wasmer/lib/runtime/src/macros.rs
2019-01-21 15:10:07 -08:00

44 lines
1.2 KiB
Rust

macro_rules! debug {
($fmt:expr) => (if cfg!(any(debug_assertions, feature="debug")) { println!(concat!("wasmer-runtime(:{})::", $fmt), line!()) });
($fmt:expr, $($arg:tt)*) => (if cfg!(any(debug_assertions, feature="debug")) { println!(concat!("wasmer-runtime(:{})::", $fmt, "\n"), line!(), $($arg)*) });
}
#[macro_export]
macro_rules! export_func {
($func:ident, [ $( $params:ident ),* ] -> [ $( $returns:ident ),* ]) => {{
use wasmer_runtime::{
export::{Context, Export, FuncPointer},
types::{FuncSig, Type},
vm,
};
let func: extern fn( $( $crate::__export_func_convert_type!($params), )* &mut vm::Ctx) -> ($( $crate::__export_func_convert_type!($returns) )*) = $func;
Export::Function {
func: unsafe { FuncPointer::new(func as _) },
ctx: Context::Internal,
signature: FuncSig {
params: vec![$(Type::$params,)*],
returns: vec![$(Type::$params,)*],
},
}
}};
}
#[macro_export]
#[doc(hidden)]
macro_rules! __export_func_convert_type {
(I32) => {
i32
};
(I64) => {
i64
};
(F32) => {
f32
};
(F64) => {
f64
};
}