      }
    },
    {
      "comment": "Function call with type parameters",
      "begin": "\\b([A-Za-z][A-Za-z0-9_]*|_[A-Za-z0-9_]+)\\s*(::)(?=\\s*<.*>\\s*\\()",
      "end": "\\(",
      "captures": {
        "1": {
          "name": "entity.name.function.rust"
        },
        "2": {
          "name": "keyword.operator.misc.rust"
        }
      },
      "patterns": [
        {
          "include": "#type_params"
        }
      ]
    },
    {
      "comment": "Function definition",
      "begin": "\\b(fn)\\s+([A-Za-z][A-Za-z0-9_]*|_[A-Za-z0-9_]+)",
      "end": "[\\{;]",
      "beginCaptures": {
        "1": {
          "name": "keyword.other.fn.rust"
        },
        "2": {
          "name": "entity.name.function.rust"
        }
      },
      "patterns": [
        {
          "include": "#block_comment"
        },
        {
          "include": "#line_comment"
        },
        {
          "include": "#sigils"
        },
        {
          "include": "#self"
        },
        {
          "include": "#mut"
        },
        {
          "include": "#ref_lifetime"
        },
        {
          "include": "#core_types"
        },
        {
          "include": "#core_marker"
        },
        {
          "include": "#core_traits"
        },
        {
          "include": "#std_types"
        },
        {
          "include": "#std_traits"
        },
        {
          "include": "#type_params"
        },
        {
          "include": "#const"
        },
        {
          "include": "#where"
        },
        {
          "include": "#unsafe"
        },
        {
          "comment": "Function arguments",
          "match": "\bfn\b",
          "name": "keyword.other.fn.rust"
        }
      ]
    },
    {
      "comment": "Type declaration",
      "begin": "\\b(enum|struct|trait|union)\\s+([a-zA-Z_][a-zA-Z0-9_]*)",
      "end": "[\\{\\(;]",
      "beginCaptures": {
        "1": {
          "name": "storage.type.rust"
        },
        "2": {
          "name": "entity.name.type.rust"
        }
      },
      "patterns": [
        {
          "include": "#block_comment"
        },
        {
          "include": "#line_comment"
        },
        {
          "include": "#core_traits"
        },
        {
          "include": "#std_traits"
        },
        {
          "include": "#type_params"
        },
        {
          "include": "#core_types"
        },
        {
          "include": "#pub"
        },
        {
          "include": "#where"
        }
      ]
    },
    {
      "comment": "Type alias",
      "begin": "\\b(type)\\s+([a-zA-Z_][a-zA-Z0-9_]*)",
      "end": ";",
      "beginCaptures": {
        "1": {
          "name": "storage.type.rust"
        },
        "2": {
          "name": "entity.name.type.rust"
        }
      },
      "patterns": [
        {
          "include": "#block_comment"
        },
        {
          "include": "#line_comment"
        },
        {
          "include": "#sigils"
        },
        {
          "include": "#mut"
        },
        {
          "include": "#lifetime"
        },
        {
          "include": "#ref_lifetime"
        },
        {
          "include": "#core_types"
        },
        {
          "include": "#core_marker"
        },
        {
          "include": "#core_traits"
        },
        {
          "include": "#std_types"
        },
        {
          "include": "#std_traits"
        },
        {
          "include": "#type_params"
        }
      ]
    }
  ]
}