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check query buy

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mingda
2020-11-06 19:33:12 +08:00
parent 52a40fec8f
commit 0cf2e9e516
1 changed files with 4 additions and 0 deletions
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4
contracts/DODOVendorMachine/impl/DVMTrader.sol
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@@ -150,6 +150,8 @@ contract DVMTrader is DVMStorage {
DecimalMath.ONE.sub(mtFeeRate).sub(lpFeeRate)
);
(uint256 baseReserve, uint256 quoteReserve) = _VAULT_.getVaultReserve();
require(baseReserve > validReceiveBaseAmount, "DODO_BASE_BALANCE_NOT_ENOUGH");
uint256 B0 = calculateBase0(baseReserve, quoteReserve);
uint256 B2 = baseReserve.sub(validReceiveBaseAmount);
payQuoteAmount = DODOMath._GeneralIntegrate(B0, baseReserve, B2, _I_, _K_);
@@ -168,6 +170,8 @@ contract DVMTrader is DVMStorage {
DecimalMath.ONE.sub(mtFeeRate).sub(lpFeeRate)
);
(uint256 baseReserve, uint256 quoteReserve) = _VAULT_.getVaultReserve();
require(quoteReserve > validReceiveQuoteAmount, "DODO_QUOTE_BALANCE_NOT_ENOUGH");
uint256 B0 = calculateBase0(baseReserve, quoteReserve);
uint256 fairAmount = DecimalMath.divFloor(validReceiveQuoteAmount, _I_);
payBaseAmount = DODOMath._SolveQuadraticFunctionForTrade(