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chore(evm): add comment regarding RANDOM opcode (#1520)

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* fix: add random field to BlockContext using block header hash

* add comment

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
This commit is contained in:
Austin Chandra 2022-12-02 05:00:46 -08:00 committed by GitHub
parent 9077172f8e
commit 39309e0b21
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1 changed files with 6 additions and 0 deletions
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6
x/evm/keeper/state_transition.go
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@ -72,6 +72,11 @@ func (k *Keeper) TxConfig(ctx sdk.Context, txHash common.Hash) statedb.TxConfig
// (ChainConfig and module Params). It additionally sets the validator operator address as the // (ChainConfig and module Params). It additionally sets the validator operator address as the
// coinbase address to make it available for the COINBASE opcode, even though there is no // coinbase address to make it available for the COINBASE opcode, even though there is no
// beneficiary of the coinbase transaction (since we're not mining). // beneficiary of the coinbase transaction (since we're not mining).
//
// NOTE: the RANDOM opcode is currently not supported since it requires
// RANDAO implementation. See https://github.com/evmos/ethermint/pull/1520#pullrequestreview-1200504697
// for more information.
func (k *Keeper) NewEVM( func (k *Keeper) NewEVM(
ctx sdk.Context, ctx sdk.Context,
msg core.Message, msg core.Message,
@ -89,6 +94,7 @@ func (k *Keeper) NewEVM(
Time: big.NewInt(ctx.BlockHeader().Time.Unix()), Time: big.NewInt(ctx.BlockHeader().Time.Unix()),
Difficulty: big.NewInt(0), // unused. Only required in PoW context Difficulty: big.NewInt(0), // unused. Only required in PoW context
BaseFee: cfg.BaseFee, BaseFee: cfg.BaseFee,
Random: nil, // not supported
} }
txCtx := core.NewEVMTxContext(msg) txCtx := core.NewEVMTxContext(msg)