@solana/codecs-numbers
Version:
Codecs for numbers of different sizes and endianness
75 lines • 2.34 kB
TypeScript
import { FixedSizeCodec, FixedSizeDecoder, FixedSizeEncoder } from '@solana/codecs-core';
/**
* Returns an encoder for 8-bit signed integers (`i8`).
*
* This encoder serializes `i8` values using 1 byte.
* Values can be provided as either `number` or `bigint`.
*
* For more details, see {@link getI8Codec}.
*
* @returns A `FixedSizeEncoder<number | bigint, 1>` for encoding `i8` values.
*
* @example
* Encoding an `i8` value.
* ```ts
* const encoder = getI8Encoder();
* const bytes = encoder.encode(-42); // 0xd6
* ```
*
* @see {@link getI8Codec}
*/
export declare const getI8Encoder: () => FixedSizeEncoder<bigint | number, 1>;
/**
* Returns a decoder for 8-bit signed integers (`i8`).
*
* This decoder deserializes `i8` values from 1 byte.
* The decoded value is always a `number`.
*
* For more details, see {@link getI8Codec}.
*
* @returns A `FixedSizeDecoder<number, 1>` for decoding `i8` values.
*
* @example
* Decoding an `i8` value.
* ```ts
* const decoder = getI8Decoder();
* const value = decoder.decode(new Uint8Array([0xd6])); // -42
* ```
*
* @see {@link getI8Codec}
*/
export declare const getI8Decoder: () => FixedSizeDecoder<number, 1>;
/**
* Returns a codec for encoding and decoding 8-bit signed integers (`i8`).
*
* This codec serializes `i8` values using 1 byte.
* Values can be provided as either `number` or `bigint`, but the decoded value is always a `number`.
*
* @returns A `FixedSizeCodec<number | bigint, number, 1>` for encoding and decoding `i8` values.
*
* @example
* Encoding and decoding an `i8` value.
* ```ts
* const codec = getI8Codec();
* const bytes = codec.encode(-42); // 0xd6
* const value = codec.decode(bytes); // -42
* ```
*
* @remarks
* This codec supports values between `-2^7` (`-128`) and `2^7 - 1` (`127`).
*
* - If you need a larger signed integer, consider using {@link getI16Codec}.
* - If you need an unsigned integer, consider using {@link getU8Codec}.
*
* Separate {@link getI8Encoder} and {@link getI8Decoder} functions are available.
*
* ```ts
* const bytes = getI8Encoder().encode(-42);
* const value = getI8Decoder().decode(bytes);
* ```
*
* @see {@link getI8Encoder}
* @see {@link getI8Decoder}
*/
export declare const getI8Codec: () => FixedSizeCodec<bigint | number, number, 1>;
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