Resolver.re

let resolve =
    (
      ~fullMetadata=false,
      ~name: string,
      ~spec: option(VersionSpec.t)=?,
      resolver: t,
    ) =>
  RunAsync.Syntax.(
    switch (Resolutions.find(resolver.resolutions, name)) {
    | Some(resolution) =>
      /* increment usage counter for that resolution so that we know it was used */
      markResolutionAsUsed(resolver, resolution);
      return([resolution]);
    | None =>
      let spec =
        switch (spec) {
        | None =>
          if (InstallManifest.isOpamPackageName(name)) {
            VersionSpec.Opam([[OpamPackageVersion.Constraint.ANY]]);
          } else {
            VersionSpec.Npm([[SemverVersion.Constraint.ANY]]);
          }
        | Some(spec) => spec
        };

      resolve'(~fullMetadata, ~name, ~spec, resolver);
    }
  );