Module: FastMcp::PredicateHandler

Included in:
SchemaCompiler
Defined in:
lib/mcp/tool.rb

Overview

Module for handling predicates

Instance Method Summary collapse

Instance Method Details

#add_predicate_description(predicate_name, args, key_name, properties) ⇒ Object

Add predicate description to schema



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# File 'lib/mcp/tool.rb', line 397

def add_predicate_description(predicate_name, args, key_name, properties)
  property = properties[key_name]

  case predicate_name
  when :array?, :bool?, :decimal?, :float?, :hash?, :int?, :nil?, :str?
    add_basic_type(predicate_name, property)
  when :date?, :date_time?, :time?
    add_date_time_format(predicate_name, property)
  when :min_size?, :max_size?, :included_in?
    add_string_constraint(predicate_name, args, property)
  when :filled?
    # Already handled by the required array
  when :uri?
    property[:format] = 'uri'
  when :uuid_v1?, :uuid_v2?, :uuid_v3?, :uuid_v4?, :uuid_v5?
    add_uuid_pattern(predicate_name, property)
  when :gt?, :gteq?, :lt?, :lteq?
    add_numeric_constraint(predicate_name, args, property)
  when :odd?, :even?
    add_number_constraint(predicate_name, property)
  when :format?
    add_format_constraint(args, property)
  when :key?
    nil
  end
end

#extract_predicate_args(rule) ⇒ Object

Extract arguments from a predicate



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# File 'lib/mcp/tool.rb', line 386

def extract_predicate_args(rule)
  if rule.respond_to?(:args) && !rule.args.nil?
    rule.args
  elsif rule.respond_to?(:predicate) && rule.predicate.respond_to?(:arguments)
    rule.predicate.arguments
  else
    []
  end
end

#extract_predicates(rule, key, properties = nil) ⇒ Object

Extract predicates from a rule



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# File 'lib/mcp/tool.rb', line 361

def extract_predicates(rule, key, properties = nil)
  properties ||= @json_schema[:properties]

  case rule
  when Dry::Logic::Operations::And
    rule.rules.each { |r| extract_predicates(r, key, properties) }
  when Dry::Logic::Operations::Implication
    extract_predicates(rule.right, key, properties)
  when Dry::Logic::Operations::Key
    extract_predicates(rule.rule, key, properties)
  when Dry::Logic::Operations::Set
    rule.rules.each { |r| extract_predicates(r, key, properties) }
  else
    process_predicate(rule, key, properties) if rule.respond_to?(:name)
  end
end

#process_predicate(rule, key, properties) ⇒ Object

Process a predicate



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# File 'lib/mcp/tool.rb', line 379

def process_predicate(rule, key, properties)
  predicate_name = rule.name
  args = extract_predicate_args(rule)
  add_predicate_description(predicate_name, args, key, properties)
end