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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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8
Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
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@ -126,7 +126,7 @@ ThrowCompletionOr<Vector<DeprecatedString>> calendar_fields(VM& vm, Object& cale
Vector<DeprecatedString> result;
for (auto& value : list)
result.append(value.as_string().deprecated_string());
result.append(TRY(value.as_string().deprecated_string()));
return result;
}
@ -781,7 +781,7 @@ ThrowCompletionOr<double> resolve_iso_month(VM& vm, Object const& fields)
// 6. Assert: Type(monthCode) is String.
VERIFY(month_code.is_string());
auto& month_code_string = month_code.as_string().deprecated_string();
auto const& month_code_string = TRY(month_code.as_string().deprecated_string());
// 7. If the length of monthCode is not 3, throw a RangeError exception.
auto month_length = month_code_string.length();
@ -943,7 +943,7 @@ ThrowCompletionOr<Object*> default_merge_calendar_fields(VM& vm, Object const& f
// 3. For each element key of fieldsKeys, do
for (auto& key : fields_keys) {
// a. If key is not "month" or "monthCode", then
if (key.as_string().deprecated_string() != vm.names.month.as_string() && key.as_string().deprecated_string() != vm.names.monthCode.as_string()) {
if (!TRY(key.as_string().deprecated_string()).is_one_of(vm.names.month.as_string(), vm.names.monthCode.as_string())) {
auto property_key = MUST(PropertyKey::from_value(vm, key));
// i. Let propValue be ? Get(fields, key).
@ -977,7 +977,7 @@ ThrowCompletionOr<Object*> default_merge_calendar_fields(VM& vm, Object const& f
}
// See comment above.
additional_fields_keys_contains_month_or_month_code_property |= key.as_string().deprecated_string() == vm.names.month.as_string() || key.as_string().deprecated_string() == vm.names.monthCode.as_string();
additional_fields_keys_contains_month_or_month_code_property |= TRY(key.as_string().deprecated_string()) == vm.names.month.as_string() || TRY(key.as_string().deprecated_string()) == vm.names.monthCode.as_string();
}
// 6. If additionalFieldsKeys does not contain either "month" or "monthCode", then