update socials section

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

@@ -0,0 +1,90 @@
+/**
+ * @fileoverview Define 2 token factories; forward and backward.
+ * @author Toru Nagashima
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const BackwardTokenCommentCursor = require("./backward-token-comment-cursor");
+const BackwardTokenCursor = require("./backward-token-cursor");
+const FilterCursor = require("./filter-cursor");
+const ForwardTokenCommentCursor = require("./forward-token-comment-cursor");
+const ForwardTokenCursor = require("./forward-token-cursor");
+const LimitCursor = require("./limit-cursor");
+const SkipCursor = require("./skip-cursor");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * The cursor factory.
+ * @private
+ */
+class CursorFactory {
+
+    /**
+     * Initializes this cursor.
+     * @param {Function} TokenCursor The class of the cursor which iterates tokens only.
+     * @param {Function} TokenCommentCursor The class of the cursor which iterates the mix of tokens and comments.
+     */
+    constructor(TokenCursor, TokenCommentCursor) {
+        this.TokenCursor = TokenCursor;
+        this.TokenCommentCursor = TokenCommentCursor;
+    }
+
+    /**
+     * Creates a base cursor instance that can be decorated by createCursor.
+     * @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.
+     * @param {boolean} includeComments The flag to iterate comments as well.
+     * @returns {Cursor} The created base cursor.
+     */
+    createBaseCursor(tokens, comments, indexMap, startLoc, endLoc, includeComments) {
+        const Cursor = includeComments ? this.TokenCommentCursor : this.TokenCursor;
+
+        return new Cursor(tokens, comments, indexMap, startLoc, endLoc);
+    }
+
+    /**
+     * Creates a cursor that iterates tokens with normalized options.
+     * @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.
+     * @param {boolean} includeComments The flag to iterate comments as well.
+     * @param {Function|null} filter The predicate function to choose tokens.
+     * @param {number} skip The count of tokens the cursor skips.
+     * @param {number} count The maximum count of tokens the cursor iterates. Zero is no iteration for backward compatibility.
+     * @returns {Cursor} The created cursor.
+     */
+    createCursor(tokens, comments, indexMap, startLoc, endLoc, includeComments, filter, skip, count) {
+        let cursor = this.createBaseCursor(tokens, comments, indexMap, startLoc, endLoc, includeComments);
+
+        if (filter) {
+            cursor = new FilterCursor(cursor, filter);
+        }
+        if (skip >= 1) {
+            cursor = new SkipCursor(cursor, skip);
+        }
+        if (count >= 0) {
+            cursor = new LimitCursor(cursor, count);
+        }
+
+        return cursor;
+    }
+}
+
+//------------------------------------------------------------------------------
+// Exports
+//------------------------------------------------------------------------------
+
+exports.forward = new CursorFactory(ForwardTokenCursor, ForwardTokenCommentCursor);
+exports.backward = new CursorFactory(BackwardTokenCursor, BackwardTokenCommentCursor);