Class: GirFFI::Builders::CallbackArgumentBuilder
Overview
Convertor for arguments for ruby callbacks. Used when building the argument mapper for callbacks.
Constant Summary
BaseArgumentBuilder::KEYWORDS
Instance Attribute Summary
#arginfo, #array_arg, #length_arg
Instance Method Summary
collapse
#argument_class_name, #array_length_idx, #array_length_parameter?, #closure_idx, #destroy_idx, #destroy_notifier?, #direction, #helper_argument?, #initialize, #mark_as_destroy_notifier, #mark_as_user_data, #name, #new_variable, #ownership_transfer, #safe, #specialized_type_tag, #type_info, #user_data?
Instance Method Details
#allow_none? ⇒ Boolean
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 22
def allow_none?
false
end
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#block_argument? ⇒ Boolean
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 18
def block_argument?
false
end
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#call_argument_name ⇒ Object
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 39
def call_argument_name
pre_converted_name if [:in, :inout].include?(direction) && !array_arg
end
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#capture_variable_name ⇒ Object
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 43
def capture_variable_name
result_name if [:out, :inout].include?(direction) && !array_arg
end
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#method_argument_name ⇒ Object
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 14
def method_argument_name
@method_argument_name ||= name || new_variable
end
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#out_parameter_name ⇒ Object
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 30
def out_parameter_name
@out_parameter_name ||=
if direction == :inout
new_variable
else
pre_converted_name
end
end
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#post_conversion ⇒ Object
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 60
def post_conversion
case direction
when :out, :inout
[value_to_pointer_conversion]
when :error
[
"rescue => #{result_name}",
value_to_pointer_conversion,
'end'
]
else
[]
end
end
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#pre_conversion ⇒ Object
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 47
def pre_conversion
case direction
when :in
[ingoing_pre_conversion]
when :out
[out_parameter_preparation]
when :inout
[out_parameter_preparation, ingoing_pre_conversion]
when :error
[out_parameter_preparation, 'begin']
end
end
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#pre_converted_name ⇒ Object
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# File 'lib/gir_ffi/builders/callback_argument_builder.rb', line 26
def pre_converted_name
@pre_converted_name ||= new_variable
end
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