Lossless Extensions Core
Last updated
Last updated
The Lossless Extensions Core is the smart contract in charge of managing the extensions installed on the Lossless Wrapped ERC20 Extensible contract.
Through this contracts the users can interact in order to register and unregister extensions. Additionally when an extension is registered it needs to be set as one of the following bases:
beforeTransferBase
: The logic of the extension is ran before a transfer takes place.
afterTransferBase
: The logic is ran after a transfer takes place
beforeMintBase
: The logic is ran before a mint takes place
afterMintBase
: The logic is ran after a mint takes place
beforeBurnBase
: The logic is ran before burning takes place
afterBurnBase
: The logic is ran after burning takes place
In order to properly implement the extensions the corresponding interface has to be implemented.
An extension is a smart contract that implements one or more of the interfaces stated in the repository.
For instance, when a user interacts with the Lossless WERC20 Extensible to perform a transfer, the wrapping contract will check if abeforeTransferBase
is set and if so, if it has an extension registered with the same address. If both of this conditions are true, the call to the extension is made, applying the deployed logic.
More info
Lossless Core Extension can be taken as an example of an extension that implements before and after transfer base, effectively expanding the logic by interacting with the Lossless Core Protocol.
_extensions
Type |
|
Visibility |
|
Description | Corresponds to a list of registered extensions. |
losslessCoreExtension
Type |
|
Visibility |
|
Description | Corresponds to the registered address as the lossless core extension. |
beforeTransferBase
Type |
|
Visibility |
|
Description | Corresponds to the registered address as the before transfer base. Executes its logic before performing a transfer. |
beforeMintBase
Type |
|
Visibility |
|
Description | Corresponds to the registered address as the before mint base. Executes its logic before minting. |
afterMintBase
Type |
|
Visibility |
|
Description | Corresponds to the registered address as the after mint base. Executes its logic after minting. |
beforeBurnBase
Type |
|
Visibility |
|
Description | Corresponds to the registered address as the before burn base. Executes its logic before burning. |
afterBurnBase
Type |
|
Visibility |
|
Description | Corresponds to the registered address as the after burn base. Executes its logic after burning. |
_CREATOR_CORE_V1
Type |
|
Visibility |
|
Description | Corresponds to the interfaceID of the Extensions Core Contract |
Parameters |
|
Description | It is emitted when a new extension is registered. |
Parameters |
|
Description | It is emitted when a new extension is registered. |
Parameters |
|
Description | It is emitted when a new transfer base is registered. |
Parameters |
|
Description | It is emitted when a new after transfer base is registered. |
Parameters |
|
Description | It is emitted when a new before mint base is registered. |
Parameters |
|
Description | It is emitted when a new after mint base is registered. |
Parameters |
|
Description | It is emitted when a new before burn base is registered. |
Parameters |
|
Description | It is emitted when a new after burn base is registered. |
Type | external view |
Restrictions | - |
Parameters | - |
Returns | Returns an array of addresses |
Description | Returns a list of all registered extensions in the contract. |
Type | external |
Restrictions | Only admin |
Parameters | extension address |
Returns | - |
Description | Adds the address of the extension to the _extensions list. |
Type | external |
Restrictions | Only admin |
Parameters | extension address |
Returns | - |
Description | Removes the address of the extension from the _extensions list. |
Type | external |
Restrictions | Only registered extension |
Parameters | - |
Returns | - |
Description | Sets the calling extension as the Lossless Core Extension |
Type | external |
Restrictions | Only registered extension |
Parameters | - |
Returns | - |
Description | Sets the calling extension as the before transfer base. |
Type | external |
Restrictions | Only registered extension |
Parameters | - |
Returns | - |
Description | Sets the calling extension as the after transfer base. |
Type | external |
Restrictions | Only registered extension |
Parameters | - |
Returns | - |
Description | Sets the calling extension as the before mint base. |
Type | external |
Restrictions | Only registered extension |
Parameters | - |
Returns | - |
Description | Sets the calling extension as the after mint base. |
Type | external |
Restrictions | Only registered extension |
Parameters | - |
Returns | - |
Description | Sets the calling extension as the before burn base. |
Type | external |
Restrictions | Only registered extension |
Parameters | - |
Returns | - |
Description | Sets the calling extension as the after burn base. |