Module: Anthropic::Helpers::InputSchema::JsonSchemaConverter

Included in:
ArrayOf, BaseModel, Boolean, EnumOf, UnionOf
Defined in:
lib/anthropic/helpers/input_schema/json_schema_converter.rb

Overview

To customize the JSON schema conversion for a type, implement the ‘JsonSchemaConverter` interface.

Constant Summary collapse

POINTERS =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

Object.new.tap do
  _1.define_singleton_method(:inspect) do
    "#<#{Anthropic::Helpers::InputSchema::JsonSchemaConverter}::POINTERS>"
  end
end.freeze
NO_REF =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

Object.new.tap do
  _1.define_singleton_method(:inspect) do
    "#<#{Anthropic::Helpers::InputSchema::JsonSchemaConverter}::NO_REF>"
  end
end.freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.assoc_meta!(schema, meta:) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:

  • schema (Hash{Symbol=>Object}) 


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# File 'lib/anthropic/helpers/input_schema/json_schema_converter.rb', line 65

def assoc_meta!(schema, meta:)
  xformed = meta.transform_keys(Anthropic::Helpers::InputSchema::PROPERTY_MAPPING)
  schema.merge!(xformed)
end

.cache_def!(state, type:, &blk) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:

  • state (Hash{Symbol=>Object}) —

    @option state [HashObject=>String] :defs

    @option state [Array<String>] :path

  • type (Object)
  • blk (Proc) 


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# File 'lib/anthropic/helpers/input_schema/json_schema_converter.rb', line 82

def cache_def!(state, type:, &blk)
  defs, path = state.fetch_values(:defs, :path)
  if (stored = defs[type])
    pointers = stored.fetch(Anthropic::Helpers::InputSchema::JsonSchemaConverter::POINTERS)
    pointers.first.except(Anthropic::Helpers::InputSchema::JsonSchemaConverter::NO_REF).tap do
      pointers << _1
    end
  else
    ref_path = String.new
    ref = {"$ref": ref_path}
    stored = {
      Anthropic::Helpers::InputSchema::JsonSchemaConverter::POINTERS => [ref]
    }
    defs.store(type, stored)
    schema = blk.call
    ref_path.replace("#/$defs/#{path.join('/')}")
    stored.update(schema)
    ref
  end
end

.to_json_schema(type) ⇒ Hash{Symbol=>Object}

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:

Returns:

  • (Hash{Symbol=>Object}) 


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# File 'lib/anthropic/helpers/input_schema/json_schema_converter.rb', line 108

def to_json_schema(type)
  defs = {}
  state = {defs: defs, path: []}
  schema = Anthropic::Helpers::InputSchema::JsonSchemaConverter.to_json_schema_inner(
    type,
    state: state
  )
  reused_defs = {}
  defs.each_value do |acc|
    sch = acc.except(Anthropic::Helpers::InputSchema::JsonSchemaConverter::POINTERS)
    pointers = acc.fetch(Anthropic::Helpers::InputSchema::JsonSchemaConverter::POINTERS)

    no_refs, refs = pointers.partition do
      _1.delete(Anthropic::Helpers::InputSchema::JsonSchemaConverter::NO_REF)
    end

    case refs
    in [ref]
      ref.replace(ref.except(:$ref).merge(sch))
    in [_, ref, *]
      reused_defs.store(ref.fetch(:$ref), sch)
      refs.each do
        next if (meta = _1.except(:$ref)).empty?
        # JSON Schema does not allow keyword properties to be defined alongside a $ref.
        # If we have a keyword property associated with a $ref, it must be wrapped in an allOf.
        _1.replace(allOf: [_1.slice(:$ref), meta])
      end
    else
    end
    no_refs.each { _1.replace(_1.except(:$ref).merge(sch)) }
  end

  xformed = reused_defs.transform_keys { _1.delete_prefix("#/$defs/") }
  xformed.empty? ? schema : {"$defs": xformed}.update(schema)
end

.to_json_schema_inner(type, state:) ⇒ Hash{Symbol=>Object}

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:

Returns:

  • (Hash{Symbol=>Object})

Raises:

  • (ArgumentError) 


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# File 'lib/anthropic/helpers/input_schema/json_schema_converter.rb', line 155

def to_json_schema_inner(type, state:)
  case type
  in {"$ref": String}
    return type
  in Anthropic::Helpers::InputSchema::JsonSchemaConverter
    return type.to_json_schema_inner(state: state)
  in Class
    case type
    in -> { _1 <= NilClass }
      return {type: "null"}
    in -> { _1 <= Integer }
      return {type: "integer"}
    in -> { _1 <= Float }
      return {type: "number"}
    in -> { _1 <= Symbol || _1 <= String }
      return {type: "string"}
    else
    end
  in _ if Anthropic::Internal::Util.primitive?(type)
    return {const: type.is_a?(Symbol) ? type.to_s : type}
  else
  end

  models = %w[
    NilClass
    String
    Symbol
    Integer
    Float
    Anthropic::Boolean
    Anthropic::ArrayOf
    Anthropic::EnumOf
    Anthropic::UnionOf
    Anthropic::BaseModel
  ]
  # rubocop:disable Layout/LineLength
  message = "#{type} does not implement the #{Anthropic::Helpers::InputSchema::JsonSchemaConverter} interface. Please use one of the supported types: #{models}"
  # rubocop:enable Layout/LineLength
  raise ArgumentError.new(message)
end

.to_nilable(schema) ⇒ Hash{Symbol=>Object}

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:

  • schema (Hash{Symbol=>Object})

Returns:

  • (Hash{Symbol=>Object}) 


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# File 'lib/anthropic/helpers/input_schema/json_schema_converter.rb', line 43

def to_nilable(schema)
  null = "null"
  case schema
  in {"$ref": String} | {allOf: _}
    # For references (simple or with allOf pattern for descriptions),
    # wrap in anyOf with null. The allOf pattern is used when we need
    # to add a description to a $ref (JSON Schema doesn't allow
    # additional properties alongside $ref).
    {anyOf: [schema, {type: null}]}
  in {anyOf: schemas}
    null = {type: null}
    schemas.any? { _1 == null || _1 == {type: ["null"]} } ? schema : {anyOf: [*schemas, null]}
  in {type: String => type}
    type == null ? schema : schema.update(type: [type, null])
  in {type: Array => types}
    types.include?(null) ? schema : schema.update(type: [*types, null])
  end
end

Instance Method Details

#to_json_schema_inner(state:) ⇒ Hash{Symbol=>Object}

The exact JSON schema produced is subject to improvement between minor release versions.

Parameters:

  • state (Hash{Symbol=>Object}) —

    @option state [HashObject=>String] :defs

    @option state [Array<String>] :path

Returns:

  • (Hash{Symbol=>Object}) 


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# File 'lib/anthropic/helpers/input_schema/json_schema_converter.rb', line 32

def to_json_schema_inner(state:) = (raise NotImplementedError)