Class: Dry::Schema::Macros::Value Private

Inherits:
DSL
  • Object
show all
Defined in:
lib/dry/schema/macros/value.rb

Overview

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

A macro used for specifying predicates to be applied to values from a hash

Direct Known Subclasses

Filled, Schema

Instance Attribute Summary

Attributes inherited from DSL

#chain, #predicate_inferrer, #primitive_inferrer

Instance Method Summary collapse

Methods inherited from DSL

#array, #custom_type?, #each, #filled, #hash, #schema, #type, #value

Methods inherited from Core

#new, #operation, #path, #to_ast, #to_rule

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &block) ⇒ Object (private)

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. 



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# File 'lib/dry/schema/macros/value.rb', line 111

def method_missing(meth, *args, &block)
  if meth.to_s.end_with?(QUESTION_MARK)
    trace.__send__(meth, *args, &block)
  else
    super
  end
end

Instance Method Details

#array_type?(type) ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'lib/dry/schema/macros/value.rb', line 70

def array_type?(type)
  primitive_inferrer[type].eql?([::Array])
end

#build_array_type(array_type, member) ⇒ 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. 



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# File 'lib/dry/schema/macros/value.rb', line 85

def build_array_type(array_type, member)
  if array_type.respond_to?(:of)
    array_type.of(member)
  else
    raise ArgumentError, <<~ERROR.split("\n").join(" ")
      Cannot define schema for a nominal array type.
      Array types must be instances of Dry::Types::Array,
      usually constructed with Types::Constructor(Array) { ... } or
      Dry::Types['array'].constructor { ... }
    ERROR
  end
end

#call(*args, **opts, &block) ⇒ 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. 



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# File 'lib/dry/schema/macros/value.rb', line 14

def call(*args, **opts, &block)
  types, predicates = args.partition { |arg| arg.is_a?(Dry::Types::Type) }

  constructor = types.select { |type| type.is_a?(Dry::Types::Constructor) }.reduce(:>>)
  schema = predicates.detect { |predicate| predicate.is_a?(Processor) }

  schema_dsl.set_type(name, constructor) if constructor

  type_spec = opts[:type_spec]

  if schema
    current_type = schema_dsl.types[name]

    updated_type =
      if array_type?(current_type)
        build_array_type(current_type, schema.type_schema)
      else
        schema.type_schema
      end

    import_steps(schema)

    if !custom_type? || array_type?(current_type) || hash_type?(current_type)
      type(updated_type)
    elsif maybe_type?(current_type)
      type(updated_type.optional)
    end
  end

  trace_opts = opts.reject { |key, _| %i[type_spec type_rule].include?(key) }

  if (type_rule = opts[:type_rule])
    trace.append(type_rule).evaluate(*predicates, **trace_opts)
    trace.append(new(chain: false).instance_exec(&block)) if block
  else
    trace.evaluate(*predicates, **trace_opts)

    if block && type_spec.equal?(:hash)
      hash(&block)
    elsif type_spec.is_a?(::Dry::Types::Type) && hash_type?(type_spec)
      hash(type_spec)
    elsif block
      trace.append(new(chain: false).instance_exec(&block))
    end
  end

  if trace.captures.empty?
    raise ArgumentError, "wrong number of arguments (given 0, expected at least 1)"
  end

  each(type_spec.type.member) if type_spec.respond_to?(:member)

  self
end

#hash_type?(type) ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'lib/dry/schema/macros/value.rb', line 75

def hash_type?(type)
  primitive_inferrer[type].eql?([::Hash])
end

#import_steps(schema) ⇒ 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. 



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# File 'lib/dry/schema/macros/value.rb', line 99

def import_steps(schema)
  schema_dsl.steps.import_callbacks(Path[[*path, name]], schema.steps)
end

#maybe_type?(type) ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'lib/dry/schema/macros/value.rb', line 80

def maybe_type?(type)
  type.meta[:maybe].equal?(true)
end

#respond_to_missing?(meth, include_private = false) ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'lib/dry/schema/macros/value.rb', line 104

def respond_to_missing?(meth, include_private = false)
  super || meth.to_s.end_with?(QUESTION_MARK)
end