[−][src]Crate wapc_guest
wapc-guest
The wapc-guest
library provides WebAssembly module developers with access to a
waPC-compliant host runtime. Each guest module has a single
call handler, declared with the wapc_handler!
macro. Inside this call handler, the guest
module should check the operation of the delivered message and handle it accordingly,
returning any binary payload in response.
Example
extern crate wapc_guest as guest; use guest::prelude::*; wapc_handler!(handle_wapc); pub fn handle_wapc(operation: &str, msg: &[u8]) -> CallResult { match operation { "sample:Guest!Hello" => hello_world(msg), _ => Err("bad dispatch".into()), } } fn hello_world( _msg: &[u8]) -> CallResult { let _res = host_call("myBinding", "sample:Host", "Call", b"hello")?; Ok(vec![]) }
Modules
errors | Errors |
prelude | Glob imports for common guest module development |
Macros
wapc_handler |
Functions
__console_log⚠ | |
__guest_error⚠ | |
__guest_request⚠ | |
__guest_response⚠ | |
__host_call⚠ | |
__host_error⚠ | |
__host_error_len⚠ | |
__host_response⚠ | |
__host_response_len⚠ | |
console_log | |
host_call | The function through which all host calls take place. |
Type Definitions
Result | WaPC Guest SDK result type |