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LibJS: Simplify the Intl.DurationFormat GetDurationUnitOptions AO
This is an editorial change in the ECMA-402 spec. See:
d097048
This commit is contained in:
Timothy Flynn
Tim Flynn
parent
2f023c2d9c
commit
1e462daa9b
Notes:
github-actions[bot]
2025-03-04 12:37:13 +00:00
Author: https://github.com/trflynn89
Commit: 1e462daa9b
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3785
1 changed files with 56 additions and 67 deletions
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@ -185,6 +185,28 @@ static GC::Ref<ListFormat> construct_list_format(VM& vm, DurationFormat const& d
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return static_cast<ListFormat&>(*list_format);
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}
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// 13.5.6.1 ValidateDurationUnitStyle ( unit, style, display, prevStyle ), https://tc39.es/ecma402/#sec-validatedurationunitstyle
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// AD-HOC: Our implementation takes extra parameters for better exception messages.
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static ThrowCompletionOr<void> validate_duration_unit_style(VM& vm, PropertyKey const& unit, DurationFormat::ValueStyle style, DurationFormat::Display display, Optional<DurationFormat::ValueStyle> previous_style, StringView display_field)
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{
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// 1. If display is "always" and style is "fractional", throw a RangeError exception.
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if (display == DurationFormat::Display::Always && style == DurationFormat::ValueStyle::Fractional)
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return vm.throw_completion<RangeError>(ErrorType::IntlFractionalUnitsMixedWithAlwaysDisplay, unit, display_field);
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// 2. If prevStyle is "fractional" and style is not "fractional", throw a RangeError exception.
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if (previous_style == DurationFormat::ValueStyle::Fractional && style != DurationFormat::ValueStyle::Fractional)
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return vm.throw_completion<RangeError>(ErrorType::IntlFractionalUnitFollowedByNonFractionalUnit, unit);
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// 3. If prevStyle is "numeric" or "2-digit" and style is not one of "fractional", "numeric" or "2-digit", throw a RangeError exception.
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if (first_is_one_of(previous_style, DurationFormat::ValueStyle::Numeric, DurationFormat::ValueStyle::TwoDigit)
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&& !first_is_one_of(style, DurationFormat::ValueStyle::Fractional, DurationFormat::ValueStyle::Numeric, DurationFormat::ValueStyle::TwoDigit)) {
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return vm.throw_completion<RangeError>(ErrorType::IntlNonNumericOr2DigitAfterNumericOr2Digit);
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}
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// 4. Return unused.
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return {};
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}
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// 13.5.6 GetDurationUnitOptions ( unit, options, baseStyle, stylesList, digitalBase, prevStyle, twoDigitHours ), https://tc39.es/ecma402/#sec-getdurationunitoptions
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ThrowCompletionOr<DurationUnitOptions> get_duration_unit_options(VM& vm, DurationFormat::Unit unit, Object const& options, DurationFormat::Style base_style, ReadonlySpan<StringView> styles_list, DurationFormat::ValueStyle digital_base, Optional<DurationFormat::ValueStyle> previous_style, bool two_digit_hours)
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{
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@ -201,51 +223,41 @@ ThrowCompletionOr<DurationUnitOptions> get_duration_unit_options(VM& vm, Duratio
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if (style_value.is_undefined()) {
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// a. If baseStyle is "digital", then
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if (base_style == DurationFormat::Style::Digital) {
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// i. If unit is not one of "hours", "minutes", or "seconds", then
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if (!first_is_one_of(unit, DurationFormat::Unit::Hours, DurationFormat::Unit::Minutes, DurationFormat::Unit::Seconds)) {
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// 1. Set displayDefault to "auto".
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display_default = "auto"sv;
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}
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// ii. Set style to digitalBase.
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// i. Set style to digitalBase.
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style = digital_base;
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}
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// b. Else,
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else {
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// i. If prevStyle is "fractional", "numeric" or "2-digit", then
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if (first_is_one_of(previous_style, DurationFormat::ValueStyle::Fractional, DurationFormat::ValueStyle::Numeric, DurationFormat::ValueStyle::TwoDigit)) {
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// 1. If unit is not one of "minutes" or "seconds", then
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if (!first_is_one_of(unit, DurationFormat::Unit::Minutes, DurationFormat::Unit::Seconds)) {
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// a. Set displayDefault to "auto".
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display_default = "auto"sv;
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}
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// 2. Set style to "numeric".
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style = DurationFormat::ValueStyle::Numeric;
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}
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// ii. Else,
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else {
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// 1. Set displayDefault to "auto".
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// ii. If unit is not one of "hours", "minutes", or "seconds", set displayDefault to "auto".
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if (!first_is_one_of(unit, DurationFormat::Unit::Hours, DurationFormat::Unit::Minutes, DurationFormat::Unit::Seconds))
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display_default = "auto"sv;
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}
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// b. Else if prevStyle is one of "fractional", "numeric" or "2-digit", then
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else if (first_is_one_of(previous_style, DurationFormat::ValueStyle::Fractional, DurationFormat::ValueStyle::Numeric, DurationFormat::ValueStyle::TwoDigit)) {
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// i. Set style to "numeric".
