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 | 5x 5x 5x 5x 42760x 1391x 58x 22x 5x 4082x 4082x 4082x 4082x 4082x 15083x 15083x 15083x 21380x 21380x 21380x 21380x 21380x 21380x 21380x 21380x 21380x 21380x 21380x 21380x 3x 3x 21380x 20683x 20683x 668x 668x 668x 18x 18x 18x 11x 11x 11x 21380x | import {sort} from '@jsonjoy.com/util/lib/sort/insertion2';
import {objKeyCmp} from '@jsonjoy.com/util/lib/objKeyCmp';
import {CborEncoder} from './CborEncoder';
import {MAJOR_OVERLAY} from './constants';
const strHeaderLength = (strSize: number): 1 | 2 | 3 | 5 => {
if (strSize <= 23) return 1;
else if (strSize <= 0xff) return 2;
else if (strSize <= 0xffff) return 3;
else return 5;
};
export class CborEncoderStable extends CborEncoder {
public writeObj(obj: Record<string, unknown>): void {
const keys = Object.keys(obj);
sort(keys, objKeyCmp);
const length = keys.length;
this.writeObjHdr(length);
for (let i = 0; i < length; i++) {
const key = keys[i];
this.writeStr(key);
this.writeAny(obj[key]);
}
}
/** @todo This implementation might be even faster than the default one, verify that. */
public writeStr(str: string): void {
const writer = this.writer;
const length = str.length;
const maxSize = length * 4;
writer.ensureCapacity(5 + maxSize);
const headerLengthGuess = strHeaderLength(length);
const x0 = writer.x;
const x1 = x0 + headerLengthGuess;
writer.x = x1;
const bytesWritten = writer.utf8(str);
const uint8 = writer.uint8;
const headerLength = strHeaderLength(bytesWritten);
if (headerLength !== headerLengthGuess) {
const shift = headerLength - headerLengthGuess;
uint8.copyWithin(x1 + shift, x1, x1 + bytesWritten);
}
switch (headerLength) {
case 1:
uint8[x0] = MAJOR_OVERLAY.STR + bytesWritten;
break;
case 2:
uint8[x0] = 0x78;
uint8[x0 + 1] = bytesWritten;
break;
case 3: {
uint8[x0] = 0x79;
writer.view.setUint16(x0 + 1, bytesWritten);
break;
}
case 5: {
uint8[x0] = 0x7a;
writer.view.setUint32(x0 + 1, bytesWritten);
break;
}
}
writer.x = x0 + headerLength + bytesWritten;
}
public writeUndef(): void {
this.writeNull();
}
}
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