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
|
// only needed for 'dump', which is a temporary debugging tool
#include <iostream>
#include <string>
// really needed
#include <stdint.h>
#include <vector>
template <typename PRIMITIVE>
class GrowableBuffer {
public:
void append(PRIMITIVE datum) {
data_.push_back(datum);
}
int64_t length() const {
return data_.size();
}
void dump() const {
for (auto x : data_) {
std::cout << x << " ";
}
}
private:
std::vector<PRIMITIVE> data_;
};
template <typename PRIMITIVE>
class NumpyLayoutBuilder {
public:
void append(PRIMITIVE x) {
data_.append(x);
}
int64_t length() const {
return data_.length();
}
void dump(std::string indent) const {
std::cout << indent << "NumpyLayoutBuilder" << std::endl;
std::cout << indent << " data ";
data_.dump();
std::cout << std::endl;
}
private:
GrowableBuffer<PRIMITIVE> data_;
};
template <typename INDEX, typename BUILDER>
class ListOffsetLayoutBuilder {
public:
ListOffsetLayoutBuilder() {
offsets_.append(0);
}
BUILDER* begin_list() {
return &content_;
}
void end_list() {
offsets_.append(content_.length());
}
void dump(std::string indent) const {
std::cout << indent << "ListOffsetLayoutBuilder" << std::endl;
std::cout << indent << " offsets ";
offsets_.dump();
std::cout << std::endl;
content_.dump(" ");
}
private:
GrowableBuffer<INDEX> offsets_;
BUILDER content_;
};
|
