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Re: union member already defined?
- Subject: Re: union member already defined?
- From: iriri <iri@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Reply-to: myrddin-dev@xxxxxxxxxxxxxx
- Date: Sat, 28 Jul 2018 17:43:24 -0700
- To: "myrddin-dev" <myrddin-dev@xxxxxxxxxxxxxx>
Union tags must be unique within a given namespace.
type u1 =
`A1 int
`B1 flt64
;;
type u2 =
`A2 flt64
`B2 char
;;
---- On Sat, 28 Jul 2018 02:21:33 -0700 theos <theosjp@xxxxxxxxx> wrote ----
> hi,
>
> i started to learn myrddin recently and was going through the tutorial.
> i am getting - somewhat unexpected - an "already defined" error for the
> below union example. this is with the latest version on linux.
>
> is this supposed to be this way? and if so what am i doing wrong?
>
> % mbld -R u2.myr
> u2.myr:2: `a already defined on u2.myr:7
> FAIL: 6m u2.myr
>
> % 6m u2.myr
> u2.myr:2: `a already defined on u2.myr:7
>
> % cat u2.myr
> type u1 = union
> `a int
> `b flt
> ;;
>
> type u2 = union
> `a flt
> `b char
> ;;
>
> const main = {
>
> }
>
> its error-ing out in stab.c - i've poked a bit around in putucon and
> gram.y, but had to confess to myself that i dont really know what i am
> looking for/at.
>
> Breakpoint 3, putucon (st=0x5555557d1070, uc=0x5555557dc460) at stab.c:495
> 495 lfatal(old->loc, "`%s already defined on %s:%d",
> (gdb) bt
> #0 putucon (st=0x5555557d1070, uc=0x5555557dc460) at stab.c:495
> #1 0x0000555555578d30 in installucons (st=0x5555557d1070,
> t=0x5555557dc6a0) at gram.y:1252
> #2 0x0000555555574484 in yyparse () at gram.y:248
> #3 0x0000555555563e3b in main (argc=2, argv=0x7fffffffe728) at main.c:276
>
> thank you,
> theo.
>
>
>