contracts-bedrock: delete dead code

The `GasPriceOracle` contract no longer uses the events
that were defined in it. This commit deletes the events
and adds a comment noting that they existed before bedrock.

op-bindings/bindings/gaspriceoracle.go

@@ -30,7 +30,7 @@ var (
 
 // GasPriceOracleMetaData contains all meta data concerning the GasPriceOracle contract.
 var GasPriceOracleMetaData = &bind.MetaData{
-	ABI: "[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"decimals\",\"type\":\"uint256\"}],\"name\":\"DecimalsUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"overhead\",\"type\":\"uint256\"}],\"name\":\"OverheadUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"scalar\",\"type\":\"uint256\"}],\"name\":\"ScalarUpdated\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"baseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"gasPrice\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"getL1Fee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"getL1GasUsed\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l1BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"overhead\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"scalar\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
+	ABI: "[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[],\"name\":\"baseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"gasPrice\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"getL1Fee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"getL1GasUsed\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l1BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"overhead\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"scalar\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
 	Bin: 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 }
 
@@ -479,405 +479,3 @@ func (_GasPriceOracle *GasPriceOracleSession) Version() (string, error) {
 func (_GasPriceOracle *GasPriceOracleCallerSession) Version() (string, error) {
 	return _GasPriceOracle.Contract.Version(&_GasPriceOracle.CallOpts)
 }
-
-// GasPriceOracleDecimalsUpdatedIterator is returned from FilterDecimalsUpdated and is used to iterate over the raw logs and unpacked data for DecimalsUpdated events raised by the GasPriceOracle contract.
-type GasPriceOracleDecimalsUpdatedIterator struct {
-	Event *GasPriceOracleDecimalsUpdated // Event containing the contract specifics and raw log
-
-	contract *bind.BoundContract // Generic contract to use for unpacking event data
-	event    string              // Event name to use for unpacking event data
-
-	logs chan types.Log        // Log channel receiving the found contract events
-	sub  ethereum.Subscription // Subscription for errors, completion and termination
-	done bool                  // Whether the subscription completed delivering logs
-	fail error                 // Occurred error to stop iteration
-}
-
-// Next advances the iterator to the subsequent event, returning whether there
-// are any more events found. In case of a retrieval or parsing error, false is
-// returned and Error() can be queried for the exact failure.
-func (it *GasPriceOracleDecimalsUpdatedIterator) Next() bool {
-	// If the iterator failed, stop iterating
-	if it.fail != nil {
-		return false
-	}
-	// If the iterator completed, deliver directly whatever's available
-	if it.done {
-		select {
-		case log := <-it.logs:
-			it.Event = new(GasPriceOracleDecimalsUpdated)
-			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
-				it.fail = err
-				return false
-			}
-			it.Event.Raw = log
-			return true
-
-		default:
-			return false
-		}
-	}
-	// Iterator still in progress, wait for either a data or an error event
-	select {
-	case log := <-it.logs:
-		it.Event = new(GasPriceOracleDecimalsUpdated)
-		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
-			it.fail = err
-			return false
-		}
-		it.Event.Raw = log
-		return true
-
-	case err := <-it.sub.Err():
-		it.done = true
-		it.fail = err
-		return it.Next()
-	}
-}
-
-// Error returns any retrieval or parsing error occurred during filtering.
-func (it *GasPriceOracleDecimalsUpdatedIterator) Error() error {
-	return it.fail
-}
-
-// Close terminates the iteration process, releasing any pending underlying
-// resources.
-func (it *GasPriceOracleDecimalsUpdatedIterator) Close() error {
-	it.sub.Unsubscribe()
-	return nil
-}
-
-// GasPriceOracleDecimalsUpdated represents a DecimalsUpdated event raised by the GasPriceOracle contract.
