ITokenController

Git Source

The interface of a ERC20 facade for multiple token types with functionality similar to ERC1155.

The TokenController provides support to the AmmalgamPair contract for token management.

Functions

underlyingTokens

Get the underlying tokens for the AmmalgamERC20Controller.

function underlyingTokens() external view returns (IERC20, IERC20);

Returns

Name	Type	Description
<none>	IERC20	The addresses of the underlying tokens.
<none>	IERC20

getReserves

Fetches the current reserves and the last update timestamp.

function getReserves() external view returns (uint112 reserveXAssets, uint112 reserveYAssets, uint32 lastTimestamp);

Returns

Name	Type	Description
reserveXAssets	uint112	The raw reserveX or reserveX plus unaccrued interest.
reserveYAssets	uint112	The raw reserveY or reserveY plus unaccrued interest.
lastTimestamp	uint32	The timestamp of the last operation.

externalLiquidity

function externalLiquidity() external view returns (uint112);

updateExternalLiquidity

Updates the external liquidity value.

This function sets the external liquidity to a new value and emits an event with the new value. It can only be called by the fee setter.

function updateExternalLiquidity(
    uint112 _externalLiquidity
) external;

Parameters

Name	Type	Description
_externalLiquidity	uint112	The new external liquidity value.

referenceReserves

Returns the reference reserves for the block, these represent a snapshot of the reserves at the start of the block weighted for mints, burns, borrow and repayment of liquidity. These amounts are critical to calculating the correct fees for any swap.

function referenceReserves() external view returns (uint112 referenceReserveX, uint112 referenceReserveY);

Returns

Name	Type	Description
referenceReserveX	uint112	The reference reserve for asset X.
referenceReserveY	uint112	The reference reserve for asset Y.

tokens

Return the IAmmalgamERC20 token corresponding to the token type

function tokens(
    uint256 tokenType
) external view returns (IAmmalgamERC20);

Parameters

Name	Type	Description
tokenType	uint256	The type of token for which the scaler is being computed. Can be one of BORROW_X, DEPOSIT_X, BORROW_Y, DEPOSIT_Y, BORROW_L, or DEPOSIT_L.

Returns

Name	Type	Description
<none>	IAmmalgamERC20	The IAmmalgamERC20 token

totalAssetsAndShares

Computes current total assets and shares.

*Behavior depends on the withInterest flag:

1. If withInterest is false: Returns stored values (allAssets, allShares) without adjustments.
2. If withInterest is true:

• First calls computeAssetsState() to recalculate assets and shares (accounts for elapsed time, interest, and lending state).
• Converts protocol fees to shares for DEPOSIT_L/X/Y and adds them to _allShares.
• Adds protocol fees to DEPOSIT_L/X/Y in _allAssets (updated after shares to avoid double-counting).

3. If computeAssetsState() detects no elapsed lending time, it returns stored values without recalculation.*

function totalAssetsAndShares(
    bool withInterest
) external view returns (uint112[6] memory _allAssets, uint112[6] memory _allShares);

Parameters

Name	Type	Description
withInterest	bool	Toggle to enable/disable interest accrual, reserve adjustments, and protocol fee application.

Returns

Name	Type	Description
_allAssets	uint112[6]	Array of six uint128 values: Total assets for each of the 6 Amalgam token types. If withInterest is true, includes protocol fees for DEPOSIT_L/X/Y.
_allShares	uint112[6]	Array of six uint112 values: Total shares for each of the 6 Amalgam token types. If withInterest is true, includes shares converted from protocol fees for DEPOSIT_L/X/Y.

Events

Sync

Emitted when reserves are synchronized

event Sync(uint256 reserveXAssets, uint256 reserveYAssets);

Parameters

Name	Type	Description
reserveXAssets	uint256	The updated reserve for token X
reserveYAssets	uint256	The updated reserve for token Y

UpdateExternalLiquidity

Emitted when external liquidity is updated

event UpdateExternalLiquidity(uint112 externalLiquidity);

Parameters

Name	Type	Description
externalLiquidity	uint112	The updated value for external liquidity

BurnBadDebt

Emitted when bad debt is burned

event BurnBadDebt(address indexed borrower, uint256 indexed tokenType, uint256 badDebtAssets, uint256 badDebtShares);

Parameters

Name	Type	Description
borrower	address	The address of the borrower
tokenType	uint256	The type of token being burned
badDebtAssets	uint256	The amount of bad debt assets being burned
badDebtShares	uint256	The amount of bad debt shares being burned

InterestAccrued

Emitted when Interest gets accrued

event InterestAccrued(
    uint112 depositLAssets,
    uint112 depositXAssets,
    uint112 depositYAssets,
    uint112 borrowLAssets,
    uint112 borrowXAssets,
    uint112 borrowYAssets
);

Parameters

Name	Type	Description
depositLAssets	uint112	The amount of total DEPOSIT_L assets in the pool after interest accrual
depositXAssets	uint112	The amount of total DEPOSIT_X assets in the pool after interest accrual
depositYAssets	uint112	The amount of total DEPOSIT_Y assets in the pool after interest accrual
borrowLAssets	uint112	The amount of total BORROW_L assets in the pool after interest accrual
borrowXAssets	uint112	The amount of total BORROW_X assets in the pool after interest accrual
borrowYAssets	uint112	The amount of total BORROW_Y assets in the pool after interest accrual