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compiler.rs
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compiler.rs
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use super::dispatch_json::Deserialize;
use super::dispatch_json::JsonOp;
use super::dispatch_json::Value;
use crate::futures::future::try_join_all;
use crate::op_error::OpError;
use crate::state::State;
use deno_core::CoreIsolate;
use deno_core::ModuleLoader;
use deno_core::ModuleSpecifier;
use deno_core::ZeroCopyBuf;
use futures::future::FutureExt;
pub fn init(i: &mut CoreIsolate, s: &State) {
i.register_op("op_resolve_modules", s.stateful_json_op(op_resolve_modules));
i.register_op(
"op_fetch_source_files",
s.stateful_json_op(op_fetch_source_files),
);
let custom_assets = std::collections::HashMap::new(); // TODO(ry) use None.
i.register_op(
"op_fetch_asset",
deno_typescript::op_fetch_asset(custom_assets),
);
}
#[derive(Deserialize, Debug)]
struct SpecifiersReferrerArgs {
specifiers: Vec<String>,
referrer: Option<String>,
}
fn op_resolve_modules(
state: &State,
args: Value,
_data: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: SpecifiersReferrerArgs = serde_json::from_value(args)?;
let (referrer, is_main) = if let Some(referrer) = args.referrer {
(referrer, false)
} else {
("<unknown>".to_owned(), true)
};
let mut specifiers = vec![];
for specifier in &args.specifiers {
let specifier = state
.resolve(specifier, &referrer, is_main)
.map_err(OpError::from)?;
specifiers.push(specifier.as_str().to_owned());
}
Ok(JsonOp::Sync(json!(specifiers)))
}
fn op_fetch_source_files(
state: &State,
args: Value,
_data: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let args: SpecifiersReferrerArgs = serde_json::from_value(args)?;
let ref_specifier = if let Some(referrer) = args.referrer {
let specifier = ModuleSpecifier::resolve_url(&referrer)
.expect("Referrer is not a valid specifier");
Some(specifier)
} else {
None
};
let s = state.borrow();
let global_state = s.global_state.clone();
let permissions = s.permissions.clone();
let perms_ = permissions.clone();
drop(s);
let file_fetcher = global_state.file_fetcher.clone();
let specifiers = args.specifiers.clone();
let future = async move {
let file_futures: Vec<_> = specifiers
.into_iter()
.map(|specifier| {
let file_fetcher_ = file_fetcher.clone();
let ref_specifier_ = ref_specifier.clone();
let perms_ = perms_.clone();
async move {
let resolved_specifier = ModuleSpecifier::resolve_url(&specifier)
.expect("Invalid specifier");
// TODO(bartlomieju): duplicated from `state.rs::ModuleLoader::load` - deduplicate
// Verify that remote file doesn't try to statically import local file.
if let Some(referrer) = ref_specifier_.as_ref() {
let referrer_url = referrer.as_url();
match referrer_url.scheme() {
"http" | "https" => {
let specifier_url = resolved_specifier.as_url();
match specifier_url.scheme() {
"http" | "https" => {},
_ => {
let e = OpError::permission_denied("Remote module are not allowed to statically import local modules. Use dynamic import instead.".to_string());
return Err(e.into());
}
}
},
_ => {}
}
}
file_fetcher_
.fetch_source_file(&resolved_specifier, ref_specifier_, perms_)
.await
}
.boxed_local()
})
.collect();
let files = try_join_all(file_futures).await.map_err(OpError::from)?;
// We want to get an array of futures that resolves to
let v = files.into_iter().map(|f| {
async {
// if the source file contains a `types_url` we need to replace
// the module with the type definition when requested by the compiler
let file = match f.types_url {
Some(types_url) => {
let types_specifier = ModuleSpecifier::from(types_url);
global_state
.file_fetcher
.fetch_source_file(
&types_specifier,
ref_specifier.clone(),
permissions.clone(),
)
.await
.map_err(OpError::from)?
}
_ => f,
};
let source_code = String::from_utf8(file.source_code).map_err(|_| OpError::invalid_utf8())?;
Ok::<_, OpError>(json!({
"url": file.url.to_string(),
"filename": file.filename.to_str().unwrap(),
"mediaType": file.media_type as i32,
"sourceCode": source_code,
}))
}
});
let v = try_join_all(v).await?;
Ok(v.into())
}
.boxed_local();
Ok(JsonOp::Async(future))
}