Module abi 

Low-level linear-memory ABI: allocation, deallocation, and buffer packing across the Wasm host/guest boundary.

Functions

host_alloc

Allocate len bytes in the module’s linear memory and return the pointer as a u32. Returns 0 for a zero-length request.

host_dealloc

Free a buffer previously returned by host_alloc (or packed into a -> u64 ABI return). No-op for null pointers, zero length, or an oversized length that could not have been allocated.

read_input^⚠

View the host-written input buffer as a byte slice.

write_output

Leak bytes into linear memory and return the packed (ptr << 32) | len the host uses to read and later free it.