Add ERC7579 modules

[ernestognw]

Follow up to #5890 and #5891

PR Checklist

• Tests
• Documentation
• Changeset entry (run npx changeset add)

Summary by Sourcery

Add a suite of ERC-7579 modules including basic and delayed executors, a validator abstraction with signature and multisig implementations (including weighted variants), along with mocks, tests, documentation updates, enum extensions, and changeset entries

New Features:

• Add ERC7579Executor module for basic on-chain operation execution
• Add ERC7579DelayedExecutor extension with scheduling, delay, expiration, and cancellation support
• Add ERC7579Validator abstract base and ERC7579Signature concrete module for ERC-7913 signature validation
• Add ERC7579Multisig multisig validator module and ERC7579MultisigWeighted extension for weighted multisignatures

Enhancements:

• Provide mock contracts, extensive test coverage, and account module behavior fixtures for all new modules
• Update enums helper and documentation navigation to include new ERC-7579 modules

Documentation:

• Add AsciiDoc entries and navigation links for the new modules under docs/modules

Tests:

• Add comprehensive test suites for executor, delayed executor, signature validator, multisig, and weighted multisig modules

Chores:

• Include changeset entries for versioning each newly added module

[changeset-bot]

🦋 Changeset detected

Latest commit: 16e9e2c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
openzeppelin-solidity	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[sourcery-ai]

Reviewer's Guide

This PR introduces the ERC-7579 framework by adding a core executor module with execute support, a delayed executor extension with scheduling/expiration, an abstract validator base plus a concrete ERC-7913 signature validator, and both basic and weighted multisig modules, together with mocks, comprehensive tests, updated enums, documentation entries, and changeset metadata.

Sequence diagram for delayed operation scheduling and execution (ERC7579DelayedExecutor)

sequenceDiagram
    actor User
    participant Account
    participant ERC7579DelayedExecutor
    User->>ERC7579DelayedExecutor: schedule(account, salt, mode, data)
    ERC7579DelayedExecutor->>Account: validate schedule (custom logic)
    ERC7579DelayedExecutor->>ERC7579DelayedExecutor: store Schedule
    Note over ERC7579DelayedExecutor: Wait for delay period
    User->>ERC7579DelayedExecutor: execute(account, salt, mode, executionCalldata)
    ERC7579DelayedExecutor->>ERC7579DelayedExecutor: check operation state (Ready)
    ERC7579DelayedExecutor->>Account: executeFromExecutor(mode, executionCalldata)

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Sequence diagram for multisig validation during operation (ERC7579Multisig)

sequenceDiagram
    actor User
    participant Account
    participant ERC7579Multisig
    User->>ERC7579Multisig: execute(account, salt, mode, data)
    ERC7579Multisig->>ERC7579Multisig: decode signers and signatures
    ERC7579Multisig->>ERC7579Multisig: validate threshold
    ERC7579Multisig->>ERC7579Multisig: validate signatures
    ERC7579Multisig->>Account: executeFromExecutor(mode, executionCalldata)

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Class diagram for new and updated ERC7579 modules

