Details
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Change Request
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Resolution: Unresolved
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Medium
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Clinical Quality Language (FHIR)
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1.5 [deprecated]
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Clinical Decision Support
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Grammar
Description
Add the ability to define a named tuple type, with the following proposed addition to the grammar:
library
:
libraryDefinition?
usingDefinition*
namedTypeDefinition*
includeDefinition*
codesystemDefinition*
valuesetDefinition*
codeDefinition*
conceptDefinition*
parameterDefinition*
statement*
EOF
;
namedTypeDefinition
: accessModifier? 'type' typeIdentifier ':' typeSpecifier
;
typeIdentifier
: identifier
;
The simplest implementation would just be expansion of named type references.
For discussion, see the Zulip thread here:
https://chat.fhir.org/#narrow/stream/179220-cql/topic/Proposed.20New.20Feature.20-.20Named.20Types