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
|
const builtin = @import("builtin");
const std = @import("std");
const value = @import("../value.zig");
const gc = @import("../gc.zig");
const Value = value.Value;
const Endian = enum(u1) {
little,
big,
const native: Endian = switch (builtin.target.cpu.arch.endian()) {
.little => .little,
.big => .big,
};
};
pub const Header = packed struct(u64) {
type: enum(u2) {
values,
string,
ints,
floats,
},
info: packed union {
values: packed struct(u14) {
weak: bool = false,
_: u13 = 0,
},
string: packed struct(u14) {
enc: enum(u4) { utf8, utf16, utf24, utf32 },
endian: Endian = .native,
quoted: bool,
interned: bool,
_: u7 = 0,
},
ints: packed struct(u14) {
signed: bool,
endian: Endian = .native,
size: u12,
},
floats: packed struct(u14) {
double: bool,
endian: Endian = .native,
_: u12 = 0,
},
},
size: u48,
pub fn bytes(self: *Header) []u8 {
const hs = @sizeOf(Header);
const ptr: [*]u8 = @ptrCast(self);
const end = hs + self.size;
return ptr[hs..end];
}
};
|
