deno/libs/package_json/lib.rs

// Copyright 2018-2025 the Deno authors. MIT license.

#![deny(clippy::print_stderr)]
#![deny(clippy::print_stdout)]
#![deny(clippy::unused_async)]
#![deny(clippy::unnecessary_wraps)]

use std::path::Path;
use std::path::PathBuf;

use boxed_error::Boxed;
use deno_error::JsError;
use deno_semver::StackString;
use deno_semver::VersionReq;
use deno_semver::VersionReqSpecifierParseError;
use deno_semver::npm::NpmVersionReqParseError;
use deno_semver::package::PackageReq;
use indexmap::IndexMap;
use serde::Serialize;
use serde_json::Map;
use serde_json::Value;
use sys_traits::FsRead;
use thiserror::Error;
use url::Url;

#[allow(clippy::disallowed_types)]
pub type PackageJsonRc = deno_maybe_sync::MaybeArc<PackageJson>;
#[allow(clippy::disallowed_types)]
pub type PackageJsonDepsRc = deno_maybe_sync::MaybeArc<PackageJsonDeps>;
#[allow(clippy::disallowed_types)]
type PackageJsonDepsRcCell = deno_maybe_sync::MaybeOnceLock<PackageJsonDepsRc>;

pub trait PackageJsonCache {
  fn get(&self, path: &Path) -> Option<PackageJsonRc>;
  fn set(&self, path: PathBuf, package_json: PackageJsonRc);
}

#[derive(Debug, Clone, JsError, PartialEq, Eq, Boxed)]
pub struct PackageJsonDepValueParseError(
  pub Box<PackageJsonDepValueParseErrorKind>,
);

#[derive(Debug, Error, Clone, JsError, PartialEq, Eq)]
pub enum PackageJsonDepValueParseErrorKind {
  #[class(inherit)]
  #[error(transparent)]
  VersionReq(#[from] NpmVersionReqParseError),
  #[class(inherit)]
  #[error(transparent)]
  JsrVersionReq(#[from] VersionReqSpecifierParseError),
  #[class(type)]
  #[error("Not implemented scheme '{scheme}'")]
  Unsupported { scheme: String },
}

#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub enum PackageJsonDepWorkspaceReq {
  /// "workspace:~"
  Tilde,

  /// "workspace:^"
  Caret,

  /// "workspace:x.y.z", "workspace:*", "workspace:^x.y.z"
  VersionReq(VersionReq),
}

#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub enum PackageJsonDepValue {
  File(String),
  Req(PackageReq),
  Workspace(PackageJsonDepWorkspaceReq),
  JsrReq(PackageReq),
}

impl PackageJsonDepValue {
  pub fn parse(
    key: &str,
    value: &str,
  ) -> Result<Self, PackageJsonDepValueParseError> {
    /// Gets the name and raw version constraint for a registry info or
    /// package.json dependency entry taking into account npm package aliases.
    fn parse_dep_entry_name_and_raw_version<'a>(
      key: &'a str,
      value: &'a str,
    ) -> (&'a str, &'a str) {
      if let Some(package_and_version) = value.strip_prefix("npm:") {
        if let Some((name, version)) = package_and_version.rsplit_once('@') {
          // if empty, then the name was scoped and there's no version
          if name.is_empty() {
            (package_and_version, "*")
          } else {
            (name, version)
          }
        } else {
          (package_and_version, "*")
        }
      } else {
        (key, value)
      }
    }