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style = DurationFormat::ValueStyle::Numeric;
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// 2. Set style to baseStyle.
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style = static_cast<DurationFormat::ValueStyle>(base_style);
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}
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// ii. If unit is not "minutes" or "seconds", set displayDefault to "auto".
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if (!first_is_one_of(unit, DurationFormat::Unit::Minutes, DurationFormat::Unit::Seconds))
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display_default = "auto"sv;
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}
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// c. Else,
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else {
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// i. Set style to baseStyle.
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style = static_cast<DurationFormat::ValueStyle>(base_style);
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// ii. Set displayDefault to "auto".
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display_default = "auto"sv;
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}
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} else {
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style = DurationFormat::value_style_from_string(style_value.as_string().utf8_string_view());
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}
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// 4. If style is "numeric", then
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if (style == DurationFormat::ValueStyle::Numeric) {
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// a. If unit is one of "milliseconds", "microseconds", or "nanoseconds", then
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if (first_is_one_of(unit, DurationFormat::Unit::Milliseconds, DurationFormat::Unit::Microseconds, DurationFormat::Unit::Nanoseconds)) {
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// i. Set style to "fractional".
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style = DurationFormat::ValueStyle::Fractional;
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// 4. If style is "numeric" and unit is one of "milliseconds", "microseconds", or "nanoseconds", then
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if (style == DurationFormat::ValueStyle::Numeric && first_is_one_of(unit, DurationFormat::Unit::Milliseconds, DurationFormat::Unit::Microseconds, DurationFormat::Unit::Nanoseconds)) {
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// a. Set style to "fractional".
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style = DurationFormat::ValueStyle::Fractional;
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// ii. Set displayDefault to "auto".
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display_default = "auto"sv;
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}
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// b. Set displayDefault to "auto".
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display_default = "auto"sv;
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}
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// 5. Let displayField be the string-concatenation of unit and "Display".
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@ -255,43 +267,20 @@ ThrowCompletionOr<DurationUnitOptions> get_duration_unit_options(VM& vm, Duratio
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auto display_value = TRY(get_option(vm, options, display_field.to_byte_string(), OptionType::String, { "auto"sv, "always"sv }, display_default));
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auto display = DurationFormat::display_from_string(display_value.as_string().utf8_string());
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// 7. If display is "always" and style is "fractional", then
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if (display == DurationFormat::Display::Always && style == DurationFormat::ValueStyle::Fractional) {
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// a. Throw a RangeError exception.
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return vm.throw_completion<RangeError>(ErrorType::IntlFractionalUnitsMixedWithAlwaysDisplay, unit_property_key, display_field);
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}
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// 7. Perform ? ValidateDurationUnitStyle(unit, style, display, prevStyle).
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TRY(validate_duration_unit_style(vm, unit_property_key, style, display, previous_style, display_field));
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// 8. If prevStyle is "fractional", then
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if (previous_style == DurationFormat::ValueStyle::Fractional) {
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// a. If style is not "fractional", then
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if (style != DurationFormat::ValueStyle::Fractional) {
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// i. Throw a RangeError exception.
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return vm.throw_completion<RangeError>(ErrorType::IntlFractionalUnitFollowedByNonFractionalUnit, unit_property_key);
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}
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}
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// 8. If unit is "hours" and twoDigitHours is true, set style to "2-digit".
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if (unit == DurationFormat::Unit::Hours && two_digit_hours)
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style = DurationFormat::ValueStyle::TwoDigit;
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// 9. If prevStyle is "numeric" or "2-digit", then
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if (first_is_one_of(previous_style, DurationFormat::ValueStyle::Numeric, DurationFormat::ValueStyle::TwoDigit)) {
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// a. If style is not "fractional", "numeric" or "2-digit", then
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if (!first_is_one_of(style, DurationFormat::ValueStyle::Fractional, DurationFormat::ValueStyle::Numeric, DurationFormat::ValueStyle::TwoDigit)) {
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// i. Throw a RangeError exception.
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return vm.throw_completion<RangeError>(ErrorType::IntlNonNumericOr2DigitAfterNumericOr2Digit);
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}
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// b. If unit is "minutes" or "seconds", then
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if (first_is_one_of(unit, DurationFormat::Unit::Minutes, DurationFormat::Unit::Seconds)) {
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// i. Set style to "2-digit".
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style = DurationFormat::ValueStyle::TwoDigit;
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}
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}
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// 10. If unit is "hours" and twoDigitHours is true, then
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if (unit == DurationFormat::Unit::Hours && two_digit_hours) {
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// a. Set style to "2-digit".
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// 9. If unit is "minutes" or "seconds" and prevStyle is "numeric" or "2-digit", set style to "2-digit".
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if (first_is_one_of(unit, DurationFormat::Unit::Minutes, DurationFormat::Unit::Seconds)
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&& first_is_one_of(previous_style, DurationFormat::ValueStyle::Numeric, DurationFormat::ValueStyle::TwoDigit)) {
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style = DurationFormat::ValueStyle::TwoDigit;
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}
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// 11. Return the Record { [[Style]]: style, [[Display]]: display }.
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// 10. Return the Record { [[Style]]: style, [[Display]]: display }.
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return DurationUnitOptions { .style = style, .display = display };
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}
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