Schema's with id or $id fail to generate valid code

[ahacking]

Versions

I am attempting to use Exonerate 1.1.3, with Elixir 1.17.2 OTP-27

$ elixir -v
Erlang/OTP 27 [erts-15.0] [source] [64-bit] [smp:32:24] [ds:32:24:10] [async-threads:1] [jit:ns]

Elixir 1.17.2 (compiled with Erlang/OTP 27)

mix.exs:

{:exonerate, "~> 1.1.3", runtime: false},

The problem

Consider the schema at https://www.first.org/cvss/cvss-v3.0.json

When attempting to create a validation function:

defmodule Core.JSONSchema.CVSS do
    require Exonerate

  Exonerate.function_from_string(:def, :validate_cvss_3_0, """
  ... contents here ...
  """ 
  )
end

$ mix compile
Compiling 1 file (.ex)
     error: undefined function https://www.first.org/cvss/cvss-v3.0.json#/definitions/scoreType/minimum/2 (expected Core.JSONSchema.CVSS to define such a function or for it to be imported, but none are available)
     │
 613 │   Exonerate.function_from_string(:def, :validate_cvss_3_0, """
     │   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     │
     └─ lib/etc/json_schema/cvss.ex:613: Core.JSONSchema.CVSS."https://www.first.org/cvss/cvss-v3.0.json#/definitions/scoreType"/2

     error: undefined function https://www.first.org/cvss/cvss-v3.0.json#/definitions/scoreType/maximum/2 (expected Core.JSONSchema.CVSS to define such a function or for it to be imported, but none are available)
     │
 613 │   Exonerate.function_from_string(:def, :validate_cvss_3_0, """
     │   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     │
     └─ lib/etc/json_schema/cvss.ex:613: Core.JSONSchema.CVSS."https://www.first.org/cvss/cvss-v3.0.json#/definitions/scoreType"/2

The generated code when using the dump: true option shows the following (both float and integer variants):

defp https___www.first.org_cvss_cvss_v3.0.jsonat_definitions_scoreType(float, path)
     when is_float(float) do
  with :ok <-
         https___www.first.org_cvss_cvss_v3.0.jsonat_definitions_scoreType_maximum(float, path),
       :ok <-
         https___www.first.org_cvss_cvss_v3.0.jsonat_definitions_scoreType_minimum(float, path) do
    :ok
  end
end

There are no functions generated named: https___www.first.org_cvss_cvss_v3.0.jsonat_definitions_scoreType_minimum or https___www.first.org_cvss_cvss_v3.0.jsonat_definitions_scoreType_maximum however there are functions entrypoint_at_definitions_scoreType_minimum and entrypoint_at_definitions_scoreType_maximum which indicates a problem prefixing the id on the function names.

If I remove the following "id: " line from the schema document string then it compiles successfully.

"id": "https://www.first.org/cvss/cvss-v3.0.json",

Some questions

• Why does a schema with an id generate some function names without the required id prefix?
• How would cross schema references resolve in the cache without the ids?
• What would be a strategy to handling this correctly? (Would it be better to hash the id to keep them uniform length?)

Thanks.