feat(npm): add flag for creating and resolving npm packages to a local node_modules folder (#15971)

1 files changed, 21 insertions, 2 deletions

diff --git a/cli/npm/resolution.rs b/cli/npm/resolution.rs
index 4bde3b340..87fa9922f 100644
--- a/cli/npm/resolution.rs
+++ b/cli/npm/resolution.rs
@@ -2,6 +2,7 @@
 
 use std::cmp::Ordering;
 use std::collections::HashMap;
+use std::collections::HashSet;
 use std::collections::VecDeque;
 
 use deno_ast::ModuleSpecifier;
@@ -185,6 +186,26 @@ impl NpmResolutionSnapshot {
     }
   }
 
+  pub fn top_level_packages(&self) -> Vec<NpmPackageId> {
+    self
+      .package_reqs
+      .iter()
+      .map(|(req, version)| NpmPackageId {
+        name: req.name.clone(),
+        version: version.clone(),
+      })
+      .collect::<HashSet<_>>()
+      .into_iter()
+      .collect::<Vec<_>>()
+  }
+
+  pub fn package_from_id(
+    &self,
+    id: &NpmPackageId,
+  ) -> Option<&NpmResolutionPackage> {
+    self.packages.get(id)
+  }
+
   pub fn resolve_package_from_package(
     &self,
     name: &str,
@@ -471,8 +492,6 @@ impl NpmResolution {
     !self.snapshot.read().packages.is_empty()
   }
 
-  // todo(dsherret): for use in the lsp
-  #[allow(dead_code)]
   pub fn snapshot(&self) -> NpmResolutionSnapshot {
     self.snapshot.read().clone()
   }