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deno/cli/tsc/mod.rs
Nathan Whitaker b252cc78c2
feat(unstable): typescript-go integration for deno check (#30920) 
Integrated only with deno check (and test, `run --check`, etc)
currently. All spec tests for deno check pass except for 3, which i've
disabled

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: Divy Srivastava <me@littledivy.com>
2025-10-20 09:59:54 -07:00

1329 lines
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// Copyright 2018-2025 the Deno authors. MIT license.
//
mod go;
mod js;
use std::collections::HashMap;
use std::collections::HashSet;
use std::fmt;
use std::io::ErrorKind;
use std::path::Path;
use std::path::PathBuf;
use std::sync::Arc;
use std::sync::LazyLock;
use std::sync::OnceLock;
use deno_ast::MediaType;
use deno_core::ModuleSpecifier;
use deno_core::serde::Deserialize;
use deno_core::serde::Deserializer;
use deno_core::serde::Serialize;
use deno_core::serde::Serializer;
use deno_core::url::Url;
use deno_graph::Module;
use deno_graph::ModuleGraph;
use deno_lib::util::checksum;
use deno_lib::util::hash::FastInsecureHasher;
use deno_resolver::npm::ResolvePkgFolderFromDenoReqError;
use deno_resolver::npm::managed::ResolvePkgFolderFromDenoModuleError;
use deno_semver::npm::NpmPackageReqReference;
use indexmap::IndexMap;
use node_resolver::NodeResolutionKind;
use node_resolver::ResolutionMode;
use node_resolver::errors::NodeJsErrorCode;
use node_resolver::errors::NodeJsErrorCoded;
use node_resolver::errors::PackageSubpathFromDenoModuleResolveError;
use node_resolver::resolve_specifier_into_node_modules;
use once_cell::sync::Lazy;
use thiserror::Error;
use crate::args::CompilerOptions;
use crate::args::TypeCheckMode;
use crate::cache::ModuleInfoCache;
use crate::node::CliNodeResolver;
use crate::node::CliPackageJsonResolver;
use crate::npm::CliNpmResolver;
use crate::resolver::CliCjsTracker;
use crate::sys::CliSys;
use crate::util::path::mapped_specifier_for_tsc;
mod diagnostics;
pub use self::diagnostics::Diagnostic;
pub use self::diagnostics::DiagnosticCategory;
pub use self::diagnostics::Diagnostics;
pub use self::diagnostics::Position;
pub use self::go::ensure_tsgo;
pub use self::js::TscConstants;
pub fn get_types_declaration_file_text() -> String {
let lib_names = vec![
"deno.ns",
"deno.console",
"deno.url",
"deno.web",
"deno.fetch",
"deno.webgpu",
"deno.websocket",
"deno.webstorage",
"deno.canvas",
"deno.crypto",
"deno.broadcast_channel",
"deno.net",
"deno.shared_globals",
"deno.cache",
"deno.window",
"deno.unstable",
];
lib_names
.into_iter()
.map(|name| {
let lib_name = format!("lib.{name}.d.ts");
LAZILY_LOADED_STATIC_ASSETS
.get(lib_name.as_str())
.unwrap()
.source
.as_str()
})
.collect::<Vec<_>>()
.join("\n")
}
macro_rules! maybe_compressed_source {
($file: expr) => {{ maybe_compressed_source!(compressed = $file, uncompressed = $file) }};
(compressed = $comp: expr, uncompressed = $uncomp: expr) => {{
#[cfg(feature = "hmr")]
{
StaticAssetSource::Owned(
concat!(env!("CARGO_MANIFEST_DIR"), "/", $uncomp),
std::sync::OnceLock::new(),
)
}
#[cfg(not(feature = "hmr"))]
{
#[cfg(debug_assertions)]
{
StaticAssetSource::Uncompressed(include_str!(concat!(
env!("CARGO_MANIFEST_DIR"),
"/",
$uncomp
)))
}
#[cfg(not(debug_assertions))]
{
StaticAssetSource::Compressed(CompressedSource::new(include_bytes!(
concat!(env!("OUT_DIR"), "/", $comp, ".zstd")
)))
}
}
}};
}
macro_rules! maybe_compressed_lib {
($name: expr, $file: expr) => {
(
$name,
StaticAsset {
is_lib: true,
source: maybe_compressed_source!(concat!("tsc/dts/", $file)),
},
)
};
($e: expr) => {
maybe_compressed_lib!($e, $e)
};
}
#[derive(Clone)]
pub enum StaticAssetSource {
#[cfg_attr(any(debug_assertions, feature = "hmr"), allow(dead_code))]
Compressed(CompressedSource),
Uncompressed(&'static str),
#[cfg_attr(not(feature = "hmr"), allow(dead_code))]
Owned(&'static str, std::sync::OnceLock<Arc<str>>),
}
impl StaticAssetSource {
pub fn as_str(&'static self) -> &'static str {
match self {
StaticAssetSource::Compressed(compressed_source) => {
compressed_source.get()
}
StaticAssetSource::Uncompressed(src) => src,
StaticAssetSource::Owned(path, cell) => {
let str =
cell.get_or_init(|| std::fs::read_to_string(path).unwrap().into());
str.as_ref()
}
}
}
}
pub struct StaticAsset {
pub is_lib: bool,
pub source: StaticAssetSource,
}
/// Contains static assets that are not preloaded in the compiler snapshot.
