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 58

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 50

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

Instance Method Details

#address ⇒ Object 



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# File 'lib/grm.rb', line 184

def address
  @args.to_i
end

#clear ⇒ Object 



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# File 'lib/grm.rb', line 179

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

#push(key, value) ⇒ Object 



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# File 'lib/grm.rb', line 67

def push(key, value)
  key = key.to_s if key.is_a?(Symbol)

  # Support Numo::NArray transparently when available
  if defined?(Numo::NArray) && value.is_a?(Numo::NArray)
    shape = value.shape
    case shape.length
    when 1
      # 1D NArray: delegate to existing Array handling
      return push(key, value.to_a)
    when 2
      # 2D NArray: convert to nested Array and reuse 2D Array path
      rows, cols = shape
      nested = Array.new(rows) do |r|
        Array.new(cols) do |c|
          value[r, c]
        end
      end
      return push(key, nested)
    else
      raise ArgumentError, "Numo::NArray with dimension > 2 is not supported for key '#{key}'"
    end
  end

  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 TrueClass, FalseClass
    GRM.args_push(@args, key, 'i', :int, value ? 1 : 0)
  when Args
    @references << value
    GRM.args_push(@args, key, 'a', :voidp, value.address)
    value.to_gr.free = nil
  when Array
    raise ArgumentError, "Array value for key '#{key}' cannot be empty" if value.empty?

    # Handle 2D Array (Matrix): flatten and add dimensions
    if value[0].is_a?(Array)
      rows = value.size
      cols = value[0].size
      # Validate that all rows have the same length
      unless value.all? { |row| row.size == cols }
        raise ArgumentError, "All rows in 2D array for key '#{key}' must have the same length"
      end

      # Flatten in row-major order
      flattened = value.flatten

      push(key, flattened)
      # GRM expects dims in [width, height] order (columns, rows)
      push("#{key}_dims", [cols, rows])
      return
    end

    case value[0]
    when String
      addresses = value.collect { |v| Fiddle::Pointer[v].to_i }
      @references.concat(value)
      packed = addresses.pack('J*')
      @references << packed
      GRM.args_push(@args, key, 'nS',
                    :int, value.size,
                    :voidp, packed)
    when Integer, Float
      if value.all? { |v| v.is_a?(Integer) }
        packed = value.pack('i*')
        @references << packed
        GRM.args_push(@args, key, 'nI',
                      :int, value.size,
                      :voidp, packed)
        return
      end

      packed = value.map(&:to_f).pack('d*')
      @references << packed
      GRM.args_push(@args, key, 'nD',
                    :int, value.size,
                    :voidp, packed)
    when Args
      @references.concat(value)
      packed = value.collect(&:address).pack('J*')
      @references << packed
      GRM.args_push(@args, key, 'nA',
                    :int, value.size,
                    :voidp, packed)
      value.each do |v|
        v.to_gr.free = nil
      end
    else
      vs = value.collect { |v| Args.new(**v) }
      @references.concat(vs)
      packed = vs.collect(&:address).pack('J*')
      @references << packed
      GRM.args_push(@args, key, 'nA',
                    :int, value.size,
                    :voidp, packed)
      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 188

def to_gr
  @args
end