Function getEffectiveRestType

test/fixtures/snapshot/typescript.js:77646–77657

(signature)

            return false;
        }
        function getEffectiveRestType(signature) {
            if (signatureHasRestParameter(signature)) {
                var restType = getTypeOfSymbol(signature.parameters[signature.parameters.length - 1]);
                if (!isTupleType(restType)) {
                    return restType;
                }
                if (restType.target.hasRestElement) {
                    return sliceTupleType(restType, restType.target.fixedLength);
                }
            }
            return undefined;
        }
        function getNonArrayRestType(signature) {
            var restType = getEffectiveRestType(signature);
            return restType && !isArrayType(restType) && !isTypeAny(restType) && (getReducedType(restType).flags & 131072 /* TypeFlags.Never */) === 0 ? restType : undefined;