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Diffstat (limited to 'tools/node_modules/eslint/node_modules/babel-code-frame/lib/index.js')
| -rw-r--r-- | tools/node_modules/eslint/node_modules/babel-code-frame/lib/index.js | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/babel-code-frame/lib/index.js b/tools/node_modules/eslint/node_modules/babel-code-frame/lib/index.js new file mode 100644 index 0000000000..ff49b9082c --- /dev/null +++ b/tools/node_modules/eslint/node_modules/babel-code-frame/lib/index.js @@ -0,0 +1,141 @@ +"use strict"; + +exports.__esModule = true; + +exports.default = function (rawLines, lineNumber, colNumber) { + var opts = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {}; + + colNumber = Math.max(colNumber, 0); + + var highlighted = opts.highlightCode && _chalk2.default.supportsColor || opts.forceColor; + var chalk = _chalk2.default; + if (opts.forceColor) { + chalk = new _chalk2.default.constructor({ enabled: true }); + } + var maybeHighlight = function maybeHighlight(chalkFn, string) { + return highlighted ? chalkFn(string) : string; + }; + var defs = getDefs(chalk); + if (highlighted) rawLines = highlight(defs, rawLines); + + var linesAbove = opts.linesAbove || 2; + var linesBelow = opts.linesBelow || 3; + + var lines = rawLines.split(NEWLINE); + var start = Math.max(lineNumber - (linesAbove + 1), 0); + var end = Math.min(lines.length, lineNumber + linesBelow); + + if (!lineNumber && !colNumber) { + start = 0; + end = lines.length; + } + + var numberMaxWidth = String(end).length; + + var frame = lines.slice(start, end).map(function (line, index) { + var number = start + 1 + index; + var paddedNumber = (" " + number).slice(-numberMaxWidth); + var gutter = " " + paddedNumber + " | "; + if (number === lineNumber) { + var markerLine = ""; + if (colNumber) { + var markerSpacing = line.slice(0, colNumber - 1).replace(/[^\t]/g, " "); + markerLine = ["\n ", maybeHighlight(defs.gutter, gutter.replace(/\d/g, " ")), markerSpacing, maybeHighlight(defs.marker, "^")].join(""); + } + return [maybeHighlight(defs.marker, ">"), maybeHighlight(defs.gutter, gutter), line, markerLine].join(""); + } else { + return " " + maybeHighlight(defs.gutter, gutter) + line; + } + }).join("\n"); + + if (highlighted) { + return chalk.reset(frame); + } else { + return frame; + } +}; + +var _jsTokens = require("js-tokens"); + +var _jsTokens2 = _interopRequireDefault(_jsTokens); + +var _esutils = require("esutils"); + +var _esutils2 = _interopRequireDefault(_esutils); + +var _chalk = require("chalk"); + +var _chalk2 = _interopRequireDefault(_chalk); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +function getDefs(chalk) { + return { + keyword: chalk.cyan, + capitalized: chalk.yellow, + jsx_tag: chalk.yellow, + punctuator: chalk.yellow, + + number: chalk.magenta, + string: chalk.green, + regex: chalk.magenta, + comment: chalk.grey, + invalid: chalk.white.bgRed.bold, + gutter: chalk.grey, + marker: chalk.red.bold + }; +} + +var NEWLINE = /\r\n|[\n\r\u2028\u2029]/; + +var JSX_TAG = /^[a-z][\w-]*$/i; + +var BRACKET = /^[()\[\]{}]$/; + +function getTokenType(match) { + var _match$slice = match.slice(-2), + offset = _match$slice[0], + text = _match$slice[1]; + + var token = (0, _jsTokens.matchToToken)(match); + + if (token.type === "name") { + if (_esutils2.default.keyword.isReservedWordES6(token.value)) { + return "keyword"; + } + + if (JSX_TAG.test(token.value) && (text[offset - 1] === "<" || text.substr(offset - 2, 2) == "</")) { + return "jsx_tag"; + } + + if (token.value[0] !== token.value[0].toLowerCase()) { + return "capitalized"; + } + } + + if (token.type === "punctuator" && BRACKET.test(token.value)) { + return "bracket"; + } + + return token.type; +} + +function highlight(defs, text) { + return text.replace(_jsTokens2.default, function () { + for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) { + args[_key] = arguments[_key]; + } + + var type = getTokenType(args); + var colorize = defs[type]; + if (colorize) { + return args[0].split(NEWLINE).map(function (str) { + return colorize(str); + }).join("\n"); + } else { + return args[0]; + } + }); +} + +module.exports = exports["default"];
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