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Copy pathbuffer.rb
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48 lines (38 loc) · 818 Bytes
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Copy pathbuffer.rb
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48 lines (38 loc) · 818 Bytes
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# backtick_javascript: true
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
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
def to_s
to_a.to_a.pack('c*')
end
alias size length
end