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ladybird/Libraries/LibJS
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Andreas Kling be5320b67c LibJS: Evaluate ToNumber for out-of-bounds typed array writes 
The interpreter's fast path for PutByValue on a typed array treated an
out-of-bounds index as a silent no-op and returned without touching the
value. That is observably wrong: TypedArraySetElement evaluates
ToNumber(value) before checking the index, so a value with a valueOf
side effect must still have that side effect run even when the store is
ultimately discarded.

Fall back to the slow path on an out-of-bounds or otherwise invalid
index instead of reporting success. The slow path runs the full
TypedArraySetElement algorithm, which performs the coercion and then
discards the write. Direct assignment now matches Reflect.set, which
already went through the slow path.

Fixes the staging/sm typed array out-of-bounds ToNumber test262 case
and adds a test-js regression covering direct assignment, Reflect.set,
and Reflect.defineProperty.
2026-06-17 21:24:33 +02:00
..
AsmIntGen LibJS: Sync AsmInt program counter before slow paths 2026-06-14 20:27:59 +02:00
Bytecode LibJS: Evaluate ToNumber for out-of-bounds typed array writes 2026-06-17 21:24:33 +02:00
BytecodeDef LibJS: Infer computed property function names 2026-05-22 01:56:57 +02:00
Contrib/Test262 LibJS: Remove gc from the global object 2026-04-24 18:36:23 +02:00
Heap LibJS: Eliminate GeneratorResult GC cell allocation on yield/await 2026-03-20 15:57:23 -05:00
Runtime LibJS: Support source text access in JSON.parse revivers 2026-06-17 21:24:33 +02:00
Rust LibJS: Move bytecode block counting to Rust 2026-06-15 02:41:57 +02:00
CMakeLists.txt LibJS: Remove unused C++ bytecode block classes 2026-06-14 20:27:59 +02:00
Console.cpp LibJS: Use conservative GC containers for unrooted property-key sets 2026-05-28 21:16:23 +02:00
Console.h LibJS+LibWeb: Make DOMException hold an [[ErrorData]] slot 2026-04-08 20:33:53 +02:00
CyclicModule.cpp LibJS: Allow cached module evaluation errors 2026-05-23 11:36:45 +02:00
CyclicModule.h LibJS: Track async module evaluation order 2026-05-22 01:56:57 +02:00
DecodedBytecodeCache.h LibWeb+LibJS: Cache decoded JS bytecode sidecars 2026-06-06 09:15:09 +02:00
ExecutableBacking.h LibWeb+LibJS: Cache decoded JS bytecode sidecars 2026-06-06 09:15:09 +02:00
Forward.h LibJS: Remove unused C++ bytecode block classes 2026-06-14 20:27:59 +02:00
Module.cpp LibGC: Default-construct RootHashTable from the global heap 2026-05-20 20:37:55 +02:00
Module.h LibJS: Adopt RootVector for module linking/evaluation stacks 2026-05-19 19:24:08 +02:00
ModuleEntry.h LibJS: Remove C++ AST 2026-03-19 21:55:10 -05:00
ModuleLoading.h LibGC+Everywhere: Factor out a LibGC from LibJS 2024-11-15 14:49:20 +01:00
ParserError.cpp LibJS: Port the JS lexer and parser to UTF-16 2025-08-13 09:56:13 -04:00
ParserError.h LibJS: Port the JS lexer and parser to UTF-16 2025-08-13 09:56:13 -04:00
Position.h LibJS: Drop source ranges from bytecode source maps 2026-05-14 09:41:03 +02:00
Print.cpp LibGC: Default-construct RootHashTable from the global heap 2026-05-20 20:37:55 +02:00
Print.h LibJS: Enable EXPLICIT_SYMBOL_EXPORT and annotate minimum symbol set 2025-07-22 11:51:29 -04:00
RustIntegration.cpp LibJS: Remove unused C++ local variable wrapper 2026-06-15 02:41:57 +02:00
RustIntegration.h LibJS: Move bytecode block counting to Rust 2026-06-15 02:41:57 +02:00
Script.cpp LibWeb+LibJS: Cache decoded JS bytecode sidecars 2026-06-06 09:15:09 +02:00
Script.h LibWeb+LibJS: Cache decoded JS bytecode sidecars 2026-06-06 09:15:09 +02:00
SourceCode.cpp LibJS: Lazily map UTF-8 source offsets 2026-05-19 17:58:08 +02:00
SourceCode.h LibJS: Lazily map UTF-8 source offsets 2026-05-19 17:58:08 +02:00
SourceRange.h LibJS: Drop source ranges from bytecode source maps 2026-05-14 09:41:03 +02:00
SourceTextModule.cpp LibWeb+LibJS: Cache decoded JS bytecode sidecars 2026-06-06 09:15:09 +02:00
SourceTextModule.h LibWeb+LibJS: Cache decoded JS bytecode sidecars 2026-06-06 09:15:09 +02:00
SyntaxHighlighter.cpp LibSyntax+LibJS+LibWebView: Port the syntax highlighter to UTF-8 2026-06-06 18:42:18 +02:00
SyntaxHighlighter.h LibSyntax+LibJS+LibWeb+LibWebView: Remove unused syntax highlighter code 2026-06-06 18:42:18 +02:00
SyntheticModule.cpp LibJS+LibWeb: Adopt RootHashTable for unrooted GC-pointer storage 2026-05-19 19:24:08 +02:00
SyntheticModule.h LibJS+LibWeb: Adopt RootHashTable for unrooted GC-pointer storage 2026-05-19 19:24:08 +02:00
Token.h LibJS: Remove C++ lexer, use Rust tokenizer for syntax highlighting 2026-03-19 21:55:10 -05:00