Microsoft.Cci.MetadataHostEnvironment.ProbeAssemblyReference C# (CSharp) Method

    public virtual AssemblyIdentity ProbeAssemblyReference(IUnit referringUnit, AssemblyIdentity referencedAssembly) {
      AssemblyIdentity result;

      if (!string.IsNullOrEmpty(referringUnit.Location)) {
        // probe for in the same directory as the referring unit
        var referringDir = Path.GetDirectoryName(Path.GetFullPath(referringUnit.Location));
        result = this.Probe(referringDir, referencedAssembly);
        if (result != null) return result;
      }

      // Probe in the libPaths directories
      foreach (string libPath in this.LibPaths) {
        Contract.Assume(libPath != null);
        result = this.Probe(libPath, referencedAssembly);
        if (result != null) return result;
      }

      // Check GAC
#if !COMPACTFX
      if (this.SearchInGAC) {
        string/*?*/ gacLocation = GlobalAssemblyCache.GetLocation(referencedAssembly, this);
        if (gacLocation != null) {
          return new AssemblyIdentity(referencedAssembly, gacLocation);
        }
      }
#endif

      // Check platform location
      var platformDir = Path.GetDirectoryName(Path.GetFullPath(GetLocalPath(typeof(object).Assembly.GetName())))??"";
      var coreVersion = this.CoreAssemblySymbolicIdentity.Version;
      if (coreVersion.Major == 1) {
        if (coreVersion.Minor == 0)
          platformDir = Path.Combine(Path.GetDirectoryName(platformDir)??"", "v1.0.3705");
        else if (coreVersion.Minor == 1)
          platformDir = Path.Combine(Path.GetDirectoryName(platformDir)??"", "v1.1.4322");
      } else if (coreVersion.Major == 2) {
        platformDir = Path.Combine(Path.GetDirectoryName(platformDir)??"", "v3.5");
        result = this.Probe(platformDir, referencedAssembly);
        if (result != null) return result;
        platformDir = Path.Combine(Path.GetDirectoryName(platformDir)??"", "v3.0");
        result = this.Probe(platformDir, referencedAssembly);
        if (result != null) return result;
        platformDir = Path.Combine(Path.GetDirectoryName(platformDir)??"", "v2.0.50727");
      } else if (coreVersion.Major == 4) {
        platformDir = Path.Combine(Path.GetDirectoryName(platformDir)??"", "v4.0.30319");
      }

      result = this.Probe(platformDir, referencedAssembly);
      if (result != null) return result;

      // Give up
      return new AssemblyIdentity(referencedAssembly, "unknown://location");
    }