classDiagram
    class ERC7579Executor {
        +execute(account, salt, mode, data)
        +isModuleType(moduleTypeId)
        #_validateExecution(account, salt, mode, data)
        #_execute(account, mode, salt, executionCalldata)
    }
    class ERC7579DelayedExecutor {
        +schedule(account, salt, mode, data)
        +cancel(account, salt, mode, data)
        +setDelay(newDelay)
        +setExpiration(newExpiration)
        +onInstall(initData)
        +onUninstall(data)
        #_validateSchedule(account, salt, mode, data)
        #_validateCancel(account, salt, mode, data)
        #_setDelay(account, newDelay, minimumSetback)
        #_setExpiration(account, newExpiration)
        #_scheduleAt(account, salt, mode, executionCalldata, timepoint, delay)
        #_execute(account, salt, mode, executionCalldata)
        #_cancel(account, mode, executionCalldata, salt)
        #_validateStateBitmap(operationId, allowedStates)
        #_encodeStateBitmap(operationState)
        +state(account, salt, mode, executionCalldata)
        +getDelay(account)
        +getExpiration(account)
        +getSchedule(account, salt, mode, executionCalldata)
        +hashOperation(account, salt, mode, executionCalldata)
    }
    class ERC7579Validator {
        +isModuleType(moduleTypeId)
        +validateUserOp(userOp, userOpHash)
        +isValidSignatureWithSender(sender, hash, signature)
        #_rawERC7579Validation(account, hash, signature)
    }
    class ERC7579Signature {
        +signer(account)
        +onInstall(data)
        +onUninstall(data)
        +setSigner(signer_)
        #_setSigner(account, signer_)
        #_rawERC7579Validation(account, hash, signature)
    }
    class ERC7579Multisig {
        +onInstall(initData)
        +onUninstall(data)
        +getSigners(account, start, end)
        +getSignerCount(account)
        +isSigner(account, signer)
        +threshold(account)
        +addSigners(newSigners)
        +removeSigners(oldSigners)
        +setThreshold(newThreshold)
        #_addSigners(account, newSigners)
        #_removeSigners(account, oldSigners)
        #_setThreshold(account, newThreshold)
        #_validateReachableThreshold(account)
        #_validateSignatures(account, hash, signingSigners, signatures)
        #_validateThreshold(account, validatingSigners)
        #_rawERC7579Validation(account, hash, signature)
    }
    class ERC7579MultisigWeighted {
        +signerWeight(account, signer)
        +totalWeight(account)
        +setSignerWeights(signers, weights)
        #_setSignerWeights(account, signers, weights)
        #_addSigners(account, newSigners)
        #_removeSigners(account, oldSigners)
        #_validateReachableThreshold(account)
        #_validateThreshold(account, validatingSigners)
    }
    ERC7579DelayedExecutor --|> ERC7579Executor
    ERC7579Signature --|> ERC7579Validator
    ERC7579Multisig --|> ERC7579Validator
    ERC7579MultisigWeighted --|> ERC7579Multisig

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File-Level Changes

Change	Details	Files
Implement core executor functionality	Add ERC7579Executor contract with execute and event emission Provide _validateExecution hook for authorization Create executor mock and write basic execution tests	contracts/account/modules/ERC7579Executor.sol contracts/mocks/account/modules/ERC7579ExecutorMocks.sol test/account/modules/ERC7579Executor.test.js
Add delayed executor extension	Define ERC7579DelayedExecutor with scheduling, delay, expiration, cancel logic Manage operation state via enum and bitmap validation Update enums, add README section and nav entry, and write delayed executor tests	contracts/account/modules/ERC7579DelayedExecutor.sol contracts/mocks/account/modules/ERC7579DelayedExecutorMock.sol test/account/modules/ERC7579DelayedExecutor.test.js test/helpers/enums.js contracts/account/README.adoc docs/modules/ROOT/nav.adoc
Introduce abstract validator and signature module	Add ERC7579Validator base implementing validateUserOp and isValidSignatureWithSender Implement ERC7579Signature for ERC-7913 signer storage and signature checking Write validator and signature module tests	contracts/account/modules/ERC7579Validator.sol contracts/account/modules/ERC7579Signature.sol test/account/modules/ERC7579Validator.test.js test/account/modules/ERC7579SignatureValidator.test.js
Implement multisig modules	Add ERC7579Multisig supporting signer set and threshold enforcement Extend to ERC7579MultisigWeighted with per-signer weights and total weight tracking Provide mocks and write multisig and weighted-multisig tests	contracts/account/modules/ERC7579Multisig.sol contracts/account/modules/ERC7579MultisigWeighted.sol contracts/mocks/account/modules/ERC7579MultisigMocks.sol test/account/modules/ERC7579Multisig.test.js test/account/modules/ERC7579MultisigWeighted.test.js
Update enums, docs and changesets	Register new ERC7579OperationState in test enums Add changeset entries for each module Expand documentation nav and account README	test/helpers/enums.js .changeset/free-waves-draw.md .changeset/pink-loops-jump.md .changeset/solid-squids-cough.md .changeset/weak-chefs-open.md .changeset/wild-masks-worry.md .changeset/yummy-ideas-stay.md docs/modules/ROOT/nav.adoc

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[Amxx]

We should create an issue that is tracking the progress of this migration, with subtasks for each module. Then we do multiple smaller PRs with 1 (or 2 in the case of ERC7579Multisig / ERC7579MultisigWeighted) module per PR.

Big PRs like this are hard to review, and will last forever it we don't split them into small easily attainable tasks

[ernestognw]

Yes that makes sense. I still think it helps opening the full PR to check the CI and plan how to tackle the migration while this PR gets progressively smaller

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