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fix(sfn): can't override toStateJson() from other languages #24593

Merged
merged 1 commit into from Mar 13, 2023
Merged

fix(sfn): can't override toStateJson() from other languages #24593

merged 1 commit into from Mar 13, 2023

Commits on Mar 13, 2023

  1. fix(sfn): can't override toStateJson() from other languages 

    If any part of a state's JSON representation is `null`, that value will
be replaced by `undefined` when jsii sends data to the other language,
resulting in a change of semantics.

Multi-language APIs cannot differentiate between `null` and `undefined`
as non-JS languages typically fail to distinguish between them... In
order to address that, a `JsonNull` value was added which serializes to
`null` (via Javascript's standard `toJSON` method), which must be used
in such cases where `null` may need to cross the language boundary.

The `JsonPath.DISCARD` value is now a string-token representation of the
`JsonNull` instance.

Fixes #14639
    @RomainMuller
    RomainMuller committed Mar 13, 2023
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