Module: GirFFI::InfoExt::ITypeInfo

Includes:
BuilderHelper
Defined in:
lib/gir_ffi/info_ext/i_type_info.rb

Overview

Extensions for GObjectIntrospection::IArgInfo needed by GirFFI

Instance Method Summary collapse

Methods included from BuilderHelper

#const_defined_for, #optionally_define_constant

Instance Method Details

#element_type ⇒ Object 



23
24
25
26
27
28
29
30
31
32
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 23

def element_type
  case tag
  when :glist, :gslist, :array
    subtype_tag_or_class 0
  when :ghash
    [subtype_tag_or_class(0), subtype_tag_or_class(1)]
  else
    nil
  end
end

#flattened_array_type ⇒ Object 



54
55
56
57
58
59
60
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 54

def flattened_array_type
  if zero_terminated?
    zero_terminated_array_type
  else
    array_type
  end
end

#flattened_tag ⇒ Object 



38
39
40
41
42
43
44
45
46
47
48
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 38

def flattened_tag
  type_tag = self.tag
  case type_tag
  when :interface
    interface_type
  when :array
    flattened_array_type
  else
    type_tag
  end
end

#g_type ⇒ Object 



9
10
11
12
13
14
15
16
17
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 9

def g_type
  tag = self.tag
  case tag
  when :interface
    interface.g_type
  else
    GObject::TYPE_TAG_TO_GTYPE[tag]
  end
end

#interface_type ⇒ Object 



50
51
52
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 50

def interface_type
  tag == :interface && interface.info_type
end

#interface_type_name ⇒ Object 



34
35
36
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 34

def interface_type_name
  interface.full_type_name
end

#make_g_value ⇒ Object 



19
20
21
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 19

def make_g_value
  GObject::Value.for_g_type g_type
end

#subtype_tag_or_class(index = 0) ⇒ Object 



66
67
68
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 66

def subtype_tag_or_class index = 0
  param_type(index).tag_or_class
end

#subtype_tag_or_class_name(index = 0) ⇒ Object 



62
63
64
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 62

def subtype_tag_or_class_name index = 0
  param_type(index).tag_or_class_name
end

#tag_or_class ⇒ Object 



74
75
76
77
78
79
80
81
82
83
84
85
86
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 74

def tag_or_class
  type_tag = self.tag
  base = if type_tag == :interface
           Builder.build_class interface
         else
           type_tag
         end
  if pointer? && type_tag != :utf8 && type_tag != :filename || interface_type == :object
    [:pointer, base]
  else
    base
  end
end

#tag_or_class_name ⇒ Object 



70
71
72
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 70

def tag_or_class_name
  tag_or_class.inspect
end

#to_callback_ffitype ⇒ Object 



107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 107

def to_callback_ffitype
  type_tag = tag

  return :string if type_tag == :utf8
  return :pointer if pointer?

  if type_tag == :interface
    case interface.info_type
    when :enum, :flags
      :int32
    else
      :pointer
    end
  else
    return TypeMap.map_basic_type type_tag
  end
end

#to_ffitype ⇒ Object 



88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
 
# File 'lib/gir_ffi/info_ext/i_type_info.rb', line 88

def to_ffitype
  return :pointer if pointer?

  type_tag = tag
  case type_tag
  when :interface
    interface.to_ffitype
  when :array
    subtype = param_type(0).to_ffitype
    # NOTE: Don't use pointer directly to appease JRuby.
    if subtype == :pointer
      subtype = :"uint#{FFI.type_size(:pointer)*8}"
    end
    [subtype, array_fixed_size]
  else
    TypeMap.map_basic_type type_tag
  end
end