bool InternalAddReference(string assemblyLocation) {
var refc = new CompileReference(assemblyLocation);
var existed = _references.Find(p=>p.MetadataReference.Equals(refc));
if (existed!=null) return false;
_references.Add(refc);
return true;
}
bool InternalAddReference(IArtifact artifact) {
var refc = new CompileReference(artifact);
var existed = _references.Find(p => p.MetadataReference.Equals(refc));
if (existed != null) return false;
_references.Add(refc);
return true;
}
