Method push

core/src/mem.rs:250–261

Allocates `datum` in the heap and returns its pointer.

(&mut self, datum: HeapDatum)

    /// Allocates `datum` in the heap and returns its pointer.
    pub(crate) fn push(&mut self, datum: HeapDatum) -> Result<u64, HeapOverflowError> {
        if matches!(&datum, HeapDatum::Text(s) if s.is_empty()) {
            return Ok(self.empty_text_ptr());
        }

        let index = U24::try_from(self.len()).map_err(|_| HeapOverflowError)?;
        if self.len() >= unchecked_u24_as_usize(self.max_entries) {
            return Err(HeapOverflowError);
        }
        self.data.push(datum);
        Ok(DatumPtr::for_heap(u32::from(index)))
    }

    /// Returns the heap entry at `index`.
    pub(crate) fn get(&self, index: usize) -> &HeapDatum {