Class: Buffer

20
21
22
23
24
25
26

# File 'opal/stdlib/buffer.rb', line 20
def initialize(size, bits = 8)
 if native?(size)
 super(size)
 else
 super(`new ArrayBuffer(size * (bits / 8))`)
 end
end

12
13
14
15
16
17
18

# File 'opal/stdlib/buffer.rb', line 12
def self.name_for(bits, type)
 "#{case type
 when :unsigned then 'Uint'
 when :signed then 'Int'
 when :float then 'Float'
 end}#{bits}"
end

8
9
10

# File 'opal/stdlib/buffer.rb', line 8
def self.supported?
 not $$[:ArrayBuffer].nil?
end

28
29
30

# File 'opal/stdlib/buffer.rb', line 28
def length
 `#@native.byteLength`
end

34
35
36

# File 'opal/stdlib/buffer.rb', line 34
def to_a(bits = 8, type = :unsigned)
 Array .new (self, bits, type)
end

38
39
40

# File 'opal/stdlib/buffer.rb', line 38
def view(offset = nil, length = nil)
 View .new (self, offset, length)
end