rquickjs_core/loader/
module_loader.rs

1use crate::{module::ModuleDef, Ctx, Error, Module, Result};
2use std::{collections::HashMap, fmt::Debug};
3
4use super::Loader;
5
6type LoadFn = for<'js> fn(Ctx<'js>, Vec<u8>) -> Result<Module<'js>>;
7
8/// The builtin native module loader
9///
10/// This loader can be used as the nested backing loader in user-defined loaders.
11#[derive(Debug, Default)]
12pub struct ModuleLoader {
13    modules: HashMap<String, LoadFn>,
14}
15
16impl ModuleLoader {
17    fn load_func<'js, D: ModuleDef>(ctx: Ctx<'js>, name: Vec<u8>) -> Result<Module<'js>> {
18        Module::declare_def::<D, _>(ctx, name)
19    }
20
21    /// Add module
22    pub fn add_module<N: Into<String>, M: ModuleDef>(&mut self, name: N, _module: M) -> &mut Self {
23        self.modules.insert(name.into(), Self::load_func::<M>);
24        self
25    }
26
27    /// Add module
28    #[must_use]
29    pub fn with_module<N: Into<String>, M: ModuleDef>(mut self, name: N, module: M) -> Self {
30        self.add_module(name, module);
31        self
32    }
33}
34
35impl Loader for ModuleLoader {
36    fn load<'js>(&mut self, ctx: &Ctx<'js>, path: &str) -> Result<Module<'js>> {
37        let load = self
38            .modules
39            .remove(path)
40            .ok_or_else(|| Error::new_loading(path))?;
41
42        (load)(ctx.clone(), Vec::from(path))
43    }
44}
rquickjs_core/loader/module_loader.rs

rquickjs_core/loader/
module_loader.rs
