InvalidBeginSubError

Represents an invalid bytecode/contract error that occurs when an invalid BEGINSUB operation is executed within the EVM.

Invalid BEGINSUB errors can occur due to:

• Incorrect use of the BEGINSUB opcode.
• Bugs in the smart contract code causing invalid subroutine execution.

To debug an invalid BEGINSUB error:

1. Review Subroutine Logic: Ensure that the BEGINSUB opcode is used correctly within subroutine definitions.
2. Use TEVM Tracing: Utilize TEVM tracing to step through the contract execution and identify where the invalid BEGINSUB occurs.

Example

import { InvalidBeginSubError } from '@tevm/errors'
try {
  // Some operation that can throw an InvalidBeginSubError
} catch (error) {
  if (error instanceof InvalidBeginSubError) {
    console.error(error.message);
    // Handle the invalid BEGINSUB error
  }
}

Param

A human-readable error message.

Param

Additional parameters for the BaseError.

Extends

• ExecutionError

Constructors

new InvalidBeginSubError()

new InvalidBeginSubError(message?, args?, tag?): InvalidBeginSubError

Constructs an InvalidBeginSubError. Represents an invalid bytecode/contract error that occurs when an invalid BEGINSUB operation is executed within the EVM.

Invalid BEGINSUB errors can occur due to:

• Incorrect use of the BEGINSUB opcode.
• Bugs in the smart contract code causing invalid subroutine execution.

To debug an invalid BEGINSUB error:

1. Review Subroutine Logic: Ensure that the BEGINSUB opcode is used correctly within subroutine definitions.
2. Use TEVM Tracing: Utilize TEVM tracing to step through the contract execution and identify where the invalid BEGINSUB occurs.

Parameters

• message?: string = 'Invalid BEGINSUB error occurred.'

Human-readable error message.

• args?: InvalidBeginSubErrorParameters = {}

Additional parameters for the BaseError.

• tag?: string = 'InvalidBeginSubError'

The tag for the error.

Returns

InvalidBeginSubError

Overrides

ExecutionError.constructor

Defined in

packages/errors/src/ethereum/ethereumjs/InvalidBeginSubError.js:68

Properties

_tag

_tag: string

Same as name, used internally.

Inherited from

ExecutionError._tag

Defined in

packages/errors/src/ethereum/BaseError.js:81

---

cause

cause: any

Inherited from

ExecutionError.cause

Defined in

packages/errors/src/ethereum/BaseError.js:113

---

code

code: number

Error code, analogous to the code in JSON RPC error.

Inherited from

ExecutionError.code

Defined in

packages/errors/src/ethereum/BaseError.js:111

---

details

details: string

Inherited from

ExecutionError.details

Defined in

packages/errors/src/ethereum/BaseError.js:90

---

docsPath

docsPath: undefined | string

Path to the documentation for this error.

Inherited from

ExecutionError.docsPath

Defined in

packages/errors/src/ethereum/BaseError.js:95

---

message

message: string

Human-readable error message.

Inherited from

ExecutionError.message

Defined in

node_modules/.pnpm/typescript@5.5.2/node_modules/typescript/lib/lib.es5.d.ts:1077

---

metaMessages

metaMessages: undefined | string[]

Additional meta messages for more context.

Inherited from

ExecutionError.metaMessages

Defined in

packages/errors/src/ethereum/BaseError.js:99

---

name

name: string

The name of the error, used to discriminate errors.

Inherited from

ExecutionError.name

Defined in

node_modules/.pnpm/typescript@5.5.2/node_modules/typescript/lib/lib.es5.d.ts:1076

---

shortMessage

shortMessage: string

Inherited from

ExecutionError.shortMessage

Defined in

packages/errors/src/ethereum/BaseError.js:103

---

stack?

optional stack: string

Inherited from

ExecutionError.stack

Defined in

node_modules/.pnpm/typescript@5.5.2/node_modules/typescript/lib/lib.es5.d.ts:1078

---

version

version: string

Inherited from

ExecutionError.version

Defined in

packages/errors/src/ethereum/BaseError.js:107

---

EVMErrorMessage

static EVMErrorMessage: EvmErrorMessage = EVMErrorMessage.INVALID_BEGINSUB

Defined in

packages/errors/src/ethereum/ethereumjs/InvalidBeginSubError.js:51

---

prepareStackTrace()?

static optional prepareStackTrace: (err, stackTraces) => any

Optional override for formatting stack traces

See

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Parameters

• err: Error

• stackTraces: CallSite[]

Returns

any

Inherited from

ExecutionError.prepareStackTrace

Defined in

node_modules/.pnpm/@types+node@20.14.8/node_modules/@types/node/globals.d.ts:28

---

stackTraceLimit

static stackTraceLimit: number

Inherited from

ExecutionError.stackTraceLimit

Defined in

node_modules/.pnpm/@types+node@20.14.8/node_modules/@types/node/globals.d.ts:30

Methods

walk()

walk(fn?): unknown

Walks through the error chain.

Parameters

• fn?: Function

A function to execute on each error in the chain.

Returns

unknown

The first error that matches the function, or the original error.

Inherited from

ExecutionError.walk

Defined in

packages/errors/src/ethereum/BaseError.js:136

---

captureStackTrace()

captureStackTrace(targetObject, constructorOpt)

static captureStackTrace(targetObject, constructorOpt?): void

Create .stack property on a target object

Parameters

• targetObject: object

• constructorOpt?: Function

Returns

void

Inherited from

ExecutionError.captureStackTrace

Defined in

node_modules/.pnpm/@types+node@20.14.8/node_modules/@types/node/globals.d.ts:21

captureStackTrace(targetObject, constructorOpt)

static captureStackTrace(targetObject, constructorOpt?): void

Create .stack property on a target object

Parameters

• targetObject: object

• constructorOpt?: Function

Returns

void

Inherited from

ExecutionError.captureStackTrace

Defined in

node_modules/.pnpm/@types+node@22.1.0/node_modules/@types/node/globals.d.ts:22

captureStackTrace(targetObject, constructorOpt)

static captureStackTrace(targetObject, constructorOpt?): void

Create .stack property on a target object

Parameters

• targetObject: object

• constructorOpt?: Function

Returns

void

Inherited from

ExecutionError.captureStackTrace

Defined in

node_modules/.pnpm/bun-types@1.1.18/node_modules/bun-types/globals.d.ts:1613

captureStackTrace(targetObject, constructorOpt)

static captureStackTrace(targetObject, constructorOpt?): void

Create .stack property on a target object

Parameters

• targetObject: object

• constructorOpt?: Function

Returns

void

Inherited from

ExecutionError.captureStackTrace

Defined in

node_modules/.pnpm/@types+node@20.12.14/node_modules/@types/node/globals.d.ts:21