return Ternary.False;

}

result &= related;

}

return result;

}

let seenOptionalElement = false;

let seenRestElement = false;

const hasNamedElement = some(elementTypes, isNamedTupleMember);

for (let i = 0; i < elementTypes.length; i++) {

const e = elementTypes[i];

for (const e of elementTypes) {

if (e.kind !== SyntaxKind.NamedTupleMember && hasNamedElement) {

grammarErrorOnNode(e, Diagnostics.Tuple_members_must_all_have_names_or_all_not_have_names);

break;