rhai/doc/src/rust/override.md

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2020-06-20 06:06:17 +02:00
Override a Built-in Function
===========================
{{#include ../links.md}}
Any similarly-named function defined in a script overrides any built-in or registered
native Rust function of the same name and number of parameters.
```rust
// Override the built-in function 'to_int'
fn to_int(num) {
print("Ha! Gotcha! " + num);
}
print(to_int(123)); // what happens?
```
A registered native Rust function, in turn, overrides any built-in function of the
same name, number and types of parameters.