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fix: consistent BaseFee check logic (#855)

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Closes: #755

```
if not london_hardfork {
    # reject DynamicFeeTx
    # no `baseFeePerGas` field in block response
    # baseFee = nil
} else {
    # allow DynamicFeeTx
    # add `baseFeePerGas` field in block response
    if feemarketParams.NoBaseFee or height < feemarketParams.EnableHeight {
        # baseFee = 0
    } else {
        # init baseFee to initBaseFee and adjust in later blocks
    }
}
```

Update x/evm/keeper/keeper.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

add unit tests

Update app/ante/utils_test.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

changelog
This commit is contained in:
yihuang
2021-12-28 07:59:28 +00:00
committed by GitHub
co-authored by Federico Kunze Küllmer
parent d822fee5c1
commit eb17366dcc
17 changed files with 435 additions and 334 deletions
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x/feemarket/keeper/keeper.go
+2 -1
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@@ -71,7 +71,8 @@ func (k Keeper) SetBlockGasUsed(ctx sdk.Context, gas uint64) {
// Required by EIP1559 base fee calculation.
// ----------------------------------------------------------------------------
// GetLastBaseFee returns the last base fee value from the store.
// GetBaseFee returns the last base fee value from the store.
// returns nil if base fee is not enabled.
func (k Keeper) GetBaseFee(ctx sdk.Context) *big.Int {
store := ctx.KVStore(k.storeKey)
bz := store.Get(types.KeyPrefixBaseFee)