///
/// We lazily load these because putting them in the compiler snapshot will
/// increase memory usage when not used (last time checked by about 0.5MB).
pub static LAZILY_LOADED_STATIC_ASSETS: Lazy<
IndexMap<&'static str, StaticAsset>,
> = Lazy::new(|| {
IndexMap::from([
// compressed in build.rs
maybe_compressed_lib!("lib.deno.console.d.ts", "lib.deno_console.d.ts"),
maybe_compressed_lib!("lib.deno.url.d.ts", "lib.deno_url.d.ts"),
maybe_compressed_lib!("lib.deno.web.d.ts", "lib.deno_web.d.ts"),
maybe_compressed_lib!("lib.deno.fetch.d.ts", "lib.deno_fetch.d.ts"),
maybe_compressed_lib!("lib.deno.websocket.d.ts", "lib.deno_websocket.d.ts"),
maybe_compressed_lib!(
"lib.deno.webstorage.d.ts",
"lib.deno_webstorage.d.ts"
),
maybe_compressed_lib!("lib.deno.canvas.d.ts", "lib.deno_canvas.d.ts"),
maybe_compressed_lib!("lib.deno.crypto.d.ts", "lib.deno_crypto.d.ts"),
maybe_compressed_lib!(
"lib.deno.broadcast_channel.d.ts",
"lib.deno_broadcast_channel.d.ts"
),
maybe_compressed_lib!("lib.deno.net.d.ts", "lib.deno_net.d.ts"),
maybe_compressed_lib!("lib.deno.cache.d.ts", "lib.deno_cache.d.ts"),
maybe_compressed_lib!("lib.deno.webgpu.d.ts", "lib.deno_webgpu.d.ts"),
maybe_compressed_lib!("lib.deno.window.d.ts"),
maybe_compressed_lib!("lib.deno.worker.d.ts"),
maybe_compressed_lib!("lib.deno.shared_globals.d.ts"),
maybe_compressed_lib!("lib.deno.ns.d.ts"),
maybe_compressed_lib!("lib.deno.unstable.d.ts"),
maybe_compressed_lib!("lib.decorators.d.ts"),
maybe_compressed_lib!("lib.decorators.legacy.d.ts"),
maybe_compressed_lib!("lib.dom.asynciterable.d.ts"),
maybe_compressed_lib!("lib.dom.d.ts"),
maybe_compressed_lib!("lib.dom.extras.d.ts"),
maybe_compressed_lib!("lib.dom.iterable.d.ts"),
maybe_compressed_lib!("lib.es2015.collection.d.ts"),
maybe_compressed_lib!("lib.es2015.core.d.ts"),
maybe_compressed_lib!("lib.es2015.d.ts"),
maybe_compressed_lib!("lib.es2015.generator.d.ts"),
maybe_compressed_lib!("lib.es2015.iterable.d.ts"),
maybe_compressed_lib!("lib.es2015.promise.d.ts"),
maybe_compressed_lib!("lib.es2015.proxy.d.ts"),
maybe_compressed_lib!("lib.es2015.reflect.d.ts"),
maybe_compressed_lib!("lib.es2015.symbol.d.ts"),
maybe_compressed_lib!("lib.es2015.symbol.wellknown.d.ts"),
maybe_compressed_lib!("lib.es2016.array.include.d.ts"),
maybe_compressed_lib!("lib.es2016.d.ts"),
maybe_compressed_lib!("lib.es2016.full.d.ts"),
maybe_compressed_lib!("lib.es2016.intl.d.ts"),
maybe_compressed_lib!("lib.es2017.arraybuffer.d.ts"),
maybe_compressed_lib!("lib.es2017.d.ts"),
maybe_compressed_lib!("lib.es2017.date.d.ts"),
maybe_compressed_lib!("lib.es2017.full.d.ts"),
maybe_compressed_lib!("lib.es2017.intl.d.ts"),
maybe_compressed_lib!("lib.es2017.object.d.ts"),
maybe_compressed_lib!("lib.es2017.sharedmemory.d.ts"),
maybe_compressed_lib!("lib.es2017.string.d.ts"),
maybe_compressed_lib!("lib.es2017.typedarrays.d.ts"),
maybe_compressed_lib!("lib.es2018.asyncgenerator.d.ts"),
maybe_compressed_lib!("lib.es2018.asynciterable.d.ts"),
maybe_compressed_lib!("lib.es2018.d.ts"),
maybe_compressed_lib!("lib.es2018.full.d.ts"),
maybe_compressed_lib!("lib.es2018.intl.d.ts"),
maybe_compressed_lib!("lib.es2018.promise.d.ts"),
maybe_compressed_lib!("lib.es2018.regexp.d.ts"),
maybe_compressed_lib!("lib.es2019.array.d.ts"),
maybe_compressed_lib!("lib.es2019.d.ts"),
maybe_compressed_lib!("lib.es2019.full.d.ts"),
maybe_compressed_lib!("lib.es2019.intl.d.ts"),
maybe_compressed_lib!("lib.es2019.object.d.ts"),
maybe_compressed_lib!("lib.es2019.string.d.ts"),
maybe_compressed_lib!("lib.es2019.symbol.d.ts"),
maybe_compressed_lib!("lib.es2020.bigint.d.ts"),
maybe_compressed_lib!("lib.es2020.d.ts"),
maybe_compressed_lib!("lib.es2020.date.d.ts"),
