Method is_valid

datafusion/functions/src/strings.rs:1164–1176

(&self, i: usize)

impl ColumnarValueRef<'_> {
    #[inline]
    pub fn is_valid(&self, i: usize) -> bool {
        match &self {
            Self::Scalar(_)
            | Self::NonNullableArray(_)
            | Self::NonNullableLargeStringArray(_)
            | Self::NonNullableStringViewArray(_)
            | Self::NonNullableBinaryArray(_) => true,
            Self::NullableArray(array) => array.is_valid(i),
            Self::NullableStringViewArray(array) => array.is_valid(i),
            Self::NullableLargeStringArray(array) => array.is_valid(i),
            Self::NullableBinaryArray(array) => array.is_valid(i),
        }
    }

    #[inline]
    pub fn nulls(&self) -> Option<NullBuffer> {