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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use deno_core::resolve_import;
use deno_core::ModuleSpecifier;
use deno_graph::source::ResolveResponse;
use deno_graph::source::Resolver;
use deno_graph::source::DEFAULT_JSX_IMPORT_SOURCE_MODULE;
use import_map::ImportMap;
use std::sync::Arc;
use crate::args::JsxImportSourceConfig;
/// A resolver that takes care of resolution, taking into account loaded
/// import map, JSX settings.
#[derive(Debug, Clone, Default)]
pub struct CliResolver {
maybe_import_map: Option<Arc<ImportMap>>,
maybe_default_jsx_import_source: Option<String>,
maybe_jsx_import_source_module: Option<String>,
}
impl CliResolver {
pub fn maybe_new(
maybe_jsx_import_source_config: Option<JsxImportSourceConfig>,
maybe_import_map: Option<Arc<ImportMap>>,
) -> Option<Self> {
if maybe_jsx_import_source_config.is_some() || maybe_import_map.is_some() {
Some(Self {
maybe_import_map,
maybe_default_jsx_import_source: maybe_jsx_import_source_config
.as_ref()
.and_then(|c| c.default_specifier.clone()),
maybe_jsx_import_source_module: maybe_jsx_import_source_config
.map(|c| c.module),
})
} else {
None
}
}
pub fn with_import_map(import_map: Arc<ImportMap>) -> Self {
Self::maybe_new(None, Some(import_map)).unwrap()
}
pub fn as_graph_resolver(&self) -> &dyn Resolver {
self
}
}
impl Resolver for CliResolver {
fn default_jsx_import_source(&self) -> Option<String> {
self.maybe_default_jsx_import_source.clone()
}
fn jsx_import_source_module(&self) -> &str {
self
.maybe_jsx_import_source_module
.as_deref()
.unwrap_or(DEFAULT_JSX_IMPORT_SOURCE_MODULE)
}
fn resolve(
&self,
specifier: &str,
referrer: &ModuleSpecifier,
) -> ResolveResponse {
if let Some(import_map) = &self.maybe_import_map {
match import_map.resolve(specifier, referrer) {
Ok(resolved_specifier) => {
ResolveResponse::Specifier(resolved_specifier)
}
Err(err) => ResolveResponse::Err(err.into()),
}
} else {
match resolve_import(specifier, referrer.as_str()) {
Ok(specifier) => ResolveResponse::Specifier(specifier),
Err(err) => ResolveResponse::Err(err.into()),
}
}
}
}
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