openapi3gen Panic when embedded field has more properties than root

[austince]

When using a SchemaCustomizer with an embedded struct field that has more fields than the root object, the generator panics. It seems like the issue is that the field index is accessed from the parent based on the index of the embedded.

I have a test showing this here: austince@f93a9da

[austince]

This seems to be a problem with how jsoninfo treats Anonymous fields – it seems to just add them as fields to the parent, which is incorrect if the reflected type is used later on for index access. Moreover, it seems that TypeInfo only supports a flat list of fields.

I'll try to spend some time for a solution, though do not know if it will be backwards compatible.

[austince]

This also makes it impossible to generate a schema ref for the openapi3.T{} type itself, unless I'm missing something.