microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-06-11 20:37:46 -05:00
Code Issues Packages Projects Releases 212 Wiki Activity

Simplify or optimize regexes with polynomial time worst cases (#44197)

Browse Source 
* Simplify or optimize regexes with polynomial time worst cases

* PR feedback & cleanup

Co-authored-by: David Michon <dmichon-msft@users.noreply.github.com>

* Use builtin scanner function for checking whitespace in fallback method (its faster)

Co-authored-by: David Michon <dmichon-msft@users.noreply.github.com>
This commit is contained in:
Wesley Wigham
2021-05-24 15:28:52 -07:00
committed by GitHub
parent 2203228b62
commit fcabb5c0cc
11 changed files with 158 additions and 85 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/compiler/sourcemap.ts
View File

@@ -322,7 +322,7 @@ namespace ts {
}
// Sometimes tools can see the following line as a source mapping url comment, so we mangle it a bit (the [M])
const sourceMapCommentRegExp = /^\/\/[@#] source[M]appingURL=(.+)\s*$/;
const sourceMapCommentRegExp = /^\/\/[@#] source[M]appingURL=(.+)$/;
const whitespaceOrMapCommentRegExp = /^\s*(\/\/[@#] .*)?$/;
export interface LineInfo {
@@ -345,7 +345,7 @@ namespace ts {
const line = lineInfo.getLineText(index);
const comment = sourceMapCommentRegExp.exec(line);
if (comment) {
return comment[1];
return trimStringEnd(comment[1]);
}
// If we see a non-whitespace/map comment-like line, break, to avoid scanning up the entire file
else if (!line.match(whitespaceOrMapCommentRegExp)) {