Function getExactOptionalUnassignableProperties

test/fixtures/snapshot/typescript.js:66887–66892

(source, target)

            return isUnitType(type) || !!(type.flags & 134217728 /* TypeFlags.TemplateLiteral */);
        }
        function getExactOptionalUnassignableProperties(source, target) {
            if (isTupleType(source) && isTupleType(target))
                return ts.emptyArray;
            return getPropertiesOfType(target)
                .filter(function (targetProp) { return isExactOptionalPropertyMismatch(getTypeOfPropertyOfType(source, targetProp.escapedName), getTypeOfSymbol(targetProp)); });
        }
        function isExactOptionalPropertyMismatch(source, target) {
            return !!source && !!target && maybeTypeOfKind(source, 32768 /* TypeFlags.Undefined */) && !!containsMissingType(target);
        }