-type GasPriceOracleDecimalsUpdated struct {
-	Decimals *big.Int
-	Raw      types.Log // Blockchain specific contextual infos
-}
-
-// FilterDecimalsUpdated is a free log retrieval operation binding the contract event 0xd68112a8707e326d08be3656b528c1bcc5bbbfc47f4177e2179b14d8640838c1.
-//
-// Solidity: event DecimalsUpdated(uint256 decimals)
-func (_GasPriceOracle *GasPriceOracleFilterer) FilterDecimalsUpdated(opts *bind.FilterOpts) (*GasPriceOracleDecimalsUpdatedIterator, error) {
-
-	logs, sub, err := _GasPriceOracle.contract.FilterLogs(opts, "DecimalsUpdated")
-	if err != nil {
-		return nil, err
-	}
-	return &GasPriceOracleDecimalsUpdatedIterator{contract: _GasPriceOracle.contract, event: "DecimalsUpdated", logs: logs, sub: sub}, nil
-}
-
-// WatchDecimalsUpdated is a free log subscription operation binding the contract event 0xd68112a8707e326d08be3656b528c1bcc5bbbfc47f4177e2179b14d8640838c1.
-//
-// Solidity: event DecimalsUpdated(uint256 decimals)
-func (_GasPriceOracle *GasPriceOracleFilterer) WatchDecimalsUpdated(opts *bind.WatchOpts, sink chan<- *GasPriceOracleDecimalsUpdated) (event.Subscription, error) {
-
-	logs, sub, err := _GasPriceOracle.contract.WatchLogs(opts, "DecimalsUpdated")
-	if err != nil {
-		return nil, err
-	}
-	return event.NewSubscription(func(quit <-chan struct{}) error {
-		defer sub.Unsubscribe()
-		for {
-			select {
-			case log := <-logs:
-				// New log arrived, parse the event and forward to the user
-				event := new(GasPriceOracleDecimalsUpdated)
-				if err := _GasPriceOracle.contract.UnpackLog(event, "DecimalsUpdated", log); err != nil {
-					return err
-				}
-				event.Raw = log
-
-				select {
-				case sink <- event:
-				case err := <-sub.Err():
-					return err
-				case <-quit:
-					return nil
-				}
-			case err := <-sub.Err():
-				return err
-			case <-quit:
-				return nil
-			}
-		}
-	}), nil
-}
-
-// ParseDecimalsUpdated is a log parse operation binding the contract event 0xd68112a8707e326d08be3656b528c1bcc5bbbfc47f4177e2179b14d8640838c1.
-//
-// Solidity: event DecimalsUpdated(uint256 decimals)
-func (_GasPriceOracle *GasPriceOracleFilterer) ParseDecimalsUpdated(log types.Log) (*GasPriceOracleDecimalsUpdated, error) {
-	event := new(GasPriceOracleDecimalsUpdated)
-	if err := _GasPriceOracle.contract.UnpackLog(event, "DecimalsUpdated", log); err != nil {
-		return nil, err
-	}
-	event.Raw = log
-	return event, nil
-}
-
-// GasPriceOracleOverheadUpdatedIterator is returned from FilterOverheadUpdated and is used to iterate over the raw logs and unpacked data for OverheadUpdated events raised by the GasPriceOracle contract.
-type GasPriceOracleOverheadUpdatedIterator struct {
-	Event *GasPriceOracleOverheadUpdated // Event containing the contract specifics and raw log
-
-	contract *bind.BoundContract // Generic contract to use for unpacking event data
-	event    string              // Event name to use for unpacking event data
-
-	logs chan types.Log        // Log channel receiving the found contract events
-	sub  ethereum.Subscription // Subscription for errors, completion and termination
-	done bool                  // Whether the subscription completed delivering logs
-	fail error                 // Occurred error to stop iteration
-}
-
-// Next advances the iterator to the subsequent event, returning whether there
-// are any more events found. In case of a retrieval or parsing error, false is
-// returned and Error() can be queried for the exact failure.
