fix: do not error for specifier with version requirement and @ symbol in path

src/jsr.rs

@@ -262,6 +262,8 @@ impl JsrDepPackageReq {
 
 #[cfg(test)]
 mod test {
+  use crate::package::PackageReqReferenceInvalidWithVersionParseError;
+
   use super::*;
 
   #[test]
@@ -290,6 +292,18 @@ mod test {
       assert_eq!(req_ref.req().version_req.to_string(), "^1.0.0");
       assert_eq!(req_ref.sub_path(), Some("mod.ts"));
     }
+    {
+      assert_eq!(
+        JsrPackageReqReference::from_str("jsr:@std/testing/bdd@1").unwrap_err(),
+        PackageReqReferenceParseError::InvalidPathWithVersion(Box::new(
+          PackageReqReferenceInvalidWithVersionParseError {
+            kind: PackageKind::Jsr,
+            current: "@std/testing/bdd@1".to_string(),
+            suggested: "@std/testing@1/bdd".to_string(),
+          }
+        )),
+      );
+    }
   }
 
   #[test]

src/npm.rs

@@ -84,7 +84,7 @@ pub fn parse_npm_version(text: &str) -> Result<Version, NpmVersionParseError> {
   .map_err(|err| NpmVersionParseError { source: err })
 }
 
-#[derive(Error, Debug, Clone, JsError)]
+#[derive(Error, Debug, Clone, JsError, PartialEq, Eq)]
 #[class(type)]
 #[error("Invalid version requirement")]
 pub struct NpmVersionReqParseError {
@@ -1374,6 +1374,20 @@ mod tests {
       )),
       _ => unreachable!(),
     }
+
+    // path with `@` shouldn't error
+    assert_eq!(
+      NpmPackageReqReference::from_str("npm:package@^5.0.0-beta.35/@some/path")
+        .unwrap(),
+      NpmPackageReqReference::new(PackageReqReference {
+        req: PackageReq {
+          name: "package".to_string(),
+          version_req: VersionReq::parse_from_specifier("^5.0.0-beta.35")
+            .unwrap(),
+        },
+        sub_path: Some("@some/path".to_string()),
+      }),
+    );
   }
 
   #[test]

src/package.rs

@@ -35,7 +35,7 @@ impl PackageKind {
   }
 }
 
-#[derive(Error, Debug, Clone, JsError)]
+#[derive(Error, Debug, Clone, JsError, PartialEq, Eq)]
 pub enum PackageReqReferenceParseError {
   #[class(type)]
   #[error("Not {} specifier", .0.scheme_with_colon())]
@@ -48,7 +48,7 @@ pub enum PackageReqReferenceParseError {
   InvalidPathWithVersion(Box<PackageReqReferenceInvalidWithVersionParseError>),
 }
 
-#[derive(Error, Debug, Clone, JsError)]
+#[derive(Error, Debug, Clone, JsError, PartialEq, Eq)]
 #[class(type)]
 #[error("Invalid package specifier '{specifier}'")]
 pub struct PackageReqReferenceInvalidParseError {
@@ -57,9 +57,9 @@ pub struct PackageReqReferenceInvalidParseError {
   pub source: PackageReqPartsParseError,
 }
 
-#[derive(Error, Debug, Clone, JsError)]
+#[derive(Error, Debug, Clone, JsError, PartialEq, Eq)]
 #[class(type)]
-#[error("Invalid package specifier '{0}{1}'. Did you mean to write '{0}{2}'?", .kind.scheme_with_colon(), current, suggested)]
+#[error("Invalid package specifier '{0}{1}'. Did you mean to write '{0}{2}'? If not, add a version requirement to the specifier.", .kind.scheme_with_colon(), current, suggested)]
 pub struct PackageReqReferenceInvalidWithVersionParseError {
   pub kind: PackageKind,
   pub current: String,
@@ -109,15 +109,17 @@ impl PackageReqReference {
     };
 
     if let Some(sub_path) = &sub_path {
-      if let Some(at_index) = sub_path.rfind('@') {
-        let (new_sub_path, version) = sub_path.split_at(at_index);
-        return Err(PackageReqReferenceParseError::InvalidPathWithVersion(
-          Box::new(PackageReqReferenceInvalidWithVersionParseError {
-            kind,
-            current: format!("{req}/{sub_path}"),
-            suggested: format!("{req}{version}/{new_sub_path}"),
-          }),
-        ));
+      if req.version_req.version_text() == "*" {
+        if let Some(at_index) = sub_path.rfind('@') {
+          let (new_sub_path, version) = sub_path.split_at(at_index);
+          return Err(PackageReqReferenceParseError::InvalidPathWithVersion(
+            Box::new(PackageReqReferenceInvalidWithVersionParseError {
+              kind,
+              current: format!("{req}/{sub_path}"),
+              suggested: format!("{req}{version}/{new_sub_path}"),
+            }),
+          ));
+        }
       }
     }
 
@@ -135,7 +137,7 @@ impl std::fmt::Display for PackageReqReference {
   }
 }
 
-#[derive(Error, Debug, Clone, JsError)]
+#[derive(Error, Debug, Clone, JsError, PartialEq, Eq)]
 pub enum PackageReqPartsParseError {
   #[class(type)]
   #[error("Did not contain a package name")]

src/specifier.rs

@@ -12,7 +12,7 @@ use crate::VersionReq;
 
 use crate::is_valid_tag;
 
-#[derive(Error, Debug, Clone, deno_error::JsError)]
+#[derive(Error, Debug, Clone, deno_error::JsError, PartialEq, Eq)]
 #[class(type)]
 #[error("Invalid specifier version requirement")]
 pub struct VersionReqSpecifierParseError {