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LibJS: Mark infallible operations that may throw only due to OOM

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Timothy Flynn 2023-01-20 14:26:48 -05:00 • committed by Linus Groh
parent 52b76060f9
commit 95d1678553
18 changed files with 48 additions and 69 deletions
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12
Userland/Libraries/LibJS/Runtime/Intl/LocaleConstructor.cpp
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@ -47,7 +47,7 @@ static ThrowCompletionOr<String> apply_options_to_tag(VM& vm, StringView tag, Ob
// 2. Assert: Type(options) is Object.
// 3. If ! IsStructurallyValidLanguageTag(tag) is false, throw a RangeError exception.
auto locale_id = TRY(is_structurally_valid_language_tag(vm, tag));
auto locale_id = MUST_OR_THROW_OOM(is_structurally_valid_language_tag(vm, tag));
if (!locale_id.has_value())
return vm.throw_completion<RangeError>(ErrorType::IntlInvalidLanguageTag, tag);
@ -67,8 +67,7 @@ static ThrowCompletionOr<String> apply_options_to_tag(VM& vm, StringView tag, Ob
auto region = TRY(get_string_option(vm, options, vm.names.region, ::Locale::is_unicode_region_subtag));
// 10. Set tag to ! CanonicalizeUnicodeLocaleId(tag).
// NOTE: We TRY this operation only to propagate OOM errors.
auto canonicalized_tag = TRY(canonicalize_unicode_locale_id(vm, *locale_id));
auto canonicalized_tag = MUST_OR_THROW_OOM(canonicalize_unicode_locale_id(vm, *locale_id));
// 11. Assert: tag matches the unicode_locale_id production.
locale_id = TRY_OR_THROW_OOM(vm, ::Locale::parse_unicode_locale_id(canonicalized_tag));
@ -103,7 +102,7 @@ static ThrowCompletionOr<String> apply_options_to_tag(VM& vm, StringView tag, Ob
// 16. Set tag to tag with the substring corresponding to the unicode_language_id production replaced by the string languageId.
// 17. Return ! CanonicalizeUnicodeLocaleId(tag).
return canonicalize_unicode_locale_id(vm, *locale_id);
return MUST_OR_THROW_OOM(canonicalize_unicode_locale_id(vm, *locale_id));
}
// 14.1.3 ApplyUnicodeExtensionToTag ( tag, options, relevantExtensionKeys ), https://tc39.es/ecma402/#sec-apply-unicode-extension-to-tag
@ -208,7 +207,7 @@ static ThrowCompletionOr<LocaleAndKeys> apply_unicode_extension_to_tag(VM& vm, S
// 9. If newExtension is not the empty String, then
if (!new_extension.attributes.is_empty() || !new_extension.keywords.is_empty()) {
// a. Let locale be ! InsertUnicodeExtensionAndCanonicalize(locale, newExtension).
locale = TRY(insert_unicode_extension_and_canonicalize(vm, locale_id.release_value(), move(new_extension)));
locale = MUST_OR_THROW_OOM(insert_unicode_extension_and_canonicalize(vm, locale_id.release_value(), move(new_extension)));
}
// 10. Set result.[[locale]] to locale.
@ -324,8 +323,7 @@ ThrowCompletionOr<NonnullGCPtr<Object>> LocaleConstructor::construct(FunctionObj
opt.nu = TRY(get_string_option(vm, *options, vm.names.numberingSystem, ::Locale::is_type_identifier));
// 29. Let r be ! ApplyUnicodeExtensionToTag(tag, opt, relevantExtensionKeys).
// NOTE: We TRY this operation only to propagate OOM errors.
auto result = TRY(apply_unicode_extension_to_tag(vm, tag, move(opt), relevant_extension_keys));
auto result = MUST_OR_THROW_OOM(apply_unicode_extension_to_tag(vm, tag, move(opt), relevant_extension_keys));
// 30. Set locale.[[Locale]] to r.[[locale]].
locale->set_locale(move(result.locale));