Macro wasmer_runtime::func

macro_rules! func {
    ($function:expr) => { ... };
}

Helper macro to create a new Func object using the provided function pointer.

Usage

Function pointers or closures are supported. Closures can capture their environment (with move). The first parameter is of kind vm::Ctx.

// A host function.
fn func(ctx: &mut vm::Ctx, n: i32) -> i32 {
    n
}

let i = 7;

let import_object = imports! {
    "env" => {
        "foo" => func!(func),
        // A closure with a captured environment.
        "bar" => func!(move |_: &mut vm::Ctx, n: i32| -> i32 {
            n + i
        }),
    },
};