Method AsList

common/value.h:845–845

Performs a checked cast from a value to a list value, returning a non-empty optional with either a value or reference to the list value. Otherwise an empty optional is returned.

  // returning a non-empty optional with either a value or reference to the
  // list value. Otherwise an empty optional is returned.
  absl::optional<ListValue> AsList() & { return std::as_const(*this).AsList(); }
  absl::optional<ListValue> AsList() const&;
  absl::optional<ListValue> AsList() &&;
  absl::optional<ListValue> AsList() const&& {