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          • 1.2. Change Process for the Adopted Guidance
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            • 4.3.1. Obligations in the Normal Course of Business
            • 4.3.2. Obligations Outside of the Normal Course of Business
              • 4.3.2.1. Amicable Wind Down Process
              • 4.3.2.2. Non-Amicable Wind Down Process
              • 4.3.2.3. Minter Insolvency
              • 4.3.2.4. Unauthorized Termination of Minter – SPV Operator Agreement
            • 4.3.3. Operational Obligations of SPV Operators
              • 4.3.3.1. Co-signature of the SPV for significant payments
              • 4.3.3.2. Cooperation with Validators
              • 4.3.3.3. Maintenance of Administrative Buffer
              • 4.3.3.4. No Wire Back Instructions
          • 4.4. Guidelines for Submission of Approval Requests
        • 5. Validators
          • 5.1. Contact Information of Currently Permissioned Validators
          • 5.2. Eligibility Criteria for Permissioned Validators
          • 5.3. Obligations of Validators
          • 5.4. Guidelines for Submission of Permissioning Requests
        • 6. BD Minters and Minters
          • 6.1. Contact Information of Currently Permissioned Minters
          • 6.2. Eligibility Criteria for Permissioned Minters
          • 6.3. Obligations of Minters
          • 6.4. BD Minter and Minter Compliance Requirements
          • 6.5. Guidelines for Submission of Permissioning Requests
        • Adopted Guidance PDF Version
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        • Adopted Guidance PDF Version
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              • castVote(proposalId, support): weight
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              • execute(targets[], values[], callDatas[], description): proposalId
              • setThresholdRatio(newThresholdRatio)
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            • Core Governance Proposals
          • 2.3 ZERO Governor
            • Variables And Getters
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        • 3. POWER Token
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Copyright 2025 M0 Foundation

On this page
  • Functions
  • permit
  • permit
  • PERMIT_TYPEHASH
  • Errors
  • InsufficientAllowance
  • InsufficientAmount
  • InvalidRecipient
  1. Technical Documentation
  2. Source Code Reference
  3. Common
  4. Contracts
  5. Interfaces

IERC20Extended

PreviousIERC20NextIERC3009

Inherits: IERC20, IERC3009

Author: M^0 Labs

The additional interface as defined by EIP-2612: https://eips.ethereum.org/EIPS/eip-2612

Functions

permit

Approves spender to spend up to amount of the token balance of owner, via a signature.

function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s)
    external;

Parameters

Name
Type
Description

owner

address

The address of the account who's token balance is being approved to be spent by spender.

spender

address

The address of an account allowed to spend on behalf of owner.

value

uint256

The amount of the allowance being approved.

deadline

uint256

The last block number where the signature is still valid.

v

uint8

An ECDSA secp256k1 signature parameter (EIP-2612 via EIP-712).

r

bytes32

An ECDSA secp256k1 signature parameter (EIP-2612 via EIP-712).

s

bytes32

An ECDSA secp256k1 signature parameter (EIP-2612 via EIP-712).

permit

Approves spender to spend up to amount of the token balance of owner, via a signature.

function permit(address owner, address spender, uint256 value, uint256 deadline, bytes memory signature) external;

Parameters

Name
Type
Description

owner

address

The address of the account who's token balance is being approved to be spent by spender.

spender

address

The address of an account allowed to spend on behalf of owner.

value

uint256

The amount of the allowance being approved.

deadline

uint256

The last block number where the signature is still valid.

signature

bytes

An arbitrary signature (EIP-712).

PERMIT_TYPEHASH

Returns the EIP712 typehash used in the encoding of the digest for the permit function.

function PERMIT_TYPEHASH() external view returns (bytes32);

Errors

InsufficientAllowance

Revert message when spender's allowance is not sufficient.

error InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

Parameters

Name
Type
Description

spender

address

Address that may be allowed to operate on tokens without being their owner.

allowance

uint256

Amount of tokens a spender is allowed to operate with.

needed

uint256

Minimum amount required to perform a transfer.

InsufficientAmount

Revert message emitted when the transferred amount is insufficient.

error InsufficientAmount(uint256 amount);

Parameters

Name
Type
Description

amount

uint256

Amount transferred.

InvalidRecipient

Revert message emitted when the recipient of a token is invalid.

error InvalidRecipient(address recipient);

Parameters

Name
Type
Description

recipient

address

Address of the invalid recipient.

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