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LibJS+LibWeb+WebContent: Port JS::PropertyKey to UTF-16

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This has quite a lot of fall out. But the majority of it is just type or
UDL substitution, where the changes just fall through to other function
calls.

By changing property key storage to UTF-16, the main affected areas are:
* NativeFunction names must now be UTF-16
* Bytecode identifiers must now be UTF-16
* Module/binding names must now be UTF-16
This commit is contained in:
Timothy Flynn 2025-08-02 19:27:29 -04:00 • committed by Tim Flynn
commit 0efa98a57a
Notes: github-actions[bot] 2025-08-05 11:08:30 +00:00
131 changed files with 766 additions and 726 deletions
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6
Libraries/LibJS/Runtime/VM.cpp
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@ -46,7 +46,7 @@ NonnullRefPtr<VM> VM::create()
WellKnownSymbols well_known_symbols {
#define __JS_ENUMERATE(SymbolName, snake_name) \
Symbol::create(*vm, "Symbol." #SymbolName##_string, false),
Symbol::create(*vm, "Symbol." #SymbolName##_utf16, false),
JS_ENUMERATE_WELL_KNOWN_SYMBOLS
#undef __JS_ENUMERATE
};
@ -284,7 +284,7 @@ void VM::gather_roots(HashMap<GC::Cell*, GC::HeapRoot>& roots)
}
// 9.1.2.1 GetIdentifierReference ( env, name, strict ), https://tc39.es/ecma262/#sec-getidentifierreference
ThrowCompletionOr<Reference> VM::get_identifier_reference(Environment* environment, FlyString name, bool strict, size_t hops)
ThrowCompletionOr<Reference> VM::get_identifier_reference(Environment* environment, Utf16FlyString name, bool strict, size_t hops)
{
// 1. If env is the value null, then
if (!environment) {
@ -318,7 +318,7 @@ ThrowCompletionOr<Reference> VM::get_identifier_reference(Environment* environme
}
// 9.4.2 ResolveBinding ( name [ , env ] ), https://tc39.es/ecma262/#sec-resolvebinding
ThrowCompletionOr<Reference> VM::resolve_binding(FlyString const& name, Environment* environment)
ThrowCompletionOr<Reference> VM::resolve_binding(Utf16FlyString const& name, Environment* environment)
{
// 1. If env is not present or if env is undefined, then
if (!environment) {