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denoland-deno/runtime/shared.rs
Nayeem Rahman bd034e360d
refactor(runtime): factor out code between build.rs and worker.rs (#20299)
Adds `runtime/shared.rs` which is imported by both `build.rs` and the
rest of the crate, containing utilities used by both.
Renames the `snapshot_from_snapshot` feature to
`exclude_runtime_main_js` since that's what it does and it's relevant
outside of snapshotting when `__runtime_js_sources` is specified.
2023-08-28 15:30:46 -06:00

107 lines
2.7 KiB
Rust

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
// Utilities shared between `build.rs` and the rest of the crate.
use deno_ast::MediaType;
use deno_ast::ParseParams;
use deno_ast::SourceTextInfo;
use deno_core::error::AnyError;
use deno_core::extension;
use deno_core::Extension;
use deno_core::ExtensionFileSource;
use deno_core::ExtensionFileSourceCode;
use std::path::Path;
extension!(runtime,
deps = [
deno_webidl,
deno_console,
deno_url,
deno_tls,
deno_web,
deno_fetch,
deno_cache,
deno_websocket,
deno_webstorage,
deno_crypto,
deno_broadcast_channel,
deno_node,
deno_ffi,
deno_net,
deno_napi,
deno_http,
deno_io,
deno_fs
],
esm_entry_point = "ext:runtime/90_deno_ns.js",
esm = [
dir "js",
"01_errors.js",
"01_version.ts",
"06_util.js",
"10_permissions.js",
"11_workers.js",
"13_buffer.js",
"30_os.js",
"40_fs_events.js",
"40_http.js",
"40_process.js",
"40_signals.js",
"40_tty.js",
"41_prompt.js",
"90_deno_ns.js",
"98_global_scope.js"
],
customizer = |ext: &mut Extension| {
#[cfg(not(feature = "exclude_runtime_main_js"))]
{
ext.esm_files.to_mut().push(ExtensionFileSource {
specifier: "ext:runtime_main/js/99_main.js",
code: ExtensionFileSourceCode::IncludedInBinary(
include_str!("./js/99_main.js"),
),
});
ext.esm_entry_point = Some("ext:runtime_main/js/99_main.js");
}
}
);
#[allow(dead_code)]
pub fn maybe_transpile_source(
source: &mut ExtensionFileSource,
) -> Result<(), AnyError> {
// Always transpile `node:` built-in modules, since they might be TypeScript.
let media_type = if source.specifier.starts_with("node:") {
MediaType::TypeScript
} else {
MediaType::from_path(Path::new(&source.specifier))
};
match media_type {
MediaType::TypeScript => {}
MediaType::JavaScript => return Ok(()),
MediaType::Mjs => return Ok(()),
_ => panic!(
"Unsupported media type for snapshotting {media_type:?} for file {}",
source.specifier
),
}
let code = source.load()?;
let parsed = deno_ast::parse_module(ParseParams {
specifier: source.specifier.to_string(),
text_info: SourceTextInfo::from_string(code.as_str().to_owned()),
media_type,
capture_tokens: false,
scope_analysis: false,
maybe_syntax: None,
})?;
let transpiled_source = parsed.transpile(&deno_ast::EmitOptions {
imports_not_used_as_values: deno_ast::ImportsNotUsedAsValues::Remove,
inline_source_map: false,
..Default::default()
})?;
source.code =
ExtensionFileSourceCode::Computed(transpiled_source.text.into());
Ok(())
}