mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-04-22 12:35:14 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

LibJS: Add fast path for strings in Value::to_property_key()

Browse source 
If the Value is already a primitive string, we can skip all the
conversion ceremony and return a PropertyKey right away.
This commit is contained in:
Andreas Kling 2025-03-19 10:38:22 -05:00
parent b11f3853a8
commit 896f8be09f
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
Libraries/LibJS/Runtime/Value.cpp
View file

@ -898,6 +898,10 @@ ThrowCompletionOr<PropertyKey> Value::to_property_key(VM& vm) const
if (is_int32() && as_i32() >= 0)
return PropertyKey { as_i32() };
// OPTIMIZATION: If this is already a string, we can skip all the ceremony.
if (is_string())
return PropertyKey { as_string().utf8_string() };
// 1. Let key be ? ToPrimitive(argument, string).
auto key = TRY(to_primitive(vm, PreferredType::String));