code: package io.ray.runtime.functionmanager;
  
  import com.google.common.base.Objects;
  import io.ray.runtime.generated.Common.Language;
  import java.util.Arrays;
  import java.util.List;
  
  /** Represents metadata of a Cpp function. */
  public class CppFunctionDescriptor implements FunctionDescriptor {
  
    public String createFunctionName;
  
    public String className;
  
    public String caller;
  
    public CppFunctionDescriptor(String createFunctionName, String caller, String className) {
      this.createFunctionName = createFunctionName;
      this.caller = caller;
      this.className = className;
    }
  
    @Override
    public String toString() {
      return createFunctionName + "." + caller + "." + className;
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      CppFunctionDescriptor that = (CppFunctionDescriptor) o;
      return Objects.equal(createFunctionName, that.createFunctionName)
          && Objects.equal(className, that.className)
          && Objects.equal(caller, that.caller);
    }
  
    @Override
    public int hashCode() {
      return Objects.hashCode(createFunctionName, caller, className);
    }
  
    @Override
    public List<String> toList() {
      return Arrays.asList(createFunctionName, caller, className);
    }
  
    @Override
    public Language getLanguage() {
      return Language.CPP;
    }
  }
  