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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
require 'beefcake/buffer/base'
module Beefcake
class Buffer
def append(type, val, fn)
if fn != 0
wire = Buffer.wire_for(type)
append_info(fn, wire)
end
__send__("append_#{type}", val)
end
def append_info(fn, wire)
append_uint32((fn << 3) | wire)
end
def append_fixed32(n, tag=false)
if n < MinUint32 || n > MaxUint32
raise OutOfRangeError, n
end
self << [n].pack("V")
end
def append_fixed64(n)
if n < MinUint64 || n > MaxUint64
raise OutOfRangeError, n
end
self << [n & 0xFFFFFFFF, n >> 32].pack("VV")
end
def append_int32(n)
if n < MinInt32 || n > MaxInt32
raise OutOfRangeError, n
end
append_int64(n)
end
def append_uint32(n)
if n < MinUint32 || n > MaxUint32
raise OutOfRangeError, n
end
append_uint64(n)
end
def append_int64(n)
if n < MinInt64 || n > MaxInt64
raise OutOfRangeError, n
end
if n < 0
n += (1 << 64)
end
append_uint64(n)
end
def append_sint32(n)
append_uint32((n << 1) ^ (n >> 31))
end
def append_sfixed32(n)
append_fixed32((n << 1) ^ (n >> 31))
end
def append_sint64(n)
append_uint64((n << 1) ^ (n >> 63))
end
def append_sfixed64(n)
append_fixed64((n << 1) ^ (n >> 63))
end
def append_uint64(n)
if n < MinUint64 || n > MaxUint64
raise OutOfRangeError, n
end
while true
bits = n & 0x7F
n >>= 7
if n == 0
return self << bits
end
self << (bits | 0x80)
end
end
def append_float(n)
self << [n].pack("e")
end
def append_double(n)
self << [n].pack("E")
end
def append_bool(n)
append_int64(n ? 1 : 0)
end
def append_string(s)
actual_string = thaw_string s
encoded = actual_string.dup.force_encoding 'binary'
append_uint64(encoded.length)
self << encoded
end
alias :append_bytes :append_string
private
def thaw_string(s)
if s.frozen?
s = s.dup
end
s.to_s
end
end
end
|