maybe_compressed_lib!("lib.es2020.full.d.ts"),
maybe_compressed_lib!("lib.es2020.intl.d.ts"),
maybe_compressed_lib!("lib.es2020.number.d.ts"),
maybe_compressed_lib!("lib.es2020.promise.d.ts"),
maybe_compressed_lib!("lib.es2020.sharedmemory.d.ts"),
maybe_compressed_lib!("lib.es2020.string.d.ts"),
maybe_compressed_lib!("lib.es2020.symbol.wellknown.d.ts"),
maybe_compressed_lib!("lib.es2021.d.ts"),
maybe_compressed_lib!("lib.es2021.full.d.ts"),
maybe_compressed_lib!("lib.es2021.intl.d.ts"),
maybe_compressed_lib!("lib.es2021.promise.d.ts"),
maybe_compressed_lib!("lib.es2021.string.d.ts"),
maybe_compressed_lib!("lib.es2021.weakref.d.ts"),
maybe_compressed_lib!("lib.es2022.array.d.ts"),
maybe_compressed_lib!("lib.es2022.d.ts"),
maybe_compressed_lib!("lib.es2022.error.d.ts"),
maybe_compressed_lib!("lib.es2022.full.d.ts"),
maybe_compressed_lib!("lib.es2022.intl.d.ts"),
maybe_compressed_lib!("lib.es2022.object.d.ts"),
maybe_compressed_lib!("lib.es2022.regexp.d.ts"),
maybe_compressed_lib!("lib.es2022.string.d.ts"),
maybe_compressed_lib!("lib.es2023.array.d.ts"),
maybe_compressed_lib!("lib.es2023.collection.d.ts"),
maybe_compressed_lib!("lib.es2023.d.ts"),
maybe_compressed_lib!("lib.es2023.full.d.ts"),
maybe_compressed_lib!("lib.es2023.intl.d.ts"),
maybe_compressed_lib!("lib.es2024.arraybuffer.d.ts"),
maybe_compressed_lib!("lib.es2024.collection.d.ts"),
maybe_compressed_lib!("lib.es2024.d.ts"),
maybe_compressed_lib!("lib.es2024.full.d.ts"),
maybe_compressed_lib!("lib.es2024.object.d.ts"),
maybe_compressed_lib!("lib.es2024.promise.d.ts"),
maybe_compressed_lib!("lib.es2024.regexp.d.ts"),
maybe_compressed_lib!("lib.es2024.sharedmemory.d.ts"),
maybe_compressed_lib!("lib.es2024.string.d.ts"),
maybe_compressed_lib!("lib.es5.d.ts"),
maybe_compressed_lib!("lib.es6.d.ts"),
maybe_compressed_lib!("lib.esnext.array.d.ts"),
maybe_compressed_lib!("lib.esnext.collection.d.ts"),
maybe_compressed_lib!("lib.esnext.d.ts"),
maybe_compressed_lib!("lib.esnext.decorators.d.ts"),
maybe_compressed_lib!("lib.esnext.disposable.d.ts"),
maybe_compressed_lib!("lib.esnext.error.d.ts"),
maybe_compressed_lib!("lib.esnext.float16.d.ts"),
maybe_compressed_lib!("lib.esnext.full.d.ts"),
maybe_compressed_lib!("lib.esnext.intl.d.ts"),
maybe_compressed_lib!("lib.esnext.iterator.d.ts"),
maybe_compressed_lib!("lib.esnext.promise.d.ts"),
maybe_compressed_lib!("lib.esnext.sharedmemory.d.ts"),
maybe_compressed_lib!("lib.scripthost.d.ts"),
maybe_compressed_lib!("lib.webworker.asynciterable.d.ts"),
maybe_compressed_lib!("lib.webworker.d.ts"),
maybe_compressed_lib!("lib.webworker.importscripts.d.ts"),
maybe_compressed_lib!("lib.webworker.iterable.d.ts"),
(
// Special file that can be used to inject the @types/node package.
// This is used for `node:` specifiers.
"node_types.d.ts",
StaticAsset {
is_lib: false,
source: StaticAssetSource::Uncompressed(
"/// <reference types=\"npm:@types/node\" />\n",
),
},
),
])
});
/// A structure representing stats from a type check operation for a graph.
#[derive(Clone, Debug, Default, Eq, PartialEq)]
pub struct Stats(pub Vec<(String, u32)>);
impl<'de> Deserialize<'de> for Stats {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
let items: Vec<(String, u32)> = Deserialize::deserialize(deserializer)?;
Ok(Stats(items))
}
}
impl Serialize for Stats {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
Serialize::serialize(&self.0, serializer)
}
}
impl fmt::Display for Stats {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
writeln!(f, "Compilation statistics:")?;
for (key, value) in self.0.clone() {
writeln!(f, " {key}: {value}")?;
}
Ok(())
}
}
/// Retrieve a static asset that are included in the binary.
