Show type alias name in union member errors#55604
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elicwhite wants to merge 2 commits intofacebook:mainfrom
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Show type alias name in union member errors#55604elicwhite wants to merge 2 commits intofacebook:mainfrom
elicwhite wants to merge 2 commits intofacebook:mainfrom
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Summary: TypeAliasTypeAnnotation members in unions were all treated as equal (returning 0) by the sort comparator, which meant the merge-based comparison in compareUnionMemberArrays could not distinguish between different type aliases like ObjectA, ObjectB, and ObjectC. This caused it to compare them positionally instead of by identity, misreporting added/removed union members as type mismatches. The fix compares TypeAliasTypeAnnotation by name, similar to how StringLiteralTypeAnnotation compares by value, allowing the merge algorithm to correctly identify which members were added or removed. Changelog: [Internal] Reviewed By: fkgozali Differential Revision: D93262588
Summary: When reporting added/removed union members of type TypeAliasTypeAnnotation, the error message showed the generic type kind "TypeAliasTypeAnnotation" instead of the actual alias name (e.g., "ObjectC"). This adds a case to getTypeAnnotationLabel to return the alias name for TypeAliasTypeAnnotation, producing clearer error messages like "Member ObjectC" instead of "Member TypeAliasTypeAnnotation". Changelog: [Internal] Reviewed By: fkgozali Differential Revision: D93262589
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Summary:
When reporting added/removed union members of type TypeAliasTypeAnnotation, the error message showed the generic type kind "TypeAliasTypeAnnotation" instead of the actual alias name (e.g., "ObjectC"). This adds a case to getTypeAnnotationLabel to return the alias name for TypeAliasTypeAnnotation, producing clearer error messages like "Member ObjectC" instead of "Member TypeAliasTypeAnnotation".
Changelog: [Internal]
Differential Revision: D93262589