refactor: extract DenoDir, Emitter, EmitCache and ParsedSourceCache from cli crate (#29961)

cli/cache/mod.rs

@@ -4,14 +4,13 @@ mod cache_db;
 mod caches;
 mod check;
 mod code_cache;
-mod deno_dir;
-mod disk_cache;
-mod emit;
 mod fast_check;
 mod incremental;
 mod module_info;
 mod node;
-mod parsed_source;
+
+pub type DenoDir = deno_resolver::cache::DenoDir<CliSys>;
+pub type DenoDirProvider = deno_resolver::cache::DenoDirProvider<CliSys>;
 
 pub use cache_db::CacheDBHash;
 pub use caches::Caches;
@@ -19,16 +18,10 @@ pub use check::TypeCheckCache;
 pub use code_cache::CodeCache;
 /// Permissions used to save a file in the disk caches.
 pub use deno_cache_dir::CACHE_PERM;
-pub use deno_dir::DenoDir;
-pub use deno_dir::DenoDirProvider;
-pub use disk_cache::DiskCache;
-pub use emit::EmitCache;
 pub use fast_check::FastCheckCache;
 pub use incremental::IncrementalCache;
 pub use module_info::ModuleInfoCache;
 pub use node::NodeAnalysisCache;
-pub use parsed_source::LazyGraphSourceParser;
-pub use parsed_source::ParsedSourceCache;
 
 use crate::sys::CliSys;
 

cli/cache/module_info.rs

@@ -9,13 +9,13 @@ use deno_core::serde_json;
 use deno_error::JsErrorBox;
 use deno_graph::analysis::ModuleInfo;
 use deno_graph::ast::ParserModuleAnalyzer;
+use deno_resolver::cache::ParsedSourceCache;
 use deno_runtime::deno_webstorage::rusqlite::params;
 
 use super::cache_db::CacheDB;
 use super::cache_db::CacheDBConfiguration;
 use super::cache_db::CacheDBHash;
 use super::cache_db::CacheFailure;
-use super::ParsedSourceCache;
 
 const SELECT_MODULE_INFO: &str = "
 SELECT

cli/factory.rs

@@ -31,10 +31,10 @@ use deno_npm_installer::lifecycle_scripts::LifecycleScriptsExecutor;
 use deno_npm_installer::lifecycle_scripts::NullLifecycleScriptsExecutor;
 use deno_npm_installer::process_state::NpmProcessStateKind;
 use deno_npm_installer::NpmInstallerFactoryOptions;
+use deno_resolver::cache::ParsedSourceCache;
 use deno_resolver::cjs::IsCjsResolutionMode;
 use deno_resolver::deno_json::CompilerOptionsResolver;
 use deno_resolver::factory::ConfigDiscoveryOption;
-use deno_resolver::factory::DenoDirPathProviderOptions;
 use deno_resolver::factory::NpmProcessStateOptions;
 use deno_resolver::factory::ResolverFactoryOptions;
 use deno_resolver::factory::SpecifiedImportMapProvider;
@@ -70,13 +70,9 @@ use crate::args::InstallFlags;
 use crate::cache::Caches;
 use crate::cache::CodeCache;
 use crate::cache::DenoDir;
-use crate::cache::DenoDirProvider;
-use crate::cache::EmitCache;
 use crate::cache::GlobalHttpCache;
 use crate::cache::ModuleInfoCache;
 use crate::cache::NodeAnalysisCache;
-use crate::cache::ParsedSourceCache;
-use crate::emit::Emitter;
 use crate::file_fetcher::create_cli_file_fetcher;
 use crate::file_fetcher::CliFileFetcher;
 use crate::file_fetcher::CreateCliFileFetcherOptions;
@@ -86,6 +82,7 @@ use crate::graph_util::FileWatcherReporter;
 use crate::graph_util::ModuleGraphBuilder;
 use crate::graph_util::ModuleGraphCreator;
 use crate::http_util::HttpClientProvider;
+use crate::module_loader::CliEmitter;
 use crate::module_loader::CliModuleLoaderFactory;
 use crate::module_loader::EszipModuleLoader;
 use crate::module_loader::ModuleLoadPreparer;
@@ -249,9 +246,6 @@ impl SpecifiedImportMapProvider for CliSpecifiedImportMapProvider {
 }
 
 pub type CliWorkspaceFactory = deno_resolver::factory::WorkspaceFactory<CliSys>;
-pub type CliDenoDirPathProvider =
-  deno_resolver::factory::DenoDirPathProvider<CliSys>;
-
 pub type CliResolverFactory = deno_resolver::factory::ResolverFactory<CliSys>;
 
 pub struct Deferred<T>(once_cell::unsync::OnceCell<T>);
@@ -307,10 +301,6 @@ struct CliFactoryServices {
   cjs_module_export_analyzer: Deferred<Arc<CliCjsModuleExportAnalyzer>>,
   cli_options: Deferred<Arc<CliOptions>>,
   code_cache: Deferred<Arc<CodeCache>>,
-  deno_dir_path_provider: Deferred<Arc<CliDenoDirPathProvider>>,
-  deno_dir_provider: Deferred<Arc<DenoDirProvider>>,
-  emit_cache: Deferred<Arc<EmitCache>>,
-  emitter: Deferred<Arc<Emitter>>,
   eszip_module_loader_provider: Deferred<Arc<EszipModuleLoaderProvider>>,
   feature_checker: Deferred<Arc<FeatureChecker>>,
   file_fetcher: Deferred<Arc<CliFileFetcher>>,
@@ -325,7 +315,6 @@ struct CliFactoryServices {
   module_load_preparer: Deferred<Arc<ModuleLoadPreparer>>,
   node_code_translator: Deferred<Arc<CliNodeCodeTranslator>>,
   npm_installer_factory: Deferred<CliNpmInstallerFactory>,
-  parsed_source_cache: Deferred<Arc<ParsedSourceCache>>,
   permission_desc_parser:
     Deferred<Arc<RuntimePermissionDescriptorParser<CliSys>>>,
   resolver_factory: Deferred<Arc<CliResolverFactory>>,
@@ -398,34 +387,21 @@ impl CliFactory {
     })
   }
 
-  pub fn deno_dir_path_provider(&self) -> &Arc<CliDenoDirPathProvider> {
-    self.services.deno_dir_path_provider.get_or_init(|| {
-      Arc::new(CliDenoDirPathProvider::new(
-        self.sys(),
-        DenoDirPathProviderOptions {
-          maybe_custom_root: self.flags.internal.cache_path.clone(),
-        },
-      ))
-    })
-  }
-
-  pub fn deno_dir_provider(&self) -> &Arc<DenoDirProvider> {
-    self.services.deno_dir_provider.get_or_init(|| {
-      Arc::new(DenoDirProvider::new(
-        self.sys(),
-        self.deno_dir_path_provider().clone(),
-      ))
-    })
-  }
-
   pub fn deno_dir(&self) -> Result<&DenoDir, AnyError> {
-    Ok(self.deno_dir_provider().get_or_create()?)
+    Ok(
+      self
+        .workspace_factory()?
+        .deno_dir_provider()
+        .get_or_create()?,
+    )
   }
 
   pub fn caches(&self) -> Result<&Arc<Caches>, AnyError> {
     self.services.caches.get_or_try_init(|| {
       let cli_options = self.cli_options()?;
-      let caches = Arc::new(Caches::new(self.deno_dir_provider().clone()));
+      let caches = Arc::new(Caches::new(
+        self.workspace_factory()?.deno_dir_provider().clone(),
+      ));
       // Warm up the caches we know we'll likely need based on the CLI mode
       match cli_options.sub_command() {
         DenoSubcommand::Run(_)
@@ -623,11 +599,7 @@ impl CliFactory {
           .env_current_dir()
           .with_context(|| "Failed getting cwd.")?,
       };
-      let options = new_workspace_factory_options(
+      let options = new_workspace_factory_options(&initial_cwd, &self.flags);
-        &initial_cwd,
-        &self.flags,
-        self.deno_dir_path_provider().clone(),
-      );
       let mut factory =
         CliWorkspaceFactory::new(self.sys(), initial_cwd, options);
       if let Some(workspace_dir) = &self.overrides.workspace_directory {
@@ -660,17 +632,11 @@ impl CliFactory {
       .get_or_init(|| maybe_file_watcher_reporter)
   }
 
-  pub fn emit_cache(&self) -> Result<&Arc<EmitCache>, AnyError> {
-    self.services.emit_cache.get_or_try_init(|| {
-      Ok(Arc::new(EmitCache::new(self.deno_dir()?.gen_cache.clone())))
-    })
-  }
-
   pub fn module_info_cache(&self) -> Result<&Arc<ModuleInfoCache>, AnyError> {
     self.services.module_info_cache.get_or_try_init(|| {
       Ok(Arc::new(ModuleInfoCache::new(
         self.caches()?.dep_analysis_db(),
-        self.parsed_source_cache().clone(),
+        self.resolver_factory()?.parsed_source_cache().clone(),
       )))
     })
   }
@@ -681,22 +647,14 @@ impl CliFactory {
     })
   }
 
-  pub fn parsed_source_cache(&self) -> &Arc<ParsedSourceCache> {
+  pub fn parsed_source_cache(
-    self
+    &self,
-      .services
+  ) -> Result<&Arc<ParsedSourceCache>, AnyError> {
-      .parsed_source_cache
+    Ok(self.resolver_factory()?.parsed_source_cache())
-      .get_or_init(Default::default)
   }
 
-  pub fn emitter(&self) -> Result<&Arc<Emitter>, AnyError> {
+  pub fn emitter(&self) -> Result<&Arc<CliEmitter>, AnyError> {
-    self.services.emitter.get_or_try_init(|| {
+    self.resolver_factory()?.emitter()
-      Ok(Arc::new(Emitter::new(
-        self.cjs_tracker()?.clone(),
-        self.emit_cache()?.clone(),
-        self.parsed_source_cache().clone(),
-        self.compiler_options_resolver()?.clone(),
-      )))
-    })
   }
 
   pub async fn lint_rule_provider(&self) -> Result<LintRuleProvider, AnyError> {
@@ -771,7 +729,7 @@ impl CliFactory {
       node_analysis_cache,
       self.cjs_tracker()?.clone(),
       self.fs().clone(),
-      Some(self.parsed_source_cache().clone()),
+      Some(self.parsed_source_cache()?.clone()),
     ))
   }
 
