perf(node): put pkg json into an `Rc` (#23156)

Was doing a bit of debugging on why some stuff is not working in a
personal project and ran a quick debug profile and saw it cloning the
pkg json a lot. We should put this in an Rc.

5 files changed, 24 insertions, 17 deletions

diff --git a/cli/npm/byonm.rs b/cli/npm/byonm.rs
index d17be0e95..1e61ce885 100644
--- a/cli/npm/byonm.rs
+++ b/cli/npm/byonm.rs
@@ -3,6 +3,7 @@
 use std::borrow::Cow;
 use std::path::Path;
 use std::path::PathBuf;
+use std::rc::Rc;
 use std::sync::Arc;
 
 use deno_ast::ModuleSpecifier;
@@ -52,7 +53,7 @@ impl ByonmCliNpmResolver {
     &self,
     dep_name: &str,
     referrer: &ModuleSpecifier,
-  ) -> Option<PackageJson> {
+  ) -> Option<Rc<PackageJson>> {
     let referrer_path = referrer.to_file_path().ok()?;
     let mut current_folder = referrer_path.parent()?;
     loop {
diff --git a/cli/resolver.rs b/cli/resolver.rs
index 6594bf2d4..fc326e1b1 100644
--- a/cli/resolver.rs
+++ b/cli/resolver.rs
@@ -36,6 +36,7 @@ use std::collections::HashMap;
 use std::collections::HashSet;
 use std::path::Path;
 use std::path::PathBuf;
+use std::rc::Rc;
 use std::sync::Arc;
 
 use crate::args::package_json::PackageJsonDeps;
@@ -98,7 +99,7 @@ impl CliNodeResolver {
     &self,
     referrer: &ModuleSpecifier,
     permissions: &dyn NodePermissions,
-  ) -> Result<Option<PackageJson>, AnyError> {
+  ) -> Result<Option<Rc<PackageJson>>, AnyError> {
     self
       .node_resolver
       .get_closest_package_json(referrer, permissions)
diff --git a/ext/node/ops/require.rs b/ext/node/ops/require.rs
index d6771c668..426c41995 100644
--- a/ext/node/ops/require.rs
+++ b/ext/node/ops/require.rs
@@ -542,10 +542,12 @@ where
   )?;
   let node_resolver = state.borrow::<Rc<NodeResolver>>();
   let permissions = state.borrow::<P>();
-  node_resolver.get_closest_package_json(
-    &Url::from_file_path(filename).unwrap(),
-    permissions,
-  )
+  node_resolver
+    .get_closest_package_json(
+      &Url::from_file_path(filename).unwrap(),
+      permissions,
+    )
+    .map(|maybe_pkg| maybe_pkg.map(|pkg| (*pkg).clone()))
 }
 
 #[op2]
@@ -562,6 +564,7 @@ where
   let package_json_path = PathBuf::from(package_json_path);
   node_resolver
     .load_package_json(permissions, package_json_path)
+    .map(|pkg| (*pkg).clone())
     .ok()
 }
 
diff --git a/ext/node/package_json.rs b/ext/node/package_json.rs
index 9ac3a0969..77352ae1d 100644
--- a/ext/node/package_json.rs
+++ b/ext/node/package_json.rs
@@ -18,9 +18,10 @@ use std::cell::RefCell;
 use std::collections::HashMap;
 use std::io::ErrorKind;
 use std::path::PathBuf;
+use std::rc::Rc;
 
 thread_local! {
-  static CACHE: RefCell<HashMap<PathBuf, PackageJson>> = RefCell::new(HashMap::new());
+  static CACHE: RefCell<HashMap<PathBuf, Rc<PackageJson>>> = RefCell::new(HashMap::new());
 }
 
