decoder: Introduce helper functions for completion inside ObjectConsExpr
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dbanck
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Feb 21, 2023
Co-authored-by: Daniel Banck <dbanck@users.noreply.github.com>
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This PR introduces two small helper functions decoupled from a few discovered use cases / PRs:
TypeDeclarationasConstraint#183 (forobject({ ... }))LiteralTypeasConstraint#186 (throughObjectorMap)MapasConstraint#199ObjectasConstraint#203AnyExpressionconstraintThe last attached test case illustrates an example of the problem.
Implementation Notes
Our use cases don't actually involve multi-byte runes, so in theory we could be just comparing single bytes and avoid the decoding, but that then makes the consumer side a bit more verbose since
'\n'would need to be written e.g. asbyte('\n'). We could technically allow runes and treat them like single bytes, but that just feels wrong.Since we'd usually seek through relatively small slice, the decoding is unlikely to pose performance issue, but we can revisit the solution if it does.