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ReturnData

Branded Uint8Array representing raw, uninterpreted return data from contract execution.

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Type

type ReturnDataType = Uint8Array & { readonly [brand]: "ReturnData" };

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Construction

import * as ReturnData from '@tevm/voltaire/primitives/ReturnData';

// From hex string
const data = ReturnData.fromHex("0x00000001");

// From bytes
const bytes = new Uint8Array([0, 0, 0, 1]);
const data = ReturnData.from(bytes);

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Methods

  • from(value) - Universal constructor (hex or bytes)
  • fromHex(hex) - From hex string
  • fromBytes(bytes) - From Uint8Array
  • toHex(data) - Convert to hex string
  • toBytes(data) - Convert to Uint8Array
  • equals(a, b) - Compare equality
  • isEmpty(data) - Check if empty

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Example

import * as ReturnData from '@tevm/voltaire/primitives/ReturnData';

// Parse contract return data
const returnData = ReturnData.fromHex("0x0000000000000000000000000000000000000000000000000000000000000001");

if (!ReturnData.isEmpty(returnData)) {
  console.log("Data:", ReturnData.toHex(returnData));
}