Class: GLib::SizedArray

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/ffi-glib/sized_array.rb

Overview

Class representing an array with a determined size

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(element_type, size, pointer) ⇒ SizedArray

Returns a new instance of SizedArray.



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# File 'lib/ffi-glib/sized_array.rb', line 7

def initialize element_type, size, pointer
  @element_type = element_type
  @size = size
  @pointer = pointer
end

Instance Attribute Details

#element_type ⇒ Object (readonly)

Returns the value of attribute element_type.



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# File 'lib/ffi-glib/sized_array.rb', line 5

def element_type
  @element_type
end

#size ⇒ Object (readonly)

Returns the value of attribute size.



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# File 'lib/ffi-glib/sized_array.rb', line 5

def size
  @size
end

Class Method Details

.from(element_type, size, item) ⇒ Object 



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# File 'lib/ffi-glib/sized_array.rb', line 33

def from element_type, size, item
  return unless item

  case item
  when FFI::Pointer
    wrap element_type, size, item
  when self
    from_sized_array size, item
  else
    from_enumerable element_type, size, item
  end
end

.wrap(element_type, size, pointer) ⇒ Object 



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# File 'lib/ffi-glib/sized_array.rb', line 28

def self.wrap element_type, size, pointer
  new element_type, size, pointer unless pointer.null?
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/ffi-glib/sized_array.rb', line 17

def each &block
  # TODO: Move implementation from GirFFI::ArgHelper to here.
  # While doing so, the implentation could also become a real iterator
  arr = GirFFI::ArgHelper.ptr_to_typed_array(@element_type, @pointer, @size)
  if block_given?
    arr.each(&block)
  else
    arr.each
  end
end

#to_ptr ⇒ Object 



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# File 'lib/ffi-glib/sized_array.rb', line 13

def to_ptr
  @pointer
end