Capability generate User-Defined Type Guards (enable basic TypeCheck at Runtime) about jtsgen HOT 6 CLOSED

Thank you. I hope it will be implemented in the 0.3.x milestone.

from jtsgen.

Proposal: implement as static method on Person class. So we can call Person.isInstance(object)

from jtsgen.

Note: Classes will be Implemented with #31 . As far as i know, interfaces don't take concrete implementations. Meaning: functions with this tickets and class members in #31

from jtsgen.

There are several issues to be resolved:

• The JSON mapper might exclude some fields, so the type guard should be somehow configurable. this is out of scope for 0.3.0
• it's hard to detect a optional type in jtsgen and is not supported. Even if you define a mapping like abc -> abc? This is out of scope for 0.3.0, also
• The fileds of the super types have to be included.

from jtsgen.

First try using undefined:

  export interface InterFaceTestTypeGuard1 {
    typeGuard1: string;
  }


  export function instanceOfInterFaceTestTypeGuard1(x: any): x is InterFaceTestTypeGuard1{
    return x &&
      x.typeGuard1 !== undefined;
  }

@CanKattwinkel is this the right way?

from jtsgen.

added handling of supertypes: IMHO this feature is ready to be tested.

from jtsgen.