LibJS: Convert default_number_option() to ThrowCompletionOr

Userland/Libraries/LibJS/Runtime/Intl/AbstractOperations.cpp

@@ -661,7 +661,7 @@ ThrowCompletionOr<Value> get_option(GlobalObject& global_object, Object const& o
 }
 
 // 9.2.14 DefaultNumberOption ( value, minimum, maximum, fallback ), https://tc39.es/ecma402/#sec-defaultnumberoption
-Optional<int> default_number_option(GlobalObject& global_object, Value value, int minimum, int maximum, Optional<int> fallback)
+ThrowCompletionOr<Optional<int>> default_number_option(GlobalObject& global_object, Value value, int minimum, int maximum, Optional<int> fallback)
 {
     auto& vm = global_object.vm();
 
@@ -671,17 +671,15 @@ Optional<int> default_number_option(GlobalObject& global_object, Value value, in
 
     // 2. Let value be ? ToNumber(value).
     value = value.to_number(global_object);
-    if (vm.exception())
-        return {};
+    if (auto* exception = vm.exception())
+        return throw_completion(exception->value());
 
     // 3. If value is NaN or less than minimum or greater than maximum, throw a RangeError exception.
-    if (value.is_nan() || (value.as_double() < minimum) || (value.as_double() > maximum)) {
-        vm.throw_exception<RangeError>(global_object, ErrorType::IntlNumberIsNaNOrOutOfRange, value, minimum, maximum);
-        return {};
-    }
+    if (value.is_nan() || (value.as_double() < minimum) || (value.as_double() > maximum))
+        return vm.throw_completion<RangeError>(global_object, ErrorType::IntlNumberIsNaNOrOutOfRange, value, minimum, maximum);
 
     // 4. Return floor(value).
-    return floor(value.as_double());
+    return { floor(value.as_double()) };
 }
 
 // 9.2.15 GetNumberOption ( options, property, minimum, maximum, fallback ), https://tc39.es/ecma402/#sec-getnumberoption
@@ -696,7 +694,7 @@ Optional<int> get_number_option(GlobalObject& global_object, Object const& optio
         return {};
 
     // 3. Return ? DefaultNumberOption(value, minimum, maximum, fallback).
-    return default_number_option(global_object, value, minimum, maximum, fallback);
+    return TRY_OR_DISCARD(default_number_option(global_object, value, minimum, maximum, move(fallback)));
 }
 
 // 9.2.16 PartitionPattern ( pattern ), https://tc39.es/ecma402/#sec-partitionpattern

Userland/Libraries/LibJS/Runtime/Intl/AbstractOperations.h

@@ -47,7 +47,7 @@ Vector<String> best_fit_supported_locales(Vector<String> const& requested_locale
 ThrowCompletionOr<Array*> supported_locales(GlobalObject&, Vector<String> const& requested_locales, Value options);
 ThrowCompletionOr<Object*> coerce_options_to_object(GlobalObject& global_object, Value options);
 ThrowCompletionOr<Value> get_option(GlobalObject& global_object, Object const& options, PropertyName const& property, Value::Type type, Vector<StringView> const& values, Fallback fallback);
-Optional<int> default_number_option(GlobalObject& global_object, Value value, int minimum, int maximum, Optional<int> fallback);
+ThrowCompletionOr<Optional<int>> default_number_option(GlobalObject& global_object, Value value, int minimum, int maximum, Optional<int> fallback);
 Optional<int> get_number_option(GlobalObject& global_object, Object const& options, PropertyName const& property, int minimum, int maximum, Optional<int> fallback);
 Vector<PatternPartition> partition_pattern(StringView pattern);
 

Userland/Libraries/LibJS/Runtime/Intl/NumberFormat.cpp

@@ -282,14 +282,16 @@ void set_number_format_digit_options(GlobalObject& global_object, NumberFormat&
         intl_object.set_rounding_type(NumberFormat::RoundingType::SignificantDigits);
 
         // b. Let mnsd be ? DefaultNumberOption(mnsd, 1, 21, 1).
-        auto min_digits = default_number_option(global_object, min_significant_digits, 1, 21, 1);
-        if (vm.exception())
+        auto min_digits_or_error = default_number_option(global_object, min_significant_digits, 1, 21, 1);
+        if (min_digits_or_error.is_error())
             return;
+        auto min_digits = min_digits_or_error.release_value();
 
         // c. Let mxsd be ? DefaultNumberOption(mxsd, mnsd, 21, 21).
-        auto max_digits = default_number_option(global_object, max_significant_digits, *min_digits, 21, 21);
-        if (vm.exception())
+        auto max_digits_or_error = default_number_option(global_object, max_significant_digits, *min_digits, 21, 21);
+        if (max_digits_or_error.is_error())
             return;
+        auto max_digits = max_digits_or_error.release_value();
 
         // d. Set intlObj.[[MinimumSignificantDigits]] to mnsd.
         intl_object.set_min_significant_digits(*min_digits);
@@ -303,14 +305,16 @@ void set_number_format_digit_options(GlobalObject& global_object, NumberFormat&
         intl_object.set_rounding_type(NumberFormat::RoundingType::FractionDigits);
 
         // b. Let mnfd be ? DefaultNumberOption(mnfd, 0, 20, undefined).
-        auto min_digits = default_number_option(global_object, min_fraction_digits, 0, 20, {});
-        if (vm.exception())
+        auto min_digits_or_error = default_number_option(global_object, min_fraction_digits, 0, 20, {});
+        if (min_digits_or_error.is_error())
             return;
+        auto min_digits = min_digits_or_error.release_value();
 
         // c. Let mxfd be ? DefaultNumberOption(mxfd, 0, 20, undefined).
-        auto max_digits = default_number_option(global_object, max_fraction_digits, 0, 20, {});
-        if (vm.exception())
+        auto max_digits_or_error = default_number_option(global_object, max_fraction_digits, 0, 20, {});
+        if (max_digits_or_error.is_error())
             return;
+        auto max_digits = max_digits_or_error.release_value();
 
         // d. If mnfd is undefined, set mnfd to min(mnfdDefault, mxfd).
         if (!min_digits.has_value()) {