[−][src]Function watt::proc_macro_attribute
pub fn proc_macro_attribute(
fun: &str,
args: TokenStream,
input: TokenStream,
wasm: &[u8]
) -> TokenStream
A #[proc_macro_attribute] implemented in wasm!
Canonical macro implementation:
use proc_macro2::TokenStream; #[no_mangle] pub extern "C" fn my_macro(args: TokenStream, input: TokenStream) -> TokenStream { proc_macro2::set_wasm_panic_hook(); ... }
Canonical entry point:
extern crate proc_macro; use proc_macro::TokenStream; static WASM: &[u8] = include_bytes!("my_macro.wasm"); #[proc_macro_attribute] pub fn my_macro(args: TokenStream, input: TokenStream) -> TokenStream { watt::proc_macro_attribute("my_macro", args, input, WASM) }