/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
define(["require", "exports"], function (require, exports) {
    'use strict';
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.conf = {
        comments: {
            lineComment: '//',
            blockComment: ['/*', '*/'],
        },
        brackets: [
            ['{', '}'],
            ['[', ']'],
            ['(', ')']
        ],
        autoClosingPairs: [
            { open: '[', close: ']' },
            { open: '{', close: '}' },
            { open: '(', close: ')' },
            { open: '\'', close: '\'', notIn: ['string', 'comment'] },
            { open: '"', close: '"', notIn: ['string'] },
        ],
        surroundingPairs: [
            { open: '{', close: '}' },
            { open: '[', close: ']' },
            { open: '(', close: ')' },
            { open: '"', close: '"' },
            { open: '\'', close: '\'' },
        ],
        folding: {
            markers: {
                start: new RegExp("^\\s*#pragma\\s+region\\b"),
                end: new RegExp("^\\s*#pragma\\s+endregion\\b")
            }
        }
    };
    exports.language = {
        tokenPostfix: '.rust',
        defaultToken: 'invalid',
        keywords: [
            'as', 'box', 'break', 'const', 'continue', 'crate', 'else', 'enum',
            'extern', 'false', 'fn', 'for', 'if', 'impl', 'in', 'let', 'loop',
            'match', 'mod', 'move', 'mut', 'pub', 'ref', 'return', 'self',
            'static', 'struct', 'super', 'trait', 'true', 'type', 'unsafe', 'use',
            'where', 'while', 'catch', 'default', 'union', 'static', 'abstract',
            'alignof', 'become', 'do', 'final', 'macro', 'offsetof', 'override',
            'priv', 'proc', 'pure', 'sizeof', 'typeof', 'unsized', 'virtual',
            'yield',
        ],
        typeKeywords: [
            'Self', 'm32', 'm64', 'm128', 'f80', 'f16', 'f128', 'int', 'uint',
            'float', 'char', 'bool', 'u8', 'u16', 'u32', 'u64', 'f32', 'f64', 'i8',
            'i16', 'i32', 'i64', 'str', 'Option', 'Either', 'c_float', 'c_double',
            'c_void', 'FILE', 'fpos_t', 'DIR', 'dirent', 'c_char', 'c_schar',
            'c_uchar', 'c_short', 'c_ushort', 'c_int', 'c_uint', 'c_long',
            'c_ulong', 'size_t', 'ptrdiff_t', 'clock_t', 'time_t', 'c_longlong',
            'c_ulonglong', 'intptr_t', 'uintptr_t', 'off_t', 'dev_t', 'ino_t',
            'pid_t', 'mode_t', 'ssize_t',
        ],
        constants: [
            'true', 'false', 'Some', 'None', 'Left', 'Right', 'Ok', 'Err',
        ],
        supportConstants: [
            'EXIT_FAILURE', 'EXIT_SUCCESS', 'RAND_MAX', 'EOF', 'SEEK_SET',
            'SEEK_CUR', 'SEEK_END', '_IOFBF', '_IONBF', '_IOLBF', 'BUFSIZ',
            'FOPEN_MAX', 'FILENAME_MAX', 'L_tmpnam', 'TMP_MAX', 'O_RDONLY',
            'O_WRONLY', 'O_RDWR', 'O_APPEND', 'O_CREAT', 'O_EXCL', 'O_TRUNC',
            'S_IFIFO', 'S_IFCHR', 'S_IFBLK', 'S_IFDIR', 'S_IFREG', 'S_IFMT',
            'S_IEXEC', 'S_IWRITE', 'S_IREAD', 'S_IRWXU', 'S_IXUSR', 'S_IWUSR',
            'S_IRUSR', 'F_OK', 'R_OK', 'W_OK', 'X_OK', 'STDIN_FILENO',
            'STDOUT_FILENO', 'STDERR_FILENO',
        ],
        supportMacros: [
            'format!', 'print!', 'println!', 'panic!', 'format_args!', 'unreachable!',
            'write!', 'writeln!'
        ],
        operators: [
            '!', '!=', '%', '%=', '&', '&=', '&&', '*', '*=', '+', '+=', '-', '-=',
            '->', '.', '..', '...', '/', '/=', ':', ';', '<<', '<<=', '<', '<=', '=',
            '==', '=>', '>', '>=', '>>', '>>=', '@', '^', '^=', '|', '|=', '||', '_',
            '?', '#'
        ],
        escapes: /\\([nrt0\"''\\]|x\h{2}|u\{\h{1,6}\})/,
        delimiters: /[,]/,
        symbols: /[\#\!\%\&\*\+\-\.\/\:\;\<\=\>\@\^\|_\?]+/,
        intSuffixes: /[iu](8|16|32|64|128|size)/,
        floatSuffixes: /f(32|64)/,
        tokenizer: {
            root: [
                [/[a-zA-Z][a-zA-Z0-9_]*!?|_[a-zA-Z0-9_]+/,
                    {
                        cases: {
                            '@typeKeywords': 'keyword.type',
                            '@keywords': 'keyword',
                            '@supportConstants': 'keyword',
                            '@supportMacros': 'keyword',
                            '@constants': 'keyword',
                            '@default': 'identifier',
                        }
                    }
                ],
                // Designator
                [/\$/, 'identifier'],
                // Lifetime annotations
                [/'[a-zA-Z_][a-zA-Z0-9_]*(?=[^\'])/, 'identifier'],
                // Byte literal
                [/'\S'/, 'string.byteliteral'],
                // Strings
                [/"/, { token: 'string.quote', bracket: '@open', next: '@string' }],
                { include: '@numbers' },
                // Whitespace + comments
                { include: '@whitespace' },
                [/@delimiters/, {
                        cases: {
                            '@keywords': 'keyword',
                            '@default': 'delimiter'
                        }
                    }],
                [/[{}()\[\]<>]/, '@brackets'],
                [/@symbols/, { cases: { '@operators': 'operator', '@default': '' } }],
            ],
            whitespace: [
                [/[ \t\r\n]+/, 'white'],
                [/\/\*/, 'comment', '@comment'],
                [/\/\/.*$/, 'comment'],
            ],
            comment: [
                [/[^\/*]+/, 'comment'],
                [/\/\*/, 'comment', '@push'],
                ["\\*/", 'comment', '@pop'],
                [/[\/*]/, 'comment']
            ],
            string: [
                [/[^\\"]+/, 'string'],
                [/@escapes/, 'string.escape'],
                [/\\./, 'string.escape.invalid'],
                [/"/, { token: 'string.quote', bracket: '@close', next: '@pop' }]
            ],
            numbers: [
                //Octal
                [/(0o[0-7_]+)(@intSuffixes)?/, { token: 'number' }],
                //Binary
                [/(0b[0-1_]+)(@intSuffixes)?/, { token: 'number' }],
                //Exponent
                [/[\d][\d_]*(\.[\d][\d_]*)?[eE][+-][\d_]+(@floatSuffixes)?/, { token: 'number' }],
                //Float
                [/\b(\d\.?[\d_]*)(@floatSuffixes)?\b/, { token: 'number' }],
                //Hexadecimal
                [/(0x[\da-fA-F]+)_?(@intSuffixes)?/, { token: 'number' }],
                //Integer
                [/[\d][\d_]*(@intSuffixes?)?/, { token: 'number' }],
            ]
        }
    };
});
