Ole-Morten Duesund
e8428de775
Vite + TypeScript PWA that mirrors the Android app's core features: - Pre-processed shelter data (build-time UTM33N→WGS84 conversion) - Leaflet map with shelter markers, user location, and offline tiles - Canvas compass arrow (ported from DirectionArrowView.kt) - IndexedDB shelter cache with 7-day staleness check - Service worker with CacheFirst tiles and precached app shell - i18n for en, nb, nn (ported from Android strings.xml) - iOS/Android compass handling with low-pass filter - Respects user map interaction (no auto-snap on pan/zoom) - Build revision cache-breaker for reliable SW updates Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
41 lines
1.7 KiB
JavaScript
41 lines
1.7 KiB
JavaScript
'use strict';
|
||
|
||
var $TypeError = require('es-errors/type');
|
||
|
||
// https://262.ecma-international.org/15.0/#sec-arraybufferbytelength
|
||
|
||
var IsDetachedBuffer = require('./IsDetachedBuffer');
|
||
|
||
var isArrayBuffer = require('is-array-buffer');
|
||
var isSharedArrayBuffer = require('is-shared-array-buffer');
|
||
var arrayBufferByteLength = require('array-buffer-byte-length');
|
||
|
||
var callBound = require('call-bound');
|
||
var $sabByteLength = callBound('SharedArrayBuffer.prototype.byteLength', true);
|
||
|
||
var isGrowable = false; // TODO: support this
|
||
|
||
module.exports = function ArrayBufferByteLength(arrayBuffer, order) {
|
||
var isSAB = isSharedArrayBuffer(arrayBuffer);
|
||
if (!isArrayBuffer(arrayBuffer) && !isSAB) {
|
||
throw new $TypeError('Assertion failed: `arrayBuffer` must be an ArrayBuffer or a SharedArrayBuffer');
|
||
}
|
||
if (order !== 'SEQ-CST' && order !== 'UNORDERED') {
|
||
throw new $TypeError('Assertion failed: `order` must be ~SEQ-CST~ or ~UNORDERED~');
|
||
}
|
||
|
||
// 1. If IsSharedArrayBuffer(arrayBuffer) is true and arrayBuffer has an [[ArrayBufferByteLengthData]] internal slot, then
|
||
// TODO: see if IsFixedLengthArrayBuffer can be used here in the spec instead
|
||
if (isSAB && isGrowable) { // step 1
|
||
// a. Let bufferByteLengthBlock be arrayBuffer.[[ArrayBufferByteLengthData]].
|
||
// b. Let rawLength be GetRawBytesFromSharedBlock(bufferByteLengthBlock, 0, BIGUINT64, true, order).
|
||
// c. Let isLittleEndian be the value of the [[LittleEndian]] field of the surrounding agent's Agent Record.
|
||
// d. Return ℝ(RawBytesToNumeric(BIGUINT64, rawLength, isLittleEndian)).
|
||
}
|
||
|
||
if (IsDetachedBuffer(arrayBuffer)) {
|
||
throw new $TypeError('Assertion failed: `arrayBuffer` must not be detached'); // step 2
|
||
}
|
||
|
||
return isSAB ? $sabByteLength(arrayBuffer) : arrayBufferByteLength(arrayBuffer);
|
||
};
|