Examples

This directory contains a number of examples that demonstrate how to use the WasmKit library.

Running

From this directory:

swift run PrintAdd
swift run Factorial
swift run StringPassing
swift run WASI-Hello

StringPassing

StringPassing demonstrates a common UTF-8 string ABI for host <-> guest interop:

• WebAssembly passes a (ptr: i32, len: i32) pair into an imported host function (printer.print_str), and the host reads the bytes from the module's exported memory.
• The host allocates space in guest memory by calling an exported alloc(size: i32) -> i32, writes UTF-8 bytes into the returned region, then calls an exported checksum(ptr: i32, len: i32) -> i32.