@@ -841,7 +799,7 @@ impl CliFactory {
             self.npm_graph_resolver().await?.clone(),
             self.npm_installer_if_managed().await?.cloned(),
             self.npm_resolver().await?.clone(),
-            self.parsed_source_cache().clone(),
+            self.resolver_factory()?.parsed_source_cache().clone(),
             self.resolver().await?.clone(),
             self.root_permissions_container()?.clone(),
             self.sys(),
@@ -1021,8 +979,9 @@ impl CliFactory {
     let node_code_translator = self.node_code_translator().await?;
     let cjs_tracker = self.cjs_tracker()?.clone();
     let workspace_factory = self.workspace_factory()?;
+    let resolver_factory = self.resolver_factory()?;
     let npm_registry_permission_checker = {
-      let mode = if self.resolver_factory()?.use_byonm()? {
+      let mode = if resolver_factory.use_byonm()? {
         NpmRegistryReadPermissionCheckerMode::Byonm
       } else if let Some(node_modules_dir) =
         workspace_factory.node_modules_dir_path()?
@@ -1061,7 +1020,7 @@ impl CliFactory {
       ),
       npm_registry_permission_checker,
       cli_npm_resolver.clone(),
-      self.parsed_source_cache().clone(),
+      resolver_factory.parsed_source_cache().clone(),
       self.resolver().await?.clone(),
       self.sys(),
       maybe_eszip_loader,
@@ -1292,8 +1251,7 @@ impl CliFactory {
 fn new_workspace_factory_options(
   initial_cwd: &Path,
   flags: &Flags,
-  deno_dir_path_provider: Arc<CliDenoDirPathProvider>,
+) -> deno_resolver::factory::WorkspaceFactoryOptions {
-) -> deno_resolver::factory::WorkspaceFactoryOptions<CliSys> {
   deno_resolver::factory::WorkspaceFactoryOptions {
     additional_config_file_names: if matches!(
       flags.subcommand,
@@ -1316,7 +1274,10 @@ fn new_workspace_factory_options(
       }
       ConfigFlag::Disabled => ConfigDiscoveryOption::Disabled,
     },
-    deno_dir_path_provider: Some(deno_dir_path_provider),
+    emit_cache_version: Cow::Borrowed(
+      deno_lib::version::DENO_VERSION_INFO.deno,
+    ),
+    maybe_custom_deno_dir_root: flags.internal.cache_path.clone(),
     // For `deno install/add/remove/init` we want to force the managed
     // resolver so it can set up the `node_modules/` directory.
     is_package_manager_subcommand: matches!(

cli/graph_util.rs

@@ -34,6 +34,7 @@ use deno_graph::WorkspaceFastCheckOption;
 use deno_npm_installer::graph::NpmCachingStrategy;
 use deno_npm_installer::PackageCaching;
 use deno_path_util::url_to_file_path;
+use deno_resolver::cache::ParsedSourceCache;
 use deno_resolver::deno_json::CompilerOptionsResolver;
 use deno_resolver::deno_json::JsxImportSourceConfigResolver;
 use deno_resolver::npm::DenoInNpmPackageChecker;
@@ -53,7 +54,6 @@ use crate::args::DenoSubcommand;
 use crate::cache;
 use crate::cache::GlobalHttpCache;
 use crate::cache::ModuleInfoCache;
-use crate::cache::ParsedSourceCache;
 use crate::colors;
 use crate::file_fetcher::CliDenoGraphLoader;
 use crate::file_fetcher::CliFileFetcher;

cli/lsp/config.rs

@@ -1,5 +1,6 @@
 // Copyright 2018-2025 the Deno authors. MIT license.
 
+use std::borrow::Cow;
 use std::collections::BTreeMap;
 use std::collections::BTreeSet;
 use std::collections::HashMap;
@@ -1451,8 +1452,11 @@ impl ConfigData {
       WorkspaceFactoryOptions {
         additional_config_file_names: &[],
         config_discovery: ConfigDiscoveryOption::DiscoverCwd,
-        deno_dir_path_provider: None,
+        maybe_custom_deno_dir_root: None,
         is_package_manager_subcommand: false,
+        emit_cache_version: Cow::Borrowed(
+          deno_lib::version::DENO_VERSION_INFO.deno,
+        ),
         frozen_lockfile: None,
         lock_arg: None,
         lockfile_skip_write: false,

cli/main.rs

@@ -3,7 +3,6 @@
 mod args;
 mod cache;
 mod cdp;
-mod emit;
 mod factory;
 mod file_fetcher;
 mod graph_container;

cli/module_loader.rs

@@ -54,6 +54,7 @@ use deno_lib::npm::NpmRegistryReadPermissionChecker;
 use deno_lib::util::hash::FastInsecureHasher;
 use deno_lib::worker::CreateModuleLoaderResult;
 use deno_lib::worker::ModuleLoaderFactory;
+use deno_resolver::cache::ParsedSourceCache;
 use deno_resolver::file_fetcher::FetchOptions;
 use deno_resolver::file_fetcher::FetchPermissionsOptionRef;
 use deno_resolver::graph::ResolveWithGraphErrorKind;
@@ -84,8 +85,6 @@ use crate::args::CliOptions;
 use crate::args::DenoSubcommand;
 use crate::args::TsTypeLib;
 use crate::cache::CodeCache;
-use crate::cache::ParsedSourceCache;
-use crate::emit::Emitter;
 use crate::file_fetcher::CliFileFetcher;
 use crate::graph_container::MainModuleGraphContainer;
 use crate::graph_container::ModuleGraphContainer;
@@ -115,6 +114,8 @@ pub type CliNpmModuleLoader = deno_lib::loader::NpmModuleLoader<
   CliNpmResolver,
   CliSys,
 >;
+pub type CliEmitter =
+  deno_resolver::emit::Emitter<DenoInNpmPackageChecker, CliSys>;
 
 #[derive(Debug, thiserror::Error, deno_error::JsError)]
 pub enum PrepareModuleLoadError {
@@ -331,7 +332,7 @@ struct SharedCliModuleLoaderState {
   is_repl: bool,
   cjs_tracker: Arc<CliCjsTracker>,
   code_cache: Option<Arc<CodeCache>>,
-  emitter: Arc<Emitter>,
+  emitter: Arc<CliEmitter>,
   file_fetcher: Arc<CliFileFetcher>,
   in_npm_pkg_checker: DenoInNpmPackageChecker,
   main_module_graph_container: Arc<MainModuleGraphContainer>,
@@ -393,7 +394,7 @@ impl CliModuleLoaderFactory {
     options: &CliOptions,
     cjs_tracker: Arc<CliCjsTracker>,
     code_cache: Option<Arc<CodeCache>>,
-    emitter: Arc<Emitter>,
+    emitter: Arc<CliEmitter>,
     file_fetcher: Arc<CliFileFetcher>,
     in_npm_pkg_checker: DenoInNpmPackageChecker,
     main_module_graph_container: Arc<MainModuleGraphContainer>,
@@ -459,9 +460,6 @@ impl CliModuleLoaderFactory {
         parent_permissions,
         permissions,
         graph_container: graph_container.clone(),
-        node_code_translator: self.shared.node_code_translator.clone(),
-        emitter: self.shared.emitter.clone(),
-        parsed_source_cache: self.shared.parsed_source_cache.clone(),
         shared: self.shared.clone(),
         loaded_files: Default::default(),
       })));
@@ -527,9 +525,6 @@ impl CliModuleLoaderFactory {
       parent_permissions: root_permissions.clone(),
       permissions: root_permissions,
       graph_container: (*self.shared.main_module_graph_container).clone(),
-      node_code_translator: self.shared.node_code_translator.clone(),
-      emitter: self.shared.emitter.clone(),
-      parsed_source_cache: self.shared.parsed_source_cache.clone(),
       shared: self.shared.clone(),
       loaded_files: Default::default(),
     }))
@@ -557,7 +552,7 @@ pub struct EnhancedGraphError {
 pub enum LoadPreparedModuleError {
   #[class(inherit)]
   #[error(transparent)]
-  NpmModuleLoad(#[from] crate::emit::EmitParsedSourceHelperError),
+  NpmModuleLoad(#[from] deno_resolver::emit::EmitParsedSourceHelperError),
   #[class(inherit)]
   #[error(transparent)]
   LoadMaybeCjs(#[from] LoadMaybeCjsError),
@@ -576,7 +571,7 @@ pub enum LoadPreparedModuleError {
 pub enum LoadMaybeCjsError {
   #[class(inherit)]
   #[error(transparent)]
-  NpmModuleLoad(#[from] crate::emit::EmitParsedSourceHelperError),
+  NpmModuleLoad(#[from] deno_resolver::emit::EmitParsedSourceHelperError),
   #[class(inherit)]
   #[error(transparent)]
   TranslateCjsToEsm(#[from] node_resolver::analyze::TranslateCjsToEsmError),
@@ -591,9 +586,6 @@ struct CliModuleLoaderInner<TGraphContainer: ModuleGraphContainer> {
   parent_permissions: PermissionsContainer,
   permissions: PermissionsContainer,
   shared: Arc<SharedCliModuleLoaderState>,
-  emitter: Arc<Emitter>,
-  node_code_translator: Arc<CliNodeCodeTranslator>,
-  parsed_source_cache: Arc<ParsedSourceCache>,
   graph_container: TGraphContainer,
   loaded_files: RefCell<HashSet<ModuleSpecifier>>,
 }
@@ -1109,12 +1101,13 @@ impl<TGraphContainer: ModuleGraphContainer>
         source,
       }) => {
         let transpile_result = self
+          .shared
           .emitter
           .emit_parsed_source(specifier, media_type, ModuleKind::Esm, source)
           .await?;
 
