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29 lines
748 B
TypeScript
29 lines
748 B
TypeScript
import { RedisArgument } from './types';
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const CRLF = '\r\n';
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export default function encodeCommand(args: Array<RedisArgument>): Array<RedisArgument> {
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const toWrite: Array<RedisArgument> = [];
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let strings = '*' + args.length + CRLF;
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for (let i = 0; i < args.length; i++) {
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const arg = args[i];
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if (typeof arg === 'string') {
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strings += '$' + Buffer.byteLength(arg) + CRLF + arg + CRLF;
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} else if (arg instanceof Buffer) {
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toWrite.push(
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strings + '$' + arg.length.toString() + CRLF,
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arg
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);
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strings = CRLF;
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} else {
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throw new TypeError(`"arguments[${i}]" must be of type "string | Buffer", got ${typeof arg} instead.`);
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}
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}
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toWrite.push(strings);
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return toWrite;
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}
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