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core, docs: add solidity document, close XFN-68 (#1670)

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Daniel Liu 2025-11-14 18:55:42 +08:00 committed by benjamin202410
parent f3603d6e13
commit 838751e378
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@ -1,5 +1,7 @@
I found 50 commits containing the keyword "XFN" in the last 200 commits. Here they are with dates: November 2025: I found 50 commits containing the keyword "XFN" in the last 200 commits. Here they are with dates: November 2025:
845137849 - Wanwiset Peerapatanapokin - consensus: change os.Exit to return error (#1653) 845137849 - Wanwiset Peerapatanapokin - consensus: change os.Exit to return error (#1653)
b49f6cb0f - Wanwiset Peerapatanapokin - consensus: verify header hash is same as input hash in getEpochSwitchInfo (#1627) b49f6cb0f - Wanwiset Peerapatanapokin - consensus: verify header hash is same as input hash in getEpochSwitchInfo (#1627)
e0c987f45 - Wanwiset Peerapatanapokin - impose size limit for DecodeBytesExtraFields (#1637) e0c987f45 - Wanwiset Peerapatanapokin - impose size limit for DecodeBytesExtraFields (#1637)
@ -10,6 +12,22 @@ c95d25805 - Wanwiset Peerapatanapokin - separate fullVerifies array into v1fullV
25a70e877 - Wanwiset Peerapatanapokin - consensus: skip gas limit verification for genesis block (#1646) 25a70e877 - Wanwiset Peerapatanapokin - consensus: skip gas limit verification for genesis block (#1646)
da92ad7cc - Wanwiset Peerapatanapokin - update package version: (#1612) da92ad7cc - Wanwiset Peerapatanapokin - update package version: (#1612)
2025-11-18 - 627d77ae2 - eth/hook: fix parameter mame mismatch in `HookPenalties()`, close XFN-141 (#1741)
2025-11-18 - f8553d587 - core, miner: fix inconsistent tx blacklist enforcement, close XFN-98 (#1674)
2025-11-16 - 73061af2c - core/types: fix immutability guarantees in Block #27844, close XFN-82 (#1727)
2025-11-15 - 07e2609c2 - common: improve variable names for `ExtractAddressFromBytes()`, close XFN-27 (#1726)
2025-11-15 - 650047c81 - consensus/XDPoS, params: fix some comments, close XFN-125 (#1733)
2025-11-15 - f24e68b01 - consensus/XDPoS, eth: fix potential rpc.BlockNumber overflow, close XFN-69 (#1735)
2025-11-15 - 60868c904 - engines/engine_v2: refactor verifyQC by errgroup, close XFN-09 (#1740)
2025-11-15 - 8cbbc1e83 - consensus, params: remove `SkipV2Validation`, close XFN-151 (#1730)
2025-11-15 - 7a3ac998a - eth: quick canceling block inserting when debug_setHead is invoked #32067, close XFN-142 (#1728)
2025-11-14 - eef5242fa - all: pre-allocate memory for slices and maps, close XFN-148 (#1714)
2025-11-14 - 782a7ff5c - all: fix typos, close XFN-23 (#1725)
2025-11-14 - bd3d30919 - XDPoS/utils: get pool size by key, close XFN-21 (#1666)
2025-11-14 - d5a03ab9e - core, eth: fix overuse Of `log.Crit`, close XFN-102 (#1648)
2025-11-14 - 2c40021f7 - core/state, internal/ethapi: GetAccountInfo handle error properly, close XFN-79 (#1663)
2025-11-14 - 39b8184f5 - XDPoS/utils: must use `NewPool()` to create Pool, close XFN-13 (#1667)
2025-11-14 - 956ebb2b0 - core, docs: add solidity document, close XFN-68 (#1670)
2025-11-12 - 4bb925258 - params: fix type V2 not equal bug, close XFN-45 (#1737) 2025-11-12 - 4bb925258 - params: fix type V2 not equal bug, close XFN-45 (#1737)
2025-11-10 - 366c99ece - consensus: use signer pubkey to check for unique signatures, close XFN-03 (#1643) 2025-11-10 - 366c99ece - consensus: use signer pubkey to check for unique signatures, close XFN-03 (#1643)

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core/evm.go
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@ -43,6 +43,7 @@ func NewEVMBlockContext(header *types.Header, chain consensus.ChainContext, auth
baseFee = new(big.Int).Set(header.BaseFee) baseFee = new(big.Int).Set(header.BaseFee)
} }
// since xdpos chain do not use difficulty and mixdigest, we use hash of the block number as random // since xdpos chain do not use difficulty and mixdigest, we use hash of the block number as random
// NOTE: random is predictable, do not use it in real business
random = crypto.Keccak256Hash(header.Number.Bytes()) random = crypto.Keccak256Hash(header.Number.Bytes())
return vm.BlockContext{ return vm.BlockContext{
CanTransfer: CanTransfer, CanTransfer: CanTransfer,

1
core/vm/instructions.go
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@ -482,6 +482,7 @@ func opDifficulty(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
return nil, nil return nil, nil
} }
// NOTE: Random is predictable in current implemention, do not use it in real business
func opRandom(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) { func opRandom(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var v *uint256.Int var v *uint256.Int
if interpreter.evm.Context.Random != nil { if interpreter.evm.Context.Random != nil {

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docs/README.md Normal file
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@ -0,0 +1,6 @@
# Documents
- [JSONRPC API](xdc/jsonrpc.md)
- [Validator Contract](xdc/validator.md)
- [Development environment](develop.md)
- [Solidity](solidity.md)

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docs/solidity.md Normal file
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@ -0,0 +1,23 @@
# Solidity
## Compatibility
- mainnet: v0.8.23
- testnet: v0.8.28
- devnet: v0.8.28
## Special variables
### block.prevrandao
The value of `block.prevrandao` is `keccak256(block.number)` in our current implemention. It is predictable and unsafe.
**NOTICE: do not use it in real business.**
### block.basefee
The value of `block.basefee` is always 12.5 GWei in our EIP-1559 implemention.
### block.blobbasefee
The value of `block.blobbasefee` is always 0 in our EIP-7516 implemention.