         // at this point, we no longer need the parsed source in memory, so free it
-        self.parsed_source_cache.free(specifier);
+        self.shared.parsed_source_cache.free(specifier);
 
         Ok(Some(ModuleCodeStringSource {
           // note: it's faster to provide a string if we know it's a string
@@ -1162,7 +1155,7 @@ impl<TGraphContainer: ModuleGraphContainer>
         media_type,
         source,
       }) => {
-        let transpile_result = self.emitter.emit_parsed_source_sync(
+        let transpile_result = self.shared.emitter.emit_parsed_source_sync(
           specifier,
           media_type,
           ModuleKind::Esm,
@@ -1170,7 +1163,7 @@ impl<TGraphContainer: ModuleGraphContainer>
         )?;
 
         // at this point, we no longer need the parsed source in memory, so free it
-        self.parsed_source_cache.free(specifier);
+        self.shared.parsed_source_cache.free(specifier);
 
         Ok(Some(ModuleCodeStringSource {
           // note: it's faster to provide a string if we know it's a string
@@ -1180,7 +1173,7 @@ impl<TGraphContainer: ModuleGraphContainer>
         }))
       }
       Some(CodeOrDeferredEmit::Cjs { .. }) => {
-        self.parsed_source_cache.free(specifier);
+        self.shared.parsed_source_cache.free(specifier);
 
         // todo(dsherret): to make this work, we should probably just
         // rely on the CJS export cache. At the moment this is hard because
@@ -1316,7 +1309,7 @@ impl<TGraphContainer: ModuleGraphContainer>
             };
 
             // at this point, we no longer need the parsed source in memory, so free it
-            self.parsed_source_cache.free(specifier);
+            self.shared.parsed_source_cache.free(specifier);
 
             Ok(Some(CodeOrDeferredEmit::Code(ModuleCodeStringSource {
               code: ModuleSourceCode::String(code),
@@ -1365,6 +1358,7 @@ impl<TGraphContainer: ModuleGraphContainer>
     let js_source = if media_type.is_emittable() {
       Cow::Owned(
         self
+          .shared
           .emitter
           .emit_parsed_source(
             specifier,
@@ -1378,11 +1372,12 @@ impl<TGraphContainer: ModuleGraphContainer>
       Cow::Borrowed(original_source.as_ref())
     };
     let text = self
+      .shared
       .node_code_translator
       .translate_cjs_to_esm(specifier, Some(js_source))
       .await?;
     // at this point, we no longer need the parsed source in memory, so free it
-    self.parsed_source_cache.free(specifier);
+    self.shared.parsed_source_cache.free(specifier);
     Ok(ModuleCodeStringSource {
       code: match text {
         // perf: if the text is borrowed, that means it didn't make any changes
@@ -1731,7 +1726,7 @@ impl ModuleGraphUpdatePermit for WorkerModuleGraphUpdatePermit {
 #[derive(Debug)]
 struct CliNodeRequireLoader<TGraphContainer: ModuleGraphContainer> {
   cjs_tracker: Arc<CliCjsTracker>,
-  emitter: Arc<Emitter>,
+  emitter: Arc<CliEmitter>,
   npm_resolver: CliNpmResolver,
   sys: CliSys,
   graph_container: TGraphContainer,

cli/node.rs

@@ -8,6 +8,7 @@ use deno_ast::ModuleExportsAndReExports;
 use deno_ast::ModuleSpecifier;
 use deno_error::JsErrorBox;
 use deno_graph::ast::ParsedSourceStore;
+use deno_resolver::cache::ParsedSourceCache;
 use deno_resolver::npm::DenoInNpmPackageChecker;
 use deno_runtime::deno_fs;
 use node_resolver::analyze::CjsAnalysis as ExtNodeCjsAnalysis;
@@ -22,7 +23,6 @@ use serde::Serialize;
 
 use crate::cache::CacheDBHash;
 use crate::cache::NodeAnalysisCache;
-use crate::cache::ParsedSourceCache;
 use crate::npm::CliNpmResolver;
 use crate::resolver::CliCjsTracker;
 use crate::sys::CliSys;

cli/standalone/binary.rs

@@ -64,9 +64,9 @@ use crate::args::get_default_v8_flags;
 use crate::args::CliOptions;
 use crate::args::CompileFlags;
 use crate::cache::DenoDir;
-use crate::emit::Emitter;
 use crate::file_fetcher::CliFileFetcher;
 use crate::http_util::HttpClientProvider;
+use crate::module_loader::CliEmitter;
 use crate::node::CliCjsModuleExportAnalyzer;
 use crate::npm::CliNpmResolver;
 use crate::resolver::CliCjsTracker;
@@ -201,7 +201,7 @@ pub struct DenoCompileBinaryWriter<'a> {
   cjs_tracker: &'a CliCjsTracker,
   cli_options: &'a CliOptions,
   deno_dir: &'a DenoDir,
-  emitter: &'a Emitter,
+  emitter: &'a CliEmitter,
   file_fetcher: &'a CliFileFetcher,
   http_client_provider: &'a HttpClientProvider,
   npm_resolver: &'a CliNpmResolver,
@@ -216,7 +216,7 @@ impl<'a> DenoCompileBinaryWriter<'a> {
     cjs_tracker: &'a CliCjsTracker,
     cli_options: &'a CliOptions,
     deno_dir: &'a DenoDir,
-    emitter: &'a Emitter,
+    emitter: &'a CliEmitter,
     file_fetcher: &'a CliFileFetcher,
     http_client_provider: &'a HttpClientProvider,
     npm_resolver: &'a CliNpmResolver,

cli/tools/compile.rs

@@ -162,7 +162,7 @@ pub async fn compile_eszip(
   let factory = CliFactory::from_flags(flags);
   let cli_options = factory.cli_options()?;
   let module_graph_creator = factory.module_graph_creator().await?;
-  let parsed_source_cache = factory.parsed_source_cache();
+  let parsed_source_cache = factory.parsed_source_cache()?;
   let compiler_options_resolver = factory.compiler_options_resolver()?;
   let bin_name_resolver = factory.bin_name_resolver()?;
   let entrypoint = cli_options.resolve_main_module()?;

cli/tools/doc.rs

@@ -109,7 +109,7 @@ pub async fn doc(
   let factory = CliFactory::from_flags(flags);
   let cli_options = factory.cli_options()?;
   let module_info_cache = factory.module_info_cache()?;
-  let parsed_source_cache = factory.parsed_source_cache();
+  let parsed_source_cache = factory.parsed_source_cache()?;
   let capturing_parser = parsed_source_cache.as_capturing_parser();
   let analyzer = module_info_cache.as_module_analyzer();
 

cli/tools/publish/graph.rs

@@ -13,12 +13,12 @@ use deno_graph::ModuleEntryRef;
 use deno_graph::ModuleGraph;
 use deno_graph::ResolutionResolved;
 use deno_graph::WalkOptions;
+use deno_resolver::cache::ParsedSourceCache;
 use deno_semver::jsr::JsrPackageReqReference;
 use deno_semver::npm::NpmPackageReqReference;
 
 use super::diagnostics::PublishDiagnostic;
 use super::diagnostics::PublishDiagnosticsCollector;
-use crate::cache::ParsedSourceCache;
 
 pub struct GraphDiagnosticsCollector {
   parsed_source_cache: Arc<ParsedSourceCache>,

cli/tools/publish/mod.rs

@@ -117,14 +117,15 @@ pub async fn publish(
   );
 
   let diagnostics_collector = PublishDiagnosticsCollector::default();
+  let parsed_source_cache = cli_factory.parsed_source_cache()?;
   let module_content_provider = Arc::new(ModuleContentProvider::new(
-    cli_factory.parsed_source_cache().clone(),
+    parsed_source_cache.clone(),
     specifier_unfurler,
     cli_factory.sys(),
     cli_factory.compiler_options_resolver()?.clone(),
   ));
   let publish_preparer = PublishPreparer::new(
-    GraphDiagnosticsCollector::new(cli_factory.parsed_source_cache().clone()),
+    GraphDiagnosticsCollector::new(parsed_source_cache.clone()),
     cli_factory.module_graph_creator().await?.clone(),
     cli_factory.type_checker().await?.clone(),
     cli_options.clone(),

cli/tools/publish/module_content.rs

@@ -11,6 +11,8 @@ use deno_core::anyhow::Context;
 use deno_core::error::AnyError;
 use deno_core::url::Url;
 use deno_graph::ModuleGraph;
+use deno_resolver::cache::LazyGraphSourceParser;
+use deno_resolver::cache::ParsedSourceCache;
 use deno_resolver::deno_json::CompilerOptionsResolver;
 use deno_resolver::workspace::ResolutionKind;
 use lazy_regex::Lazy;
@@ -21,8 +23,6 @@ use super::diagnostics::PublishDiagnostic;
 use super::diagnostics::PublishDiagnosticsCollector;
 use super::unfurl::SpecifierUnfurler;
 use super::unfurl::SpecifierUnfurlerDiagnostic;
-use crate::cache::LazyGraphSourceParser;
-use crate::cache::ParsedSourceCache;
 use crate::sys::CliSys;
 
 struct JsxFolderOptions<'a> {

cli/tools/run/hmr.rs

@@ -15,7 +15,7 @@ use deno_terminal::colors;
 use tokio::select;
 
 use crate::cdp;
-use crate::emit::Emitter;
+use crate::module_loader::CliEmitter;
 use crate::util::file_watcher::WatcherCommunicator;
 use crate::util::file_watcher::WatcherRestartMode;
 
@@ -79,7 +79,7 @@ pub struct HmrRunner {
   session: LocalInspectorSession,
   watcher_communicator: Arc<WatcherCommunicator>,
   script_ids: HashMap<String, String>,
-  emitter: Arc<Emitter>,
+  emitter: Arc<CliEmitter>,
 }
 
