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denoland-deno/runtime/examples/hello_runtime.rs
Nayeem Rahman 8b31fc23cd
refactor: Move source map lookups to core (#14274)
The following transformations gradually faced by "JsError" have all been 
moved up front to "JsError::from_v8_exception()": 

- finding the first non-"deno:" source line; 
- moving "JsError::script_resource_name" etc. into the first error stack 
in case of syntax errors; 
- source mapping "JsError::script_resource_name" etc. when wrapping 
the error even though the frame locations are source mapped earlier; 
- removing "JsError::{script_resource_name,line_number,start_column,end_column}"
entirely in favour of "js_error.frames.get(0)". 

We also no longer pass a js-side callback to "core/02_error.js" from cli. 
I avoided doing this on previous occasions because the source map lookups 
were in an awkward place.
2022-04-15 16:08:09 +02:00

75 lines
2.3 KiB
Rust

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use deno_core::error::AnyError;
use deno_core::FsModuleLoader;
use deno_runtime::deno_broadcast_channel::InMemoryBroadcastChannel;
use deno_runtime::deno_web::BlobStore;
use deno_runtime::permissions::Permissions;
use deno_runtime::worker::MainWorker;
use deno_runtime::worker::WorkerOptions;
use deno_runtime::BootstrapOptions;
use std::path::Path;
use std::rc::Rc;
use std::sync::Arc;
fn get_error_class_name(e: &AnyError) -> &'static str {
deno_runtime::errors::get_error_class_name(e).unwrap_or("Error")
}
#[tokio::main]
async fn main() -> Result<(), AnyError> {
let module_loader = Rc::new(FsModuleLoader);
let create_web_worker_cb = Arc::new(|_| {
todo!("Web workers are not supported in the example");
});
let web_worker_preload_module_cb = Arc::new(|_| {
todo!("Web workers are not supported in the example");
});
let options = WorkerOptions {
bootstrap: BootstrapOptions {
args: vec![],
cpu_count: 1,
debug_flag: false,
enable_testing_features: false,
location: None,
no_color: false,
is_tty: false,
runtime_version: "x".to_string(),
ts_version: "x".to_string(),
unstable: false,
},
extensions: vec![],
unsafely_ignore_certificate_errors: None,
root_cert_store: None,
user_agent: "hello_runtime".to_string(),
seed: None,
source_map_getter: None,
js_error_create_fn: None,
web_worker_preload_module_cb,
create_web_worker_cb,
maybe_inspector_server: None,
should_break_on_first_statement: false,
module_loader,
get_error_class_fn: Some(&get_error_class_name),
origin_storage_dir: None,
blob_store: BlobStore::default(),
broadcast_channel: InMemoryBroadcastChannel::default(),
shared_array_buffer_store: None,
compiled_wasm_module_store: None,
};
let js_path =
Path::new(env!("CARGO_MANIFEST_DIR")).join("examples/hello_runtime.js");
let main_module = deno_core::resolve_path(&js_path.to_string_lossy())?;
let permissions = Permissions::allow_all();
let mut worker = MainWorker::bootstrap_from_options(
main_module.clone(),
permissions,
options,
);
worker.execute_main_module(&main_module).await?;
worker.run_event_loop(false).await?;
Ok(())
}