Class: ApproveToken

Defined in: cct/evm/token/operations/approve-token.ts:51

Grants an ERC-20 allowance — e.g. a rebalancer approving a LockRelease pool before a deposit.

Extends

• EVMOperation<ApproveTokenParams>

Constructors

Constructor

new ApproveToken(): ApproveToken

Returns

ApproveToken

Inherited from

EVMOperation<ApproveTokenParams>.constructor

Properties

name

readonly name: "approveToken" = 'approveToken'

Defined in: cct/evm/token/operations/approve-token.ts:52

camelCase id; matches the token-manager facade method and error context.

Overrides

EVMOperation.name

Methods

buildUnsigned()

protected buildUnsigned(_chain: EVMChain, __namedParameters: ApproveTokenParams): UnsignedEVMTx

Defined in: cct/evm/token/operations/approve-token.ts:67

Encodes approve with no chain access at all — there is no version to resolve and nothing about the caller's balance to check, since an ERC-20 allows approving more than is held.

Parameters

Parameter	Type
_chain	EVMChain
__namedParameters	ApproveTokenParams

Returns

UnsignedEVMTx

Overrides

EVMOperation.buildUnsigned

---

execute()

execute(chain: EVMChain, params: EVMExecuteParams<ApproveTokenParams>): Promise<TransactionResult>

Defined in: cct/evm/operation.ts:150

generate, then sign and submit; returns the confirmed tx hash.

Parameters

Parameter	Type
chain	EVMChain
params	EVMExecuteParams<ApproveTokenParams>

Returns

Promise<TransactionResult>

Inherited from

EVMOperation.execute

---

generate()

generate(chain: EVMChain, params: ApproveTokenParams): Promise<UnsignedEVMTx>

Defined in: cct/evm/operation.ts:110

Run prepare and buildUnsigned, applying optional sender; no signing.

Parameters

Parameter	Type
chain	EVMChain
params	ApproveTokenParams

Returns

Promise<UnsignedEVMTx>

Remarks

Also pins every built transaction to chain.network.chainId (no RPC, known at construction). This is the one point every CCT builder and both execute paths pass through; unpinned, ethers would infer the chain from the eventual signer's provider.

Inherited from

EVMOperation.generate

---

prepare()

protected prepare(params: ApproveTokenParams): ApproveTokenParams

Defined in: cct/evm/token/operations/approve-token.ts:55

Validates both addresses and the amount before any RPC; a zero amount revokes.

Parameters

Parameter	Type
params	ApproveTokenParams

Returns

ApproveTokenParams

Overrides

EVMOperation.prepare

---

resolveWalletSender()

protected resolveWalletSender(wallet: unknown, sender?: string): Promise<string>

Defined in: cct/evm/operation.ts:130

Resolves the address a signed submission is authorized against: the signing wallet's own. The chain gates on msg.sender, and submit clears any builder-set tx.from before populating the tx (so ethers' own from/signer guard never fires) — an explicit sender that differs from the wallet would therefore let an op's pre-tx checks authorize one address while a different one actually signs, passing every local guard and reverting on-chain. Ops that gate on an on-chain role call this from execute; build with generateUnsigned* instead when the eventual signer isn't known yet, where sender is trusted as given.

Parameters

Parameter	Type
wallet	unknown
sender?	string

Returns

Promise<string>

Throws

CCIPWalletInvalidError if wallet is not a valid signer

Throws

CCTParamsInvalidError if sender is given and is not the wallet's address

Inherited from

EVMOperation.resolveWalletSender