docs: clarify TWAP update requirements in Pyth contract

cctdaniel · cctdaniel · commit 3ab3f0dfb3c5 · 2025-04-09T21:24:00.000+09:00
diff --git a/target_chains/ethereum/contracts/contracts/pyth/Pyth.sol b/target_chains/ethereum/contracts/contracts/pyth/Pyth.sol
@@ -370,6 +370,8 @@ abstract contract Pyth is
         override
         returns (PythStructs.TwapPriceFeed[] memory twapPriceFeeds)
     {
+        // TWAP requires exactly 2 updates - one for the start point and one for the end point
+        // to calculate the time-weighted average price between those two points
         if (updateData.length != 2) {
             revert PythErrors.InvalidUpdateData();
         }

Original file line number	Diff line number	Diff line change
`@@ -370,6 +370,8 @@ abstract contract Pyth is`
`370`	`370`	`override`
`371`	`371`	`returns (PythStructs.TwapPriceFeed[] memory twapPriceFeeds)`
`372`	`372`	`{`
	`373`	`+ // TWAP requires exactly 2 updates - one for the start point and one for the end point`
	`374`	`+ // to calculate the time-weighted average price between those two points`
`373`	`375`	`if (updateData.length != 2) {`
`374`	`376`	`revert PythErrors.InvalidUpdateData();`
`375`	`377`	`}`