rquickjs_core/loader/
module_loader.rs1use 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#[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 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 #[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}