fn get_lazily_loaded_asset(asset: &str) -> Option<&'static str> {
LAZILY_LOADED_STATIC_ASSETS
.get(asset)
.map(|s| s.source.as_str())
}
fn get_maybe_hash(
maybe_source: Option<&str>,
hash_data: u64,
) -> Option<String> {
maybe_source.map(|source| get_hash(source, hash_data))
}
fn get_hash(source: &str, hash_data: u64) -> String {
FastInsecureHasher::new_without_deno_version()
.write_str(source)
.write_u64(hash_data)
.finish()
.to_string()
}
/// Hash the URL so it can be sent to `tsc` in a supportable way
fn hash_url(specifier: &ModuleSpecifier, media_type: MediaType) -> String {
let hash = checksum::r#gen(&[specifier.path().as_bytes()]);
format!(
"{}:///{}{}",
specifier.scheme(),
hash,
media_type.as_ts_extension()
)
}
#[derive(Debug, Clone, Default, Eq, PartialEq)]
#[allow(dead_code)]
pub struct EmittedFile {
pub data: String,
pub maybe_specifiers: Option<Vec<ModuleSpecifier>>,
pub media_type: MediaType,
}
pub fn into_specifier_and_media_type(
specifier: Option<ModuleSpecifier>,
) -> (ModuleSpecifier, MediaType) {
match specifier {
Some(specifier) => {
let media_type = MediaType::from_specifier(&specifier);
(specifier, media_type)
}
None => (
Url::parse(MISSING_DEPENDENCY_SPECIFIER).unwrap(),
MediaType::Dts,
),
}
}
#[derive(Debug)]
pub struct TypeCheckingCjsTracker {
cjs_tracker: Arc<CliCjsTracker>,
module_info_cache: Arc<ModuleInfoCache>,
}
impl TypeCheckingCjsTracker {
pub fn new(
cjs_tracker: Arc<CliCjsTracker>,
module_info_cache: Arc<ModuleInfoCache>,
) -> Self {
Self {
cjs_tracker,
module_info_cache,
}
}
pub fn is_cjs(
&self,
specifier: &ModuleSpecifier,
media_type: MediaType,
code: &Arc<str>,
) -> bool {
let maybe_is_script = self
.module_info_cache
.as_module_analyzer()
.analyze_sync(specifier, media_type, code)
.ok()
.map(|info| info.is_script);
maybe_is_script
.and_then(|is_script| {
self
.cjs_tracker
.is_cjs_with_known_is_script(specifier, media_type, is_script)
.ok()
})
.unwrap_or_else(|| {
self
.cjs_tracker
.is_maybe_cjs(specifier, media_type)
.unwrap_or(false)
})
}
pub fn is_cjs_with_known_is_script(
&self,
specifier: &ModuleSpecifier,
media_type: MediaType,
is_script: bool,
) -> Result<bool, node_resolver::errors::PackageJsonLoadError> {
self
.cjs_tracker
.is_cjs_with_known_is_script(specifier, media_type, is_script)
}
}
#[derive(Debug)]
pub struct RequestNpmState {
pub cjs_tracker: Arc<TypeCheckingCjsTracker>,
pub node_resolver: Arc<CliNodeResolver>,
pub npm_resolver: CliNpmResolver,
pub package_json_resolver: Arc<CliPackageJsonResolver>,
}
/// A structure representing a request to be sent to the tsc runtime.
#[derive(Debug)]
pub struct Request {
/// The TypeScript compiler options which will be serialized and sent to
/// tsc.
pub config: Arc<CompilerOptions>,
/// Indicates to the tsc runtime if debug logging should occur.
pub debug: bool,
pub graph: Arc<ModuleGraph>,
pub hash_data: u64,
pub maybe_npm: Option<RequestNpmState>,
pub maybe_tsbuildinfo: Option<String>,
/// A vector of strings that represent the root/entry point modules for the
/// program.
pub root_names: Vec<(ModuleSpecifier, MediaType)>,
pub check_mode: TypeCheckMode,
pub initial_cwd: PathBuf,
}
#[derive(Debug, Clone, Eq, PartialEq)]
pub struct Response {
/// Any diagnostics that have been returned from the checker.
pub diagnostics: Diagnostics,
/// If there was any build info associated with the exec request.
pub maybe_tsbuildinfo: Option<String>,
pub ambient_modules: Vec<String>,
/// Statistics from the check.
pub stats: Stats,
}
pub fn as_ts_script_kind(media_type: MediaType) -> i32 {
match media_type {
MediaType::JavaScript => 1,
MediaType::Jsx => 2,
MediaType::Mjs => 1,
MediaType::Cjs => 1,
MediaType::TypeScript => 3,
MediaType::Mts => 3,
MediaType::Cts => 3,
MediaType::Dts => 3,
MediaType::Dmts => 3,
MediaType::Dcts => 3,
MediaType::Tsx => 4,
MediaType::Json => 6,
MediaType::SourceMap
| MediaType::Css
| MediaType::Html
| MediaType::Sql
| MediaType::Wasm
| MediaType::Unknown => 0,
}
}
pub const MISSING_DEPENDENCY_SPECIFIER: &str =
"internal:///missing_dependency.d.ts";
#[derive(Debug, Error, deno_error::JsError)]
pub enum LoadError {
#[class(generic)]
#[error("Unable to load {path}: {error}")]
LoadFromNodeModule { path: String, error: std::io::Error },
#[class(inherit)]
#[error("{0}")]
ResolveUrlOrPathError(#[from] deno_path_util::ResolveUrlOrPathError),
#[class(inherit)]
#[error("Error converting a string module specifier for \"op_resolve\": {0}")]
ModuleResolution(#[from] deno_core::ModuleResolutionError),
#[class(inherit)]
#[error("{0}")]
ClosestPkgJson(#[from] node_resolver::errors::PackageJsonLoadError),
}
pub fn load_raw_import_source(specifier: &Url) -> Option<&'static str> {
let raw_import = get_specifier_raw_import(specifier)?;
let source = match raw_import {
RawImportKind::Bytes => {
"const data: Uint8Array<ArrayBuffer>;\nexport default data;\n"
}
RawImportKind::Text => "export const data: string;\nexport default data;\n",
};
Some(source)
}
enum RawImportKind {
Bytes,
Text,
}
/// We store the raw import kind in the fragment of the Url
/// like `#denoRawImport=text`. This is necessary because
/// TypeScript can't handle different modules at the same
/// specifier.
fn get_specifier_raw_import(specifier: &Url) -> Option<RawImportKind> {
// this is purposefully relaxed about matching in order to keep the
// code less complex. If someone is doing something to cause this to
// incorrectly match then they most likely deserve the bug they sought.
