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Andy Wingo: two mechanisms for dynamic type checks

  • None--Wingolog.org
  • published date: 2026-02-18 16:21:10 UTC

Today, a very quick note on dynamic instance type checks in virtual machines with single inheritance. The problem is that given an object o whose type is t, you want to check if o actually is of some more specific type u. To my knowledge, there are two sensi…

Today, a very quick note on dynamic instance type checks in virtual machines with single inheritance. The problem is that given an object o whose type is t, you want to check if o actually is of s… [+3096 chars]