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License: MIT License
Opcode types for Ethereum Virtual Machine (EVM)
License: MIT License
When translating [LabelledOpcode]
to [Opcode]
, such that a JUMP "foo"
becomes [PUSH x, JUMP ()]
, and so on (see readme for more information and examples), this fixpoint algorithm is used.
Here, fixpoint
calls step
and either terminates or calls fixpoint
again. So the levels of recursion have already been split into fixpoint
and step
, and the meat of the operation has been moved to align
. Since I sort reached my mental capacity writing this algorithm, it still looks a bit cluttered.
One thing that would simplify its implementation, I think, is the use of fix
.
Any other measure to reduce the complexity of this algorithm is equally welcome.
This issue is merely a friendly attempt to limit the search.
...on even trivial inputs (afaik anything but []
):
$ cabal repl --build-depends=evm-opcodes
ghci> import EVM.Opcodes
ghci> import qualified EVM.Opcodes.Labelled as L
ghci> :set -XOverloadedStrings
ghci> L.translate [ADD]
Right [
On my machine the above results in ghci eventually being SIGKILLed due to an out of memory error. The problem was not obvious to me from looking at the source code.
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