Trait SafeFnPtr 

pub trait SafeFnPtr: FnPtr {
    // Required method
    fn invoke(&self, args: Self::Args) -> Self::Output;
}

Marker trait for all safe function pointer types (fn / extern fn).

Required Methods

fn invoke(&self, args: Self::Args) -> Self::Output

Invokes the function pointed to with the given args.

Examples

fn add(a: i32, b: i32) -> i32 { a + b }

let f: fn(i32, i32) -> i32 = add;
let result = f.invoke((2, 3));
assert_eq!(result, 5);

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<Ret: 'static> SafeFnPtr for fn() -> Ret

fn invoke(&self, (): Self::Args) -> Self::Output

impl<Ret: 'static> SafeFnPtr for extern "C" fn() -> Ret

fn invoke(&self, (): Self::Args) -> Self::Output

impl<Ret: 'static> SafeFnPtr for extern "system" fn() -> Ret

fn invoke(&self, (): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static> SafeFnPtr for fn(A) -> Ret

fn invoke(&self, (__arg_0): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static> SafeFnPtr for extern "C" fn(A) -> Ret

fn invoke(&self, (__arg_0): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static> SafeFnPtr for extern "system" fn(A) -> Ret

fn invoke(&self, (__arg_0): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static> SafeFnPtr for fn(A, B) -> Ret

fn invoke(&self, (__arg_0, __arg_1): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static> SafeFnPtr for extern "C" fn(A, B) -> Ret

fn invoke(&self, (__arg_0, __arg_1): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static> SafeFnPtr for extern "system" fn(A, B) -> Ret

fn invoke(&self, (__arg_0, __arg_1): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static> SafeFnPtr for fn(A, B, C) -> Ret

fn invoke(&self, (__arg_0, __arg_1, __arg_2): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static> SafeFnPtr for extern "C" fn(A, B, C) -> Ret

fn invoke(&self, (__arg_0, __arg_1, __arg_2): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static> SafeFnPtr for extern "system" fn(A, B, C) -> Ret

fn invoke(&self, (__arg_0, __arg_1, __arg_2): Self::Args) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static> SafeFnPtr for fn(A, B, C, D) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static> SafeFnPtr for extern "C" fn(A, B, C, D) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static> SafeFnPtr for extern "system" fn(A, B, C, D) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static, E: 'static> SafeFnPtr for fn(A, B, C, D, E) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3, __arg_4): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static, E: 'static> SafeFnPtr for extern "C" fn(A, B, C, D, E) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3, __arg_4): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static, E: 'static> SafeFnPtr for extern "system" fn(A, B, C, D, E) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3, __arg_4): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static, E: 'static, F: 'static> SafeFnPtr for fn(A, B, C, D, E, F) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3, __arg_4, __arg_5): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static, E: 'static, F: 'static> SafeFnPtr for extern "C" fn(A, B, C, D, E, F) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3, __arg_4, __arg_5): Self::Args, ) -> Self::Output

impl<Ret: 'static, A: 'static, B: 'static, C: 'static, D: 'static, E: 'static, F: 'static> SafeFnPtr for extern "system" fn(A, B, C, D, E, F) -> Ret

fn invoke( &self, (__arg_0, __arg_1, __arg_2, __arg_3, __arg_4, __arg_5): Self::Args, ) -> Self::Output

Implementors