 #[async_trait::async_trait(?Send)]
@@ -159,9 +159,11 @@ impl crate::worker::HmrRunner for HmrRunner {
               continue;
             };
 
-            let source_code = self.emitter.load_and_emit_for_hmr(
+            let source_code = tokio::fs::read_to_string(deno_path_util::url_to_file_path(&module_url).unwrap()).await?;
+            let source_code = self.emitter.emit_for_hmr(
               &module_url,
-            ).await?;
+              source_code,
+            )?;
 
             let mut tries = 1;
             loop {
@@ -193,7 +195,7 @@ impl crate::worker::HmrRunner for HmrRunner {
 
 impl HmrRunner {
   pub fn new(
-    emitter: Arc<Emitter>,
+    emitter: Arc<CliEmitter>,
     session: LocalInspectorSession,
     watcher_communicator: Arc<WatcherCommunicator>,
   ) -> Self {

libs/resolver/Cargo.toml

@@ -14,7 +14,7 @@ description = "Deno resolution algorithm"
 path = "lib.rs"
 
 [features]
-deno_ast = ["dep:deno_ast", "twox-hash"]
+deno_ast = ["dep:deno_ast", "deno_graph/swc"]
 graph = ["deno_graph", "node_resolver/graph", "http", "deno_permissions"]
 sync = ["dashmap", "deno_package_json/sync", "node_resolver/sync", "deno_config/sync", "deno_cache_dir/sync"]
 
@@ -53,7 +53,7 @@ serde.workspace = true
 serde_json.workspace = true
 sys_traits.workspace = true
 thiserror.workspace = true
-twox-hash = { workspace = true, optional = true }
+twox-hash.workspace = true
 url.workspace = true
 
 [dev-dependencies]

libs/resolver/cache/deno_dir.rs

@@ -2,38 +2,50 @@
 
 use std::env;
 use std::path::PathBuf;
-use std::sync::Arc;
 
 use deno_cache_dir::DenoDirResolutionError;
+use deno_cache_dir::ResolveDenoDirSys;
 
 use super::DiskCache;
-use crate::factory::CliDenoDirPathProvider;
+use super::DiskCacheSys;
-use crate::sys::CliSys;
+
+#[derive(Debug, Clone)]
+pub struct DenoDirOptions {
+  pub maybe_custom_root: Option<PathBuf>,
+}
+
+#[sys_traits::auto_impl]
+pub trait DenoDirSys: DiskCacheSys + ResolveDenoDirSys + Clone {}
+
+#[allow(clippy::disallowed_types)]
+pub type DenoDirProviderRc<TSys> = crate::sync::MaybeArc<DenoDirProvider<TSys>>;
 
 /// Lazily creates the deno dir which might be useful in scenarios
 /// where functionality wants to continue if the DENO_DIR can't be created.
-pub struct DenoDirProvider {
+pub struct DenoDirProvider<TSys: DenoDirSys> {
-  deno_dir_path_provider: Arc<CliDenoDirPathProvider>,
+  options: DenoDirOptions,
-  sys: CliSys,
+  sys: TSys,
-  deno_dir: once_cell::sync::OnceCell<DenoDir>,
+  deno_dir_cell: once_cell::sync::OnceCell<DenoDir<TSys>>,
 }
 
-impl DenoDirProvider {
+impl<TSys: DenoDirSys> DenoDirProvider<TSys> {
-  pub fn new(
+  pub fn new(sys: TSys, options: DenoDirOptions) -> Self {
-    sys: CliSys,
-    deno_dir_path_provider: Arc<CliDenoDirPathProvider>,
-  ) -> Self {
     Self {
+      options,
       sys,
-      deno_dir_path_provider,
+      deno_dir_cell: Default::default(),
-      deno_dir: Default::default(),
     }
   }
 
-  pub fn get_or_create(&self) -> Result<&DenoDir, DenoDirResolutionError> {
+  pub fn get_or_create(
-    self.deno_dir.get_or_try_init(|| {
+    &self,
-      let path = self.deno_dir_path_provider.get_or_create()?;
+  ) -> Result<&DenoDir<TSys>, DenoDirResolutionError> {
-      Ok(DenoDir::new(self.sys.clone(), path.clone()))
+    self.deno_dir_cell.get_or_try_init(|| {
+      let path = deno_cache_dir::resolve_deno_dir(
+        &self.sys,
+        self.options.maybe_custom_root.clone(),
+      )?;
+      Ok(DenoDir::new(self.sys.clone(), path))
     })
   }
 }
@@ -41,18 +53,19 @@ impl DenoDirProvider {
 /// `DenoDir` serves as coordinator for multiple `DiskCache`s containing them
 /// in single directory that can be controlled with `$DENO_DIR` env variable.
 #[derive(Debug, Clone)]
-pub struct DenoDir {
+pub struct DenoDir<TSys: DiskCacheSys> {
   /// Example: /Users/rld/.deno/
   pub root: PathBuf,
   /// Used by TsCompiler to cache compiler output.
-  pub gen_cache: DiskCache,
+  pub gen_cache: DiskCache<TSys>,
 }
 
-impl DenoDir {
+impl<TSys: DiskCacheSys> DenoDir<TSys> {
-  pub fn new(sys: CliSys, root: PathBuf) -> Self {
+  pub fn new(sys: TSys, root: PathBuf) -> Self {
+    #[cfg(not(target_arch = "wasm32"))]
     assert!(root.is_absolute());
-    let gen_path = root.join("gen");
 
+    let gen_path = root.join("gen");
     Self {
       root,
       gen_cache: DiskCache::new(sys, gen_path),

libs/resolver/cache/disk_cache.rs

@@ -9,26 +9,49 @@ use std::str;
 
 use deno_cache_dir::url_to_filename;
 use deno_cache_dir::CACHE_PERM;
-use deno_core::url::Host;
-use deno_core::url::Url;
 use deno_path_util::fs::atomic_write_file_with_retries;
 use sys_traits::FsRead;
+use url::Host;
+use url::Url;
 
-use crate::sys::CliSys;
+#[sys_traits::auto_impl]
+pub trait DiskCacheSys:
+  deno_path_util::fs::AtomicWriteFileWithRetriesSys + FsRead
+{
+}
 
 #[derive(Debug, Clone)]
-pub struct DiskCache {
+pub struct DiskCache<TSys: DiskCacheSys> {
-  sys: CliSys,
+  sys: TSys,
   pub location: PathBuf,
 }
 
-impl DiskCache {
+impl<TSys: DiskCacheSys> DiskCache<TSys> {
   /// `location` must be an absolute path.
-  pub fn new(sys: CliSys, location: PathBuf) -> Self {
+  pub fn new(sys: TSys, location: PathBuf) -> Self {
+    #[cfg(not(target_arch = "wasm32"))]
     assert!(location.is_absolute());
+
     Self { sys, location }
   }
 
+  pub fn get_cache_filename_with_extension(
+    &self,
+    url: &Url,
+    extension: &str,
+  ) -> Option<PathBuf> {
+    let base = self.get_cache_filename(url)?;
+
+    match base.extension() {
+      None => Some(base.with_extension(extension)),
+      Some(ext) => {
+        let original_extension = OsStr::to_str(ext).unwrap();
+        let final_extension = format!("{original_extension}.{extension}");
+        Some(base.with_extension(final_extension))
+      }
+    }
+  }
+
   fn get_cache_filename(&self, url: &Url) -> Option<PathBuf> {
     let mut out = PathBuf::new();
 
@@ -52,13 +75,16 @@ impl DiskCache {
       }
       "http" | "https" | "data" | "blob" => out = url_to_filename(url).ok()?,
       "file" => {
-        let path = match url.to_file_path() {
+        let path = match deno_path_util::url_to_file_path(url) {
           Ok(path) => path,
           Err(_) => return None,
         };
         let mut path_components = path.components();
 
-        if cfg!(target_os = "windows") {
+        if sys_traits::impls::is_windows() {
+          if url.path() == "/" {
+            return None; // not a valid windows path
+          }
           if let Some(Component::Prefix(prefix_component)) =
             path_components.next()
           {
@@ -97,23 +123,6 @@ impl DiskCache {
     Some(out)
   }
 
-  pub fn get_cache_filename_with_extension(
-    &self,
-    url: &Url,
-    extension: &str,
-  ) -> Option<PathBuf> {
-    let base = self.get_cache_filename(url)?;
-
-    match base.extension() {
-      None => Some(base.with_extension(extension)),
-      Some(ext) => {
-        let original_extension = OsStr::to_str(ext).unwrap();
-        let final_extension = format!("{original_extension}.{extension}");
-        Some(base.with_extension(final_extension))
-      }
-    }
-  }
-
   pub fn get(&self, filename: &Path) -> std::io::Result<Vec<u8>> {
     let path = self.location.join(filename);
     Ok(self.sys.fs_read(path)?.into_owned())
@@ -268,7 +277,7 @@ mod tests {
     for test_case in &test_cases {
       let cache_filename =
         cache.get_cache_filename(&Url::parse(test_case).unwrap());
-      assert_eq!(cache_filename, None);
+      assert_eq!(cache_filename, None, "Failed for {:?}", test_case);
     }
   }
 }

libs/resolver/cache/emit.rs

@@ -1,19 +1,28 @@
 // Copyright 2018-2025 the Deno authors. MIT license.
 
