Problem

When ExportComponentSchemas: true is set and the generator walks into a struct field whose type is anonymous (e.g. an inline struct{...} literal), reflect.Type.Name() returns "". The component-export branch in generateSchemaRefFor happily registers it:

typeName := g.generateTypeName(t)
g.componentSchemaRefs[typeName] = struct{}{}
return openapi3.NewSchemaRef(fmt.Sprintf("#/components/schemas/%s", typeName), schema), nil

The result is a component keyed by "" and a \$ref of #/components/schemas/. Both violate the OpenAPI 3 component-key pattern (^[a-zA-Z0-9._-]+\$) and downstream codegen tools reject the spec:

🛑 Invalid component key found. OpenAPI component keys must match the pattern /^[a-zA-Z0-9.\-_]+/
  Invalid keys:
    - components.schemas.

Fix

When generateTypeName returns "", inline the schema instead of registering it as a component. This matches the behavior already used for generics and time.Time in the same function.

Test

TestExportComponentSchemasSkipsAnonymousType registers a struct with an inline anonymous field and asserts no component schema is created with an empty key.