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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use crate::isolate::Buf;
use crate::isolate::IsolateState;
use crate::isolate_init;
use crate::msg;
use crate::permissions::DenoPermissions;
use crate::resources;
use crate::resources::Resource;
use crate::resources::ResourceId;
use crate::workers;
use futures::Future;
use serde_json;
use std::str;
use std::sync::atomic::AtomicBool;
use std::sync::Arc;
use std::sync::Mutex;
lazy_static! {
static ref C_RID: Mutex<Option<ResourceId>> = Mutex::new(None);
}
// This corresponds to JS ModuleMetaData.
// TODO Rename one or the other so they correspond.
#[derive(Debug)]
pub struct ModuleMetaData {
pub module_name: String,
pub filename: String,
pub media_type: msg::MediaType,
pub source_code: Vec<u8>,
pub maybe_output_code_filename: Option<String>,
pub maybe_output_code: Option<Vec<u8>>,
pub maybe_source_map_filename: Option<String>,
pub maybe_source_map: Option<Vec<u8>>,
}
impl ModuleMetaData {
pub fn js_source(&self) -> String {
if self.media_type == msg::MediaType::Json {
return format!(
"export default {};",
str::from_utf8(&self.source_code).unwrap()
);
}
match self.maybe_output_code {
None => str::from_utf8(&self.source_code).unwrap().to_string(),
Some(ref output_code) => str::from_utf8(output_code).unwrap().to_string(),
}
}
}
fn lazy_start(parent_state: &Arc<IsolateState>) -> Resource {
let mut cell = C_RID.lock().unwrap();
let isolate_init = isolate_init::compiler_isolate_init();
let permissions = DenoPermissions {
allow_read: AtomicBool::new(true),
allow_write: AtomicBool::new(true),
allow_env: AtomicBool::new(false),
allow_net: AtomicBool::new(true),
allow_run: AtomicBool::new(false),
..Default::default()
};
let rid = cell.get_or_insert_with(|| {
let resource = workers::spawn(
isolate_init,
parent_state.clone(),
"compilerMain()".to_string(),
permissions,
);
resource.rid
});
Resource { rid: *rid }
}
fn req(specifier: &str, referrer: &str) -> Buf {
json!({
"specifier": specifier,
"referrer": referrer,
}).to_string()
.into_boxed_str()
.into_boxed_bytes()
}
pub fn compile_sync(
parent_state: &Arc<IsolateState>,
specifier: &str,
referrer: &str,
module_meta_data: &ModuleMetaData,
) -> ModuleMetaData {
let req_msg = req(specifier, referrer);
let compiler = lazy_start(parent_state);
let send_future = resources::worker_post_message(compiler.rid, req_msg);
send_future.wait().unwrap();
let recv_future = resources::worker_recv_message(compiler.rid);
let res_msg = recv_future.wait().unwrap().unwrap();
let res_json = std::str::from_utf8(&res_msg).unwrap();
match serde_json::from_str::<serde_json::Value>(res_json) {
Ok(serde_json::Value::Object(map)) => ModuleMetaData {
module_name: module_meta_data.module_name.clone(),
filename: module_meta_data.filename.clone(),
media_type: module_meta_data.media_type,
source_code: module_meta_data.source_code.clone(),
maybe_output_code: match map["outputCode"].as_str() {
Some(str) => Some(str.as_bytes().to_owned()),
_ => None,
},
maybe_output_code_filename: None,
maybe_source_map: match map["sourceMap"].as_str() {
Some(str) => Some(str.as_bytes().to_owned()),
_ => None,
},
maybe_source_map_filename: None,
},
_ => panic!("error decoding compiler response"),
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_compile_sync() {
let cwd = std::env::current_dir().unwrap();
let cwd_string = cwd.to_str().unwrap().to_owned();
let specifier = "./tests/002_hello.ts";
let referrer = cwd_string + "/";
let mut out = ModuleMetaData {
module_name: "xxx".to_owned(),
filename: "/tests/002_hello.ts".to_owned(),
media_type: msg::MediaType::TypeScript,
source_code: "console.log(\"Hello World\");".as_bytes().to_owned(),
maybe_output_code_filename: None,
maybe_output_code: None,
maybe_source_map_filename: None,
maybe_source_map: None,
};
out = compile_sync(&IsolateState::mock(), specifier, &referrer, &mut out);
assert!(
out
.maybe_output_code
.unwrap()
.starts_with("console.log(\"Hello World\");".as_bytes())
);
}
}
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