Class: DL::Importable::Internal::Memory

Inherits:
Object
  • Object
show all
Defined in:
lib/dl/struct.rb

Instance Method Summary collapse

Constructor Details

#initialize(ptr, names, ty, len, enc, dec) ⇒ Memory

Returns a new instance of Memory.



22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
 
# File 'lib/dl/struct.rb', line 22

def initialize(ptr, names, ty, len, enc, dec)
  @ptr = ptr
  @names = names
  @ty    = ty
  @len   = len
  @enc   = enc
  @dec   = dec

  # define methods
  @names.each{|name|
    instance_eval [
      "def #{name}",
      "  v = @ptr[\"#{name}\"]",
      "  if( @len[\"#{name}\"] )",
      "    v = v.collect{|x| @dec[\"#{name}\"] ? @dec[\"#{name}\"].call(x) : x }",
             "  else",
      "    v = @dec[\"#{name}\"].call(v) if @dec[\"#{name}\"]",
      "  end",
      "  return v",
      "end",
      "def #{name}=(v)",
      "  if( @len[\"#{name}\"] )",
      "    v = v.collect{|x| @enc[\"#{name}\"] ? @enc[\"#{name}\"].call(x) : x }",
      "  else",
      "    v = @enc[\"#{name}\"].call(v) if @enc[\"#{name}\"]",
             "  end",
      "  @ptr[\"#{name}\"] = v",
      "  return v",
      "end",
    ].join("\n")
  }
end

Instance Method Details

#size ⇒ Object 



59
60
61
 
# File 'lib/dl/struct.rb', line 59

def size
  return @ptr.size
end

#to_ptr ⇒ Object 



55
56
57
 
# File 'lib/dl/struct.rb', line 55

def to_ptr
  return @ptr
end