Class: GraphQL::Client::DefinitionVariables::VariablesVisitor

Inherits:
Language::Visitor
  • Object
show all
Includes:
TypeStack
Defined in:
lib/graphql/client/definition_variables.rb

Instance Attribute Summary collapse

Attributes included from TypeStack

#argument_definitions, #directive_definitions, #field_definitions, #object_types, #path, #schema

Instance Method Summary collapse

Methods included from TypeStack

#on_argument, #on_directive, #on_field, #on_fragment_definition, #on_fragment_spread, #on_inline_fragment, #on_operation_definition

Constructor Details

#initialize(*_args, **_kwargs) ⇒ VariablesVisitor

Returns a new instance of VariablesVisitor.



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# File 'lib/graphql/client/definition_variables.rb', line 35

def initialize(*_args, **_kwargs)
  super
  @variables = {}
end

Instance Attribute Details

#variables ⇒ Object (readonly)

Returns the value of attribute variables.



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# File 'lib/graphql/client/definition_variables.rb', line 40

def variables
  @variables
end

Instance Method Details

#on_variable_identifier(node, parent) ⇒ Object 



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# File 'lib/graphql/client/definition_variables.rb', line 42

def on_variable_identifier(node, parent)
  if definition = @argument_definitions.last
    existing_type = @variables[node.name.to_sym]

    if existing_type && existing_type.unwrap != definition.type.unwrap
      raise GraphQL::Client::ValidationError, "$#{node.name} was already declared as #{existing_type.unwrap}, but was #{definition.type.unwrap}"
    elsif !(existing_type && existing_type.kind.non_null?)
      @variables[node.name.to_sym] = definition.type
    end
  end
  super
end