Enum OperatorFunction 

pub enum OperatorFunction {
    Arg0(fn() -> Dynamic),
    Arg1(fn(Dynamic) -> Dynamic),
    Arg2(fn(Dynamic, Dynamic) -> Dynamic),
    Arg3(fn(Dynamic, Dynamic, Dynamic) -> Dynamic),
    Arg4(fn(Dynamic, Dynamic, Dynamic, Dynamic) -> Dynamic),
    Arg5(fn(Dynamic, Dynamic, Dynamic, Dynamic, Dynamic) -> Dynamic),
    Arg6(fn(Dynamic, Dynamic, Dynamic, Dynamic, Dynamic, Dynamic) -> Dynamic),
}

Represents a custom operator function that can be registered with Casbin.

Custom functions accept Rhai’s Dynamic type, which can hold any value:

• Strings (as ImmutableString)
• Integers (i32 or i64)
• Booleans
• Floats (f32 or f64)
• Arrays
• Maps
• And more…

This allows for flexible custom functions that can work with different types.

Example

use casbin::{CoreApi, OperatorFunction};
use rhai::Dynamic;

// Function that works with integers
let int_fn = OperatorFunction::Arg2(|a: Dynamic, b: Dynamic| {
    let a_int = a.as_int().unwrap_or(0);
    let b_int = b.as_int().unwrap_or(0);
    (a_int > b_int).into()
});

// Function that works with strings
let str_fn = OperatorFunction::Arg2(|a: Dynamic, b: Dynamic| {
    use casbin::model::function_map::dynamic_to_str;
    let a_str = dynamic_to_str(&a);
    let b_str = dynamic_to_str(&b);
    a_str.contains(b_str.as_ref()).into()
});

Variants

Arg0(fn() -> Dynamic)

Arg1(fn(Dynamic) -> Dynamic)

Arg2(fn(Dynamic, Dynamic) -> Dynamic)

Arg3(fn(Dynamic, Dynamic, Dynamic) -> Dynamic)

Arg4(fn(Dynamic, Dynamic, Dynamic, Dynamic) -> Dynamic)

Arg5(fn(Dynamic, Dynamic, Dynamic, Dynamic, Dynamic) -> Dynamic)

Arg6(fn(Dynamic, Dynamic, Dynamic, Dynamic, Dynamic, Dynamic) -> Dynamic)

Trait Implementations

impl Clone for OperatorFunction

fn clone(&self) -> OperatorFunction

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for OperatorFunction