 #[derive(Clone, Debug, Serialize)]
@@ -66,7 +67,7 @@ impl PackageJson {
     resolver: &dyn NpmResolver,
     permissions: &dyn NodePermissions,
     path: PathBuf,
-  ) -> Result<PackageJson, AnyError> {
+  ) -> Result<Rc<PackageJson>, AnyError> {
     resolver.ensure_read_permission(permissions, &path)?;
     Self::load_skip_read_permission(fs, path)
   }
@@ -74,7 +75,7 @@ impl PackageJson {
   pub fn load_skip_read_permission(
     fs: &dyn deno_fs::FileSystem,
     path: PathBuf,
-  ) -> Result<PackageJson, AnyError> {
+  ) -> Result<Rc<PackageJson>, AnyError> {
     assert!(path.is_absolute());
 
     if CACHE.with(|cache| cache.borrow().contains_key(&path)) {
@@ -84,7 +85,7 @@ impl PackageJson {
     let source = match fs.read_text_file_sync(&path) {
       Ok(source) => source,
       Err(err) if err.kind() == ErrorKind::NotFound => {
-        return Ok(PackageJson::empty(path));
+        return Ok(Rc::new(PackageJson::empty(path)));
       }
       Err(err) => bail!(
         "Error loading package.json at {}. {:#}",
@@ -93,7 +94,7 @@ impl PackageJson {
       ),
     };
 
-    let package_json = Self::load_from_string(path, source)?;
+    let package_json = Rc::new(Self::load_from_string(path, source)?);
     CACHE.with(|cache| {
       cache
         .borrow_mut()
diff --git a/ext/node/resolution.rs b/ext/node/resolution.rs
index 50c4e2bb5..37598810d 100644
--- a/ext/node/resolution.rs
+++ b/ext/node/resolution.rs
@@ -4,6 +4,7 @@ use std::borrow::Cow;
 use std::collections::HashMap;
 use std::path::Path;
 use std::path::PathBuf;
+use std::rc::Rc;
 
 use deno_core::anyhow::bail;
 use deno_core::anyhow::Context;
@@ -252,7 +253,7 @@ impl NodeResolver {
         specifier,
         referrer,
         NodeModuleKind::Esm,
-        pkg_config.as_ref(),
+        pkg_config.as_deref(),
         conditions,
         mode,
         permissions,
@@ -399,7 +400,7 @@ impl NodeResolver {
     let package_json = self
       .load_package_json(&AllowAllNodePermissions, package_json_path.clone())?;
 
-    Ok(match package_json.bin {
+    Ok(match &package_json.bin {
       Some(Value::String(_)) => {
         let Some(name) = &package_json.name else {
           bail!("'{}' did not have a name", package_json_path.display());
@@ -407,7 +408,7 @@ impl NodeResolver {
         vec![name.to_string()]
       }
       Some(Value::Object(o)) => {
-        o.into_iter().map(|(key, _)| key).collect::<Vec<_>>()
+        o.iter().map(|(key, _)| key.clone()).collect::<Vec<_>>()
       }
       _ => Vec::new(),
     })
@@ -1164,7 +1165,7 @@ impl NodeResolver {
     &self,
     url: &ModuleSpecifier,
     permissions: &dyn NodePermissions,
-  ) -> Result<Option<PackageJson>, AnyError> {
+  ) -> Result<Option<Rc<PackageJson>>, AnyError> {
     let Ok(file_path) = url.to_file_path() else {
       return Ok(None);
     };
@@ -1175,7 +1176,7 @@ impl NodeResolver {
     &self,
     file_path: &Path,
     permissions: &dyn NodePermissions,
-  ) -> Result<Option<PackageJson>, AnyError> {
+  ) -> Result<Option<Rc<PackageJson>>, AnyError> {
     let Some(package_json_path) =
       self.get_closest_package_json_path(file_path)?
     else {
@@ -1213,7 +1214,7 @@ impl NodeResolver {
     &self,
     permissions: &dyn NodePermissions,
     package_json_path: PathBuf,
-  ) -> Result<PackageJson, AnyError> {
+  ) -> Result<Rc<PackageJson>, AnyError> {
     PackageJson::load(
       &*self.fs,
       &*self.npm_resolver,