update socials section

node_modules/eslint/lib/source-code/token-store/utils.js

@@ -0,0 +1,107 @@
+/**
+ * @fileoverview Define utility functions for token store.
+ * @author Toru Nagashima
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Exports
+//------------------------------------------------------------------------------
+
+/**
+ * Finds the index of the first token which is after the given location.
+ * If it was not found, this returns `tokens.length`.
+ * @param {(Token|Comment)[]} tokens It searches the token in this list.
+ * @param {number} location The location to search.
+ * @returns {number} The found index or `tokens.length`.
+ */
+exports.search = function search(tokens, location) {
+    for (let minIndex = 0, maxIndex = tokens.length - 1; minIndex <= maxIndex;) {
+
+        /*
+         * Calculate the index in the middle between minIndex and maxIndex.
+         * `| 0` is used to round a fractional value down to the nearest integer: this is similar to
+         * using `Math.trunc()` or `Math.floor()`, but performance tests have shown this method to
+         * be faster.
+         */
+        const index = (minIndex + maxIndex) / 2 | 0;
+        const token = tokens[index];
+        const tokenStartLocation = token.range[0];
+
+        if (location <= tokenStartLocation) {
+            if (index === minIndex) {
+                return index;
+            }
+            maxIndex = index;
+        } else {
+            minIndex = index + 1;
+        }
+    }
+    return tokens.length;
+};
+
+/**
+ * Gets the index of the `startLoc` in `tokens`.
+ * `startLoc` can be the value of `node.range[1]`, so this checks about `startLoc - 1` as well.
+ * @param {(Token|Comment)[]} tokens The tokens to find an index.
+ * @param {Object} indexMap The map from locations to indices.
+ * @param {number} startLoc The location to get an index.
+ * @returns {number} The index.
+ */
+exports.getFirstIndex = function getFirstIndex(tokens, indexMap, startLoc) {
+    if (startLoc in indexMap) {
+        return indexMap[startLoc];
+    }
+    if ((startLoc - 1) in indexMap) {
+        const index = indexMap[startLoc - 1];
+        const token = tokens[index];
+
+        // If the mapped index is out of bounds, the returned cursor index will point after the end of the tokens array.
+        if (!token) {
+            return tokens.length;
+        }
+
+        /*
+         * For the map of "comment's location -> token's index", it points the next token of a comment.
+         * In that case, +1 is unnecessary.
+         */
+        if (token.range[0] >= startLoc) {
+            return index;
+        }
+        return index + 1;
+    }
+    return 0;
+};
+
+/**
+ * Gets the index of the `endLoc` in `tokens`.
+ * The information of end locations are recorded at `endLoc - 1` in `indexMap`, so this checks about `endLoc - 1` as well.
+ * @param {(Token|Comment)[]} tokens The tokens to find an index.
+ * @param {Object} indexMap The map from locations to indices.
+ * @param {number} endLoc The location to get an index.
+ * @returns {number} The index.
+ */
+exports.getLastIndex = function getLastIndex(tokens, indexMap, endLoc) {
+    if (endLoc in indexMap) {
+        return indexMap[endLoc] - 1;
+    }
+    if ((endLoc - 1) in indexMap) {
+        const index = indexMap[endLoc - 1];
+        const token = tokens[index];
+
+        // If the mapped index is out of bounds, the returned cursor index will point before the end of the tokens array.
+        if (!token) {
+            return tokens.length - 1;
+        }
+
+        /*
+         * For the map of "comment's location -> token's index", it points the next token of a comment.
+         * In that case, -1 is necessary.
+         */
+        if (token.range[1] > endLoc) {
+            return index - 1;
+        }
+        return index;
+    }
+    return tokens.length - 1;
+};