New EEI method: abort - Githubissues

ewasm / design

Ewasm Design Overview and Specification

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New EEI method: abort #43

Closed axic closed 6 years ago

axic commented 8 years ago

Abort execution and store a reason.

Parameters

reasonCode i32 the reason code
descriptionOffset i32 the memory offset to load the reason text from
descriptionLength i32 the length of the reason text (limited to 32 bytes)

Returns

nothing

axic commented 8 years ago

Related https://github.com/ethereum/EIPs/issues/62. It could also be replaced with special LOGs, which are not rolled back at execution errors. See https://github.com/ethereum/EIPs/issues/120 for an implementation of moving LOGs to storage.

wanderer commented 8 years ago

why not just use return?

axic commented 8 years ago

Assuming we change return so that the value is not rolled back on a VM error that could work. However that introduces a discrepancy with how EVM expects it.

axic commented 6 years ago

Solved by https://github.com/ethereum/EIPs/blob/master/EIPS/eip-140.md