    if let Some(workspace_key) = value.strip_prefix("workspace:") {
      let workspace_req = match workspace_key {
        "~" => PackageJsonDepWorkspaceReq::Tilde,
        "^" => PackageJsonDepWorkspaceReq::Caret,
        _ => PackageJsonDepWorkspaceReq::VersionReq(
          VersionReq::parse_from_npm(workspace_key)?,
        ),
      };
      return Ok(Self::Workspace(workspace_req));
    } else if let Some(raw_jsr_req) = value.strip_prefix("jsr:") {
      let (name, version_req) =
        parse_dep_entry_name_and_raw_version(key, raw_jsr_req);
      let result = VersionReq::parse_from_specifier(version_req);
      match result {
        Ok(version_req) => {
          return Ok(Self::JsrReq(PackageReq {
            name: name.into(),
            version_req,
          }));
        }
        Err(err) => {
          return Err(
            PackageJsonDepValueParseErrorKind::JsrVersionReq(err).into_box(),
          );
        }
      }
    }
    if value.starts_with("git:")
      || value.starts_with("http:")
      || value.starts_with("https:")
    {
      return Err(
        PackageJsonDepValueParseErrorKind::Unsupported {
          scheme: value.split(':').next().unwrap().to_string(),
        }
        .into_box(),
      );
    }
    if let Some(path) = value.strip_prefix("file:") {
      return Ok(Self::File(path.to_string()));
    }
    let (name, version_req) = parse_dep_entry_name_and_raw_version(key, value);
    let result = VersionReq::parse_from_npm(version_req);
    match result {
      Ok(version_req) => Ok(Self::Req(PackageReq {
        name: name.into(),
        version_req,
      })),
      Err(err) => {
        Err(PackageJsonDepValueParseErrorKind::VersionReq(err).into_box())
      }
    }
  }
}

pub type PackageJsonDepsMap = IndexMap<
  StackString,
  Result<PackageJsonDepValue, PackageJsonDepValueParseError>,
>;

#[derive(Debug, Clone)]
pub struct PackageJsonDeps {
  pub dependencies: PackageJsonDepsMap,
  pub dev_dependencies: PackageJsonDepsMap,
}

impl PackageJsonDeps {
  /// Gets a package.json dependency entry by alias.
  pub fn get(
    &self,
    alias: &str,
  ) -> Option<&Result<PackageJsonDepValue, PackageJsonDepValueParseError>> {
    self
      .dependencies
      .get(alias)
      .or_else(|| self.dev_dependencies.get(alias))
  }
}

#[derive(Debug, Error, JsError)]
pub enum PackageJsonLoadError {
  #[class(inherit)]
  #[error("Failed reading '{}'.", .path.display())]
  Io {
    path: PathBuf,
    #[source]
    #[inherit]
    source: std::io::Error,
  },
  #[class(inherit)]
  #[error("Malformed package.json '{}'.", .path.display())]
  Deserialize {
    path: PathBuf,
    #[source]
    #[inherit]
    source: serde_json::Error,
  },
  #[error(
    "\"exports\" cannot contain some keys starting with '.' and some not.\nThe exports object must either be an object of package subpath keys\nor an object of main entry condition name keys only."
  )]
  #[class(type)]
  InvalidExports,
}

#[derive(Clone, Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct PackageJson {
  pub exports: Option<Map<String, Value>>,
  pub imports: Option<Map<String, Value>>,
  pub bin: Option<Value>,
  pub main: Option<String>,
  pub module: Option<String>,
  pub browser: Option<String>,
  pub name: Option<String>,
  pub version: Option<String>,
  #[serde(skip)]
  pub path: PathBuf,
  #[serde(rename = "type")]
  pub typ: String,
  pub types: Option<String>,
  pub types_versions: Option<Map<String, Value>>,
  pub dependencies: Option<IndexMap<String, String>>,
  pub bundle_dependencies: Option<Vec<String>>,
  pub dev_dependencies: Option<IndexMap<String, String>>,
  pub peer_dependencies: Option<IndexMap<String, String>>,
  pub peer_dependencies_meta: Option<Value>,
  pub optional_dependencies: Option<IndexMap<String, String>>,
  pub scripts: Option<IndexMap<String, String>>,
  pub workspaces: Option<Vec<String>>,
  pub os: Option<Vec<String>>,
  pub cpu: Option<Vec<String>>,
  #[serde(skip_serializing)]
  resolved_deps: PackageJsonDepsRcCell,
}

impl PackageJson {
  pub fn load_from_path(
    sys: &impl FsRead,
    maybe_cache: Option<&dyn PackageJsonCache>,
    path: &Path,
  ) -> Result<PackageJsonRc, PackageJsonLoadError> {
    match maybe_cache.and_then(|c| c.get(path)) {
      Some(item) => Ok(item),
      _ => match sys.fs_read_to_string_lossy(path) {
        Ok(file_text) => {
          let pkg_json =
            PackageJson::load_from_string(path.to_path_buf(), &file_text)?;
          let pkg_json = deno_maybe_sync::new_rc(pkg_json);
          if let Some(cache) = maybe_cache {
            cache.set(path.to_path_buf(), pkg_json.clone());
          }
          Ok(pkg_json)
        }
        Err(err) => Err(PackageJsonLoadError::Io {
          path: path.to_path_buf(),
          source: err,
        }),
      },
    }
  }

