1 files changed, 169 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/vfile/core.js b/tools/node_modules/eslint/node_modules/vfile/core.js
new file mode 100644
index 0000000000..2d88a33399
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/vfile/core.js
@@ -0,0 +1,169 @@
+'use strict';
+
+var path = require('path');
+var replace = require('replace-ext');
+var buffer = require('is-buffer');
+
+module.exports = VFile;
+
+var own = {}.hasOwnProperty;
+var proto = VFile.prototype;
+
+proto.toString = toString;
+
+/* Order of setting (least specific to most), we need this because
+ * otherwise `{stem: 'a', path: '~/b.js'}` would throw, as a path
+ * is needed before a stem can be set. */
+var order = [
+  'history',
+  'path',
+  'basename',
+  'stem',
+  'extname',
+  'dirname'
+];
+
+/* Construct a new file. */
+function VFile(options) {
+  var prop;
+  var index;
+  var length;
+
+  if (!options) {
+    options = {};
+  } else if (typeof options === 'string' || buffer(options)) {
+    options = {contents: options};
+  } else if ('message' in options && 'messages' in options) {
+    return options;
+  }
+
+  if (!(this instanceof VFile)) {
+    return new VFile(options);
+  }
+
+  this.data = {};
+  this.messages = [];
+  this.history = [];
+  this.cwd = process.cwd();
+
+  /* Set path related properties in the correct order. */
+  index = -1;
+  length = order.length;
+
+  while (++index < length) {
+    prop = order[index];
+
+    if (own.call(options, prop)) {
+      this[prop] = options[prop];
+    }
+  }
+
+  /* Set non-path related properties. */
+  for (prop in options) {
+    if (order.indexOf(prop) === -1) {
+      this[prop] = options[prop];
+    }
+  }
+}
+
+/* Access full path (`~/index.min.js`). */
+Object.defineProperty(proto, 'path', {
+  get: function () {
+    return this.history[this.history.length - 1];
+  },
+  set: function (path) {
+    assertNonEmpty(path, 'path');
+
+    if (path !== this.path) {
+      this.history.push(path);
+    }
+  }
+});
+
+/* Access parent path (`~`). */
+Object.defineProperty(proto, 'dirname', {
+  get: function () {
+    return typeof this.path === 'string' ? path.dirname(this.path) : undefined;
+  },
+  set: function (dirname) {
+    assertPath(this.path, 'dirname');
+    this.path = path.join(dirname || '', this.basename);
+  }
+});
+
+/* Access basename (`index.min.js`). */
+Object.defineProperty(proto, 'basename', {
+  get: function () {
+    return typeof this.path === 'string' ? path.basename(this.path) : undefined;
+  },
+  set: function (basename) {
+    assertNonEmpty(basename, 'basename');
+    assertPart(basename, 'basename');
+    this.path = path.join(this.dirname || '', basename);
+  }
+});
+
+/* Access extname (`.js`). */
+Object.defineProperty(proto, 'extname', {
+  get: function () {
+    return typeof this.path === 'string' ? path.extname(this.path) : undefined;
+  },
+  set: function (extname) {
+    var ext = extname || '';
+
+    assertPart(ext, 'extname');
+    assertPath(this.path, 'extname');
+
+    if (ext) {
+      if (ext.charAt(0) !== '.') {
+        throw new Error('`extname` must start with `.`');
+      }
+
+      if (ext.indexOf('.', 1) !== -1) {
+        throw new Error('`extname` cannot contain multiple dots');
+      }
+    }
+
+    this.path = replace(this.path, ext);
+  }
+});
+
+/* Access stem (`index.min`). */
+Object.defineProperty(proto, 'stem', {
+  get: function () {
+    return typeof this.path === 'string' ? path.basename(this.path, this.extname) : undefined;
+  },
+  set: function (stem) {
+    assertNonEmpty(stem, 'stem');
+    assertPart(stem, 'stem');
+    this.path = path.join(this.dirname || '', stem + (this.extname || ''));
+  }
+});
+
+/* Get the value of the file. */
+function toString(encoding) {
+  var value = this.contents || '';
+  return buffer(value) ? value.toString(encoding) : String(value);
+}
+
+/* Assert that `part` is not a path (i.e., does
+ * not contain `path.sep`). */
+function assertPart(part, name) {
+  if (part.indexOf(path.sep) !== -1) {
+    throw new Error('`' + name + '` cannot be a path: did not expect `' + path.sep + '`');
+  }
+}
+
+/* Assert that `part` is not empty. */
+function assertNonEmpty(part, name) {
+  if (!part) {
+    throw new Error('`' + name + '` cannot be empty');
+  }
+}
+
+/* Assert `path` exists. */
+function assertPath(path, name) {
+  if (!path) {
+    throw new Error('Setting `' + name + '` requires `path` to be set too');
+  }
+}