+use std::borrow::Cow;
+use std::hash::Hash;
+use std::hash::Hasher;
 use std::path::PathBuf;
 
-use deno_ast::ModuleSpecifier;
+use anyhow::anyhow;
-use deno_core::anyhow::anyhow;
+use anyhow::Error as AnyError;
-use deno_core::error::AnyError;
+use deno_unsync::sync::AtomicFlag;
-use deno_core::unsync::sync::AtomicFlag;
+use url::Url;
-use deno_lib::version::DENO_VERSION_INFO;
 
 use super::DiskCache;
+use super::DiskCacheSys;
+
+#[allow(clippy::disallowed_types)]
+pub type EmitCacheRc<TSys> = crate::sync::MaybeArc<EmitCache<TSys>>;
+
+#[sys_traits::auto_impl]
+pub trait EmitCacheSys: DiskCacheSys + sys_traits::EnvVar {}
 
 /// The cache that stores previously emitted files.
 #[derive(Debug)]
-pub struct EmitCache {
+pub struct EmitCache<TSys: EmitCacheSys> {
-  disk_cache: DiskCache,
+  disk_cache: DiskCache<TSys>,
   emit_failed_flag: AtomicFlag,
   file_serializer: EmitFileSerializer,
   mode: Mode,
@@ -25,9 +34,14 @@ enum Mode {
   Disable,
 }
 
-impl EmitCache {
+impl<TSys: EmitCacheSys> EmitCache<TSys> {
-  pub fn new(disk_cache: DiskCache) -> Self {
+  pub fn new(
-    let mode = match std::env::var("DENO_EMIT_CACHE_MODE")
+    sys: &TSys,
+    disk_cache: DiskCache<TSys>,
+    cache_version: Cow<'static, str>,
+  ) -> Self {
+    let mode = match sys
+      .env_var("DENO_EMIT_CACHE_MODE")
       .unwrap_or_default()
       .as_str()
     {
@@ -42,9 +56,7 @@ impl EmitCache {
     Self {
       disk_cache,
       emit_failed_flag: Default::default(),
-      file_serializer: EmitFileSerializer {
+      file_serializer: EmitFileSerializer { cache_version },
-        cli_version: DENO_VERSION_INFO.deno,
-      },
       mode,
     }
   }
@@ -59,7 +71,7 @@ impl EmitCache {
   /// or emits that do not match the source.
   pub fn get_emit_code(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
     expected_source_hash: u64,
   ) -> Option<String> {
     if matches!(self.mode, Mode::Disable) {
@@ -74,12 +86,7 @@ impl EmitCache {
   }
 
   /// Sets the emit code in the cache.
-  pub fn set_emit_code(
+  pub fn set_emit_code(&self, specifier: &Url, source_hash: u64, code: &[u8]) {
-    &self,
-    specifier: &ModuleSpecifier,
-    source_hash: u64,
-    code: &[u8],
-  ) {
     if let Err(err) = self.set_emit_code_result(specifier, source_hash, code) {
       // might error in cases such as a readonly file system
       log::debug!("Error saving emit data ({}): {}", specifier, err);
@@ -90,7 +97,7 @@ impl EmitCache {
 
   fn set_emit_code_result(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
     source_hash: u64,
     code: &[u8],
   ) -> Result<(), AnyError> {
@@ -108,7 +115,7 @@ impl EmitCache {
     Ok(())
   }
 
-  fn get_emit_filename(&self, specifier: &ModuleSpecifier) -> Option<PathBuf> {
+  fn get_emit_filename(&self, specifier: &Url) -> Option<PathBuf> {
     self
       .disk_cache
       .get_cache_filename_with_extension(specifier, "js")
@@ -119,7 +126,7 @@ const LAST_LINE_PREFIX: &str = "\n// denoCacheMetadata=";
 
 #[derive(Debug)]
 struct EmitFileSerializer {
-  cli_version: &'static str,
+  cache_version: Cow<'static, str>,
 }
 
 impl EmitFileSerializer {
@@ -172,11 +179,11 @@ impl EmitFileSerializer {
     // it's ok to use an insecure hash here because
     // if someone can change the emit source then they
     // can also change the version hash
-    deno_lib::util::hash::FastInsecureHasher::new_without_deno_version() // use cli_version property instead
+    let mut hasher = twox_hash::XxHash64::default();
-      .write(bytes)
+    bytes.hash(&mut hasher);
     // emit should not be re-used between cli versions
-      .write_str(self.cli_version)
+    self.cache_version.hash(&mut hasher);
-      .finish()
+    hasher.finish()
   }
 }
 
@@ -185,27 +192,28 @@ mod test {
   use test_util::TempDir;
 
   use super::*;
-  use crate::sys::CliSys;
 
   #[test]
   pub fn emit_cache_general_use() {
     let temp_dir = TempDir::new();
     let disk_cache =
-      DiskCache::new(CliSys::default(), temp_dir.path().to_path_buf());
+      DiskCache::new(sys_traits::impls::RealSys, temp_dir.path().to_path_buf());
     let cache = EmitCache {
       disk_cache: disk_cache.clone(),
       file_serializer: EmitFileSerializer {
-        cli_version: "1.0.0",
+        cache_version: "1.0.0".into(),
       },
       emit_failed_flag: Default::default(),
       mode: Mode::Normal,
     };
 
-    let specifier1 =
+    let specifier1 = deno_path_util::url_from_file_path(
-      ModuleSpecifier::from_file_path(temp_dir.path().join("file1.ts"))
+      temp_dir.path().join("file1.ts").as_path(),
+    )
     .unwrap();
-    let specifier2 =
+    let specifier2 = deno_path_util::url_from_file_path(
-      ModuleSpecifier::from_file_path(temp_dir.path().join("file2.ts"))
+      temp_dir.path().join("file2.ts").as_path(),
+    )
     .unwrap();
     assert_eq!(cache.get_emit_code(&specifier1, 1), None);
     let emit_code1 = "text1".to_string();
@@ -225,7 +233,7 @@ mod test {
     let cache = EmitCache {
       disk_cache: disk_cache.clone(),
       file_serializer: EmitFileSerializer {
-        cli_version: "2.0.0",
+        cache_version: "2.0.0".into(),
       },
       emit_failed_flag: Default::default(),
       mode: Mode::Normal,
@@ -237,7 +245,7 @@ mod test {
     let cache = EmitCache {
       disk_cache,
       file_serializer: EmitFileSerializer {
-        cli_version: "2.0.0",
+        cache_version: "2.0.0".into(),
       },
       emit_failed_flag: Default::default(),
       mode: Mode::Normal,

libs/resolver/cache/mod.rs

@@ -0,0 +1,24 @@
+// Copyright 2018-2025 the Deno authors. MIT license.
+
+mod deno_dir;
+mod disk_cache;
+mod emit;
+#[cfg(feature = "deno_ast")]
+mod parsed_source;
+
+pub use deno_dir::DenoDir;
+pub use deno_dir::DenoDirOptions;
+pub use deno_dir::DenoDirProvider;
+pub use deno_dir::DenoDirProviderRc;
+pub use deno_dir::DenoDirSys;
+pub use disk_cache::DiskCache;
+pub use disk_cache::DiskCacheSys;
+pub use emit::EmitCache;
+pub use emit::EmitCacheRc;
+pub use emit::EmitCacheSys;
+#[cfg(feature = "deno_ast")]
+pub use parsed_source::LazyGraphSourceParser;
+#[cfg(feature = "deno_ast")]
+pub use parsed_source::ParsedSourceCache;
+#[cfg(feature = "deno_ast")]
+pub use parsed_source::ParsedSourceCacheRc;

libs/resolver/cache/parsed_source.rs

@@ -1,17 +1,12 @@
 // Copyright 2018-2025 the Deno authors. MIT license.
 
-use std::collections::HashMap;
-use std::sync::Arc;
-
-use deno_ast::MediaType;
-use deno_ast::ModuleSpecifier;
 use deno_ast::ParsedSource;
-use deno_core::parking_lot::Mutex;
 use deno_graph::ast::CapturingEsParser;
 use deno_graph::ast::DefaultEsParser;
 use deno_graph::ast::EsParser;
-use deno_graph::ast::ParseOptions;
 use deno_graph::ast::ParsedSourceStore;
+use deno_media_type::MediaType;
+use url::Url;
 
 /// Lazily parses JS/TS sources from a `deno_graph::ModuleGraph` given
 /// a `ParsedSourceCache`. Note that deno_graph doesn't necessarily cause
@@ -34,8 +29,8 @@ impl<'a> LazyGraphSourceParser<'a> {
   #[allow(clippy::result_large_err)]
   pub fn get_or_parse_source(
     &self,
-    module_specifier: &ModuleSpecifier,
+    module_specifier: &Url,
-  ) -> Result<Option<deno_ast::ParsedSource>, deno_ast::ParseDiagnostic> {
+  ) -> Result<Option<ParsedSource>, deno_ast::ParseDiagnostic> {
     let Some(deno_graph::Module::Js(module)) = self.graph.get(module_specifier)
     else {
       return Ok(None);
@@ -47,9 +42,15 @@ impl<'a> LazyGraphSourceParser<'a> {
   }
 }
 
+#[allow(clippy::disallowed_types)] // ok because we always store source text as Arc<str>
+type ArcStr = std::sync::Arc<str>;
+
+#[allow(clippy::disallowed_types)]
+pub type ParsedSourceCacheRc = crate::sync::MaybeArc<ParsedSourceCache>;
+
 #[derive(Debug, Default)]
 pub struct ParsedSourceCache {
-  sources: Mutex<HashMap<ModuleSpecifier, ParsedSource>>,
+  sources: crate::sync::MaybeDashMap<Url, ParsedSource>,
 }
 
 impl ParsedSourceCache {
@@ -60,7 +61,7 @@ impl ParsedSourceCache {
   ) -> Result<ParsedSource, deno_ast::ParseDiagnostic> {
     let parser = self.as_capturing_parser();
     // this will conditionally parse because it's using a CapturingEsParser
-    parser.parse_program(ParseOptions {
+    parser.parse_program(deno_graph::ast::ParseOptions {
       specifier: &module.specifier,
       source: module.source.text.clone(),
       media_type: module.media_type,
@@ -68,11 +69,11 @@ impl ParsedSourceCache {
     })
   }
 
-  #[allow(clippy::result_large_err)]
+  #[allow(clippy::result_large_err, clippy::disallowed_types)]
   pub fn remove_or_parse_module(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
-    source: Arc<str>,
+    source: ArcStr,
     media_type: MediaType,
   ) -> Result<ParsedSource, deno_ast::ParseDiagnostic> {
     if let Some(parsed_source) = self.remove_parsed_source(specifier) {
@@ -84,7 +85,7 @@ impl ParsedSourceCache {
         return Ok(parsed_source);
       }
     }
-    let options = ParseOptions {
+    let options = deno_graph::ast::ParseOptions {
       specifier,
       source,
       media_type,
@@ -94,13 +95,13 @@ impl ParsedSourceCache {
   }
 
