Method validate_equal_lengths

arrow-array/src/builder/map_builder.rs:159–168

(&self)

    /// Validates that key and value builders have equal lengths.
    #[inline]
    fn validate_equal_lengths(&self) -> Result<(), ArrowError> {
        if self.key_builder.len() != self.value_builder.len() {
            return Err(ArrowError::InvalidArgumentError(format!(
                "Cannot append to a map builder when its keys and values have unequal lengths of {} and {}",
                self.key_builder.len(),
                self.value_builder.len()
            )));
        }
        Ok(())
    }

    /// Finish the current map array slot
    ///