tools: update eslint

PR-URL: https://github.com/nodejs/node/pull/27670
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/lib/source-code/token-store/forward-token-cursor.js b/tools/node_modules/eslint/lib/source-code/token-store/forward-token-cursor.js
new file mode 100644
index 0000000000..523ed398fa
--- /dev/null
+++ b/tools/node_modules/eslint/lib/source-code/token-store/forward-token-cursor.js
@@ -0,0 +1,63 @@
+/**
+ * @fileoverview Define the cursor which iterates tokens only.
+ * @author Toru Nagashima
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const Cursor = require("./cursor");
+const utils = require("./utils");
+
+//------------------------------------------------------------------------------
+// Exports
+//------------------------------------------------------------------------------
+
+/**
+ * The cursor which iterates tokens only.
+ */
+module.exports = class ForwardTokenCursor extends Cursor {
+
+    /**
+     * Initializes this cursor.
+     * @param {Token[]} tokens - The array of tokens.
+     * @param {Comment[]} comments - The array of comments.
+     * @param {Object} indexMap - The map from locations to indices in `tokens`.
+     * @param {number} startLoc - The start location of the iteration range.
+     * @param {number} endLoc - The end location of the iteration range.
+     */
+    constructor(tokens, comments, indexMap, startLoc, endLoc) {
+        super();
+        this.tokens = tokens;
+        this.index = utils.getFirstIndex(tokens, indexMap, startLoc);
+        this.indexEnd = utils.getLastIndex(tokens, indexMap, endLoc);
+    }
+
+    /** @inheritdoc */
+    moveNext() {
+        if (this.index <= this.indexEnd) {
+            this.current = this.tokens[this.index];
+            this.index += 1;
+            return true;
+        }
+        return false;
+    }
+
+    /*
+     *
+     * Shorthand for performance.
+     *
+     */
+
+    /** @inheritdoc */
+    getOneToken() {
+        return (this.index <= this.indexEnd) ? this.tokens[this.index] : null;
+    }
+
+    /** @inheritdoc */
+    getAllTokens() {
+        return this.tokens.slice(this.index, this.indexEnd + 1);
+    }
+};