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• .. (вверх)
• [DIR] ..
• [FILE] blobsToCommitments.js
• [FILE] blobsToCommitments.js.map
• [FILE] blobsToProofs.js
• [FILE] blobsToProofs.js.map
• [FILE] commitmentToVersionedHash.js
• [FILE] commitmentToVersionedHash.js.map
• [FILE] commitmentsToVersionedHashes.js
• [FILE] commitmentsToVersionedHashes.js.map
• [FILE] fromBlobs.js
• [FILE] fromBlobs.js.map
• [FILE] sidecarsToVersionedHashes.js
• [FILE] sidecarsToVersionedHashes.js.map
• [FILE] toBlobSidecars.js
• [FILE] toBlobSidecars.js.map
• [FILE] toBlobs.js
• [FILE] toBlobs.js.map

Просмотр файла: toBlobs.js

import { bytesPerBlob, bytesPerFieldElement, fieldElementsPerBlob, maxBytesPerTransaction, } from '../../constants/blob.js';
import { BlobSizeTooLargeError, EmptyBlobError, } from '../../errors/blob.js';
import { createCursor } from '../cursor.js';
import { size } from '../data/size.js';
import { hexToBytes } from '../encoding/toBytes.js';
import { bytesToHex } from '../encoding/toHex.js';
/**
 * Transforms arbitrary data to blobs.
 *
 * @example
 * ```ts
 * import { toBlobs, stringToHex } from 'viem'
 *
 * const blobs = toBlobs({ data: stringToHex('hello world') })
 * ```
 */
export function toBlobs(parameters) {
    const to = parameters.to ?? (typeof parameters.data === 'string' ? 'hex' : 'bytes');
    const data = (typeof parameters.data === 'string'
        ? hexToBytes(parameters.data)
        : parameters.data);
    const size_ = size(data);
    if (!size_)
        throw new EmptyBlobError();
    if (size_ > maxBytesPerTransaction)
        throw new BlobSizeTooLargeError({
            maxSize: maxBytesPerTransaction,
            size: size_,
        });
    const blobs = [];
    let active = true;
    let position = 0;
    while (active) {
        const blob = createCursor(new Uint8Array(bytesPerBlob));
        let size = 0;
        while (size < fieldElementsPerBlob) {
            const bytes = data.slice(position, position + (bytesPerFieldElement - 1));
            // Push a zero byte so the field element doesn't overflow the BLS modulus.
            blob.pushByte(0x00);
            // Push the current segment of data bytes.
            blob.pushBytes(bytes);
            // If we detect that the current segment of data bytes is less than 31 bytes,
            // we can stop processing and push a terminator byte to indicate the end of the blob.
            if (bytes.length < 31) {
                blob.pushByte(0x80);
                active = false;
                break;
            }
            size++;
            position += 31;
        }
        blobs.push(blob);
    }
    return (to === 'bytes'
        ? blobs.map((x) => x.bytes)
        : blobs.map((x) => bytesToHex(x.bytes)));
}
//# sourceMappingURL=toBlobs.js.map

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