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Perf: improve processLine performance

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SukkaW
2025-01-20 22:52:29 +08:00
parent 6cb410bc98
commit 1ce322a71c
3 changed files with 30 additions and 22 deletions
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22
Build/lib/process-line.ts
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@@ -1,33 +1,29 @@
import { TransformStream } from 'node:stream/web';
export function processLine(line: string): string | null {
if (!line) {
return null;
}
const trimmed: string = line.trim();
if (trimmed.length === 0) {
return null;
}
const line_0: string = trimmed[0];
const line_0 = trimmed.charCodeAt(0);
if (
line_0 === ' '
|| line_0 === '\r'
|| line_0 === '\n'
|| line_0 === '!'
|| (line_0 === '/' && trimmed[1] === '/')
// line_0 === 32 /** [space] */
// || line_0 === 13 /** \r */
// || line_0 === 10 /** \n */
line_0 === 33 /** ! */
|| (line_0 === 47 /** / */ && trimmed.charCodeAt(1) === 47 /** / */)
) {
return null;
}
if (line_0 === '#') {
if (trimmed[1] !== '#') {
if (line_0 === 35 /** # */) {
if (trimmed.charCodeAt(1) !== 35 /** # */) {
// # Comment
return null;
}
if (trimmed[2] === '#' && trimmed[3] === '#') {
if (trimmed.charCodeAt(2) === 35 /** # */ && trimmed.charCodeAt(3) === 35) {
// ################## EOF ##################
return null;
}