VERILOG2130: The type of a case item expression that does not match the type of the case condition expression should be fixed

Summary

Reliability	Security	Maintainability	Code attribute	Effort to fix	Tags

HIGH	-	-	Intentionality \| Logical	10min	synthesis, vscode, linter, simulation

The type of a case item expression that does not match the type of the case condition expression often indicates a coding error.

module m;
  enum {A, B} e;
  enum {C, D} f;
  initial begin
    case (e)
      C: ;
    endcase
  end
endmodule

module m;
  enum {A, B} e;
  enum {C, D} f;
  initial begin
    case (e)
      A: ;
    endcase
  end
endmodule

No parameters.