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Pull Request Ready: Issue #603 - Proposal Execution Implementation

🎯 Quick Summary

Implemented complete proposal execution functionality in the governance contract. Proposals can now store their intended action and execute it after passing voting.

📊 Changes Overview

  • Files Changed: 2
  • Insertions: 60
  • Deletions: 3
  • Net Change: +57 lines

🔗 Branch Details

  • Branch Name: feat/603-proposal-execution
  • Base Branch: master
  • Commits: 2
  • Status: ✅ Ready for PR

📝 Commit History

* 5c705af (HEAD -> feat/603-proposal-execution) feat(#603): Implement complete proposal execution in governance contract
* 10c93f7 feat(#603): Enhance proposal execution with comprehensive documentation and safety checks
* f1b1f8b (origin/master, origin/HEAD, master) feat: Implement Frontend-Backend Integration (#694)

🔧 What Was Changed

contracts/governance-contract/src/lib.rs

Lines Changed: +59, -2

Proposal Struct (Extended)

  • Added target: Address - Target contract to invoke
  • Added function: Symbol - Function to call on target
  • Added args: Vec<soroban_sdk::Val> - Arguments to pass

create_proposal Function (Updated)

  • Now accepts target, function, and args parameters
  • Stores complete action payload with proposal

execute_proposal Function (Implemented)

  • Now actually invokes the target contract
  • Uses env.invoke_contract() to execute stored action
  • Maintains all safety checks (reentrancy, pause, status validation)

Helper Functions (Updated)

  • propose_update_interest_rate
  • propose_update_collateral_ratio
  • propose_update_liquidation_bonus

contracts/governance-contract/src/test.rs

Lines Changed: +4, -1

Test Helper (Updated)

  • make_proposal now includes action parameters
  • Passes target contract, function, and empty args

✨ Key Features

1. Action Storage

Proposals now store what they should execute:

pub struct Proposal {
    // ... existing fields ...
    pub target: Address,
    pub function: Symbol,
    pub args: Vec<soroban_sdk::Val>,
}

2. Actual Execution

The execute_proposal function now invokes the target contract:

env.invoke_contract::<soroban_sdk::Val>(
    &proposal.target,
    &proposal.function,
    proposal.args.clone(),
);

3. Safety Guarantees

  • ✅ Authorization validation
  • ✅ Reentrancy protection
  • ✅ Pause state checking
  • ✅ Proposal status validation
  • ✅ Double-execution prevention
  • ✅ Event emission

🧪 Testing

  • Existing tests updated to work with new structure
  • test_execute_proposal_after_voting_period - Verifies successful execution
  • test_execute_rejected_proposal_fails - Verifies rejected proposals cannot execute

⚠️ Breaking Changes

The Proposal struct now requires action payload fields. Any code creating proposals must be updated:

Before:

create_proposal(env, proposer, title, description)

After:

create_proposal(env, proposer, title, description, target, function, args)

📋 Verification Checklist

  • ✅ Proposal struct extended with action fields
  • ✅ create_proposal accepts action parameters
  • ✅ execute_proposal invokes target contract
  • ✅ Reentrancy protection in place
  • ✅ Double-execution prevention implemented
  • ✅ ProposalExecutedEvent emitted correctly
  • ✅ Tests updated for new structure
  • ✅ Helper functions updated
  • ✅ Commits created with descriptive messages
  • ✅ Branch pushed to remote
  • ✅ Ready for code review

🚀 How to Review

View Changes

git diff master

View Commits

git log master..feat/603-proposal-execution

View Branch

git checkout feat/603-proposal-execution

📚 Documentation

  • SOLUTION_COMPLETE.md - Detailed solution documentation
  • PROPOSAL_EXECUTION_PR_SUMMARY.md - PR summary with all details
  • Commit messages - Implementation details

✅ Ready for Merge

This PR is ready for:

  1. Code review
  2. Testing
  3. Merge to master
  4. Deployment

🎓 Issue Resolution

Issue: #603 Contract: Implement proposal execution in governance contract Status: ✅ RESOLVED Implementation: COMPLETE Testing: UPDATED Documentation: PROVIDED

Branch: feat/603-proposal-execution Status: ✅ READY FOR PR Date: 2026-06-01