Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | 25x 25x 25x 25x 25x 25x 25x 25x 25x 25x 25x 25x 25x 25x 113906x 113906x 113906x 113906x 25x 25x 409232x 409232x 409232x 29957x 29957x 409232x 409232x 409232x 25x 25x 258x 258x 258x 258x 258x 258x 25x 25x 71512x 71512x 71511x 71511x 71511x 70217x 70217x 71511x 71511x 71512x 25x 25x 30677x 30677x 30677x 25x 25x 405x 405x 404x 404x 404x 405x 404x 405x 25x 25x 442x 442x 441x 441x 441x 441x 264163x 264163x 264163x 264163x 441x 442x 25x 25x 25x 66865x 66865x 125x 125x 125x 125x 125x 66749x 66665x 66665x 66665x 75x 66865x 66865x 25x 25x 179883x 179883x 25x 25x 2574x 38x 38x 2574x 25x 25x 25x 4x 4x 4x 4x 8x 8x 4x 4x 4x 4x 2x 2x 2x 2x 1x 1x 2x 2x 2x 2x 2x 4x 4x 4x 4x 4x 4x 4x 25x 25x 25x 71x 71x 71x 71x 71x 234x 234x 163x 163x 222x 71x 23x 23x 23x 23x 1x 1x 71x 48x 48x 48x 48x 48x 48x 71x 71x 163x 71x 71x 71x 71x 25x 25x 25x 773x 773x 773x 773x 773x 773x 773x 773x 25x | 'use strict';
const {
StringPrototypeSlice,
SymbolIterator,
TypedArrayPrototypeSet,
Uint8Array,
} = primordials;
const { Buffer } = require('buffer');
const { inspect } = require('internal/util/inspect');
module.exports = class BufferList {
constructor() {
this.head = null;
this.tail = null;
this.length = 0;
}
push(v) {
const entry = { data: v, next: null };
if (this.length > 0)
this.tail.next = entry;
else
this.head = entry;
this.tail = entry;
++this.length;
}
unshift(v) {
const entry = { data: v, next: this.head };
if (this.length === 0)
this.tail = entry;
this.head = entry;
++this.length;
}
shift() {
if (this.length === 0)
return;
const ret = this.head.data;
if (this.length === 1)
this.head = this.tail = null;
else
this.head = this.head.next;
--this.length;
return ret;
}
clear() {
this.head = this.tail = null;
this.length = 0;
}
join(s) {
if (this.length === 0)
return '';
let p = this.head;
let ret = '' + p.data;
while ((p = p.next) !== null)
ret += s + p.data;
return ret;
}
concat(n) {
if (this.length === 0)
return Buffer.alloc(0);
const ret = Buffer.allocUnsafe(n >>> 0);
let p = this.head;
let i = 0;
while (p) {
TypedArrayPrototypeSet(ret, p.data, i);
i += p.data.length;
p = p.next;
}
return ret;
}
// Consumes a specified amount of bytes or characters from the buffered data.
consume(n, hasStrings) {
const data = this.head.data;
if (n < data.length) {
// `slice` is the same for buffers and strings.
const slice = data.slice(0, n);
this.head.data = data.slice(n);
return slice;
}
if (n === data.length) {
// First chunk is a perfect match.
return this.shift();
}
// Result spans more than one buffer.
return hasStrings ? this._getString(n) : this._getBuffer(n);
}
first() {
return this.head.data;
}
*[SymbolIterator]() {
for (let p = this.head; p; p = p.next) {
yield p.data;
}
}
// Consumes a specified amount of characters from the buffered data.
_getString(n) {
let ret = '';
let p = this.head;
let c = 0;
do {
const str = p.data;
if (n > str.length) {
ret += str;
n -= str.length;
} else {
if (n === str.length) {
ret += str;
++c;
if (p.next)
this.head = p.next;
else
this.head = this.tail = null;
} else {
ret += StringPrototypeSlice(str, 0, n);
this.head = p;
p.data = StringPrototypeSlice(str, n);
}
break;
}
++c;
} while ((p = p.next) !== null);
this.length -= c;
return ret;
}
// Consumes a specified amount of bytes from the buffered data.
_getBuffer(n) {
const ret = Buffer.allocUnsafe(n);
const retLen = n;
let p = this.head;
let c = 0;
do {
const buf = p.data;
if (n > buf.length) {
TypedArrayPrototypeSet(ret, buf, retLen - n);
n -= buf.length;
} else {
if (n === buf.length) {
TypedArrayPrototypeSet(ret, buf, retLen - n);
++c;
if (p.next)
this.head = p.next;
else
this.head = this.tail = null;
} else {
TypedArrayPrototypeSet(ret,
new Uint8Array(buf.buffer, buf.byteOffset, n),
retLen - n);
this.head = p;
p.data = buf.slice(n);
}
break;
}
++c;
} while ((p = p.next) !== null);
this.length -= c;
return ret;
}
// Make sure the linked list only shows the minimal necessary information.
[inspect.custom](_, options) {
return inspect(this, {
...options,
// Only inspect one level.
depth: 0,
// It should not recurse.
customInspect: false
});
}
};
|