use std::fmt::Debug;
use std::io::Write;
use crate::error::Result;
use super::Runtime;
/// Any object (tag/block) that can be rendered by liquid must implement this trait.
pub trait Renderable: Send + Sync + Debug {
/// Renders the Renderable instance given a Liquid runtime.
fn render(&self, runtime: &dyn Runtime) -> Result<String> {
let mut data = Vec::new();
self.render_to(&mut data, runtime)?;
Ok(String::from_utf8(data).expect("render only writes UTF-8"))
}
/// Renders the Renderable instance given a Liquid runtime.
fn render_to(&self, writer: &mut dyn Write, runtime: &dyn Runtime) -> Result<()>;
}