react app

react-app/node_modules/babel-code-frame/lib/index.js

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+/* eslint indent: 0 */
+/* eslint max-len: 0 */
+
+//import lineNumbers from "line-numbers";
+"use strict";
+
+var _interopRequireDefault = require("babel-runtime/helpers/interop-require-default")["default"];
+
+exports.__esModule = true;
+
+var _repeating = require("repeating");
+
+var _repeating2 = _interopRequireDefault(_repeating);
+
+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 lineNumbers(lines) {
+  return lines;
+}
+
+/**
+ * Chalk styles for token types.
+ */
+
+var defs = {
+  string: _chalk2["default"].red,
+  punctuator: _chalk2["default"].bold,
+  curly: _chalk2["default"].green,
+  parens: _chalk2["default"].blue.bold,
+  square: _chalk2["default"].yellow,
+  keyword: _chalk2["default"].cyan,
+  number: _chalk2["default"].magenta,
+  regex: _chalk2["default"].magenta,
+  comment: _chalk2["default"].grey,
+  invalid: _chalk2["default"].inverse
+};
+
+/**
+ * RegExp to test for newlines in terminal.
+ */
+
+var NEWLINE = /\r\n|[\n\r\u2028\u2029]/;
+
+/**
+ * Get the type of token, specifying punctuator type.
+ */
+
+function getTokenType(match) {
+  var token = _jsTokens2["default"].matchToToken(match);
+  if (token.type === "name" && _esutils2["default"].keyword.isReservedWordES6(token.value)) {
+    return "keyword";
+  }
+
+  if (token.type === "punctuator") {
+    switch (token.value) {
+      case "{":
+      case "}":
+        return "curly";
+      case "(":
+      case ")":
+        return "parens";
+      case "[":
+      case "]":
+        return "square";
+    }
+  }
+
+  return token.type;
+}
+
+/**
+ * Highlight `text`.
+ */
+
+function highlight(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];
+    }
+  });
+}
+
+/**
+ * Create a code frame, adding line numbers, code highlighting, and pointing to a given position.
+ */
+
+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;
+  if (highlighted) rawLines = highlight(rawLines);
+
+  var lines = rawLines.split(NEWLINE);
+  var start = Math.max(lineNumber - 3, 0);
+  var end = Math.min(lines.length, lineNumber + 3);
+
+  if (!lineNumber && !colNumber) {
+    start = 0;
+    end = lines.length;
+  }
+
+  var frame = lineNumbers(lines.slice(start, end), {
+    start: start + 1,
+    before: "  ",
+    after: " | ",
+    transform: function transform(params) {
+      if (params.number !== lineNumber) {
+        return;
+      }
+
+      if (colNumber) {
+        params.line += "\n" + params.before + _repeating2["default"](" ", params.width) + params.after + _repeating2["default"](" ", colNumber - 1) + "^";
+      }
+
+      params.before = params.before.replace(/^./, ">");
+    }
+  }).join("\n");
+
+  if (highlighted) {
+    return _chalk2["default"].reset(frame);
+  } else {
+    return frame;
+  }
+};
+
+module.exports = exports["default"];