Sha256: f5602412bc34b55643cd66e3cc62c7d50756c9463e53598fde496ce989c99ca1
Contents?: true
Size: 983 Bytes
Versions: 5
Compression:
Stored size: 983 Bytes
Contents
require 'forwardable'
require_relative '../core_extensions/binary_extensions'
module Helpers
# Abstract view of a stream
class BaseStreamView
extend Forwardable
include BinaryExtensions
attr_reader :stream, :start_pos
def initialize(stream, start_pos)
@stream = stream
@start_pos = start_pos
end
def_delegators :@stream, :seek, :each_byte, :pos
end
# View of a stream that has a specified size in bytes
class SubStreamView < BaseStreamView
attr_reader :end_pos, :size
def initialize(stream, start_pos, size)
super(stream, start_pos)
@end_pos = @start_pos + size - 1
@size = size
end
def remaining_bytes
@end_pos - pos + 1
end
def eof?
pos > @end_pos || @stream.eof?
end
end
# View of a stream that ends when eof? is true
class StreamView < BaseStreamView
def initialize(stream)
super(stream, 0)
end
def eof?
@stream.eof?
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems