Function createTupleType

test/fixtures/snapshot/typescript.js:60905–60911

(elementTypes, elementFlags, readonly, namedMemberDeclarations)

            return ts.isTypeOperatorNode(node) && node.operator === 145 /* SyntaxKind.ReadonlyKeyword */;
        }
        function createTupleType(elementTypes, elementFlags, readonly, namedMemberDeclarations) {
            if (readonly === void 0) { readonly = false; }
            var tupleTarget = getTupleTargetType(elementFlags || ts.map(elementTypes, function (_) { return 1 /* ElementFlags.Required */; }), readonly, namedMemberDeclarations);
            return tupleTarget === emptyGenericType ? emptyObjectType :
                elementTypes.length ? createNormalizedTypeReference(tupleTarget, elementTypes) :
                    tupleTarget;
        }
        function getTupleTargetType(elementFlags, readonly, namedMemberDeclarations) {
            if (elementFlags.length === 1 && elementFlags[0] & 4 /* ElementFlags.Rest */) {
                // [...X[]] is equivalent to just X[]