Union Types

[WendellAdriel]

@ccmiller2018 and I was talking about adding support for union types in Strictus.
This discussion will be used to talk about how we will approach the implementation of this feature.

[hungthai1401]

@WendellAdriel do you have any ideas to implement?

[hungthai1401]

I have created a PR to implement this feature in #20. My flow:

flowchart TD
    A[StrictusUnion] --> B{Validate Types}
    B -->|Yes| C{Validate Value}
    B -->|No| Z[StrictusTypeException]
    C -->|Yes| D{Detect Value Type}
    C -->|No| Z[StrictusTypeException]
    D -->|Int| E[StrictusInteger]
    D -->|String| G[StrictusString]
    D -->|Float| H[StrictusFloat]
    D -->|Boolean| I[StrictusBoolean]
    D -->|Array| K[StrictusArray]
    D -->|Object| L[StrictusObject]
    D -->|Class| M[StrictusInstance]
    D -->|Enum| N[StrictusEnum]
    D -->|No| Z[StrictusTypeException]
    A[StrictusUnion] --> F[Update Value] --> O{Immutable}
    O -->|Yes| Y[ImmutableStrictusException]
    O -->|No| C

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