Trait gstreamer::
source · pub trait FormattedValueNoneBuilder: FormattedValueFullRange {
// Required method
fn none() -> Self;
// Provided method
fn none_for_format(format: Format) -> Self { ... }
}Required Methods§
sourcefn none() -> Self
fn none() -> Self
Returns the None value for Self as a FullRange if such a value can be represented.
- For
SpecificFormattedValues, this results inOption::<FormattedValueIntrinsic>::None. - For
GenericFormattedValue, this can only be obtained usingSelf::none_for_formatbecause theNoneis an inner value of some of the variants.
§Panics
Panics if Self is GenericFormattedValue in which case, the Format must be known.
Provided Methods§
sourcefn none_for_format(format: Format) -> Self
fn none_for_format(format: Format) -> Self
Returns the None value for Self if such a value can be represented.
- For
SpecificFormattedValues, this is the same asSelf::none()if theformatmatches theSpecificFormattedValue’s format. - For
GenericFormattedValuethis is the variant for the specifiedformat, initialized withNoneas a value, if theformatcan represent that value.
§Panics
Panics if None can’t be represented by Self for format or by the requested
GenericFormattedValue variant.
Object Safety§
This trait is not object safe.