Class: GirFFI::Builders::MarshallingMethodBuilder

Inherits:
BaseMethodBuilder show all
Defined in:
lib/gir_ffi/builders/marshalling_method_builder.rb

Overview

Implements the creation mapping method for a signal handler. This method converts arguments from C to Ruby, and the result from Ruby to C.

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from BaseMethodBuilder

#argument_builder_collection, #argument_builders, #error_argument, #method_definition, #receiver_builder, #return_value_builder, #return_value_info, #template, #variable_generator

Constructor Details

#initialize(receiver_info, info) ⇒ MarshallingMethodBuilder

Returns a new instance of MarshallingMethodBuilder.



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 18

def initialize(receiver_info, info)
  super(info, ClosureReturnValueBuilder,
        receiver_info: receiver_info,
        argument_builder_class: ClosureArgumentBuilder)
end

Class Method Details

.for_signal(receiver_info, info) ⇒ Object 



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 14

def self.for_signal(receiver_info, info)
  new receiver_info, info
end

Instance Method Details

#invocation ⇒ Object 



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 42

def invocation
  "wrap(closure.to_ptr).invoke_block(#{call_argument_list})"
end

#method_arguments ⇒ Object 



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 30

def method_arguments
  %w(closure return_value param_values _invocation_hint _marshal_data)
end

#method_name ⇒ Object

Methods used by MethodTemplate



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 26

def method_name
  'marshaller'
end

#preparation ⇒ Object 



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 34

def preparation
  if param_names.size == 1
    ["#{param_names.first} = param_values.first.get_value_plain"]
  else
    ["#{param_names.join(', ')} = param_values.map(&:get_value_plain)"]
  end
end

#result ⇒ Object 



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 46

def result
  if (name = @argument_builder_collection.return_value_name)
    ["return_value.set_value #{name}"]
  else
    []
  end
end

#singleton_method? ⇒ Boolean

Returns:



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# File 'lib/gir_ffi/builders/marshalling_method_builder.rb', line 54

def singleton_method?
  true
end