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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use super::dispatch_json::{Deserialize, JsonOp, Value};
use crate::futures::future::try_join_all;
use crate::futures::future::FutureExt;
use crate::futures::future::TryFutureExt;
use crate::msg;
use crate::ops::json_op;
use crate::state::ThreadSafeState;
use deno::Loader;
use deno::*;
pub fn init(i: &mut Isolate, s: &ThreadSafeState) {
i.register_op("cache", s.core_op(json_op(s.stateful_op(op_cache))));
i.register_op(
"fetch_source_files",
s.core_op(json_op(s.stateful_op(op_fetch_source_files))),
);
i.register_op(
"fetch_asset",
s.core_op(json_op(s.stateful_op(op_fetch_asset))),
);
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct CacheArgs {
module_id: String,
contents: String,
extension: String,
}
fn op_cache(
state: &ThreadSafeState,
args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
let args: CacheArgs = serde_json::from_value(args)?;
let module_specifier = ModuleSpecifier::resolve_url(&args.module_id)
.expect("Should be valid module specifier");
state.global_state.ts_compiler.cache_compiler_output(
&module_specifier,
&args.extension,
&args.contents,
)?;
Ok(JsonOp::Sync(json!({})))
}
#[derive(Deserialize)]
struct FetchSourceFilesArgs {
specifiers: Vec<String>,
referrer: Option<String>,
}
fn op_fetch_source_files(
state: &ThreadSafeState,
args: Value,
_data: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
let args: FetchSourceFilesArgs = serde_json::from_value(args)?;
// TODO(ry) Maybe a security hole. Only the compiler worker should have access
// to this. Need a test to demonstrate the hole.
let is_dyn_import = false;
let (referrer, ref_specifier) = if let Some(referrer) = args.referrer {
let specifier = ModuleSpecifier::resolve_url(&referrer)
.expect("Referrer is not a valid specifier");
(referrer, Some(specifier))
} else {
// main script import
(".".to_string(), None)
};
let mut futures = vec![];
for specifier in &args.specifiers {
let resolved_specifier =
state.resolve(specifier, &referrer, false, is_dyn_import)?;
let fut = state
.global_state
.file_fetcher
.fetch_source_file_async(&resolved_specifier, ref_specifier.clone());
futures.push(fut);
}
let global_state = state.global_state.clone();
let future = try_join_all(futures)
.map_err(ErrBox::from)
.and_then(move |files| {
// We want to get an array of futures that resolves to
let v: Vec<_> = files
.into_iter()
.map(|file| {
// Special handling of Wasm files:
// compile them into JS first!
// This allows TS to do correct export types.
if file.media_type == msg::MediaType::Wasm {
return futures::future::Either::Left(
global_state
.wasm_compiler
.compile_async(global_state.clone(), &file)
.and_then(|compiled_mod| {
futures::future::ok((file, Some(compiled_mod.code)))
}),
);
}
futures::future::Either::Right(futures::future::ok((file, None)))
})
.collect();
try_join_all(v)
})
.and_then(move |files_with_code| {
let res = files_with_code
.into_iter()
.map(|(file, maybe_code)| {
json!({
"url": file.url.to_string(),
"filename": file.filename.to_str().unwrap(),
"mediaType": file.media_type as i32,
"sourceCode": if let Some(code) = maybe_code {
code
} else {
String::from_utf8(file.source_code).unwrap()
},
})
})
.collect();
futures::future::ok(res)
});
Ok(JsonOp::Async(future.boxed()))
}
#[derive(Deserialize)]
struct FetchAssetArgs {
name: String,
}
fn op_fetch_asset(
_state: &ThreadSafeState,
args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
let args: FetchAssetArgs = serde_json::from_value(args)?;
if let Some(source_code) = crate::js::get_asset(&args.name) {
Ok(JsonOp::Sync(json!(source_code)))
} else {
panic!("op_fetch_asset bad asset {}", args.name)
}
}
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