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test: add Layout.rustString()

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This commit is contained in:
Michael Vines
2018-10-10 14:16:07 -07:00
parent a2d785398c
commit 715556a611
2 changed files with 38 additions and 39 deletions
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43
web3.js/src/token-program.js
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@ -16,41 +16,6 @@ import {
import {sendAndConfirmTransaction} from './util/send-and-confirm-transaction';
import type {Connection} from '.';
/**
* @private
*/
const RustStringLayout = (property: string = 'rustString') => {
const lengthLayout = BufferLayout.u8('length');
const rsl = BufferLayout.struct(
[
lengthLayout,
BufferLayout.seq(BufferLayout.u8(), 7, 'u8 into u64 padding'), // TODO: avoid padding
BufferLayout.blob(
BufferLayout.offset(lengthLayout, -8),
'chars',
),
],
property,
);
const _decode = rsl.decode.bind(rsl);
const _encode = rsl.encode.bind(rsl);
rsl.decode = (buffer, offset) => {
const data = _decode(buffer, offset);
return data.chars.toString('utf8');
};
rsl.encode = (str, buffer, offset) => {
const data = {
chars: Buffer.from(str, 'utf8'),
};
return _encode(data, buffer, offset);
};
return rsl;
};
/**
* Some amount of tokens
*/
@ -115,8 +80,8 @@ type TokenInfo = {
const TokenInfoLayout = BufferLayout.struct([
Layout.uint64('supply'),
BufferLayout.u8('decimals'),
new RustStringLayout('name'),
new RustStringLayout('symbol'),
Layout.rustString('name'),
Layout.rustString('symbol'),
]);
/**
@ -216,8 +181,8 @@ export class Token {
BufferLayout.u32('instruction'),
Layout.uint64('supply'),
BufferLayout.u8('decimals'),
new RustStringLayout('name'),
new RustStringLayout('symbol'),
Layout.rustString('name'),
Layout.rustString('symbol'),
]);
let userdata = Buffer.alloc(1024);