  pub fn load_from_string(
    path: PathBuf,
    source: &str,
  ) -> Result<PackageJson, PackageJsonLoadError> {
    if source.trim().is_empty() {
      return Ok(PackageJson {
        path,
        main: None,
        name: None,
        version: None,
        module: None,
        browser: None,
        typ: "none".to_string(),
        types: None,
        types_versions: None,
        exports: None,
        imports: None,
        bin: None,
        dependencies: None,
        bundle_dependencies: None,
        dev_dependencies: None,
        peer_dependencies: None,
        peer_dependencies_meta: None,
        optional_dependencies: None,
        scripts: None,
        workspaces: None,
        os: None,
        cpu: None,
        resolved_deps: Default::default(),
      });
    }

    let package_json: Value = serde_json::from_str(source).map_err(|err| {
      PackageJsonLoadError::Deserialize {
        path: path.clone(),
        source: err,
      }
    })?;
    Self::load_from_value(path, package_json)
  }

  pub fn load_from_value(
    path: PathBuf,
    package_json: serde_json::Value,
  ) -> Result<PackageJson, PackageJsonLoadError> {
    fn parse_string_map(
      value: serde_json::Value,
    ) -> Option<IndexMap<String, String>> {
      if let Value::Object(map) = value {
        let mut result = IndexMap::with_capacity(map.len());
        for (k, v) in map {
          if let Some(v) = map_string(v) {
            result.insert(k, v);
          }
        }
        Some(result)
      } else {
        None
      }
    }

    fn map_object(value: serde_json::Value) -> Option<Map<String, Value>> {
      match value {
        Value::Object(v) => Some(v),
        _ => None,
      }
    }

    fn map_string(value: serde_json::Value) -> Option<String> {
      match value {
        Value::String(v) => Some(v),
        Value::Number(v) => Some(v.to_string()),
        _ => None,
      }
    }

    fn map_array(value: serde_json::Value) -> Option<Vec<Value>> {
      match value {
        Value::Array(v) => Some(v),
        _ => None,
      }
    }

    fn parse_string_array(value: serde_json::Value) -> Option<Vec<String>> {
      let value = map_array(value)?;
      let mut result = Vec::with_capacity(value.len());
      for v in value {
        if let Some(v) = map_string(v) {
          result.push(v);
        }
      }
      Some(result)
    }

    let mut package_json = match package_json {
      Value::Object(o) => o,
      _ => Default::default(),
    };
    let imports_val = package_json.remove("imports");
    let main_val = package_json.remove("main");
    let module_val = package_json.remove("module");
    let browser_val = package_json.remove("browser");
    let name_val = package_json.remove("name");
    let version_val = package_json.remove("version");
    let type_val = package_json.remove("type");
    let bin = package_json.remove("bin");
    let exports = package_json
      .remove("exports")
      .map(|exports| {
        if is_conditional_exports_main_sugar(&exports)? {
          let mut map = Map::new();
          map.insert(".".to_string(), exports.to_owned());
          Ok::<_, PackageJsonLoadError>(Some(map))
        } else {
          Ok(exports.as_object().map(|o| o.to_owned()))
        }
      })
      .transpose()?
      .flatten();

    let imports = imports_val.and_then(map_object);
    let main = main_val.and_then(map_string);
    let name = name_val.and_then(map_string);
    let version = version_val.and_then(map_string);
    let module = module_val.and_then(map_string);
    let browser = browser_val.and_then(map_string);

    let dependencies = package_json
      .remove("dependencies")
      .and_then(parse_string_map);
    let dev_dependencies = package_json
      .remove("devDependencies")
      .and_then(parse_string_map);
    let bundle_dependencies = package_json
      .remove("bundleDependencies")
      .or_else(|| package_json.remove("bundledDependencies"))
      .and_then(parse_string_array);
    let peer_dependencies = package_json
      .remove("peerDependencies")
      .and_then(parse_string_map);
    let peer_dependencies_meta = package_json.remove("peerDependenciesMeta");
    let optional_dependencies = package_json
      .remove("optionalDependencies")
      .and_then(parse_string_map);

    let scripts: Option<IndexMap<String, String>> =
      package_json.remove("scripts").and_then(parse_string_map);