let fragment = specifier.fragment()?;
let key_text = "denoRawImport=";
let raw_import_index = fragment.find(key_text)?;
let remaining = &fragment[raw_import_index + key_text.len()..];
if remaining.starts_with("text") {
Some(RawImportKind::Text)
} else if remaining.starts_with("bytes") {
Some(RawImportKind::Bytes)
} else {
None
}
}
#[derive(Debug, Error, deno_error::JsError)]
pub enum ResolveError {
#[class(inherit)]
#[error("Error converting a string module specifier for \"op_resolve\": {0}")]
ModuleResolution(#[from] deno_core::ModuleResolutionError),
#[class(inherit)]
#[error(transparent)]
FilePathToUrl(#[from] deno_path_util::PathToUrlError),
#[class(inherit)]
#[error("{0}")]
PackageSubpathResolve(PackageSubpathFromDenoModuleResolveError),
#[class(inherit)]
#[error("{0}")]
ResolveUrlOrPathError(#[from] deno_path_util::ResolveUrlOrPathError),
#[class(inherit)]
#[error("{0}")]
ResolvePkgFolderFromDenoModule(#[from] ResolvePkgFolderFromDenoModuleError),
#[class(inherit)]
#[error("{0}")]
ResolveNonGraphSpecifierTypes(#[from] ResolveNonGraphSpecifierTypesError),
}
#[derive(Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct ResolveArgs {
/// The base specifier that the supplied specifier strings should be resolved
/// relative to.
pub base: String,
/// A list of specifiers that should be resolved.
/// (is_cjs: bool, raw_specifier: String)
pub specifiers: Vec<(bool, String)>,
}
fn resolve_graph_specifier_types(
specifier: &ModuleSpecifier,
referrer: &ModuleSpecifier,
resolution_mode: ResolutionMode,
graph: &ModuleGraph,
maybe_npm: Option<&RequestNpmState>,
) -> Result<Option<(ModuleSpecifier, MediaType)>, ResolveError> {
let maybe_module = match graph.try_get(specifier) {
Ok(Some(module)) => Some(module),
Ok(None) => None,
Err(err) => match err.as_kind() {
deno_graph::ModuleErrorKind::UnsupportedMediaType {
specifier,
media_type,
..
} => {
return Ok(Some((specifier.clone(), *media_type)));
}
_ => None,
},
};
// follow the types reference directive, which may be pointing at an npm package
let maybe_module = match maybe_module {
Some(Module::Js(module)) => {
let maybe_types_dep = module
.maybe_types_dependency
.as_ref()
.map(|d| &d.dependency);
match maybe_types_dep.and_then(|d| d.maybe_specifier()) {
Some(specifier) => graph.get(specifier),
_ => maybe_module,
}
}
maybe_module => maybe_module,
};
// now get the types from the resolved module
match maybe_module {
Some(Module::Js(module)) => {
Ok(Some((module.specifier.clone(), module.media_type)))
}
Some(Module::Json(module)) => {
Ok(Some((module.specifier.clone(), module.media_type)))
}
Some(Module::Wasm(module)) => {
Ok(Some((module.specifier.clone(), MediaType::Dmts)))
}
Some(Module::Npm(module)) => {
if let Some(npm) = maybe_npm {
let package_folder = npm
.npm_resolver
.as_managed()
.unwrap() // should never be byonm because it won't create Module::Npm
.resolve_pkg_folder_from_deno_module(module.nv_reference.nv())?;
let res_result =
npm.node_resolver.resolve_package_subpath_from_deno_module(
&package_folder,
module.nv_reference.sub_path(),
Some(referrer),
resolution_mode,
NodeResolutionKind::Types,
);
let maybe_url = match res_result {
Ok(path_or_url) => Some(path_or_url.into_url()?),
Err(err) => match err.code() {
NodeJsErrorCode::ERR_TYPES_NOT_FOUND => {
let reqs = npm
.npm_resolver
.as_managed()
.unwrap()
.resolution()
.package_reqs();
if let Some((_, types_nv)) =
deno_resolver::npm::find_definitely_typed_package(
module.nv_reference.nv(),
reqs.iter().map(|tup| (&tup.0, &tup.1)),
)
{
let package_folder = npm
.npm_resolver
.as_managed()
.unwrap() // should never be byonm because it won't create Module::Npm
.resolve_pkg_folder_from_deno_module(types_nv)?;
let res_result =
npm.node_resolver.resolve_package_subpath_from_deno_module(
&package_folder,
module.nv_reference.sub_path(),
Some(referrer),
resolution_mode,
NodeResolutionKind::Types,
);
if let Ok(res_result) = res_result {
Some(res_result.into_url()?)
} else {
None
}
} else {
None
}
}
NodeJsErrorCode::ERR_MODULE_NOT_FOUND => None,
_ => return Err(ResolveError::PackageSubpathResolve(err)),
},
};
Ok(Some(into_specifier_and_media_type(maybe_url)))
} else {
Ok(None)
}
}
Some(Module::External(module)) => {
// we currently only use "External" for when the module is in an npm package
Ok(maybe_npm.map(|_| {
let specifier = resolve_specifier_into_node_modules(
&CliSys::default(),
&module.specifier,
);
into_specifier_and_media_type(Some(specifier))
}))
}
Some(Module::Node(_)) | None => Ok(None),
}
}
#[derive(Debug, Error, deno_error::JsError)]
pub enum ResolveNonGraphSpecifierTypesError {
#[class(inherit)]
#[error(transparent)]
FilePathToUrl(#[from] deno_path_util::PathToUrlError),
#[class(inherit)]
#[error(transparent)]
ResolvePkgFolderFromDenoReq(#[from] ResolvePkgFolderFromDenoReqError),
#[class(inherit)]
#[error(transparent)]
PackageSubpathResolve(#[from] PackageSubpathFromDenoModuleResolveError),
}
fn resolve_non_graph_specifier_types(
raw_specifier: &str,
referrer: &ModuleSpecifier,
resolution_mode: ResolutionMode,
maybe_npm: Option<&RequestNpmState>,
) -> Result<
Option<(ModuleSpecifier, MediaType)>,
ResolveNonGraphSpecifierTypesError,
> {
let npm = match maybe_npm {
Some(npm) => npm,
None => return Ok(None), // we only support non-graph types for npm packages
};
let node_resolver = &npm.node_resolver;
if node_resolver.in_npm_package(referrer) {
// we're in an npm package, so use node resolution
Ok(Some(into_specifier_and_media_type(
node_resolver
.resolve(
raw_specifier,
referrer,
resolution_mode,
NodeResolutionKind::Types,
)
.and_then(|res| res.into_url())
.ok(),
)))
} else {
match NpmPackageReqReference::from_str(raw_specifier) {
Ok(npm_req_ref) => {
debug_assert_eq!(resolution_mode, ResolutionMode::Import);
// todo(dsherret): add support for injecting this in the graph so
// we don't need this special code here.
