Commit graph

6 commits

Author SHA1 Message Date
Andreas Kling
202cbe7df6 LibJS: Constant-fold unary expressions
!0 and !1 are very common patterns in minified JavaScript, and we should
figure out that they're constants. :^)
2025-03-25 19:14:12 +00:00
Andreas Kling
46a5710238 LibJS: Use FlyString in PropertyKey instead of DeprecatedFlyString
This required dealing with *substantial* fallout.
2025-03-24 22:27:17 +00:00
Andreas Kling
b971e1ece0 LibJS: Mark locals as outside TDZ immediately after initializing
This avoids emitting TDZ checks for multiple bindings declared and
referenced within one variable declaration, i.e:

    var foo = 0, bar = foo;

In the above case, we'd emit an unnecessary TDZ check for the second
reference to `foo`.
2025-03-21 00:58:34 +01:00
Timothy Flynn
85b424464a AK+Everywhere: Rename verify_cast to as
Follow-up to fc20e61e72.
2025-01-21 11:34:06 -05:00
Luke Wilde
a588756105 LibJS: Use correct this value for tagged template literals with members
Required by creepjs, which does Date().split` `[3] to get the current
year.
2025-01-17 17:15:12 +01:00
Timothy Flynn
93712b24bf Everywhere: Hoist the Libraries folder to the top-level 2024-11-10 12:50:45 +01:00
Renamed from Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp (Browse further)