topcoat-asset 0.2.0

A modular, batteries-included Rust web framework for server-rendered apps.
Documentation 
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use crate::BundledAsset;

pub type ResolveAssetRouteFn =
    dyn (Fn(&BundledAsset, &mut dyn std::fmt::Write) -> std::fmt::Result) + Send + Sync;

/// Function registered with the app context that formats the URL at which a bundled asset is
/// hosted by the router into a `dyn Write`.
pub struct AssetRouteResolver {
    resolve_fn: Box<ResolveAssetRouteFn>,
}

impl AssetRouteResolver {
    /// Build a resolver from a callback.
    #[must_use]
    pub fn new(resolve_fn: Box<ResolveAssetRouteFn>) -> Self {
        Self { resolve_fn }
    }

    /// Invoke the underlying callback.
    ///
    /// # Errors
    ///
    /// Propagates errors of the registered [`ResolveAssetRouteFn`].
    pub fn resolve(
        &self,
        bundled_asset: &BundledAsset,
        write: &mut dyn std::fmt::Write,
    ) -> std::fmt::Result {
        (self.resolve_fn)(bundled_asset, write)
    }
}