    // Ignore unknown types for forwards compatibility
    let typ = if let Some(t) = type_val {
      if let Some(t) = t.as_str() {
        if t != "module" && t != "commonjs" {
          "none".to_string()
        } else {
          t.to_string()
        }
      } else {
        "none".to_string()
      }
    } else {
      "none".to_string()
    };

    // for typescript, it looks for "typings" first, then "types"
    let types = package_json
      .remove("typings")
      .or_else(|| package_json.remove("types"))
      .and_then(map_string);
    let types_versions = package_json
      .remove("typesVersions")
      .and_then(|exports| exports.as_object().map(|o| o.to_owned()));
    let workspaces = package_json
      .remove("workspaces")
      .and_then(parse_string_array);
    let os = package_json.remove("os").and_then(parse_string_array);
    let cpu = package_json.remove("cpu").and_then(parse_string_array);

    Ok(PackageJson {
      path,
      main,
      name,
      version,
      module,
      browser,
      typ,
      types,
      types_versions,
      exports,
      imports,
      bin,
      dependencies,
      dev_dependencies,
      bundle_dependencies,
      peer_dependencies,
      peer_dependencies_meta,
      optional_dependencies,
      scripts,
      workspaces,
      os,
      cpu,
      resolved_deps: Default::default(),
    })
  }

  pub fn specifier(&self) -> Url {
    deno_path_util::url_from_file_path(&self.path).unwrap()
  }

  pub fn dir_path(&self) -> &Path {
    self.path.parent().unwrap()
  }

  /// Resolve the package.json's dependencies.
  pub fn resolve_local_package_json_deps(&self) -> &PackageJsonDepsRc {
    fn get_map(deps: Option<&IndexMap<String, String>>) -> PackageJsonDepsMap {
      let Some(deps) = deps else {
        return Default::default();
      };
      let mut result = IndexMap::with_capacity(deps.len());
      for (key, value) in deps {
        result
          .entry(StackString::from(key.as_str()))
          .or_insert_with(|| PackageJsonDepValue::parse(key, value));
      }
      result
    }

    self.resolved_deps.get_or_init(|| {
      PackageJsonDepsRc::new(PackageJsonDeps {
        dependencies: get_map(self.dependencies.as_ref()),
        dev_dependencies: get_map(self.dev_dependencies.as_ref()),
      })
    })
  }
}

fn is_conditional_exports_main_sugar(
  exports: &Value,
) -> Result<bool, PackageJsonLoadError> {
  if exports.is_string() || exports.is_array() {
    return Ok(true);
  }

  if exports.is_null() || !exports.is_object() {
    return Ok(false);
  }

  let exports_obj = exports.as_object().unwrap();
  let mut is_conditional_sugar = false;
  let mut i = 0;
  for key in exports_obj.keys() {
    let cur_is_conditional_sugar = key.is_empty() || !key.starts_with('.');
    if i == 0 {
      is_conditional_sugar = cur_is_conditional_sugar;
      i += 1;
    } else if is_conditional_sugar != cur_is_conditional_sugar {
      return Err(PackageJsonLoadError::InvalidExports);
    }
  }

  Ok(is_conditional_sugar)
}

#[cfg(test)]
mod test {
  use std::error::Error;
  use std::path::PathBuf;

  use pretty_assertions::assert_eq;

  use super::*;

  #[test]
  fn null_exports_should_not_crash() {
    let package_json = PackageJson::load_from_string(
      PathBuf::from("/package.json"),
      r#"{ "exports": null }"#,
    )
    .unwrap();

    assert!(package_json.exports.is_none());
  }

  fn get_local_package_json_version_reqs_for_tests(
    package_json: &PackageJson,
  ) -> IndexMap<
    String,
    Result<PackageJsonDepValue, PackageJsonDepValueParseErrorKind>,
  > {
    let deps = package_json.resolve_local_package_json_deps();
    deps
      .dependencies
      .clone()
      .into_iter()
      .chain(deps.dev_dependencies.clone())
      .map(|(k, v)| {
        (
          k.to_string(),
          match v {
            Ok(v) => Ok(v),
            Err(err) => Err(err.into_kind()),
          },
        )
      })
      .collect::<IndexMap<_, _>>()
  }

