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Runtime type behavior of FHIR types is not polymorphic #867

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brynrhodes opened this issue Jun 30, 2022 · 0 comments
Open

Runtime type behavior of FHIR types is not polymorphic #867

brynrhodes opened this issue Jun 30, 2022 · 0 comments
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@brynrhodes
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Given the following Expressions:

define TestCodeType: code { value: 'STATE' }
define TestStringType: string { value: 'STATE' }
define TestCodeTypeEqualStringType: TestCodeType = TestStringType

TestCodeTypeEqualStringType should return true because a FHIR.code is a FHIR.string, but it returns false because the provider's EqualEvaluator implementation does not respect type hierarchy in determining equality.
@brynrhodes brynrhodes added the bug label Jun 30, 2022
@JPercival JPercival transferred this issue from cqframework/cql-engine Dec 21, 2022
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@brynrhodes