blob: 798777979ef03c42b7c12d84732154677a3e6f32 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
# frozen_string_literal: true
module Sass
class Compiler
# The {Varint} module.
#
# It reads and writes varints.
module Varint
module_function
def length(value)
return 1 if value < 128
(value.bit_length + 6) / 7
end
def read(readable)
value = bits = 0
loop do
byte = readable.readbyte
value |= (byte & 0x7f) << bits
bits += 7
break if byte < 0x80
end
value
end
def write(writeable, value)
until value < 0x80
writeable << ((value & 0x7f) | 0x80)
value >>= 7
end
writeable << value
end
end
private_constant :Varint
end
end
|