  #[test]
  fn test_get_local_package_json_version_reqs() {
    let mut package_json =
      PackageJson::load_from_string(PathBuf::from("/package.json"), "{}")
        .unwrap();
    package_json.dependencies = Some(IndexMap::from([
      ("test".to_string(), "^1.2".to_string()),
      ("other".to_string(), "npm:package@~1.3".to_string()),
    ]));
    package_json.dev_dependencies = Some(IndexMap::from([
      ("package_b".to_string(), "~2.2".to_string()),
      ("other".to_string(), "^3.2".to_string()),
    ]));
    let deps = package_json.resolve_local_package_json_deps();
    assert_eq!(
      deps
        .dependencies
        .clone()
        .into_iter()
        .map(|d| (d.0, d.1.unwrap()))
        .collect::<Vec<_>>(),
      Vec::from([
        (
          "test".into(),
          PackageJsonDepValue::Req(PackageReq::from_str("test@^1.2").unwrap())
        ),
        (
          "other".into(),
          PackageJsonDepValue::Req(
            PackageReq::from_str("package@~1.3").unwrap()
          )
        ),
      ])
    );
    assert_eq!(
      deps
        .dev_dependencies
        .clone()
        .into_iter()
        .map(|d| (d.0, d.1.unwrap()))
        .collect::<Vec<_>>(),
      Vec::from([
        (
          "package_b".into(),
          PackageJsonDepValue::Req(
            PackageReq::from_str("package_b@~2.2").unwrap()
          )
        ),
        (
          "other".into(),
          PackageJsonDepValue::Req(PackageReq::from_str("other@^3.2").unwrap())
        ),
      ])
    );
  }

  #[test]
  fn test_get_local_package_json_version_reqs_errors_non_npm_specifier() {
    let mut package_json =
      PackageJson::load_from_string(PathBuf::from("/package.json"), "{}")
        .unwrap();
    package_json.dependencies = Some(IndexMap::from([(
      "test".to_string(),
      "%*(#$%()".to_string(),
    )]));
    let map = get_local_package_json_version_reqs_for_tests(&package_json);
    assert_eq!(map.len(), 1);
    let err = map.get("test").unwrap().as_ref().unwrap_err();
    assert_eq!(format!("{}", err), "Invalid version requirement");
    assert_eq!(
      format!("{}", err.source().unwrap()),
      concat!("Unexpected character.\n", "  %*(#$%()\n", "  ~")
    );
  }

  #[test]
  fn test_get_local_package_json_version_reqs_range() {
    let mut package_json =
      PackageJson::load_from_string(PathBuf::from("/package.json"), "{}")
        .unwrap();
    package_json.dependencies = Some(IndexMap::from([(
      "test".to_string(),
      "1.x - 1.3".to_string(),
    )]));
    let map = get_local_package_json_version_reqs_for_tests(&package_json);
    assert_eq!(
      map,
      IndexMap::from([(
        "test".to_string(),
        Ok(PackageJsonDepValue::Req(PackageReq {
          name: "test".into(),
          version_req: VersionReq::parse_from_npm("1.x - 1.3").unwrap()
        }))
      )])
    );
  }

  #[test]
  fn test_get_local_package_json_version_reqs_jsr() {
    let mut package_json =
      PackageJson::load_from_string(PathBuf::from("/package.json"), "{}")
        .unwrap();
    package_json.dependencies = Some(IndexMap::from([(
      "@denotest/foo".to_string(),
      "jsr:^1.2".to_string(),
    )]));
    let map = get_local_package_json_version_reqs_for_tests(&package_json);
    assert_eq!(
      map,
      IndexMap::from([(
        "@denotest/foo".to_string(),
        Ok(PackageJsonDepValue::JsrReq(PackageReq {
          name: "@denotest/foo".into(),
          version_req: VersionReq::parse_from_specifier("^1.2").unwrap()
        }))
      )])
    );
  }

