bloom-layout/example/node_modules/@babel/code-frame/lib/index.js

layout components used in bloom packages

"use strict";

exports.__esModule = true;
exports.codeFrameColumns = codeFrameColumns;
exports.default = _default;

var _jsTokens = _interopRequireWildcard(require("js-tokens"));

var _esutils = _interopRequireDefault(require("esutils"));

var _chalk = _interopRequireDefault(require("chalk"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }

var deprecationWarningShown = false;

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 (_esutils.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";
  }

  if (token.type === "invalid" && (token.value === "@" || token.value === "#")) {
    return "punctuator";
  }

  return token.type;
}

function highlight(defs, text) {
  return text.replace(_jsTokens.default, function () {
    for (var _len = arguments.length, args = new 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];
    }
  });
}

function getMarkerLines(loc, source, opts) {
  var startLoc = Object.assign({}, {
    column: 0,
    line: -1
  }, loc.start);
  var endLoc = Object.assign({}, startLoc, loc.end);
  var linesAbove = opts.linesAbove || 2;
  var linesBelow = opts.linesBelow || 3;
  var startLine = startLoc.line;
  var startColumn = startLoc.column;
  var endLine = endLoc.line;
  var endColumn = endLoc.column;
  var start = Math.max(startLine - (linesAbove + 1), 0);
  var end = Math.min(source.length, endLine + linesBelow);

  if (startLine === -1) {
    start = 0;
  }

  if (endLine === -1) {
    end = source.length;
  }

  var lineDiff = endLine - startLine;
  var markerLines = {};

  if (lineDiff) {
    for (var i = 0; i <= lineDiff; i++) {
      var lineNumber = i + startLine;

      if (!startColumn) {
        markerLines[lineNumber] = true;
      } else if (i === 0) {
        var sourceLength = source[lineNumber - 1].length;
        markerLines[lineNumber] = [startColumn, sourceLength - startColumn];
      } else if (i === lineDiff) {
        markerLines[lineNumber] = [0, endColumn];
      } else {
        var _sourceLength = source[lineNumber - i].length;
        markerLines[lineNumber] = [0, _sourceLength];
      }
    }
  } else {
    if (startColumn === endColumn) {
      if (startColumn) {
        markerLines[startLine] = [startColumn, 0];
      } else {
        markerLines[startLine] = true;
      }
    } else {
      markerLines[startLine] = [startColumn, endColumn - startColumn];
    }
  }

  return {
    start: start,
    end: end,
    markerLines: markerLines
  };
}

function codeFrameColumns(rawLines, loc, opts) {
  if (opts === void 0) {
    opts = {};
  }

  var highlighted = opts.highlightCode && _chalk.default.supportsColor || opts.forceColor;
  var chalk = _chalk.default;

  if (opts.forceColor) {
    chalk = new _chalk.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 lines = rawLines.split(NEWLINE);

  var _getMarkerLines = getMarkerLines(loc, lines, opts),
      start = _getMarkerLines.start,
      end = _getMarkerLines.end,
      markerLines = _getMarkerLines.markerLines;

  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 + " | ";
    var hasMarker = markerLines[number];

    if (hasMarker) {
      var markerLine = "";

      if (Array.isArray(hasMarker)) {
        var markerSpacing = line.slice(0, Math.max(hasMarker[0] - 1, 0)).replace(/[^\t]/g, " ");
        var numberOfMarkers = hasMarker[1] || 1;
        markerLine = ["\n ", maybeHighlight(defs.gutter, gutter.replace(/\d/g, " ")), markerSpacing, maybeHighlight(defs.marker, "^").repeat(numberOfMarkers)].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;
  }
}

function _default(rawLines, lineNumber, colNumber, opts) {
  if (opts === void 0) {
    opts = {};
  }

  if (!deprecationWarningShown) {
    deprecationWarningShown = true;
    var deprecationError = new Error("Passing lineNumber and colNumber is deprecated to @babel/code-frame. Please use `codeFrameColumns`.");
    deprecationError.name = "DeprecationWarning";

    if (process.emitWarning) {
      process.emitWarning(deprecationError);
    } else {
      console.warn(deprecationError);
    }
  }

  colNumber = Math.max(colNumber, 0);
  var location = {
    start: {
      column: colNumber,
      line: lineNumber
    }
  };
  return codeFrameColumns(rawLines, location, opts);
}