state variable which can be declared as immutable

[code423n4]

Handle

JMukesh

Vulnerability details

Impact

state variable which have to initialise in constructor can be declared as immutable to save gas

Proof of Concept

https://docs.soliditylang.org/en/v0.8.4/contracts.html#constant-and-immutable-state-variables

https://github.com/code-423n4/2021-06-tracer/blob/74e720ee100fd027c592ea44f272231ad4dfa2ab/src/contracts/Insurance.sol#L23

https://github.com/code-423n4/2021-06-tracer/blob/74e720ee100fd027c592ea44f272231ad4dfa2ab/src/contracts/Insurance.sol#L20

https://github.com/code-423n4/2021-06-tracer/blob/74e720ee100fd027c592ea44f272231ad4dfa2ab/src/contracts/Liquidation.sol#L30

https://github.com/code-423n4/2021-06-tracer/blob/74e720ee100fd027c592ea44f272231ad4dfa2ab/src/contracts/Liquidation.sol#L31

https://github.com/code-423n4/2021-06-tracer/blob/74e720ee100fd027c592ea44f272231ad4dfa2ab/src/contracts/Pricing.sol#L17

Tools Used

manual review

[OsmanBran]

Duplicate of #24

[loudoguno]

reopening and removing duplicate label as per judges sheet