@ton/core
Version:
Core TypeScript library that implements low level primitives for TON blockchain.
64 lines (63 loc) • 1.97 kB
JavaScript
;
/**
* Copyright (c) Whales Corp.
* All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.writeString = exports.stringToCell = exports.readString = void 0;
const Builder_1 = require("../Builder");
function readBuffer(slice) {
// Check consistency
if (slice.remainingBits % 8 !== 0) {
throw new Error(`Invalid string length: ${slice.remainingBits}`);
}
if (slice.remainingRefs !== 0 && slice.remainingRefs !== 1) {
throw new Error(`invalid number of refs: ${slice.remainingRefs}`);
}
// Read string
let res;
if (slice.remainingBits === 0) {
res = Buffer.alloc(0);
}
else {
res = slice.loadBuffer(slice.remainingBits / 8);
}
// Read tail
if (slice.remainingRefs === 1) {
res = Buffer.concat([res, readBuffer(slice.loadRef().beginParse())]);
}
return res;
}
function readString(slice) {
return readBuffer(slice).toString();
}
exports.readString = readString;
function writeBuffer(src, builder) {
if (src.length > 0) {
let bytes = Math.floor(builder.availableBits / 8);
if (src.length > bytes) {
let a = src.subarray(0, bytes);
let t = src.subarray(bytes);
builder = builder.storeBuffer(a);
let bb = (0, Builder_1.beginCell)();
writeBuffer(t, bb);
builder = builder.storeRef(bb.endCell());
}
else {
builder = builder.storeBuffer(src);
}
}
}
function stringToCell(src) {
let builder = (0, Builder_1.beginCell)();
writeBuffer(Buffer.from(src), builder);
return builder.endCell();
}
exports.stringToCell = stringToCell;
function writeString(src, builder) {
writeBuffer(Buffer.from(src), builder);
}
exports.writeString = writeString;