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use crate::object::ConfigObject;
pub trait ConfigSource: std::fmt::Debug {
type Error: std::error::Error;
fn load<'a>(&'a self) -> Result<ConfigObject<'a>, Self::Error>;
}
#[cfg(test)]
pub(crate) mod test_source {
use crate::source::ConfigSource;
use crate::object::ConfigObject;
use crate::element::ConfigElement;
use crate::description::ConfigSourceDescription;
pub(crate) struct TestSource<'a, G>(pub(crate) G)
where G: Fn() -> ConfigElement<'a>;
impl<'g, G> std::fmt::Debug for TestSource<'g, G>
where G: Fn() -> ConfigElement<'g>
{
fn fmt(&self, _: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
Ok(())
}
}
impl<'g, G> ConfigSource for TestSource<'g, G>
where G: Fn() -> ConfigElement<'g>
{
type Error = std::convert::Infallible; // can never happen
fn load<'a>(&'a self) -> Result<ConfigObject<'a>, Self::Error> {
Ok(ConfigObject::new(self.0(), ConfigSourceDescription::Unknown))
}
}
}
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