Class: GirFFI::Builders::ArgumentBuilder

Inherits:
BaseArgumentBuilder show all
Defined in:
lib/gir_ffi/builders/argument_builder.rb

Overview

Implements building pre- and post-processing statements for arguments.

Constant Summary

Constants inherited from BaseArgumentBuilder

BaseArgumentBuilder::KEYWORDS

Instance Attribute Summary

Attributes inherited from BaseArgumentBuilder

#arginfo, #array_arg, #is_closure, #length_arg

Instance Method Summary collapse

Methods inherited from BaseArgumentBuilder

#argument_class_name, #array_length_idx, #callarg, #direction, #initialize, #name, #new_variable, #safe, #specialized_type_tag, #type_info

Constructor Details

This class inherits a constructor from GirFFI::Builders::BaseArgumentBuilder

Instance Method Details

#method_argument_name ⇒ Object 



11
12
13
14
15
 
# File 'lib/gir_ffi/builders/argument_builder.rb', line 11

def method_argument_name
  if has_input_value? && !is_array_length_parameter?
    name
  end
end

#post_conversion ⇒ Object 



49
50
51
52
53
54
55
56
 
# File 'lib/gir_ffi/builders/argument_builder.rb', line 49

def post_conversion
  if has_post_conversion?
    value = output_value
    ["#{post_converted_name} = #{value}"]
  else
    []
  end
end

#post_converted_name ⇒ Object 



17
18
19
20
21
22
23
 
# File 'lib/gir_ffi/builders/argument_builder.rb', line 17

def post_converted_name
  @post_converted_name ||= if has_post_conversion?
                             new_variable
                           else
                             callarg
                           end
end

#pre_conversion ⇒ Object 



31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# File 'lib/gir_ffi/builders/argument_builder.rb', line 31

def pre_conversion
  pr = []
  case direction
  when :in
    pr << fixed_array_size_check if needs_size_check?
    pr << array_length_assignment if is_array_length_parameter?
    pr << "#{callarg} = #{ingoing_convertor.conversion}"
  when :inout
    pr << fixed_array_size_check if needs_size_check?
    pr << array_length_assignment if is_array_length_parameter?
    pr << out_parameter_preparation
    pr << "#{callarg}.set_value #{ingoing_convertor.conversion}"
  when :out
    pr << out_parameter_preparation
  end
  pr
end

#return_value_name ⇒ Object 



25
26
27
28
29
 
# File 'lib/gir_ffi/builders/argument_builder.rb', line 25

def return_value_name
  if has_output_value?
    post_converted_name unless is_array_length_parameter?
  end
end