// This could occur when resolving npm:@types/node when it is
// injected and not part of the graph
let package_folder =
npm.npm_resolver.resolve_pkg_folder_from_deno_module_req(
npm_req_ref.req(),
referrer,
)?;
let res_result = node_resolver
.resolve_package_subpath_from_deno_module(
&package_folder,
npm_req_ref.sub_path(),
Some(referrer),
resolution_mode,
NodeResolutionKind::Types,
);
let maybe_url = match res_result {
Ok(url_or_path) => Some(url_or_path.into_url()?),
Err(err) => match err.code() {
NodeJsErrorCode::ERR_TYPES_NOT_FOUND
| NodeJsErrorCode::ERR_MODULE_NOT_FOUND => None,
_ => return Err(err.into()),
},
};
Ok(Some(into_specifier_and_media_type(maybe_url)))
}
_ => Ok(None),
}
}
}
#[derive(Debug, Error, deno_error::JsError)]
pub enum ExecError {
#[class(generic)]
#[error("The response for the exec request was not set.")]
ResponseNotSet,
#[class(inherit)]
#[error(transparent)]
Js(Box<deno_core::error::JsError>),
#[class(inherit)]
#[error(transparent)]
Go(#[from] go::ExecError),
}
#[derive(Clone)]
pub(crate) struct CompressedSource {
bytes: &'static [u8],
uncompressed: OnceLock<Arc<str>>,
}
impl CompressedSource {
#[cfg_attr(any(debug_assertions, feature = "hmr"), allow(dead_code))]
pub(crate) const fn new(bytes: &'static [u8]) -> Self {
Self {
bytes,
uncompressed: OnceLock::new(),
}
}
pub(crate) fn get(&self) -> &str {
self
.uncompressed
.get_or_init(|| decompress_source(self.bytes))
.as_ref()
}
}
pub(crate) static MAIN_COMPILER_SOURCE: StaticAssetSource =
maybe_compressed_source!("tsc/99_main_compiler.js");
pub(crate) static LSP_SOURCE: StaticAssetSource =
maybe_compressed_source!("tsc/98_lsp.js");
pub(crate) static TS_HOST_SOURCE: StaticAssetSource =
maybe_compressed_source!("tsc/97_ts_host.js");
pub(crate) static TYPESCRIPT_SOURCE: StaticAssetSource =
maybe_compressed_source!("tsc/00_typescript.js");
pub(crate) fn decompress_source(contents: &[u8]) -> Arc<str> {
let len_bytes = contents[0..4].try_into().unwrap();
let len = u32::from_le_bytes(len_bytes);
let uncompressed =
zstd::bulk::decompress(&contents[4..], len as usize).unwrap();
String::from_utf8(uncompressed).unwrap().into()
}
/// Execute a request on the supplied snapshot, returning a response which
/// contains information, like any emitted files, diagnostics, statistics and
/// optionally an updated TypeScript build info.
#[allow(clippy::result_large_err)]
pub fn exec(
request: Request,
code_cache: Option<Arc<dyn deno_runtime::code_cache::CodeCache>>,
maybe_tsgo_path: Option<&Path>,
) -> Result<Response, ExecError> {
// tsc cannot handle root specifiers that don't have one of the "acceptable"
// extensions. Therefore, we have to check the root modules against their
// extensions and remap any that are unacceptable to tsc and add them to the
// op state so when requested, we can remap to the original specifier.
let mut root_map = HashMap::new();
let mut remapped_specifiers = HashMap::new();
log::debug!("exec request, root_names: {:?}", request.root_names);
let root_names: Vec<String> = request
.root_names
.iter()
.map(|(s, mt)| match s.scheme() {
"data" | "blob" => {
let specifier_str = hash_url(s, *mt);
remapped_specifiers.insert(specifier_str.clone(), s.clone());
specifier_str
}
// "file" if tsgo => {
// let specifier_str = s.to_string();
// let out = specifier_str.strip_prefix("file://").unwrap().to_string();
// remapped_specifiers.insert(out.to_string(), s.clone());
// out
// }
_ => {
if let Some(new_specifier) = mapped_specifier_for_tsc(s, *mt) {
root_map.insert(new_specifier.clone(), s.clone());
new_specifier
} else {
s.to_string()
}
}
})
.collect();
if let Some(tsgo_path) = maybe_tsgo_path {
go::exec_request(
request,
root_names,
root_map,
remapped_specifiers,
tsgo_path,
)
} else {
js::exec_request(
request,
root_names,
root_map,
remapped_specifiers,
code_cache,
)
}
}
pub fn resolve_specifier_for_tsc(
specifier: String,
referrer: &ModuleSpecifier,
graph: &ModuleGraph,
resolution_mode: ResolutionMode,
maybe_npm: Option<&RequestNpmState>,
referrer_module: Option<&Module>,
remapped_specifiers: &mut HashMap<String, ModuleSpecifier>,
) -> Result<(String, Option<&'static str>), ResolveError> {
if specifier.starts_with("node:") {
return Ok((
MISSING_DEPENDENCY_SPECIFIER.to_string(),
Some(MediaType::Dts.as_ts_extension()),
));
}
if specifier.starts_with("asset:///") {
let ext = MediaType::from_str(&specifier).as_ts_extension();
return Ok((specifier, Some(ext)));
}
let resolved_dep = referrer_module
.and_then(|m| match m {
Module::Js(m) => m.dependencies_prefer_fast_check().get(&specifier),
Module::Json(_) => None,
Module::Wasm(m) => m.dependencies.get(&specifier),
Module::Npm(_) | Module::Node(_) | Module::External(_) => None,
})
.and_then(|d| d.maybe_type.ok().or_else(|| d.maybe_code.ok()));
let maybe_result = match resolved_dep {
Some(deno_graph::ResolutionResolved { specifier, .. }) => {
resolve_graph_specifier_types(
specifier,
referrer,
// we could get this from the resolved dep, but for now assume
// the value resolved in TypeScript is better
resolution_mode,
graph,
maybe_npm,
)?