  #[test]
  fn test_get_local_package_json_version_reqs_skips_certain_specifiers() {
    let mut package_json =
      PackageJson::load_from_string(PathBuf::from("/package.json"), "{}")
        .unwrap();
    package_json.dependencies = Some(IndexMap::from([
      ("test".to_string(), "1".to_string()),
      (
        "work-test-version-req".to_string(),
        "workspace:1.1.1".to_string(),
      ),
      ("work-test-star".to_string(), "workspace:*".to_string()),
      ("work-test-tilde".to_string(), "workspace:~".to_string()),
      ("work-test-caret".to_string(), "workspace:^".to_string()),
      ("file-test".to_string(), "file:something".to_string()),
      ("git-test".to_string(), "git:something".to_string()),
      ("http-test".to_string(), "http://something".to_string()),
      ("https-test".to_string(), "https://something".to_string()),
    ]));
    let result = get_local_package_json_version_reqs_for_tests(&package_json);
    assert_eq!(
      result,
      IndexMap::from([
        (
          "test".to_string(),
          Ok(PackageJsonDepValue::Req(
            PackageReq::from_str("test@1").unwrap()
          ))
        ),
        (
          "work-test-star".to_string(),
          Ok(PackageJsonDepValue::Workspace(
            PackageJsonDepWorkspaceReq::VersionReq(
              VersionReq::parse_from_npm("*").unwrap()
            )
          ))
        ),
        (
          "work-test-version-req".to_string(),
          Ok(PackageJsonDepValue::Workspace(
            PackageJsonDepWorkspaceReq::VersionReq(
              VersionReq::parse_from_npm("1.1.1").unwrap()
            )
          ))
        ),
        (
          "work-test-tilde".to_string(),
          Ok(PackageJsonDepValue::Workspace(
            PackageJsonDepWorkspaceReq::Tilde
          ))
        ),
        (
          "work-test-caret".to_string(),
          Ok(PackageJsonDepValue::Workspace(
            PackageJsonDepWorkspaceReq::Caret
          ))
        ),
        (
          "file-test".to_string(),
          Ok(PackageJsonDepValue::File("something".to_string())),
        ),
        (
          "git-test".to_string(),
          Err(PackageJsonDepValueParseErrorKind::Unsupported {
            scheme: "git".to_string()
          }),
        ),
        (
          "http-test".to_string(),
          Err(PackageJsonDepValueParseErrorKind::Unsupported {
            scheme: "http".to_string()
          }),
        ),
        (
          "https-test".to_string(),
          Err(PackageJsonDepValueParseErrorKind::Unsupported {
            scheme: "https".to_string()
          }),
        ),
      ])
    );
  }

  #[test]
  fn test_deserialize_serialize() {
    let json_value = serde_json::json!({
      "name": "test",
      "version": "1",
      "exports": {
        ".": "./main.js",
      },
      "bin": "./main.js",
      "types": "./types.d.ts",
      "typesVersions": {
        "<4.0": { "index.d.ts": ["index.v3.d.ts"] }
      },
      "imports": {
        "#test": "./main.js",
      },
      "main": "./main.js",
      "module": "./module.js",
      "browser": "./browser.js",
      "type": "module",
      "dependencies": {
        "name": "1.2",
      },
      "devDependencies": {
        "name": "1.2",
      },
      "scripts": {
        "test": "echo \"Error: no test specified\" && exit 1",
      },
      "workspaces": ["asdf", "asdf2"],
      "cpu": ["x86_64"],
      "os": ["win32"],
      "optionalDependencies": {
        "optional": "1.1"
      },
      "bundleDependencies": [
        "name"
      ],
      "peerDependencies": {
        "peer": "1.0"
      },
      "peerDependenciesMeta": {
        "peer": {
          "optional": true
        }
      },
    });
    let package_json = PackageJson::load_from_value(
      PathBuf::from("/package.json"),
      json_value.clone(),
    )
    .unwrap();
    let serialized_value = serde_json::to_value(&package_json).unwrap();
    assert_eq!(serialized_value, json_value);
  }

  // https://github.com/denoland/deno/issues/26031
  #[test]
  fn test_exports_error() {
    let json_value = serde_json::json!({
      "name": "test",
      "version": "1",
      "exports": { ".": "./a", "a": "./a" },
    });
    assert!(matches!(
      PackageJson::load_from_value(
        PathBuf::from("/package.json"),
        json_value.clone(),
      ),
      Err(PackageJsonLoadError::InvalidExports)
    ));
  }
}