Trait to register fallible custom functions returning Result<Dynamic, Box<EvalAltResult>>
with the Engine
.
Register a custom fallible function with the Engine
.
use rhai::{Engine, Dynamic, RegisterResultFn, EvalAltResult};
fn div(x: i64, y: i64) -> Result<Dynamic, Box<EvalAltResult>> {
if y == 0 {
Err("division by zero!".into())
} else {
Ok((x / y).into())
}
}
let mut engine = Engine::new();
engine.register_result_fn("div", div);
engine.eval::<i64>("div(42, 0)")
.expect_err("expecting division by zero error!");
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impl<A: Variant + Clone, B: Variant + Clone, C: Variant + Clone, D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut A, B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<A>, B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<A: Variant + Clone, B: Variant + Clone, C: Variant + Clone, D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(A, B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (A, B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<B: Variant + Clone, C: Variant + Clone, D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<B>, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<B: Variant + Clone, C: Variant + Clone, D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<C: Variant + Clone, D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<C>, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<C: Variant + Clone, D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<D>, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<D: Variant + Clone, E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<E>, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<E: Variant + Clone, F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (E, F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<F>, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<F: Variant + Clone, G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (F, G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<G>, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<G: Variant + Clone, H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(G, H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (G, H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<H>, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<H: Variant + Clone, J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(H, J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (H, J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<J>, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<J: Variant + Clone, K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(J, K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (J, K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<K>, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<K: Variant + Clone, L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(K, L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (K, L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<L>, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<L: Variant + Clone, M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(L, M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (L, M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<M>, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<M: Variant + Clone, N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(M, N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (M, N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<N>, P, Q, R, S, T, U, V)> for Engine
[src]
impl<N: Variant + Clone, P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(N, P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (N, P, Q, R, S, T, U, V)> for Engine
[src]
impl<P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<P>, Q, R, S, T, U, V)> for Engine
[src]
impl<P: Variant + Clone, Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(P, Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (P, Q, R, S, T, U, V)> for Engine
[src]
impl<Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<Q>, R, S, T, U, V)> for Engine
[src]
impl<Q: Variant + Clone, R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(Q, R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Q, R, S, T, U, V)> for Engine
[src]
impl<R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<R>, S, T, U, V)> for Engine
[src]
impl<R: Variant + Clone, S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(R, S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (R, S, T, U, V)> for Engine
[src]
impl<S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(&mut S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (Mut<S>, T, U, V)> for Engine
[src]
impl<S: Variant + Clone, T: Variant + Clone, U: Variant + Clone, V: Variant + Clone, FN: Fn(S, T, U, V) -> Result<Dynamic, Box<EvalAltResult>> + 'static> RegisterResultFn<FN, (S, T, U, V)> for Engine
[src]
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