Cache all top-level calls to filterByTypes (~7% runtime reduction).

This commit is contained in:
David Anson 2024-08-24 22:05:16 -07:00
parent 85e704f32a
commit dfcb4529f3
47 changed files with 427 additions and 481 deletions

View file

@ -3,7 +3,8 @@
"use strict";
const { addErrorDetailIf } = require("../helpers");
const { filterByTypes, getHeadingLevel } = require("../helpers/micromark.cjs");
const { getHeadingLevel } = require("../helpers/micromark.cjs");
const { filterByTypesCached } = require("./cache");
// eslint-disable-next-line jsdoc/valid-types
/** @type import("./markdownlint").Rule */
@ -14,11 +15,7 @@ module.exports = {
"parser": "micromark",
"function": function MD001(params, onError) {
let prevLevel = Number.MAX_SAFE_INTEGER;
const headings = filterByTypes(
params.parsers.micromark.tokens,
[ "atxHeading", "setextHeading" ]
);
for (const heading of headings) {
for (const heading of filterByTypesCached([ "atxHeading", "setextHeading" ])) {
const level = getHeadingLevel(heading);
if (level > prevLevel) {
addErrorDetailIf(