   /// Frees the parsed source from memory.
-  pub fn free(&self, specifier: &ModuleSpecifier) {
+  pub fn free(&self, specifier: &Url) {
-    self.sources.lock().remove(specifier);
+    self.sources.remove(specifier);
   }
 
   /// Fress all parsed sources from memory.
   pub fn free_all(&self) {
-    self.sources.lock().clear();
+    self.sources.clear();
   }
 
   /// Creates a parser that will reuse a ParsedSource from the store
@@ -109,9 +110,9 @@ impl ParsedSourceCache {
     CapturingEsParser::new(None, self)
   }
 
-  #[cfg(test)]
+  #[allow(clippy::len_without_is_empty)]
   pub fn len(&self) -> usize {
-    self.sources.lock().len()
+    self.sources.len()
   }
 }
 
@@ -120,43 +121,37 @@ impl ParsedSourceCache {
 /// and in LSP settings the concurrency will be enforced
 /// at a higher level to ensure this will have the latest
 /// parsed source.
-impl deno_graph::ast::ParsedSourceStore for ParsedSourceCache {
+impl ParsedSourceStore for ParsedSourceCache {
   fn set_parsed_source(
     &self,
-    specifier: ModuleSpecifier,
+    specifier: Url,
     parsed_source: ParsedSource,
   ) -> Option<ParsedSource> {
-    self.sources.lock().insert(specifier, parsed_source)
+    self.sources.insert(specifier, parsed_source)
   }
 
-  fn get_parsed_source(
+  fn get_parsed_source(&self, specifier: &Url) -> Option<ParsedSource> {
-    &self,
+    self.sources.get(specifier).map(|p| p.clone())
-    specifier: &ModuleSpecifier,
-  ) -> Option<ParsedSource> {
-    self.sources.lock().get(specifier).cloned()
   }
 
-  fn remove_parsed_source(
+  fn remove_parsed_source(&self, specifier: &Url) -> Option<ParsedSource> {
-    &self,
+    self.sources.remove(specifier).map(|(_, p)| p)
-    specifier: &ModuleSpecifier,
-  ) -> Option<ParsedSource> {
-    self.sources.lock().remove(specifier)
   }
 
   fn get_scope_analysis_parsed_source(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
   ) -> Option<ParsedSource> {
-    let mut sources = self.sources.lock();
+    {
-    let parsed_source = sources.get(specifier)?;
+      let parsed_source = self.sources.get(specifier)?;
       if parsed_source.has_scope_analysis() {
-      Some(parsed_source.clone())
+        return Some(parsed_source.clone());
-    } else {
+      }
+    }
     // upgrade to have scope analysis
-      let parsed_source = sources.remove(specifier).unwrap();
+    let (specifier, parsed_source) = self.sources.remove(specifier)?;
     let parsed_source = parsed_source.into_with_scope_analysis();
-      sources.insert(specifier.clone(), parsed_source.clone());
+    self.sources.insert(specifier, parsed_source.clone());
     Some(parsed_source)
   }
-  }
 }

libs/resolver/emit.rs

@@ -1,7 +1,9 @@
 // Copyright 2018-2025 the Deno authors. MIT license.
 
-use std::sync::Arc;
+use std::hash::Hash;
+use std::hash::Hasher;
 
+use anyhow::Error as AnyError;
 use deno_ast::EmittedSourceText;
 use deno_ast::ModuleKind;
 use deno_ast::SourceMapOption;
@@ -10,38 +12,51 @@ use deno_ast::SourceRanged;
 use deno_ast::SourceRangedForSpanned;
 use deno_ast::TranspileModuleOptions;
 use deno_ast::TranspileResult;
-use deno_core::error::AnyError;
-use deno_core::error::CoreError;
-use deno_core::futures::stream::FuturesUnordered;
-use deno_core::futures::FutureExt;
-use deno_core::futures::StreamExt;
-use deno_core::ModuleSpecifier;
 use deno_error::JsErrorBox;
 use deno_graph::MediaType;
 use deno_graph::Module;
 use deno_graph::ModuleGraph;
-use deno_lib::util::hash::FastInsecureHasher;
+use futures::stream::FuturesUnordered;
-use deno_resolver::deno_json::CompilerOptionsResolver;
+use futures::FutureExt;
-use deno_resolver::deno_json::TranspileAndEmitOptions;
+use futures::StreamExt;
+use node_resolver::InNpmPackageChecker;
+use url::Url;
 
-use crate::cache::EmitCache;
+use crate::cache::EmitCacheRc;
+use crate::cache::EmitCacheSys;
 use crate::cache::ParsedSourceCache;
-use crate::resolver::CliCjsTracker;
+use crate::cache::ParsedSourceCacheRc;
+use crate::cjs::CjsTrackerRc;
+use crate::deno_json::CompilerOptionsResolverRc;
+use crate::deno_json::TranspileAndEmitOptions;
+
+#[allow(clippy::disallowed_types)] // ok because we always store source text as Arc<str>
+type ArcStr = std::sync::Arc<str>;
+
+#[allow(clippy::disallowed_types)]
+pub type EmitterRc<TInNpmPackageChecker, TSys> =
+  crate::sync::MaybeArc<Emitter<TInNpmPackageChecker, TSys>>;
+
+#[sys_traits::auto_impl]
+pub trait EmitterSys: EmitCacheSys {}
 
 #[derive(Debug)]
-pub struct Emitter {
+pub struct Emitter<TInNpmPackageChecker: InNpmPackageChecker, TSys: EmitterSys>
-  cjs_tracker: Arc<CliCjsTracker>,
+{
-  emit_cache: Arc<EmitCache>,
+  cjs_tracker: CjsTrackerRc<TInNpmPackageChecker, TSys>,
-  parsed_source_cache: Arc<ParsedSourceCache>,
+  emit_cache: EmitCacheRc<TSys>,
-  compiler_options_resolver: Arc<CompilerOptionsResolver>,
+  parsed_source_cache: ParsedSourceCacheRc,
+  compiler_options_resolver: CompilerOptionsResolverRc,
 }
 
-impl Emitter {
+impl<TInNpmPackageChecker: InNpmPackageChecker, TSys: EmitterSys>
+  Emitter<TInNpmPackageChecker, TSys>
+{
   pub fn new(
-    cjs_tracker: Arc<CliCjsTracker>,
+    cjs_tracker: CjsTrackerRc<TInNpmPackageChecker, TSys>,
-    emit_cache: Arc<EmitCache>,
+    emit_cache: EmitCacheRc<TSys>,
-    parsed_source_cache: Arc<ParsedSourceCache>,
+    parsed_source_cache: ParsedSourceCacheRc,
-    compiler_options_resolver: Arc<CompilerOptionsResolver>,
+    compiler_options_resolver: CompilerOptionsResolverRc,
   ) -> Self {
     Self {
       cjs_tracker,
@@ -91,7 +106,7 @@ impl Emitter {
   /// Gets a cached emit if the source matches the hash found in the cache.
   pub fn maybe_cached_emit(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
     module_kind: deno_ast::ModuleKind,
     source: &str,
   ) -> Result<Option<String>, AnyError> {
@@ -106,10 +121,10 @@ impl Emitter {
 
   pub async fn emit_parsed_source(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
     media_type: MediaType,
     module_kind: ModuleKind,
-    source: &Arc<str>,
+    source: &ArcStr,
   ) -> Result<String, EmitParsedSourceHelperError> {
     let transpile_and_emit_options = self
       .compiler_options_resolver
@@ -127,11 +142,12 @@ impl Emitter {
       PreEmitResult::NotCached { source_hash } => {
         let parsed_source_cache = self.parsed_source_cache.clone();
         let transpile_and_emit_options = transpile_and_emit_options.clone();
-        let transpiled_source = deno_core::unsync::spawn_blocking({
+        #[cfg(feature = "sync")]
+        let transpiled_source = crate::rt::spawn_blocking({
           let specifier = specifier.clone();
           let source = source.clone();
           move || {
-            EmitParsedSourceHelper::transpile(
+            transpile(
               &parsed_source_cache,
               &specifier,
               media_type,
@@ -145,6 +161,17 @@ impl Emitter {
         })
         .await
         .unwrap()?;
+        #[cfg(not(feature = "sync"))]
+        let transpiled_source = transpile(
+          &parsed_source_cache,
+          &specifier,
+          media_type,
+          module_kind,
+          source.clone(),
+          &transpile_and_emit_options.transpile,
+          &transpile_and_emit_options.emit,
+        )?
+        .text;
         helper.post_emit_parsed_source(
           specifier,
           &transpiled_source,
@@ -158,10 +185,10 @@ impl Emitter {
   #[allow(clippy::result_large_err)]
   pub fn emit_parsed_source_sync(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
     media_type: MediaType,
     module_kind: deno_ast::ModuleKind,
-    source: &Arc<str>,
+    source: &ArcStr,
   ) -> Result<String, EmitParsedSourceHelperError> {
     let transpile_and_emit_options = self
       .compiler_options_resolver
@@ -177,7 +204,7 @@ impl Emitter {
     ) {
       PreEmitResult::Cached(emitted_text) => Ok(emitted_text),
       PreEmitResult::NotCached { source_hash } => {
-        let transpiled_source = EmitParsedSourceHelper::transpile(
+        let transpiled_source = transpile(
           &self.parsed_source_cache,
           specifier,
           media_type,
@@ -199,10 +226,10 @@ impl Emitter {
 
   pub fn emit_parsed_source_for_deno_compile(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
     media_type: MediaType,
     module_kind: deno_ast::ModuleKind,
-    source: &Arc<str>,
+    source: &ArcStr,
   ) -> Result<(String, String), AnyError> {
     let transpile_and_emit_options = self
       .compiler_options_resolver
@@ -214,7 +241,7 @@ impl Emitter {
     // strip off the path to have more deterministic builds as we don't care
     // about the source name because we manually provide the source map to v8
     emit_options.source_map_base = Some(deno_path_util::url_parent(specifier));
-    let source = EmitParsedSourceHelper::transpile(
+    let source = transpile(
       &self.parsed_source_cache,
       specifier,
       media_type,
@@ -227,22 +254,19 @@ impl Emitter {
   }
 
