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ladybird/Libraries/LibJS
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Andreas Kling d9dd412440 LibJS: Use foldhash in parser and scope-collector hash maps 
The std default RandomState (SipHash) was using ~9 percentage points
of CPU on hash_one and write across the parse hot path, with the
string interner adding another ~3 pp on top. The cost was spread
across the interner, the scope collector's IndexMap<Utf16String, _>,
and several parser-side HashSet<Utf16String> declarations.

Use foldhash::quality::RandomState for the parser, scope collector,
and string interner via a new fast_hash module. Quality keeps
HashDoS resistance (keys are lexer tokens, attacker-controlled in a
browser context) while shedding SipHash's per-byte cost, and on this
workload it benchmarks slightly faster than foldhash::fast.
2026-05-05 13:53:51 +02:00
..
AsmIntGen LibJS: Add asmint tag assertions 2026-05-03 13:10:48 +02:00
Bytecode LibJS: Assert asmint call frame ranges 2026-05-03 13:10:48 +02:00
BytecodeDef Rust: Add a config file for rustfmt 2026-04-18 08:05:47 -04:00
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: Store pending completion on generator instead of CompletionCell 2026-05-03 12:24:04 +02:00
Rust LibJS: Use foldhash in parser and scope-collector hash maps 2026-05-05 13:53:51 +02:00
CMakeLists.txt LibJS+LibWeb: Track Rust archive as input in static-lib merge 2026-05-05 13:53:51 +02:00
Console.cpp LibJS+LibWeb: Make DOMException hold an [[ErrorData]] slot 2026-04-08 20:33:53 +02:00
Console.h LibJS+LibWeb: Make DOMException hold an [[ErrorData]] slot 2026-04-08 20:33:53 +02:00
CyclicModule.cpp LibWeb: Support WASM modules 2026-04-03 21:21:09 +02:00
CyclicModule.h LibWeb: Support WASM modules 2026-04-03 21:21:09 +02:00
Forward.h LibJS: Store AlreadyResolved bit on the resolve function itself 2026-05-02 20:24:47 +02:00
LocalVariable.h LibJS: Port the Identifier AST (and related) nodes to UTF-16 2025-08-13 09:56:13 -04:00
Module.cpp LibWeb: Support WASM modules 2026-04-03 21:21:09 +02:00
Module.h LibWeb: Support WASM modules 2026-04-03 21:21:09 +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: Store full realized SourceRange with each AST node 2025-12-29 13:36:01 +01:00
Print.cpp Everywhere: Remove ShadowRealm support 2026-04-05 13:57:58 +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: Tighten the bytecode validator's argument operand bound 2026-05-03 08:43:19 +02:00
RustIntegration.h LibWeb+LibJS: Compile fetched top-level JS off-thread 2026-04-26 21:51:52 +02:00
Script.cpp LibJS: Build functions_to_initialize in source order 2026-04-27 08:04:11 +02:00
Script.h LibWeb+LibJS: Compile fetched top-level JS off-thread 2026-04-26 21:51:52 +02:00
SourceCode.cpp LibJS: Cache ASCII-to-UTF-16 source conversion for Rust compilation 2026-02-25 00:00:52 +01:00
SourceCode.h LibJS: Cache ASCII-to-UTF-16 source conversion for Rust compilation 2026-02-25 00:00:52 +01:00
SourceRange.h LibJS: Preserve source positions in bytecode source maps 2026-04-22 22:34:54 +02:00
SourceTextModule.cpp LibWeb+LibJS: Compile fetched top-level JS off-thread 2026-04-26 21:51:52 +02:00
SourceTextModule.h LibWeb+LibJS: Compile fetched top-level JS off-thread 2026-04-26 21:51:52 +02:00
SyntaxHighlighter.cpp Meta: Remove ENABLE_RUST build configuration option 2026-04-02 22:59:42 +02:00
SyntaxHighlighter.h LibJS: Enable EXPLICIT_SYMBOL_EXPORT and annotate minimum symbol set 2025-07-22 11:51:29 -04:00
SyntheticModule.cpp LibWeb: Support WASM modules 2026-04-03 21:21:09 +02:00
SyntheticModule.h LibWeb: Support WASM modules 2026-04-03 21:21:09 +02:00
Token.h LibJS: Remove C++ lexer, use Rust tokenizer for syntax highlighting 2026-03-19 21:55:10 -05:00