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
|
// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/nekernel-org/nekernel
#ifndef NEKIT_KSTRING_H
#define NEKIT_KSTRING_H
#include <CompilerKit/CompilerKit.h>
#include <NeKit/Config.h>
#include <NeKit/ErrorOr.h>
#include <NeKit/KernelPanic.h>
#include <NeKit/Utils.h>
namespace Kernel {
inline constexpr Int kMinimumStringSize = 8196;
/// @brief Kernel string class, not dynamic.
template <typename CharKind = Char, Int MinSz = kMinimumStringSize>
class KBasicString final {
public:
KBasicString() {
fDataSz = MinSz;
fData = new CharKind[fDataSz];
MUST_PASS(fData);
rt_set_memory(fData, 0, fDataSz);
}
KBasicString(SizeT Sz) : fDataSz(Sz) {
MUST_PASS(Sz > 1);
fData = new CharKind[Sz];
MUST_PASS(fData);
rt_set_memory(fData, 0, Sz);
}
~KBasicString() {
if (fData) {
delete[] fData;
fData = nullptr;
}
}
NE_COPY_DEFAULT(KBasicString)
CharKind* Data();
const CharKind* CData() const;
Size Length() const;
bool operator==(const CharKind* rhs) const;
bool operator!=(const CharKind* rhs) const;
bool operator==(const KBasicString<CharKind, MinSz>& rhs) const;
bool operator!=(const KBasicString<CharKind, MinSz>& rhs) const;
KBasicString<CharKind, MinSz>& operator+=(const CharKind* rhs);
KBasicString<CharKind, MinSz>& operator+=(const KBasicString<CharKind, MinSz>& rhs);
operator const char*() { return fData; }
explicit operator bool() { return fData; }
bool operator!() { return fData; }
private:
CharKind* fData{nullptr};
Size fDataSz{0};
Size fCur{0};
friend class KStringBuilder;
};
using KString = KBasicString<>;
using KStringOr = ErrorOr<KString>;
class KStringBuilder final {
public:
template <typename CharKind = Char, Int MinSz = kMinimumStringSize>
static ErrorOr<KBasicString<CharKind, MinSz>> Construct(const CharKind* data);
template <typename CharKind = Char>
static const CharKind* FromBool(const CharKind* fmt, bool n);
template <typename CharKind = Char>
static const CharKind* Format(const CharKind* fmt, const CharKind* from);
template <typename CharKind = Char>
static bool Equals(const CharKind* lhs, const CharKind* rhs);
};
} // namespace Kernel
#include <NeKit/KString.inl>
#endif
|
