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Contents
module Cucumber
module Messages
# Varint (variable byte-length int) is an encoding format commonly used
# to encode the length of Protocol Buffer message frames.
module Varint
def self.decode_varint(io)
# https://github.com/ruby-protobuf/protobuf/blob/master/lib/protobuf/varint_pure.rb
value = index = 0
begin
byte = io.readbyte
value |= (byte & 0x7f) << (7 * index)
index += 1
end while (byte & 0x80).nonzero?
value
end
# https://www.rubydoc.info/gems/ruby-protocol-buffers/1.2.2/ProtocolBuffers%2FVarint.encode
def self.encode_varint(io, int_val)
if int_val < 0
# negative varints are always encoded with the full 10 bytes
int_val = int_val & 0xffffffff_ffffffff
end
loop do
byte = int_val & 0x7f
int_val >>= 7
if int_val == 0
io << byte.chr
break
else
io << (byte | 0x80).chr
end
end
end
end
end
end
Version data entries
39 entries across 39 versions & 1 rubygems