}
_ => {
match resolve_non_graph_specifier_types(
&specifier,
referrer,
resolution_mode,
maybe_npm,
) {
Ok(maybe_result) => maybe_result,
Err(
err
@ ResolveNonGraphSpecifierTypesError::ResolvePkgFolderFromDenoReq(
ResolvePkgFolderFromDenoReqError::Managed(_),
),
) => {
// it's most likely requesting the jsxImportSource, which isn't loaded
// into the graph when not using jsx, so just ignore this error
if specifier.ends_with("/jsx-runtime") {
None
} else {
return Err(err.into());
}
}
Err(err) => return Err(err.into()),
}
}
};
let result = match maybe_result {
Some((specifier, media_type)) => {
let specifier_str = match specifier.scheme() {
"data" | "blob" => {
let specifier_str = hash_url(&specifier, media_type);
remapped_specifiers.insert(specifier_str.clone(), specifier);
specifier_str
}
_ => {
if let Some(specifier_str) =
mapped_specifier_for_tsc(&specifier, media_type)
{
remapped_specifiers.insert(specifier_str.clone(), specifier);
specifier_str
} else {
specifier.to_string()
}
}
};
(
specifier_str,
match media_type {
MediaType::Css => Some(".js"), // surface these as .js for typescript
MediaType::Unknown => None,
media_type => Some(media_type.as_ts_extension()),
},
)
}
None => (
MISSING_DEPENDENCY_SPECIFIER.to_string(),
Some(MediaType::Dts.as_ts_extension()),
),
};
log::debug!("Resolved {} from {} to {:?}", specifier, referrer, result);
Ok(result)
}
pub trait LoadContent: AsRef<str> {
fn from_static(source: &'static str) -> Self;
fn from_string(source: String) -> Self;
fn from_arc_str(source: Arc<str>) -> Self;
}
#[derive(Debug)]
pub struct LoadResponse<T: LoadContent> {
data: T,
version: Option<String>,
is_cjs: bool,
media_type: MediaType,
}
pub trait Mapper {
fn maybe_remapped_specifier(
&self,
specifier: &str,
) -> Option<&ModuleSpecifier>;
}
pub fn load_for_tsc<T: LoadContent, M: Mapper>(
load_specifier: &str,
maybe_npm: Option<&RequestNpmState>,
current_dir: &Path,
graph: &ModuleGraph,
maybe_tsbuildinfo: Option<&str>,
hash_data: u64,
remapper: &M,
) -> Result<Option<LoadResponse<T>>, LoadError> {
fn load_from_node_modules<T: LoadContent>(
specifier: &ModuleSpecifier,
npm_state: Option<&RequestNpmState>,
media_type: &mut MediaType,
is_cjs: &mut bool,
) -> Result<Option<T>, LoadError> {
*media_type = MediaType::from_specifier(specifier);
let file_path = specifier.to_file_path().unwrap();
let code = match std::fs::read_to_string(&file_path) {
Ok(code) => code,
Err(err) if err.kind() == ErrorKind::NotFound => {
return Ok(None);
}
Err(err) => {
return Err(LoadError::LoadFromNodeModule {
path: file_path.display().to_string(),
error: err,
});
}
};
let code: Arc<str> = code.into();
*is_cjs = npm_state
.map(|npm_state| {
npm_state.cjs_tracker.is_cjs(specifier, *media_type, &code)
})
.unwrap_or(false);
Ok(Some(T::from_arc_str(code)))
}
let specifier =
deno_path_util::resolve_url_or_path(load_specifier, current_dir)?;
let mut hash: Option<String> = None;
let mut media_type = MediaType::Unknown;
let mut is_cjs = false;
let data = if load_specifier == "internal:///.tsbuildinfo" {
maybe_tsbuildinfo.map(|s| T::from_string(s.to_string()))
// in certain situations we return a "blank" module to tsc and we need to
// handle the request for that module here.
