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c7d5ad78e1
The current implementation of the validator key cache as introduced in #5883 leads to issues when compiling with `--gc:arc`. Namely, the assert in `injectdestructors.nim` > `destructiveMoveVar` is triggered: ```nim assert n.kind != nkSym or not hasDestructor(c, n.sym.typ) ``` `cached == nkSym`, and `n.sym.typ == ref HashedValidatorPubKeyItem` with `hasDestructor(c, n.sym.typ) == true`. Inlining the `addr ...[]` avoids the problem and allows `--gc:arc` compilation as part of LC wasm demo project. Compilation command: ```sh nim c \ -d:disable_libbacktrace \ -d:disableMarchNative \ -d:disableLTO \ -d:emscripten \ -d:release \ -d:useGcAssert \ -d:useSysAssert \ --debuginfo:off \ --nimcache:nimcache \ --os:linux \ --cpu:wasm32 \ --cc:clang \ --clang.exe:emcc \ --clang.linkerexe:emcc \ --gc:arc \ --exceptions:goto \ --define:noSignalHandler \ --define:danger \ --panics:on \ --passC:-fpic \ --passL:-Os \ --passL:-fpic \ --passC:'-pthread' \ --passL:'-pthread' \ --passC:'-sASSERTIONS' \ --passL:'-sASSERTIONS' \ --passC:'-sINITIAL_MEMORY=256MB' \ --passL:'-sINITIAL_MEMORY=256MB' \ --passC:'-sSTACK_SIZE=128MB' \ --passL:'-sSTACK_SIZE=128MB' \ --passC:'-sUSE_PTHREADS=1' \ --passL:'-sUSE_PTHREADS=1' \ --passC:'-sPTHREAD_POOL_SIZE_STRICT=0' \ --passL:'-sPTHREAD_POOL_SIZE_STRICT=0' \ --passL:'-sEXPORTED_FUNCTIONS="[_free, _malloc, _NimMain, _ETHRandomNumberCreate, _ETHConsensusConfigCreateFromYaml, _ETHConsensusConfigGetConsensusVersionAtEpoch, _ETHBeaconStateCreateFromSsz, _ETHBeaconStateDestroy, _ETHBeaconStateCopyGenesisValidatorsRoot, _ETHRootDestroy, _ETHForkDigestsCreateFromState, _ETHBeaconClockCreateFromState, _ETHBeaconClockGetSlot, _ETHLightClientStoreCreateFromBootstrap, _ETHLightClientStoreDestroy, _kETHLcSyncKind_UpdatesByRange, _kETHLcSyncKind_FinalityUpdate, _kETHLcSyncKind_OptimisticUpdate, _ETHLightClientStoreGetNextSyncTask, _ETHLightClientStoreGetMillisecondsToNextSyncTask, _ETHLightClientStoreProcessUpdatesByRange, _ETHLightClientStoreProcessFinalityUpdate, _ETHLightClientStoreProcessOptimisticUpdate, _ETHLightClientStoreGetFinalizedHeader, _ETHLightClientStoreIsNextSyncCommitteeKnown, _ETHLightClientStoreGetOptimisticHeader, _ETHLightClientStoreGetSafetyThreshold, _ETHLightClientHeaderCreateCopy, _ETHLightClientHeaderDestroy, _ETHLightClientHeaderCopyBeaconRoot, _ETHLightClientHeaderGetBeacon, _ETHBeaconBlockHeaderGetSlot, _ETHBeaconBlockHeaderGetProposerIndex, _ETHBeaconBlockHeaderGetParentRoot, _ETHBeaconBlockHeaderGetStateRoot, _ETHBeaconBlockHeaderGetBodyRoot, _ETHLightClientHeaderCopyExecutionHash, _ETHLightClientHeaderGetExecution, _ETHExecutionPayloadHeaderGetParentHash, _ETHExecutionPayloadHeaderGetFeeRecipient, _ETHExecutionPayloadHeaderGetStateRoot, _ETHExecutionPayloadHeaderGetReceiptsRoot, _ETHExecutionPayloadHeaderGetLogsBloom, _ETHExecutionPayloadHeaderGetPrevRandao, _ETHExecutionPayloadHeaderGetBlockNumber, _ETHExecutionPayloadHeaderGetGasLimit, _ETHExecutionPayloadHeaderGetGasUsed, _ETHExecutionPayloadHeaderGetTimestamp, _ETHExecutionPayloadHeaderGetExtraDataBytes, _ETHExecutionPayloadHeaderGetBaseFeePerGas, _ETHExecutionPayloadHeaderGetBlobGasUsed, _ETHExecutionPayloadHeaderGetExcessBlobGas, _ETHExecutionBlockHeaderCreateFromJson, _ETHExecutionBlockHeaderDestroy, _ETHExecutionBlockHeaderGetTransactionsRoot, _ETHExecutionBlockHeaderGetWithdrawalsRoot, _ETHTransactionsCreateFromJson, _ETHTransactionsDestroy, _ETHTransactionsGetCount, _ETHTransactionsGet, _ETHTransactionGetHash, _ETHTransactionGetFrom, _ETHTransactionGetNonce, _ETHTransactionGetMaxPriorityFeePerGas, _ETHTransactionGetMaxFeePerGas, _ETHTransactionGetGas, _ETHTransactionIsCreatingContract, _ETHTransactionGetTo, _ETHTransactionGetValue, _ETHTransactionGetInputBytes, _ETHTransactionGetBytes, _ETHTransactionGetEip6493Root, _ETHTransactionGetEip6493Bytes, _ETHTransactionGetNumEip6493SnappyBytes, _ETHReceiptsCreateFromJson, _ETHReceiptsDestroy, _ETHReceiptsGet, _ETHReceiptHasStatus, _ETHReceiptGetBytes, _ETHReceiptGetEip6493Bytes, _ETHReceiptGetNumEip6493SnappyBytes]"' \ --passL:'-sEXPORTED_RUNTIME_METHODS="[lengthBytesUTF8, stringToNewUTF8]"' \ --passL:'-Wl,--no-entry' \ --noMain:on \ --passL:'-o libnimbus_lc.js' \ nimbus-eth2/beacon_chain/libnimbus_lc/libnimbus_lc.nim ```