#118 use serialized key for poly switch

[ChrisDufourMB]

Description

Note: This is a breaking change - @PolymorphicSwitch no longer supports static properties

Refactor the polymorphic switch decorator to use the same key serialization logic as the @SerializeProperty decorator.

@SerializeProperty()
@PolymorphicSwitch(() => new TestClass(), "TestClass")

Enhance the polymorphic switch decorator to accept a test function, that allows for custom logic when determining if the target property means that the polymorphic type is this class.

@PolymorphicSwitch(
  () => new TestClassOtherYear(),
  (propertyValue) => (propertyValue as Date).getFullYear() !== 2020,
)

Fixes #118

Renames input argument to json for polymorphic decorator functions

Things to look at

• Test coverage
• Code Style
• Documentation (README.md, doc/, examples/, etc..)

[hardy925]

Hey hey,

I am requesting changes because I ran the build script and our node tests failed.

We are also missing two tests, if we cannot get a code path to those lines then we can probably make a small update

Thanks!

[hardy925]

This looks good to me - 100% test coverage, all passing and our npm build looks good on the latest deno.

Thanks for the contribution