drizzle-orm
Version:
Drizzle ORM package for SQL databases
65 lines • 2.07 kB
JavaScript
;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var utils_exports = {};
__export(utils_exports, {
parseEWKB: () => parseEWKB
});
module.exports = __toCommonJS(utils_exports);
function hexToBytes(hex) {
const bytes = [];
for (let c = 0; c < hex.length; c += 2) {
bytes.push(Number.parseInt(hex.slice(c, c + 2), 16));
}
return new Uint8Array(bytes);
}
function bytesToFloat64(bytes, offset) {
const buffer = new ArrayBuffer(8);
const view = new DataView(buffer);
for (let i = 0; i < 8; i++) {
view.setUint8(i, bytes[offset + i]);
}
return view.getFloat64(0, true);
}
function parseEWKB(hex) {
const bytes = hexToBytes(hex);
let offset = 0;
const byteOrder = bytes[offset];
offset += 1;
const view = new DataView(bytes.buffer);
const geomType = view.getUint32(offset, byteOrder === 1);
offset += 4;
let _srid;
if (geomType & 536870912) {
_srid = view.getUint32(offset, byteOrder === 1);
offset += 4;
}
if ((geomType & 65535) === 1) {
const x = bytesToFloat64(bytes, offset);
offset += 8;
const y = bytesToFloat64(bytes, offset);
offset += 8;
return [x, y];
}
throw new Error("Unsupported geometry type");
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
parseEWKB
});
//# sourceMappingURL=utils.cjs.map