MergeUp
MergeUp<O, O1, depth>: { 'flat': MergeUpFlat<O, O1>; 'deep': { [K in keyof (O & O1)]: Kind<NonNullable<At<O, K> & At<O1, K>>> extends "object" ? { [K in keyof ((K extends NullableKeys<O> ? { 1: OptionalFlat<At<O, K> & {}>; 0: Compute<OptionalFlat<Pick<At<O, K> & {}, Keys<At<O, K> & {}>>> & Pick<At<O, K> & {}, Exclude<keyof At<O, K>, keyof Pick<At<O, K> & {}, Keys<At<O, K> & {}>>>>>; }[Implements<Keys<At<O, K> & {}>, Keys<At<O, K> & {}>>] : At<O, K> & {}) & (K extends NullableKeys<O1> ? { 1: OptionalFlat<At<O1, K> & {}>; 0: Compute<OptionalFlat<Pick<At<O1, K> & {}, Keys<At<O1, K> & {}>>> & Pick<At<O1, K> & {}, Exclude<keyof At<O1, K>, keyof Pick<At<O1, K> & {}, Keys<At<O1, K> & {}>>>>>; }[Implements<Keys<At<O1, K> & {}>, Keys<At<O1, K> & {}>>] : At<O1, K> & {}))]: Kind<NonNullable<At<K extends NullableKeys<O> ? { 1: OptionalFlat<At<O, K> & {}>; 0: Compute<OptionalFlat<Pick<At<O, K> & {}, Keys<At<O, K> & {}>>> & Pick<At<O, K> & {}, Exclude<keyof At<O, K>, keyof Pick<At<O, K> & {}, Keys<At<O, K> & {}>>>>>; }[Implements<Keys<At<O, K> & {}>, Keys<At<O, K> & {}>>] : At<O, K> & {}, K> & At<K extends NullableKeys<O1> ? { 1: OptionalFlat<At<O1, K> & {}>; 0: Compute<OptionalFlat<Pick<At<O1, K> & {}, Keys<At<O1, K> & {}>>> & Pick<At<O1, K> & {}, Exclude<keyof At<O1, K>, keyof Pick<At<O1, K> & {}, Keys<At<O1, K> & {}>>>>>; }[Implements<Keys<At<O1, K> & {}>, Keys<At<O1, K> & {}>>] : At<O1, K> & {}, K>>> extends "object" ? any : any; } | (K extends { [K in keyof any]-?: any; }[Keys<O>] ? any : any) : any; }; }[depth]
Type parameters
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O: object
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O1: object
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depth: Depth
Accurately complete the fields of
Owith the ones ofO1. This is a version ofMergethat handles optional fields. It understands that merged optional fields are no longer optional (have been completed).