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denoland-deno/runtime/examples/extension_with_ops/main.rs
Nayeem Rahman cd61c01545
refactor(core): cleanup feature flags for js source inclusion (#19463)
Remove `ExtensionFileSourceCode::LoadedFromFsDuringSnapshot` and feature
`include_js_for_snapshotting` since they leak paths that are only
applicable in this repo to embedders. Replace with feature
`exclude_js_sources`. Additionally the feature
`force_include_js_sources` allows negating it, if both features are set.
We need both of these because features are additive and there must be a
way of force including sources for snapshot creation while still having
the `exclude_js_sources` feature. `force_include_js_sources` is only set
for build deps, so sources are still excluded from the final binary.

You can also specify `force_include_js_sources` on any extension to
override the above features for that extension. Towards #19398.

But there was still the snapshot-from-snapshot situation where code
could be executed twice, I addressed that by making `mod_evaluate()` and
scripts like `core/01_core.js` behave idempotently. This allowed
unifying `ext::init_ops()` and `ext::init_ops_and_esm()` into
`ext::init()`.
2023-06-15 22:50:36 +02:00

38 lines
1.1 KiB
Rust

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use std::path::Path;
use std::rc::Rc;
use deno_core::error::AnyError;
use deno_core::op;
use deno_core::FsModuleLoader;
use deno_core::ModuleSpecifier;
use deno_runtime::permissions::PermissionsContainer;
use deno_runtime::worker::MainWorker;
use deno_runtime::worker::WorkerOptions;
deno_core::extension!(hello_runtime, ops = [op_hello]);
#[op]
fn op_hello(text: &str) {
println!("Hello {}!", text);
}
#[tokio::main]
async fn main() -> Result<(), AnyError> {
let js_path = Path::new(env!("CARGO_MANIFEST_DIR"))
.join("examples/extension_with_ops/main.js");
let main_module = ModuleSpecifier::from_file_path(js_path).unwrap();
let mut worker = MainWorker::bootstrap_from_options(
main_module.clone(),
PermissionsContainer::allow_all(),
WorkerOptions {
module_loader: Rc::new(FsModuleLoader),
extensions: vec![hello_runtime::init()],
..Default::default()
},
);
worker.execute_main_module(&main_module).await?;
worker.run_event_loop(false).await?;
Ok(())
}