Compiler Bug: boost::too_few_args

[fruffy]

Similar to #2206, the attached program leads to a boost error after the FrontEnd_9_CheckNamedArgs pass.
I think because of the slice operation the FrontEnd_4_ResolveReferences does not detect that the width of the expression is unknown?
b.p4.txt

[mihaibudiu]

I cannot reproduce this issue.

$ ./p4test --top4 4 issue2207.p4
issue2207.p4(25): error: ~: Operation cannot be applied to values with unknown width;
please specify width explicitly
        h.h.a = ~(0 << 8w1);
                ^^^^^^^^^^^

Are you running the latest version of the compiler?
The error you are indicating suggests a bug in an error message format; we have recently merged a change in the way error message formats are handled.

[mihaibudiu]

BTW: compilation does not reach pass 9, it stops in pass 5. So I don't know how you reached FrontEnd_9.

[fruffy]

I rebuilt and tried to reproduce this. I can't and I also cannot identify the commit that might have caused this. Seems like a fluke.