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Refactor the interface #26
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This change has two purpose: 1) add priceFeedExists to handle the case when a price does not exist in `updatePriceIfNecessary`. try-catch doesn't work on local function call in solidity and we cannot catch the revert there. 2) getValidTimePeriod(): There are some cases that the previous getCurrentPrice implementation does not cover and it is better to use the latestAvailablePrice. However, we need to know the validity period and this is why it is added here. It uses the unsafe function to have better revert message if it occurs.
ali-behjati
requested review from
drozdziak1,
jayantk and
tompntn
and removed request for
jayantk and
tompntn
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This change has two purpose:
in
updatePriceIfNecessary.try-catch doesn't work on local function call in solidity and we cannot
catch the revert there.
getCurrentPrice implementation does not
cover and it is better to use the latestAvailablePrice.
However, we need to know the validity period and this is why it is added
here. It uses the unsafe function to have better revert message if it
occurs.