Exceptions

In some cases, the contract's execution might fail. The current chapter describes the list of possible in-contract failures.

Error	Description
Dex/reentrancy	It is prohibited to call the exchange until the previous operation is finished.
Dex/function-not-set	The code for the entrypoint doesn't exist in the bigmap. Should be unreachable.
Dex/not-entered	The contract can't be called until the previous method execution isn't finished.
Dex/not-self	The method should be called by the exchange contract only.
Dex/not-token	The token doesn't implement the standard entrypoint.
Dex/not-close-entrypoint	The exchange contract doesn't have close entrypoint. Should be unreachable.
Dex/not-launched	The exchange for the pair isn't launched.
Dex/no-liquidity	Action can't be performed if there is no liquidity in the pool.
Dex/no-token-a-in	The amount of invested token A can't be zero.
Dex/no-token-b-in	The amount of invested token B can't be zero.
Dex/pair-exist	The exchange can't be launched if it already exists.
Dex/wrong-route	The exchange route isn't cohesive.
Dex/zero-amount-in	Invest of zero tokens on one of the sides is not allowed.
Dex/insufficient-shares	Not enough shares to burn.
Dex/dust-output	One or all divested token amounts are zero.
Dex/high-min-out	The expected output is higher than the possible.
Dex/wrong-pair-order	The tokens should be provided in ascending order.
Dex/empty-route	The provided exchange route is empty.
Dex/low-max-token-a-in	The max amount of token A to deposit for the shares is insufficient.
Dex/low-max-token-b-in	The amount of token B to withdraw for the shares is too low.
Dex/action-outdated	The operation isn't outdated.
Dex/wrong-reserves-state	After divest, some reserves and total shares aren't all zero or aren't all non-zero values. Should be unreachable.
Dex/low-supply	The amount of divested shares is higher than the total supply. Should be unreachable.