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denoland-deno/cli/resolver.rs

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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
use deno_core::error::AnyError;
use deno_core::ModuleSpecifier;
use deno_graph::source::Resolver;
use import_map::ImportMap;
/// Wraps an import map to be used when building a deno_graph module graph.
/// This is done to avoid having `import_map` be a direct dependency of
/// `deno_graph`.
#[derive(Debug)]
pub(crate) struct ImportMapResolver<'a>(&'a ImportMap);
impl<'a> ImportMapResolver<'a> {
pub fn new(import_map: &'a ImportMap) -> Self {
Self(import_map)
}
pub fn as_resolver(&'a self) -> &'a dyn Resolver {
self
}
}
impl Resolver for ImportMapResolver<'_> {
fn resolve(
&self,
specifier: &str,
referrer: &ModuleSpecifier,
) -> Result<ModuleSpecifier, AnyError> {
self
.0
.resolve(specifier, referrer.as_str())
.map_err(|err| err.into())
}
}