## Summary
- Fixed `ProxyType` enum in the Solidity Proxy precompile interface to
match the runtime definition
- Removed non-existent `AuthorMapping` variant
- Added missing `SudoOnly` variant
## Problem
The Solidity interface in `Proxy.sol` had incorrect `ProxyType` enum
values that didn't match the runtime definition:
| Index | Runtime (Correct) | Solidity (Was) |
|-------|------------------|----------------|
| 0 | Any | Any |
| 1 | NonTransfer | NonTransfer |
| 2 | Governance | Governance |
| 3 | Staking | Staking |
| 4 | CancelProxy | CancelProxy |
| 5 | Balances | Balances |
| 6 | **IdentityJudgement** | **AuthorMapping** ❌ |
| 7 | **SudoOnly** | **IdentityJudgement** ❌ |
This mismatch would cause EVM users calling the Proxy precompile with
`IdentityJudgement` (index 7 in Solidity) to actually get `SudoOnly`
behavior, and `AuthorMapping` (index 6) would fail to decode entirely
since it doesn't exist in the runtime.
## Solution
Updated the Solidity enum to match the runtime:
```solidity
enum ProxyType {
Any,
NonTransfer,
Governance,
Staking,
CancelProxy,
Balances,
IdentityJudgement,
SudoOnly
}
```
## ⚠️ Breaking Changes ⚠️
- **`ProxyType.AuthorMapping` removed**: This variant never existed in
the runtime and would fail to decode.
- **`ProxyType.IdentityJudgement` index changed**: Moved from index 7 to
index 6. Solidity code using `ProxyType.IdentityJudgement` will now work
correctly (previously it mapped to `SudoOnly` in the runtime)
- **`ProxyType.SudoOnly` added**: New variant at index 7 for proxies
that can only execute Sudo pallet calls
## Test plan
- [x] Proxy precompile tests pass (32/32)
- [x] Mainnet runtime proxy tests pass (22/22)
- [x] Governance proxy tests pass (6/6)
- [x] Verified `InstanceFilter<RuntimeCall>` implementation handles all
8 variants correctly
- [x] Verified `EvmProxyCallFilter` implementation handles all 8
variants correctly
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
