Method grow

crates/wasmtime/src/runtime/memory.rs:637–641

Grows this WebAssembly memory by `delta` pages. This will attempt to add `delta` more pages of memory on to the end of this `Memory` instance. If successful this may relocate the memory and cause [`Memory::data_ptr`] to return a new value. Additionally any unsafely constructed slices into this memory may no longer be valid. On success returns the number of pages this memory previously had before

(&self, mut store: impl AsContextMut, delta: u64)

    /// # }
    /// ```
    pub fn grow(&self, mut store: impl AsContextMut, delta: u64) -> Result<u64> {
        let store = store.as_context_mut().0;
        let (mut limiter, store) = store.validate_sync_resource_limiter_and_store_opaque()?;
        vm::assert_ready(self._grow(store, limiter.as_mut(), delta))
    }

    /// Async variant of [`Memory::grow`]. Required when using a
    /// [`ResourceLimiterAsync`](`crate::ResourceLimiterAsync`).