-func (it *GasPriceOracleOverheadUpdatedIterator) Next() bool {
-	// If the iterator failed, stop iterating
-	if it.fail != nil {
-		return false
-	}
-	// If the iterator completed, deliver directly whatever's available
-	if it.done {
-		select {
-		case log := <-it.logs:
-			it.Event = new(GasPriceOracleOverheadUpdated)
-			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
-				it.fail = err
-				return false
-			}
-			it.Event.Raw = log
-			return true
-
-		default:
-			return false
-		}
-	}
-	// Iterator still in progress, wait for either a data or an error event
-	select {
-	case log := <-it.logs:
-		it.Event = new(GasPriceOracleOverheadUpdated)
-		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
-			it.fail = err
-			return false
-		}
-		it.Event.Raw = log
-		return true
-
-	case err := <-it.sub.Err():
-		it.done = true
-		it.fail = err
-		return it.Next()
-	}
-}
-
-// Error returns any retrieval or parsing error occurred during filtering.
-func (it *GasPriceOracleOverheadUpdatedIterator) Error() error {
-	return it.fail
-}
-
-// Close terminates the iteration process, releasing any pending underlying
-// resources.
-func (it *GasPriceOracleOverheadUpdatedIterator) Close() error {
-	it.sub.Unsubscribe()
-	return nil
-}
-
-// GasPriceOracleOverheadUpdated represents a OverheadUpdated event raised by the GasPriceOracle contract.
-type GasPriceOracleOverheadUpdated struct {
-	Overhead *big.Int
-	Raw      types.Log // Blockchain specific contextual infos
-}
-
-// FilterOverheadUpdated is a free log retrieval operation binding the contract event 0x32740b35c0ea213650f60d44366b4fb211c9033b50714e4a1d34e65d5beb9bb4.
-//
-// Solidity: event OverheadUpdated(uint256 overhead)
-func (_GasPriceOracle *GasPriceOracleFilterer) FilterOverheadUpdated(opts *bind.FilterOpts) (*GasPriceOracleOverheadUpdatedIterator, error) {
-
-	logs, sub, err := _GasPriceOracle.contract.FilterLogs(opts, "OverheadUpdated")
-	if err != nil {
-		return nil, err
-	}
-	return &GasPriceOracleOverheadUpdatedIterator{contract: _GasPriceOracle.contract, event: "OverheadUpdated", logs: logs, sub: sub}, nil
-}
-
-// WatchOverheadUpdated is a free log subscription operation binding the contract event 0x32740b35c0ea213650f60d44366b4fb211c9033b50714e4a1d34e65d5beb9bb4.
-//
-// Solidity: event OverheadUpdated(uint256 overhead)
-func (_GasPriceOracle *GasPriceOracleFilterer) WatchOverheadUpdated(opts *bind.WatchOpts, sink chan<- *GasPriceOracleOverheadUpdated) (event.Subscription, error) {
-
-	logs, sub, err := _GasPriceOracle.contract.WatchLogs(opts, "OverheadUpdated")
-	if err != nil {
-		return nil, err
-	}
-	return event.NewSubscription(func(quit <-chan struct{}) error {
-		defer sub.Unsubscribe()
-		for {
-			select {
-			case log := <-logs:
-				// New log arrived, parse the event and forward to the user
-				event := new(GasPriceOracleOverheadUpdated)
-				if err := _GasPriceOracle.contract.UnpackLog(event, "OverheadUpdated", log); err != nil {
-					return err
-				}
-				event.Raw = log
-
-				select {
-				case sink <- event:
-				case err := <-sub.Err():
-					return err
-				case <-quit:
-					return nil
-				}
-			case err := <-sub.Err():
-				return err
-			case <-quit:
-				return nil
-			}
-		}
-	}), nil
-}
-
-// ParseOverheadUpdated is a log parse operation binding the contract event 0x32740b35c0ea213650f60d44366b4fb211c9033b50714e4a1d34e65d5beb9bb4.
