1 files changed, 108 insertions, 0 deletions
diff --git a/node_modules/jest-util/build/globsToMatcher.js b/node_modules/jest-util/build/globsToMatcher.js
new file mode 100644
index 0000000..b359fd5
--- /dev/null
+++ b/node_modules/jest-util/build/globsToMatcher.js
@@ -0,0 +1,108 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = globsToMatcher;
+
+function _picomatch() {
+  const data = _interopRequireDefault(require('picomatch'));
+
+  _picomatch = function () {
+    return data;
+  };
+
+  return data;
+}
+
+var _replacePathSepForGlob = _interopRequireDefault(
+  require('./replacePathSepForGlob')
+);
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+const globsToMatchersMap = new Map();
+const picomatchOptions = {
+  dot: true
+};
+/**
+ * Converts a list of globs into a function that matches a path against the
+ * globs.
+ *
+ * Every time picomatch is called, it will parse the glob strings and turn
+ * them into regexp instances. Instead of calling picomatch repeatedly with
+ * the same globs, we can use this function which will build the picomatch
+ * matchers ahead of time and then have an optimized path for determining
+ * whether an individual path matches.
+ *
+ * This function is intended to match the behavior of `micromatch()`.
+ *
+ * @example
+ * const isMatch = globsToMatcher(['*.js', '!*.test.js']);
+ * isMatch('pizza.js'); // true
+ * isMatch('pizza.test.js'); // false
+ */
+
+function globsToMatcher(globs) {
+  if (globs.length === 0) {
+    // Since there were no globs given, we can simply have a fast path here and
+    // return with a very simple function.
+    return () => false;
+  }
+
+  const matchers = globs.map(glob => {
+    if (!globsToMatchersMap.has(glob)) {
+      const isMatch = (0, _picomatch().default)(glob, picomatchOptions, true);
+      const matcher = {
+        isMatch,
+        // Matchers that are negated have different behavior than matchers that
+        // are not negated, so we need to store this information ahead of time.
+        negated: isMatch.state.negated || !!isMatch.state.negatedExtglob
+      };
+      globsToMatchersMap.set(glob, matcher);
+    }
+
+    return globsToMatchersMap.get(glob);
+  });
+  return path => {
+    const replacedPath = (0, _replacePathSepForGlob.default)(path);
+    let kept = undefined;
+    let negatives = 0;
+
+    for (let i = 0; i < matchers.length; i++) {
+      const {isMatch, negated} = matchers[i];
+
+      if (negated) {
+        negatives++;
+      }
+
+      const matched = isMatch(replacedPath);
+
+      if (!matched && negated) {
+        // The path was not matched, and the matcher is a negated matcher, so we
+        // want to omit the path. This means that the negative matcher is
+        // filtering the path out.
+        kept = false;
+      } else if (matched && !negated) {
+        // The path was matched, and the matcher is not a negated matcher, so we
+        // want to keep the path.
+        kept = true;
+      }
+    } // If all of the globs were negative globs, then we want to include the path
+    // as long as it was not explicitly not kept. Otherwise only include
+    // the path if it was kept. This allows sets of globs that are all negated
+    // to allow some paths to be matched, while sets of globs that are mixed
+    // negated and non-negated to cause the negated matchers to only omit paths
+    // and not keep them.
+
+    return negatives === matchers.length ? kept !== false : !!kept;
+  };
+}