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118 lines
3 KiB
Rust
118 lines
3 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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// Utilities shared between `build.rs` and the rest of the crate.
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use deno_ast::MediaType;
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use deno_ast::ParseParams;
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use deno_ast::SourceMapOption;
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use deno_core::error::AnyError;
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use deno_core::extension;
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use deno_core::Extension;
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use deno_core::ModuleCodeString;
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use deno_core::ModuleName;
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use deno_core::SourceMapData;
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use std::path::Path;
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extension!(runtime,
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deps = [
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deno_webidl,
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deno_console,
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deno_url,
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deno_tls,
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deno_web,
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deno_fetch,
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deno_cache,
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deno_websocket,
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deno_webstorage,
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deno_crypto,
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deno_broadcast_channel,
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deno_node,
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deno_ffi,
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deno_net,
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deno_napi,
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deno_http,
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deno_io,
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deno_fs
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],
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esm_entry_point = "ext:runtime/90_deno_ns.js",
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esm = [
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dir "js",
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"01_errors.js",
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"01_version.ts",
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"06_util.js",
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"10_permissions.js",
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"11_workers.js",
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"13_buffer.js",
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"30_os.js",
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"40_fs_events.js",
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"40_process.js",
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"40_signals.js",
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"40_tty.js",
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"41_prompt.js",
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"90_deno_ns.js",
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"98_global_scope_shared.js",
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"98_global_scope_window.js",
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"98_global_scope_worker.js"
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],
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customizer = |ext: &mut Extension| {
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#[cfg(not(feature = "exclude_runtime_main_js"))]
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{
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use deno_core::ascii_str_include;
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use deno_core::ExtensionFileSource;
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ext.esm_files.to_mut().push(ExtensionFileSource::new("ext:runtime_main/js/99_main.js", ascii_str_include!("./js/99_main.js")));
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ext.esm_entry_point = Some("ext:runtime_main/js/99_main.js");
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}
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}
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);
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pub fn maybe_transpile_source(
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name: ModuleName,
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source: ModuleCodeString,
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) -> Result<(ModuleCodeString, Option<SourceMapData>), AnyError> {
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// Always transpile `node:` built-in modules, since they might be TypeScript.
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let media_type = if name.starts_with("node:") {
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MediaType::TypeScript
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} else {
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MediaType::from_path(Path::new(&name))
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};
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match media_type {
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MediaType::TypeScript => {}
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MediaType::JavaScript => return Ok((source, None)),
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MediaType::Mjs => return Ok((source, None)),
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_ => panic!(
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"Unsupported media type for snapshotting {media_type:?} for file {}",
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name
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),
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}
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let parsed = deno_ast::parse_module(ParseParams {
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specifier: deno_core::url::Url::parse(&name).unwrap(),
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text: source.into(),
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media_type,
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capture_tokens: false,
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scope_analysis: false,
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maybe_syntax: None,
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})?;
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let transpiled_source = parsed
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.transpile(
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&deno_ast::TranspileOptions {
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imports_not_used_as_values: deno_ast::ImportsNotUsedAsValues::Remove,
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..Default::default()
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},
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&deno_ast::EmitOptions {
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source_map: if cfg!(debug_assertions) {
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SourceMapOption::Separate
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} else {
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SourceMapOption::None
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},
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..Default::default()
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},
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)?
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.into_source();
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let maybe_source_map: Option<SourceMapData> =
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transpiled_source.source_map.map(|sm| sm.into());
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let source_text = String::from_utf8(transpiled_source.source)?;
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Ok((source_text.into(), maybe_source_map))
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}
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