feat(std-lib): TxUtils tx-context helpers (isSeismicTx / isSignedRead) - #232
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HenryMBaldwin wants to merge 3 commits into
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feat(std-lib): TxUtils tx-context helpers (isSeismicTx / isSignedRead)#232HenryMBaldwin wants to merge 3 commits into
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HenryMBaldwin
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Add TxUtils reading the 0x6A tx-context precompile via staticcall (no ssolc builtin): txType(), isSeismicTx(), isSignedRead(), fail-closed on an unavailable precompile/selector, with sharpened NatSpec. Include the signed-reads doc update (provisional signed-read twin with fresh encryption metadata) and runtime tests.
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… (P2.1/P2.2) NatSpec: isSignedRead() reports a node classification; it does not itself authenticate or authorize the caller, and is not a confidentiality guarantee. Test: vm.signedRead(true) with a non-Seismic tx type still reads false, so vm.txType(0x4A) must be paired with it (isSignedRead implies isSeismicTx).
HenryMBaldwin
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…Tx() for a mined write
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TxUtilshelpers for the tx-context feature. Companion PRs: revm #227, evm #58, reth #457, foundry #220.TxUtils.txType()/isSeismicTx()/isSignedRead()read the0x6Aprecompile viastaticcall— stock Solidity, no ssolc builtin. Fail-closed on an unavailable precompile/selector or wrong return length.isSignedRead()impliesisSeismicTx(); NatSpec states it reports a node classification, not caller authorization or a confidentiality guarantee.Note: the CI
contracts-testjob is red until the installed sforge includes the0x6Aprecompile and thevm.txType/vm.signedReadcheatcodes; the suite passes 7/7 against an sforge built from foundry #220.