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LibJS+Everywhere: Make PrimitiveString and Utf16String fallible

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This makes construction of Utf16String fallible in OOM conditions. The
immediate impact is that PrimitiveString must then be fallible as well,
as it may either transcode UTF-8 to UTF-16, or create a UTF-16 string
from ropes.

There are a couple of places where it is very non-trivial to propagate
the error further. A FIXME has been added to those locations.
This commit is contained in:
Timothy Flynn 2023-01-07 12:24:05 -05:00 • committed by Linus Groh
parent d793262beb
commit 115baa7e32
57 changed files with 306 additions and 295 deletions
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10
Userland/Libraries/LibJS/Runtime/Intl/DisplayNamesConstructor.cpp
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@ -76,13 +76,13 @@ ThrowCompletionOr<NonnullGCPtr<Object>> DisplayNamesConstructor::construct(Funct
opt.locale_matcher = matcher;
// 10. Let r be ResolveLocale(%DisplayNames%.[[AvailableLocales]], requestedLocales, opt, %DisplayNames%.[[RelevantExtensionKeys]]).
auto result = resolve_locale(requested_locales, opt, {});
auto result = TRY(resolve_locale(requested_locales, opt, {}));
// 11. Let style be ? GetOption(options, "style", "string", « "narrow", "short", "long" », "long").
auto style = TRY(get_option(vm, *options, vm.names.style, OptionType::String, { "narrow"sv, "short"sv, "long"sv }, "long"sv));
// 12. Set displayNames.[[Style]] to style.
display_names->set_style(style.as_string().deprecated_string());
display_names->set_style(TRY(style.as_string().deprecated_string()));
// 13. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency", "calendar", "dateTimeField" », undefined).
auto type = TRY(get_option(vm, *options, vm.names.type, OptionType::String, { "language"sv, "region"sv, "script"sv, "currency"sv, "calendar"sv, "dateTimeField"sv }, Empty {}));
@ -92,13 +92,13 @@ ThrowCompletionOr<NonnullGCPtr<Object>> DisplayNamesConstructor::construct(Funct
return vm.throw_completion<TypeError>(ErrorType::IsUndefined, "options.type"sv);
// 15. Set displayNames.[[Type]] to type.
display_names->set_type(type.as_string().deprecated_string());
display_names->set_type(TRY(type.as_string().deprecated_string()));
// 16. Let fallback be ? GetOption(options, "fallback", "string", « "code", "none" », "code").
auto fallback = TRY(get_option(vm, *options, vm.names.fallback, OptionType::String, { "code"sv, "none"sv }, "code"sv));
// 17. Set displayNames.[[Fallback]] to fallback.
display_names->set_fallback(fallback.as_string().deprecated_string());
display_names->set_fallback(TRY(fallback.as_string().deprecated_string()));
// 18. Set displayNames.[[Locale]] to r.[[locale]].
display_names->set_locale(move(result.locale));
@ -119,7 +119,7 @@ ThrowCompletionOr<NonnullGCPtr<Object>> DisplayNamesConstructor::construct(Funct
// 26. If type is "language", then
if (display_names->type() == DisplayNames::Type::Language) {
// a. Set displayNames.[[LanguageDisplay]] to languageDisplay.
display_names->set_language_display(language_display.as_string().deprecated_string());
display_names->set_language_display(TRY(language_display.as_string().deprecated_string()));
// b. Let typeFields be typeFields.[[<languageDisplay>]].
// c. Assert: typeFields is a Record (see 12.4.3).