} else if load_specifier == MISSING_DEPENDENCY_SPECIFIER {
None
} else if let Some(name) = load_specifier.strip_prefix("asset:///") {
let maybe_source = get_lazily_loaded_asset(name);
hash = get_maybe_hash(maybe_source, hash_data);
media_type = MediaType::from_str(load_specifier);
maybe_source.map(T::from_static)
} else if let Some(source) = load_raw_import_source(&specifier) {
return Ok(Some(LoadResponse {
data: T::from_static(source),
version: Some("1".to_string()),
is_cjs: false,
media_type: MediaType::TypeScript,
}));
} else {
let specifier = if let Some(remapped_specifier) =
remapper.maybe_remapped_specifier(load_specifier)
{
remapped_specifier
} else {
&specifier
};
let maybe_module = graph.try_get(specifier).ok().flatten();
let maybe_source = if let Some(module) = maybe_module {
match module {
Module::Js(module) => {
media_type = module.media_type;
if let Some(npm_state) = &maybe_npm {
is_cjs = npm_state.cjs_tracker.is_cjs_with_known_is_script(
specifier,
module.media_type,
module.is_script,
)?;
}
Some(
module
.fast_check_module()
.map(|m| T::from_arc_str(m.source.clone()))
.unwrap_or(T::from_arc_str(module.source.text.clone())),
)
}
Module::Json(module) => {
media_type = MediaType::Json;
Some(T::from_arc_str(module.source.text.clone()))
}
Module::Wasm(module) => {
media_type = MediaType::Dts;
Some(T::from_arc_str(module.source_dts.clone()))
}
Module::Npm(_) | Module::Node(_) => None,
Module::External(module) => {
if module.specifier.scheme() != "file" {
None
} else {
// means it's Deno code importing an npm module
let specifier = resolve_specifier_into_node_modules(
&CliSys::default(),
&module.specifier,
);
load_from_node_modules(
&specifier,
maybe_npm,
&mut media_type,
&mut is_cjs,
)?
}
}
}
} else if let Some(npm) = maybe_npm
.as_ref()
.filter(|npm| npm.node_resolver.in_npm_package(specifier))
{
load_from_node_modules(
specifier,
Some(npm),
&mut media_type,
&mut is_cjs,
)?
} else {
None
};
hash = get_maybe_hash(maybe_source.as_ref().map(|s| s.as_ref()), hash_data);
maybe_source
};
let Some(data) = data else {
return Ok(None);
};
Ok(Some(LoadResponse {
data,
version: hash,
is_cjs,
media_type,
}))
}
pub static IGNORED_DIAGNOSTIC_CODES: LazyLock<HashSet<u64>> =
LazyLock::new(|| {
[
// TS1452: 'resolution-mode' assertions are only supported when `moduleResolution` is `node16` or `nodenext`.
// We specify the resolution mode to be CommonJS for some npm files and this
// diagnostic gets generated even though we're using custom module resolution.
1452,
// Module '...' cannot be imported using this construct. The specifier only resolves to an
// ES module, which cannot be imported with 'require'.
1471,
// TS1479: The current file is a CommonJS module whose imports will produce 'require' calls;
// however, the referenced file is an ECMAScript module and cannot be imported with 'require'.
1479,
// TS1543: Importing a JSON file into an ECMAScript module requires a 'type: \"json\"' import
// attribute when 'module' is set to 'NodeNext'.
1543,
// TS2306: File '.../index.d.ts' is not a module.
// We get this for `x-typescript-types` declaration files which don't export
// anything. We prefer to treat these as modules with no exports.
2306,
// TS2688: Cannot find type definition file for '...'.
// We ignore because type definition files can end with '.ts'.
2688,
// TS2792: Cannot find module. Did you mean to set the 'moduleResolution'
// option to 'node', or to add aliases to the 'paths' option?
2792,
// TS2307: Cannot find module '{0}' or its corresponding type declarations.
2307, // Relative import errors to add an extension
2834, 2835,
// TS5009: Cannot find the common subdirectory path for the input files.
5009,
// TS5055: Cannot write file
// 'http://localhost:4545/subdir/mt_application_x_javascript.j4.js'
// because it would overwrite input file.
5055,
// TypeScript is overly opinionated that only CommonJS modules kinds can
// support JSON imports. Allegedly this was fixed in
// Microsoft/TypeScript#26825 but that doesn't seem to be working here,
// so we will ignore complaints about this compiler setting.
5070,
// TS7016: Could not find a declaration file for module '...'. '...'
// implicitly has an 'any' type. This is due to `allowJs` being off by
// default but importing of a JavaScript module.
7016,
]
.into_iter()
.collect()
});
pub static TYPES_NODE_IGNORABLE_NAMES: &[&str] = &[
"AbortController",
"AbortSignal",
"AsyncIteratorObject",
"atob",
"Blob",
"BroadcastChannel",
"btoa",
"ByteLengthQueuingStrategy",
"CloseEvent",
"CompressionStream",
"CountQueuingStrategy",
"CustomEvent",
"DecompressionStream",
"Disposable",
"DOMException",
"Event",
"EventSource",
"EventTarget",
"fetch",
"File",
"Float32Array",
"Float64Array",
"FormData",
"Headers",
"ImportMeta",
"MessageChannel",
"MessageEvent",
"MessagePort",
"Navigator",
"performance",
"PerformanceEntry",
"PerformanceMark",
"PerformanceMeasure",
"QueuingStrategy",
"QueuingStrategySize",
"ReadableByteStreamController",
"ReadableStream",
"ReadableStreamBYOBReader",
"ReadableStreamBYOBRequest",
"ReadableStreamDefaultController",
"ReadableStreamDefaultReader",
"ReadonlyArray",
"Request",
"Response",
"Storage",
"TextDecoder",
"TextDecoderStream",
"TextEncoder",
"TextEncoderStream",
"TransformStream",
"TransformStreamDefaultController",
"URL",
"URLPattern",
"URLSearchParams",
"WebSocket",
"WritableStream",
"WritableStreamDefaultController",
"WritableStreamDefaultWriter",
];
pub static NODE_ONLY_GLOBALS: &[&str] = &[
"__dirname",
"__filename",
"\"buffer\"",
"Buffer",
"BufferConstructor",
"BufferEncoding",
"clearImmediate",
"clearInterval",
"clearTimeout",
"console",
"Console",
"crypto",
"ErrorConstructor",
"gc",
"Global",
"localStorage",
"queueMicrotask",
"RequestInit",
"ResponseInit",
"sessionStorage",
"setImmediate",
"setInterval",
"setTimeout",
];
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