-//
-// Solidity: event OverheadUpdated(uint256 overhead)
-func (_GasPriceOracle *GasPriceOracleFilterer) ParseOverheadUpdated(log types.Log) (*GasPriceOracleOverheadUpdated, error) {
-	event := new(GasPriceOracleOverheadUpdated)
-	if err := _GasPriceOracle.contract.UnpackLog(event, "OverheadUpdated", log); err != nil {
-		return nil, err
-	}
-	event.Raw = log
-	return event, nil
-}
-
-// GasPriceOracleScalarUpdatedIterator is returned from FilterScalarUpdated and is used to iterate over the raw logs and unpacked data for ScalarUpdated events raised by the GasPriceOracle contract.
-type GasPriceOracleScalarUpdatedIterator struct {
-	Event *GasPriceOracleScalarUpdated // Event containing the contract specifics and raw log
-
-	contract *bind.BoundContract // Generic contract to use for unpacking event data
-	event    string              // Event name to use for unpacking event data
-
-	logs chan types.Log        // Log channel receiving the found contract events
-	sub  ethereum.Subscription // Subscription for errors, completion and termination
-	done bool                  // Whether the subscription completed delivering logs
-	fail error                 // Occurred error to stop iteration
-}
-
-// Next advances the iterator to the subsequent event, returning whether there
-// are any more events found. In case of a retrieval or parsing error, false is
-// returned and Error() can be queried for the exact failure.
-func (it *GasPriceOracleScalarUpdatedIterator) Next() bool {
-	// If the iterator failed, stop iterating
-	if it.fail != nil {
-		return false
-	}
-	// If the iterator completed, deliver directly whatever's available
-	if it.done {
-		select {
-		case log := <-it.logs:
-			it.Event = new(GasPriceOracleScalarUpdated)
-			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
-				it.fail = err
-				return false
-			}
-			it.Event.Raw = log
-			return true
-
-		default:
-			return false
-		}
-	}
-	// Iterator still in progress, wait for either a data or an error event
-	select {
-	case log := <-it.logs:
-		it.Event = new(GasPriceOracleScalarUpdated)
-		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
-			it.fail = err
-			return false
-		}
-		it.Event.Raw = log
-		return true
-
-	case err := <-it.sub.Err():
-		it.done = true
-		it.fail = err
-		return it.Next()
-	}
-}
-
-// Error returns any retrieval or parsing error occurred during filtering.
-func (it *GasPriceOracleScalarUpdatedIterator) Error() error {
-	return it.fail
-}
-
-// Close terminates the iteration process, releasing any pending underlying
-// resources.
-func (it *GasPriceOracleScalarUpdatedIterator) Close() error {
-	it.sub.Unsubscribe()
-	return nil
-}
-
-// GasPriceOracleScalarUpdated represents a ScalarUpdated event raised by the GasPriceOracle contract.
-type GasPriceOracleScalarUpdated struct {
-	Scalar *big.Int
-	Raw    types.Log // Blockchain specific contextual infos
-}
-
-// FilterScalarUpdated is a free log retrieval operation binding the contract event 0x3336cd9708eaf2769a0f0dc0679f30e80f15dcd88d1921b5a16858e8b85c591a.
-//
-// Solidity: event ScalarUpdated(uint256 scalar)
-func (_GasPriceOracle *GasPriceOracleFilterer) FilterScalarUpdated(opts *bind.FilterOpts) (*GasPriceOracleScalarUpdatedIterator, error) {
-
-	logs, sub, err := _GasPriceOracle.contract.FilterLogs(opts, "ScalarUpdated")
-	if err != nil {
-		return nil, err
-	}
-	return &GasPriceOracleScalarUpdatedIterator{contract: _GasPriceOracle.contract, event: "ScalarUpdated", logs: logs, sub: sub}, nil
-}
-
-// WatchScalarUpdated is a free log subscription operation binding the contract event 0x3336cd9708eaf2769a0f0dc0679f30e80f15dcd88d1921b5a16858e8b85c591a.
