Class: GraphQL::StaticValidation::LiteralValidator

Inherits:
Object
  • Object
show all
Defined in:
lib/graphql/static_validation/literal_validator.rb

Overview

Test whether ast_value is a valid input for type

Instance Method Summary collapse

Constructor Details

#initialize(context:) ⇒ LiteralValidator

Returns a new instance of LiteralValidator



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# File 'lib/graphql/static_validation/literal_validator.rb', line 6

def initialize(context:)
  @context = context
  @warden = context.warden
end

Instance Method Details

#validate(ast_value, type) ⇒ Object



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# File 'lib/graphql/static_validation/literal_validator.rb', line 11

def validate(ast_value, type)
  if ast_value.is_a?(GraphQL::Language::Nodes::NullValue)
    !type.kind.non_null?
  elsif type.kind.non_null?
    (!ast_value.nil?) && validate(ast_value, type.of_type)
  elsif type.kind.list?
    item_type = type.of_type
    ensure_array(ast_value).all? { |val| validate(val, item_type) }
  elsif type.kind.scalar? && !ast_value.is_a?(GraphQL::Language::Nodes::AbstractNode) && !ast_value.is_a?(Array)
    type.valid_input?(ast_value, @context)
  elsif type.kind.enum? && ast_value.is_a?(GraphQL::Language::Nodes::Enum)
    type.valid_input?(ast_value.name, @context)
  elsif type.kind.input_object? && ast_value.is_a?(GraphQL::Language::Nodes::InputObject)
    required_input_fields_are_present(type, ast_value) &&
      present_input_field_values_are_valid(type, ast_value)
  elsif ast_value.is_a?(GraphQL::Language::Nodes::VariableIdentifier)
    true
  else
    false
  end
end