Class: GRM::Args

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**args) ⇒ Args

Returns a new instance of Args.



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# File 'lib/grm.rb', line 76

def initialize(**args)
  @args = GRM.args_new
  @args.free = FFI["grm_args_delete"]
  @references = []
  args.each do |key, value|
    push(key, value)
  end
end

Class Method Details

.try_convert(value) ⇒ Object 



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# File 'lib/grm.rb', line 66

def try_convert(value)
  case value
  when Hash
    new(**value)
  else
    nil
  end
end

Instance Method Details

#address ⇒ Object 



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# File 'lib/grm.rb', line 142

def address
  @args.to_i
end

#clear ⇒ Object 



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# File 'lib/grm.rb', line 137

def clear
  GRM.args_clear(@args)
  @references.clear
end

#push(key, value) ⇒ Object 



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# File 'lib/grm.rb', line 85

def push(key, value)
  key = key.to_s if key.is_a?(Symbol)
  case value
  when String
    GRM.args_push(@args, key, "s", :const_string, value)
  when Integer
    GRM.args_push(@args, key, "i", :int, value)
  when Float
    GRM.args_push(@args, key, "d", :double, value)
  when Args
    GRM.args_push(@args, key, "a", :voidp, value.address)
    value.to_gr.free = nil
  when Array
    case value[0]
    when String
      addresses = value.collect {|v| Fiddle::Pointer[v].to_i}
      GRM.args_push(@args, key, "nS",
                    :int, value.size,
                    :voidp, addresses.pack("J*"))
    when Integer
      GRM.args_push(@args, key, "nI",
                    :int, value.size,
                    :voidp, value.pack("i*"))
    when Float
      GRM.args_push(@args, key, "nD",
                    :int, value.size,
                    :voidp, value.pack("d*"))
    when Args
      GRM.args_push(@args, key, "nA",
                    :int, value.size,
                    :voidp, value.collect(&:address).pack("J*"))
      value.each do |v|
        v.to_gr.free = nil
      end
    else
      vs = value.collect {|v| Args.new(**v)}
      @references.concat(vs)
      GRM.args_push(@args, key, "nA",
                    :int, value.size,
                    :voidp, vs.collect(&:address).pack("J*"))
      vs.each do |v|
        v.to_gr.free = nil
      end
    end
  else
    v = Args.new(**value)
    @references << v
    GRM.args_push(@args, key, "a", :voidp, v.address)
    v.to_gr.free = nil
  end
end

#to_gr ⇒ Object 



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# File 'lib/grm.rb', line 146

def to_gr
  @args
end