1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
use crate::{
helper::{Helper, HelperValue},
parser::ast::Node,
render::{Context, Render},
};
use serde_json::Value;
pub struct If;
impl Helper for If {
fn call<'render, 'call>(
&self,
rc: &mut Render<'render>,
ctx: &Context<'call>,
template: Option<&'render Node<'render>>,
) -> HelperValue {
ctx.arity(1..1)?;
if let Some(template) = template {
if ctx.is_truthy(ctx.get(0).unwrap()) {
rc.template(template)?;
} else if let Some(node) = rc.inverse(template)? {
rc.template(node)?;
}
Ok(None)
} else {
Ok(Some(Value::Bool(ctx.is_truthy(ctx.get(0).unwrap()))))
}
}
}