-//
-// Solidity: event ScalarUpdated(uint256 scalar)
-func (_GasPriceOracle *GasPriceOracleFilterer) WatchScalarUpdated(opts *bind.WatchOpts, sink chan<- *GasPriceOracleScalarUpdated) (event.Subscription, error) {
-
-	logs, sub, err := _GasPriceOracle.contract.WatchLogs(opts, "ScalarUpdated")
-	if err != nil {
-		return nil, err
-	}
-	return event.NewSubscription(func(quit <-chan struct{}) error {
-		defer sub.Unsubscribe()
-		for {
-			select {
-			case log := <-logs:
-				// New log arrived, parse the event and forward to the user
-				event := new(GasPriceOracleScalarUpdated)
-				if err := _GasPriceOracle.contract.UnpackLog(event, "ScalarUpdated", log); err != nil {
-					return err
-				}
-				event.Raw = log
-
-				select {
-				case sink <- event:
-				case err := <-sub.Err():
-					return err
-				case <-quit:
-					return nil
-				}
-			case err := <-sub.Err():
-				return err
-			case <-quit:
-				return nil
-			}
-		}
-	}), nil
-}
-
-// ParseScalarUpdated is a log parse operation binding the contract event 0x3336cd9708eaf2769a0f0dc0679f30e80f15dcd88d1921b5a16858e8b85c591a.
-//
-// Solidity: event ScalarUpdated(uint256 scalar)
-func (_GasPriceOracle *GasPriceOracleFilterer) ParseScalarUpdated(log types.Log) (*GasPriceOracleScalarUpdated, error) {
-	event := new(GasPriceOracleScalarUpdated)
-	if err := _GasPriceOracle.contract.UnpackLog(event, "ScalarUpdated", log); err != nil {
-		return nil, err
-	}
-	event.Raw = log
-	return event, nil
-}

packages/contracts-bedrock/contracts/L2/GasPriceOracle.sol

@@ -10,10 +10,16 @@ import { L1Block } from "../L2/L1Block.sol";
  * @custom:predeploy 0x420000000000000000000000000000000000000F
  * @title GasPriceOracle
  * @notice This contract maintains the variables responsible for computing the L1 portion of the
- *         total fee charged on L2. The values stored in the contract are looked up as part of the
- *         L2 state transition function and used to compute the total fee paid by the user. The
- *         contract exposes an API that is useful for knowing how large the L1 portion of their
- *         transaction fee will be.
+ *         total fee charged on L2. Before Bedrock, this contract held variables in state that were
+ *         read during the state transition function to compute the L1 portion of the transaction
+ *         fee. After Bedrock, this contract now simply proxies the L1Block contract, which has
+ *         the values used to compute the L1 portion of the fee in its state.
+ *
+ *         The contract exposes an API that is useful for knowing how large the L1 portion of the
+ *         transaction fee will be. The following events were deprecated with Bedrock:
+ *         - event OverheadUpdated(uint256 overhead);
+ *         - event ScalarUpdated(uint256 scalar);
+ *         - event DecimalsUpdated(uint256 decimals);
  */
 contract GasPriceOracle is Semver {
     /**
@@ -56,21 +62,6 @@ contract GasPriceOracle is Semver {
      */
     uint256 public constant decimals = 6;
 
-    /**
-     * @notice Emitted when the overhead value is updated.
-     */
-    event OverheadUpdated(uint256 overhead);
-
-    /**
-     * @notice Emitted when the scalar value is updated.
-     */
-    event ScalarUpdated(uint256 scalar);
-
-    /**
-     * @notice Emitted when the decimals value is updated.
-     */
-    event DecimalsUpdated(uint256 decimals);
-
     /**
      * @custom:semver 0.0.1
      */