Andreas/markdownlint
1
0
Fork 0
mirror of https://github.com/DavidAnson/markdownlint.git synced 2025-12-16 22:10:13 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Update micromark parse to store flattened tokens on the returned tree via Symbol, use flattened tokens in filterByTypes for a ~14% elapsed time reduction.

Browse source
This commit is contained in:
David Anson 2023-08-28 22:00:43 -07:00
parent 87fda39df8
commit 73e7271188
2 changed files with 24 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

15
helpers/micromark.cjs
View file

@ -10,6 +10,8 @@ const {
} = require("markdownlint-micromark");
const { newLineRe } = require("./shared.js");
const flatTokensSymbol = Symbol("flat-tokens");
/**
* Markdown token.
*
@ -82,6 +84,7 @@ function micromarkParseWithOffset(
// Create Token objects
const document = [];
const flatTokens = [];
let current = {
"children": document
};
@ -131,6 +134,7 @@ function micromarkParseWithOffset(
);
}
previous.children.push(current);
flatTokens.push(current);
} else if (kind === "exit") {
Object.freeze(current.children);
Object.freeze(current);
@ -140,6 +144,7 @@ function micromarkParseWithOffset(
}
// Return document
Object.defineProperty(document, flatTokensSymbol, { "value": flatTokens });
Object.freeze(document);
return document;
}
@ -198,10 +203,12 @@ function filterByPredicate(tokens, allowed, transformChildren) {
* @returns {Token[]} Filtered tokens.
*/
function filterByTypes(tokens, allowed) {
return filterByPredicate(
tokens,
(token) => allowed.includes(token.type)
);
const predicate = (token) => allowed.includes(token.type);
const flatTokens = tokens[flatTokensSymbol];
if (flatTokens) {
return flatTokens.filter(predicate);
}
return filterByPredicate(tokens, predicate);
}
/**