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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsHtml5Portability.h"
#include "jArray.h"
#include "nsAtom.h"
#include "nsHtml5TreeBuilder.h"
#include "nsString.h"
#include "mozilla/CheckedInt.h"
int32_t nsHtml5Portability::checkedAdd(int32_t a, int32_t b) {
mozilla::CheckedInt<int32_t> sum(a);
sum += b;
MOZ_RELEASE_ASSERT(sum.isValid(),
"HTML input too large for signed 32-bit integer.");
return sum.value();
}
nsAtom* nsHtml5Portability::newLocalNameFromBuffer(char16_t* buf,
int32_t length,
nsHtml5AtomTable* interner) {
NS_ASSERTION(interner, "Didn't get an atom service.");
return interner->GetAtom(nsDependentSubstring(buf, buf + length));
}
static bool ContainsWhiteSpace(mozilla::Span<char16_t> aSpan) {
for (char16_t c : aSpan) {
if (nsContentUtils::IsHTMLWhitespace(c)) {
return true;
}
}
return false;
}
nsHtml5String nsHtml5Portability::newStringFromBuffer(
char16_t* buf, int32_t offset, int32_t length,
nsHtml5TreeBuilder* treeBuilder, bool maybeAtomize) {
if (!length) {
return nsHtml5String::EmptyString();
}
if (maybeAtomize &&
!ContainsWhiteSpace(mozilla::Span(buf + offset, length))) {
return nsHtml5String::FromAtom(
NS_AtomizeMainThread(nsDependentSubstring(buf + offset, length)));
}
return nsHtml5String::FromBuffer(buf + offset, length, treeBuilder);
}
nsHtml5String nsHtml5Portability::newEmptyString() {
return nsHtml5String::EmptyString();
}
nsHtml5String nsHtml5Portability::newStringFromLiteral(const char* literal) {
return nsHtml5String::FromLiteral(literal);
}
nsHtml5String nsHtml5Portability::newStringFromString(nsHtml5String string) {
return string.Clone();
}
jArray<char16_t, int32_t> nsHtml5Portability::newCharArrayFromLocal(
nsAtom* local) {
nsAutoString temp;
local->ToString(temp);
int32_t len = temp.Length();
jArray<char16_t, int32_t> arr = jArray<char16_t, int32_t>::newJArray(len);
memcpy(arr, temp.BeginReading(), len * sizeof(char16_t));
return arr;
}
jArray<char16_t, int32_t> nsHtml5Portability::newCharArrayFromString(
nsHtml5String string) {
MOZ_RELEASE_ASSERT(string);
uint32_t len = string.Length();
MOZ_RELEASE_ASSERT(len < INT32_MAX);
jArray<char16_t, int32_t> arr = jArray<char16_t, int32_t>::newJArray(len);
string.CopyToBuffer(arr);
return arr;
}
bool nsHtml5Portability::localEqualsBuffer(nsAtom* local, char16_t* buf,
int32_t length) {
return local->Equals(buf, length);
}
bool nsHtml5Portability::lowerCaseLiteralIsPrefixOfIgnoreAsciiCaseString(
const char* lowerCaseLiteral, nsHtml5String string) {
return string.LowerCaseStartsWithASCII(lowerCaseLiteral);
}
bool nsHtml5Portability::lowerCaseLiteralEqualsIgnoreAsciiCaseString(
const char* lowerCaseLiteral, nsHtml5String string) {
return string.LowerCaseEqualsASCII(lowerCaseLiteral);
}
bool nsHtml5Portability::literalEqualsString(const char* literal,
nsHtml5String string) {
return string.EqualsASCII(literal);
}
bool nsHtml5Portability::stringEqualsString(nsHtml5String one,
nsHtml5String other) {
return one.Equals(other);
}
void nsHtml5Portability::initializeStatics() {}
void nsHtml5Portability::releaseStatics() {}
|
