Hi Daniel,
I think you can do:
capnp::ConstSchema type =
schema.getNested("Person").getNested("type").asConst();
But it's been a long time since I touched this.
By the way, please do not use stuff in kj::_ directly, that is a private
namespace. To read a Maybe, use KJ_IF_MAYBE, KJ_ASSERT_NONNULL,
KJ_UNWRAP_OR, etc.
-Kenton
On Wed, Jun 8, 2022 at 12:33 PM Daniel Koohmarey <
[email protected]> wrote:
> Given the following dummy schema test.capnp:
> struct Person {
> const type :Text = "person.type.example";
> version @0 :UInt32;
> name @1 :Text;
> }
>
> At runtime, how can we read the default const value from a schema struct
> (i.e the "person.type.example" above? (type is not considered a field
> within the struct, but it does appear as a node in the proto):
> std::string schema_filename = "test.capnp"; kj::ArrayPtr<const
> kj::StringPtr> import_paths;
> capnp::SchemaParser parser;
> capnp::ParsedSchema schema = parser.parseDiskFile(
> schema_filename.c_str(),
>
> schema_filename.c_str(), import_paths);
> auto person_maybe = schema.findNested("Person");
> auto* person_schema = kj::_::readMaybe(person_maybe);
>
> // how can I read "person.type.example" out of the Person struct?
>
> Any guidance on the matter is appreciated, thanks!
>
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