eliott/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird synced 2026-04-25 17:25:08 +02:00
Code Issues Packages Projects Releases Wiki Activity

LibRegex: Avoid generating ForkJumps when jumping to the next alt block

Browse Source 
Fixes #2398.
This commit is contained in:
Ali Mohammad Pur
2024-11-17 16:01:15 +01:00
committed by Ali Mohammad Pur
parent b264d18ad1
commit 5a4d657a4e
Notes: github-actions[bot] 2024-11-17 19:13:35 +00:00 
Author: https://github.com/alimpfard
Commit: https://github.com/LadybirdBrowser/ladybird/commit/5a4d657a4e8
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2401
2 changed files with 11 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Libraries/LibRegex/RegexOptimizer.cpp
View File

@@ -1197,6 +1197,8 @@ void Optimizer::append_alternation(ByteCode& target, Span<ByteCode> alternatives
for (auto& patch : patch_locations) {
if (!patch.done && node_is(node, patch.source_ip)) {
auto value = static_cast<ByteCodeValueType>(target.size() - patch.target_ip - 1);
if (value == 0)
target[patch.target_ip - 1] = static_cast<ByteCodeValueType>(OpCodeId::Jump);
target[patch.target_ip] = value;
patch.done = true;
}