Function gtmpl::funcs::call [−] [src]

pub fn call(args: &[Arc<Any>]) -> Result<Arc<Any>, String>

Returns the result of calling the first argument, which must be a function, with the remaining arguments as parameters.

Example

#[macro_use]
extern crate gtmpl;
extern crate gtmpl_value;
use gtmpl_value::Function;
use gtmpl::{template, Value};

fn main() {
    gtmpl_fn!(
    fn add(a: u64, b: u64) -> Result<u64, String> {
        Ok(a + b)
    });
    let equal = template(r#"{{ call . 1 2 }}"#, Value::Function(Function { f: add }));
    assert_eq!(&equal.unwrap(), "3");
}