compiler panic when type checking struct iterator #4549
Description
Version Information
- vyper Version (output of
vyper --version): 0.4.1
What's your issue about?
the following code raises a panic instead of a proper typechecker exception:
struct Tx1:
x: uint256
y: address
struct Tx2:
x: uint256
y: address
@external
def test():
txs: Tx1[20] = empty(Tx1[20])
for txx: Tx2 in txs: # should be `txx: Tx1`
passraises:
During handling of the above exception, another exception occurred:
vyper.exceptions.CodegenPanic: unhandled exception , parse_For
contract "tmp/bar.vy:14", function "test", line 14:4
13
---> 14 for txx: Tx2 in txs: # should be `txx: Tx1`
------------^
15 pass
This is an unhandled internal compiler error. Please create an issue on Github to notify the developers!
https://github.com/vyperlang/vyper/issues/new?template=bug.md
How can it be fixed?
Fill this in if you know how to fix it.