Method append

arrow-array/src/builder/map_builder.rs:174–179

(&mut self, is_valid: bool)

    /// Returns an error if the key and values builders are in an inconsistent state.
    #[inline]
    pub fn append(&mut self, is_valid: bool) -> Result<(), ArrowError> {
        self.validate_equal_lengths()?;
        self.offsets_builder.push(self.key_builder.len() as i32);
        self.null_buffer_builder.append(is_valid);
        Ok(())
    }

    /// Append `n` nulls to this [`MapBuilder`]
    ///