require 'native'

require 'buffer/array'

require 'buffer/view'

class Buffer

include Native::Wrapper

def self.supported?

!$$[:ArrayBuffer].nil?

end

def self.name_for(bits, type)

part = case type

when :unsigned then 'Uint'

when :signed then 'Int'

when :float then 'Float'

end

"#{part}#{bits}"

end

def initialize(size, bits = 8)

if native?(size)

super(size)

else

super(`new ArrayBuffer(size * (bits / 8))`)

end

end

def length

`#{@native}.byteLength`

end

alias size length

def to_a(bits = 8, type = :unsigned)

Array.new(self, bits, type)

end

def view(offset = nil, length = nil)

View.new(self, offset, length)

end

end