   /// Expects a file URL, panics otherwise.
-  pub async fn load_and_emit_for_hmr(
+  pub fn emit_for_hmr(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
-  ) -> Result<String, CoreError> {
+    source_code: String,
+  ) -> Result<String, JsErrorBox> {
     let media_type = MediaType::from_specifier(specifier);
-    let source_code = tokio::fs::read_to_string(
-      ModuleSpecifier::to_file_path(specifier).unwrap(),
-    )
-    .await?;
     match media_type {
       MediaType::TypeScript
       | MediaType::Mts
       | MediaType::Cts
       | MediaType::Jsx
       | MediaType::Tsx => {
-        let source_arc: Arc<str> = source_code.into();
+        let source_arc: ArcStr = source_code.into();
         let parsed_source = self
           .parsed_source_cache
           .remove_or_parse_module(specifier, source_arc, media_type)
@@ -306,11 +330,11 @@ impl Emitter {
     transpile_and_emit: &TranspileAndEmitOptions,
     source_text: &str,
   ) -> u64 {
-    FastInsecureHasher::new_without_deno_version() // stored in the transpile_and_emit_options_hash
+    let mut hasher = twox_hash::XxHash64::default();
-      .write_str(source_text)
+    source_text.hash(&mut hasher);
-      .write_u64(transpile_and_emit.pre_computed_hash)
+    transpile_and_emit.pre_computed_hash.hash(&mut hasher);
-      .write_hashable(module_kind)
+    module_kind.hash(&mut hasher);
-      .finish()
+    hasher.finish()
   }
 }
 
@@ -338,15 +362,21 @@ pub enum EmitParsedSourceHelperError {
 }
 
 /// Helper to share code between async and sync emit_parsed_source methods.
-struct EmitParsedSourceHelper<'a>(&'a Emitter);
+struct EmitParsedSourceHelper<
+  'a,
+  TInNpmPackageChecker: InNpmPackageChecker,
+  TSys: EmitterSys,
+>(&'a Emitter<TInNpmPackageChecker, TSys>);
 
-impl EmitParsedSourceHelper<'_> {
+impl<TInNpmPackageChecker: InNpmPackageChecker, TSys: EmitterSys>
+  EmitParsedSourceHelper<'_, TInNpmPackageChecker, TSys>
+{
   pub fn pre_emit_parsed_source(
     &self,
-    specifier: &ModuleSpecifier,
+    specifier: &Url,
     module_kind: deno_ast::ModuleKind,
     transpile_and_emit_options: &TranspileAndEmitOptions,
-    source: &Arc<str>,
+    source: &ArcStr,
   ) -> PreEmitResult {
     let source_hash =
       self
@@ -362,16 +392,30 @@ impl EmitParsedSourceHelper<'_> {
     }
   }
 
-  #[allow(clippy::result_large_err)]
+  pub fn post_emit_parsed_source(
-  pub fn transpile(
+    &self,
+    specifier: &Url,
+    transpiled_source: &str,
+    source_hash: u64,
+  ) {
+    self.0.emit_cache.set_emit_code(
+      specifier,
+      source_hash,
+      transpiled_source.as_bytes(),
+    );
+  }
+}
+
+#[allow(clippy::result_large_err)]
+fn transpile(
   parsed_source_cache: &ParsedSourceCache,
-    specifier: &ModuleSpecifier,
+  specifier: &Url,
   media_type: MediaType,
   module_kind: deno_ast::ModuleKind,
-    source: Arc<str>,
+  source: ArcStr,
   transpile_options: &deno_ast::TranspileOptions,
   emit_options: &deno_ast::EmitOptions,
-  ) -> Result<EmittedSourceText, EmitParsedSourceHelperError> {
+) -> Result<EmittedSourceText, EmitParsedSourceHelperError> {
   // nothing else needs the parsed source at this point, so remove from
   // the cache in order to not transpile owned
   let parsed_source = parsed_source_cache
@@ -392,20 +436,6 @@ impl EmitParsedSourceHelper<'_> {
     }
   };
   Ok(transpiled_source)
-  }
-
-  pub fn post_emit_parsed_source(
-    &self,
-    specifier: &ModuleSpecifier,
-    transpiled_source: &str,
-    source_hash: u64,
-  ) {
-    self.0.emit_cache.set_emit_code(
-      specifier,
-      source_hash,
-      transpiled_source.as_bytes(),
-    );
-  }
 }
 
 // todo(dsherret): this is a temporary measure until we have swc erroring for this

libs/resolver/factory.rs

@@ -31,13 +31,16 @@ use node_resolver::NodeResolverOptions;
 use node_resolver::NodeResolverRc;
 use node_resolver::PackageJsonResolver;
 use node_resolver::PackageJsonResolverRc;
-use sys_traits::EnvCacheDir;
-use sys_traits::EnvCurrentDir;
-use sys_traits::EnvHomeDir;
-use sys_traits::EnvVar;
 use thiserror::Error;
 use url::Url;
 
+use crate::cache::DenoDir;
+use crate::cache::DenoDirOptions;
+use crate::cache::DenoDirProvider;
+use crate::cache::DenoDirProviderRc;
+use crate::cache::DenoDirSys;
+use crate::cache::EmitCache;
+use crate::cache::EmitCacheRc;
 use crate::cjs::CjsTracker;
 use crate::cjs::CjsTrackerRc;
 use crate::cjs::IsCjsResolutionMode;
@@ -163,49 +166,6 @@ pub trait SpecifiedImportMapProvider:
   ) -> Result<Option<crate::workspace::SpecifiedImportMap>, anyhow::Error>;
 }
 
-#[derive(Debug, Clone)]
-pub struct DenoDirPathProviderOptions {
-  pub maybe_custom_root: Option<PathBuf>,
-}
-
-#[allow(clippy::disallowed_types)]
-pub type DenoDirPathProviderRc<TSys> =
-  crate::sync::MaybeArc<DenoDirPathProvider<TSys>>;
-
-#[sys_traits::auto_impl]
-pub trait DenoDirPathProviderSys:
-  EnvCacheDir + EnvHomeDir + EnvVar + EnvCurrentDir
-{
-}
-
-/// Lazily creates the deno dir which might be useful in scenarios
-/// where functionality wants to continue if the DENO_DIR can't be created.
-#[derive(Debug)]
-pub struct DenoDirPathProvider<TSys: DenoDirPathProviderSys> {
-  sys: TSys,
-  options: DenoDirPathProviderOptions,
-  deno_dir: Deferred<PathBuf>,
-}
-
-impl<TSys: DenoDirPathProviderSys> DenoDirPathProvider<TSys> {
-  pub fn new(sys: TSys, options: DenoDirPathProviderOptions) -> Self {
-    Self {
-      sys,
-      options,
-      deno_dir: Default::default(),
-    }
-  }
-
-  pub fn get_or_create(&self) -> Result<&PathBuf, DenoDirResolutionError> {
-    self.deno_dir.get_or_try_init(|| {
-      deno_cache_dir::resolve_deno_dir(
-        &self.sys,
-        self.options.maybe_custom_root.clone(),
-      )
-    })
-  }
-}
-
 #[derive(Debug)]
 pub struct NpmProcessStateOptions {
   pub node_modules_dir: Option<Cow<'static, str>>,
@@ -213,15 +173,18 @@ pub struct NpmProcessStateOptions {
 }
 
 #[derive(Debug, Default)]
-pub struct WorkspaceFactoryOptions<TSys: WorkspaceFactorySys> {
+pub struct WorkspaceFactoryOptions {
   pub additional_config_file_names: &'static [&'static str],
   pub config_discovery: ConfigDiscoveryOption,
-  pub deno_dir_path_provider: Option<DenoDirPathProviderRc<TSys>>,
   pub is_package_manager_subcommand: bool,
+  /// Version to use for the emit cache. This is something that
+  /// should change when the version of the underlying emit changes.
+  pub emit_cache_version: Cow<'static, str>,
   pub frozen_lockfile: Option<bool>,
   pub lock_arg: Option<String>,
   /// Whether to skip writing to the lockfile.
   pub lockfile_skip_write: bool,
+  pub maybe_custom_deno_dir_root: Option<PathBuf>,
   pub node_modules_dir: Option<NodeModulesDirMode>,
   pub no_lock: bool,
   pub no_npm: bool,
@@ -238,7 +201,7 @@ pub type WorkspaceFactoryRc<TSys> =
 
 #[sys_traits::auto_impl]
 pub trait WorkspaceFactorySys:
-  DenoDirPathProviderSys
+  DenoDirSys
   + crate::lockfile::LockfileSys
   + crate::npm::NpmResolverSys
   + deno_cache_dir::GlobalHttpCacheSys
@@ -248,7 +211,8 @@ pub trait WorkspaceFactorySys:
 
 pub struct WorkspaceFactory<TSys: WorkspaceFactorySys> {
   sys: TSys,
-  deno_dir_path: DenoDirPathProviderRc<TSys>,
+  deno_dir_provider: Deferred<DenoDirProviderRc<TSys>>,
+  emit_cache: Deferred<EmitCacheRc<TSys>>,
   global_http_cache: Deferred<GlobalHttpCacheRc<TSys>>,
   http_cache: Deferred<GlobalOrLocalHttpCache<TSys>>,
   jsr_url: Deferred<Url>,
@@ -263,27 +227,19 @@ pub struct WorkspaceFactory<TSys: WorkspaceFactorySys> {
     Deferred<WorkspaceExternalImportMapLoaderRc<TSys>>,
   workspace_npm_link_packages: Deferred<WorkspaceNpmLinkPackagesRc>,
   initial_cwd: PathBuf,
-  options: WorkspaceFactoryOptions<TSys>,
+  options: WorkspaceFactoryOptions,
 }
 
 impl<TSys: WorkspaceFactorySys> WorkspaceFactory<TSys> {
   pub fn new(
     sys: TSys,
     initial_cwd: PathBuf,
-    mut options: WorkspaceFactoryOptions<TSys>,
+    options: WorkspaceFactoryOptions,
   ) -> Self {
     Self {
-      deno_dir_path: options.deno_dir_path_provider.take().unwrap_or_else(
-        || {
-          new_rc(DenoDirPathProvider::new(
-            sys.clone(),
-            DenoDirPathProviderOptions {
-              maybe_custom_root: None,
-            },
-          ))
-        },
-      ),
       sys,
+      deno_dir_provider: Default::default(),
+      emit_cache: Default::default(),
       global_http_cache: Default::default(),
       http_cache: Default::default(),
       jsr_url: Default::default(),
@@ -308,6 +264,27 @@ impl<TSys: WorkspaceFactorySys> WorkspaceFactory<TSys> {
     self.workspace_directory = Deferred::from(workspace_directory);
   }
 
+  pub fn deno_dir_provider(&self) -> &DenoDirProviderRc<TSys> {
+    self.deno_dir_provider.get_or_init(|| {
+      new_rc(DenoDirProvider::new(
+        self.sys.clone(),
+        DenoDirOptions {
+          maybe_custom_root: self.options.maybe_custom_deno_dir_root.clone(),
+        },
+      ))
+    })
+  }
+
+  pub fn emit_cache(&self) -> Result<&EmitCacheRc<TSys>, anyhow::Error> {
+    self.emit_cache.get_or_try_init(|| {
+      Ok(new_rc(EmitCache::new(
+        &self.sys,
+        self.deno_dir()?.gen_cache.clone(),
+        self.options.emit_cache_version.clone(),
+      )))
+    })
+  }
+
   pub fn jsr_url(&self) -> &Url {
     self.jsr_url.get_or_init(|| resolve_jsr_url(&self.sys))
   }
@@ -348,7 +325,8 @@ impl<TSys: WorkspaceFactorySys> WorkspaceFactory<TSys> {
           let workspace = &self.workspace_directory()?.workspace;
 
           if let Some(pkg_json) = workspace.root_pkg_json() {
-            if let Ok(deno_dir) = self.deno_dir_path() {
+            if let Ok(deno_dir) = self.deno_dir() {
+              let deno_dir = &deno_dir.root;
               // `deno_dir` can be symlink in macOS or on the CI
               if let Ok(deno_dir) =
                 canonicalize_path_maybe_not_exists(&self.sys, deno_dir)
@@ -431,15 +409,15 @@ impl<TSys: WorkspaceFactorySys> WorkspaceFactory<TSys> {
       .map(|p| p.as_deref())
   }
 
-  pub fn deno_dir_path(&self) -> Result<&PathBuf, DenoDirResolutionError> {
+  pub fn deno_dir(&self) -> Result<&DenoDir<TSys>, DenoDirResolutionError> {
-    self.deno_dir_path.get_or_create()
+    self.deno_dir_provider().get_or_create()
   }
 
   pub fn global_http_cache(
     &self,
   ) -> Result<&GlobalHttpCacheRc<TSys>, DenoDirResolutionError> {
     self.global_http_cache.get_or_try_init(|| {
-      let global_cache_dir = self.deno_dir_path()?.join("remote");
+      let global_cache_dir = self.deno_dir()?.remote_folder_path();
       let global_http_cache = new_rc(deno_cache_dir::GlobalHttpCache::new(
         self.sys.clone(),
         global_cache_dir,
@@ -514,7 +492,7 @@ impl<TSys: WorkspaceFactorySys> WorkspaceFactory<TSys> {
     &self,
   ) -> Result<&NpmCacheDirRc, NpmCacheDirCreateError> {
     self.npm_cache_dir.get_or_try_init(|| {
-      let npm_cache_dir = self.deno_dir_path()?.join("npm");
+      let npm_cache_dir = self.deno_dir()?.npm_folder_path();
       Ok(new_rc(NpmCacheDir::new(
         &self.sys,
         npm_cache_dir,
@@ -683,6 +661,8 @@ pub struct ResolverFactory<TSys: WorkspaceFactorySys> {
   #[cfg(feature = "graph")]
   deno_resolver:
     async_once_cell::OnceCell<crate::graph::DefaultDenoResolverRc<TSys>>,
+  #[cfg(feature = "deno_ast")]
+  emitter: Deferred<crate::emit::EmitterRc<DenoInNpmPackageChecker, TSys>>,
   #[cfg(feature = "graph")]
   found_package_json_dep_flag: crate::graph::FoundPackageJsonDepFlagRc,
   in_npm_package_checker: Deferred<DenoInNpmPackageChecker>,
@@ -704,6 +684,8 @@ pub struct ResolverFactory<TSys: WorkspaceFactorySys> {
   >,
   npm_resolver: Deferred<NpmResolver<TSys>>,
   npm_resolution: NpmResolutionCellRc,
+  #[cfg(feature = "deno_ast")]
+  parsed_source_cache: crate::cache::ParsedSourceCacheRc,
   pkg_json_resolver: Deferred<PackageJsonResolverRc<TSys>>,
   raw_deno_resolver: async_once_cell::OnceCell<DefaultRawDenoResolverRc<TSys>>,
   workspace_factory: WorkspaceFactoryRc<TSys>,
@@ -725,6 +707,8 @@ impl<TSys: WorkspaceFactorySys> ResolverFactory<TSys> {
       raw_deno_resolver: Default::default(),
       #[cfg(feature = "graph")]
       deno_resolver: Default::default(),
+      #[cfg(feature = "deno_ast")]
+      emitter: Default::default(),
       #[cfg(feature = "graph")]
       found_package_json_dep_flag: Default::default(),
       in_npm_package_checker: Default::default(),
@@ -732,6 +716,8 @@ impl<TSys: WorkspaceFactorySys> ResolverFactory<TSys> {
       npm_req_resolver: Default::default(),
       npm_resolution: Default::default(),
       npm_resolver: Default::default(),
+      #[cfg(feature = "deno_ast")]
+      parsed_source_cache: Default::default(),
       pkg_json_resolver: Default::default(),
       workspace_factory,
       workspace_resolver: Default::default(),
@@ -798,6 +784,23 @@ impl<TSys: WorkspaceFactorySys> ResolverFactory<TSys> {
     })
   }
 
+  #[cfg(feature = "deno_ast")]
+  pub fn emitter(
+    &self,
+  ) -> Result<
+    &crate::emit::EmitterRc<DenoInNpmPackageChecker, TSys>,
+    anyhow::Error,
+  > {
+    self.emitter.get_or_try_init(|| {
+      Ok(new_rc(crate::emit::Emitter::new(
+        self.cjs_tracker()?.clone(),
+        self.workspace_factory.emit_cache()?.clone(),
+        self.parsed_source_cache().clone(),
+        self.compiler_options_resolver()?.clone(),
+      )))
+    })
+  }
+
   #[cfg(feature = "graph")]
   pub fn found_package_json_dep_flag(
     &self,
@@ -936,6 +939,11 @@ impl<TSys: WorkspaceFactorySys> ResolverFactory<TSys> {
     })
   }
 
+  #[cfg(feature = "deno_ast")]
+  pub fn parsed_source_cache(&self) -> &crate::cache::ParsedSourceCacheRc {
+    &self.parsed_source_cache
+  }
+
   pub fn workspace_factory(&self) -> &WorkspaceFactoryRc<TSys> {
     &self.workspace_factory
   }

libs/resolver/lib.rs

@@ -41,10 +41,13 @@ use crate::workspace::MappedResolutionError;
 use crate::workspace::WorkspaceResolvePkgJsonFolderError;
 use crate::workspace::WorkspaceResolver;
 
+pub mod cache;
 pub mod cjs;
 pub mod collections;
 pub mod deno_json;
 pub mod display;
+#[cfg(feature = "deno_ast")]
+pub mod emit;
 pub mod factory;
 #[cfg(feature = "graph")]
 pub mod file_fetcher;
@@ -54,6 +57,8 @@ pub mod import_map;
 pub mod lockfile;
 pub mod npm;
 pub mod npmrc;
+#[cfg(all(feature = "deno_ast", feature = "sync"))]
+mod rt;
 mod sync;
 pub mod workspace;
 

libs/resolver/rt.rs

@@ -0,0 +1,24 @@
+// Copyright 2018-2025 the Deno authors. MIT license.
+
+#[cfg(not(target_arch = "wasm32"))]
+use deno_unsync::JoinHandle;
+#[cfg(target_arch = "wasm32")]
+pub type JoinHandle<T> =
+  std::future::Ready<Result<T, std::convert::Infallible>>;
+
+pub fn spawn_blocking<
+  F: (FnOnce() -> R) + Send + 'static,
+  R: Send + 'static,
+>(
+  f: F,
+) -> JoinHandle<R> {
+  #[cfg(target_arch = "wasm32")]
+  {
+    let result = f();
+    std::future::ready(Ok(result))
+  }
+  #[cfg(not(target_arch = "wasm32"))]
+  {
+    deno_unsync::spawn_blocking(f)
+  }
+}

libs/resolver/sync.rs

@@ -58,6 +58,19 @@ mod inner {
       let mut inner = self.0.borrow_mut();
       inner.insert(key, value)
     }
+
+    pub fn clear(&self) {
+      self.0.borrow_mut().clear();
+    }
+
+    pub fn remove(&self, key: &K) -> Option<(K, V)> {
+      self.0.borrow_mut().remove_entry(key)
+    }
+
+    #[allow(clippy::len_without_is_empty)]
+    pub fn len(&self) -> usize {
+      self.0.borrow().len()
+    }
   }
 
   // Wrapper struct that exposes a subset of `DashMap` API.