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view.rb
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108 lines (82 loc) · 2.58 KB
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class Buffer
class View
include Native::Wrapper
def self.supported?
!$$[:DataView].nil?
end
attr_reader :buffer, :offset
def initialize(buffer, offset = nil, length = nil)
if native?(buffer)
super(buffer)
elsif offset && length
super(`new DataView(#{buffer.to_n}, #{offset.to_n}, #{length.to_n})`)
elsif offset
super(`new DataView(#{buffer.to_n}, #{offset.to_n})`)
else
super(`new DataView(#{buffer.to_n})`)
end
@buffer = buffer
@offset = offset
end
def length
`#{@native}.byteLength`
end
alias size length
def get(offset, bits = 8, type = :unsigned, little = false)
`#{@native}["get" + #{Buffer.name_for bits, type}](offset, little)`
end
alias [] get
def set(offset, value, bits = 8, type = :unsigned, little = false)
`#{@native}["set" + #{Buffer.name_for bits, type}](offset, value, little)`
end
alias []= set
def get_int8(offset, little = false)
`#{@native}.getInt8(offset, little)`
end
def set_int8(offset, value, little = false)
`#{@native}.setInt8(offset, value, little)`
end
def get_uint8(offset, little = false)
`#{@native}.getUint8(offset, little)`
end
def set_uint8(offset, value, little = false)
`#{@native}.setUint8(offset, value, little)`
end
def get_int16(offset, little = false)
`#{@native}.getInt16(offset, little)`
end
def set_int16(offset, value, little = false)
`#{@native}.setInt16(offset, value, little)`
end
def get_uint16(offset, little = false)
`#{@native}.getUint16(offset, little)`
end
def set_uint16(offset, value, little = false)
`#{@native}.setUint16(offset, value, little)`
end
def get_int32(offset, little = false)
`#{@native}.getInt32(offset, little)`
end
def set_int32(offset, value, little = false)
`#{@native}.setInt32(offset, value, little)`
end
def get_uint32(offset, little = false)
`#{@native}.getUint32(offset, little)`
end
def set_uint32(offset, value, little = false)
`#{@native}.setUint32(offset, value, little)`
end
def get_float32(offset, little = false)
`#{@native}.getFloat32(offset, little)`
end
def set_float32(offset, value, little = false)
`#{@native}.setFloat32(offset, value, little)`
end
def get_float64(offset, little = false)
`#{@native}.getFloat64(offset, little)`
end
def set_float64(offset, value, little = false)
`#{@native}.setFloat64(offset, value, little)`
end
end
end