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| luke at bluetail.com |
 Posted: Thu Apr 01, 2004 9:57 am |
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Guest
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Ahoy,
The patch below adds support for two types of guards in the
debugger's Erlang interpreter:
Var
not <Expr>
It just translates them into:
Var == true
<Expr> /= true
These seem to be new features added to Erlang but not this
interpreter.
If you use these guards in your programs and you have seen Distel
blowing up when you interpret your modules, I recommend applying this
in lib/debugger/src/ :-)
P.S., is there any technical reason not to rewrite the Erlang
interpreters in the debugger and/or shell to interpret Core Erlang
instead?
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| dgud at erix.ericsson.se |
| Posted: Thu Apr 01, 2004 10:11 am |
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Guest
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I have already fixed that, along with a long list of other bugs.
It will be available in next erlang release.
Cheers
/Dan
Luke Gorrie writes:
> Ahoy,
>
> The patch below adds support for two types of guards in the
> debugger's Erlang interpreter:
>
> Var
> not <Expr>
>
> It just translates them into:
>
> Var == true
> <Expr> /= true
>
> These seem to be new features added to Erlang but not this
> interpreter.
>
> If you use these guards in your programs and you have seen Distel
> blowing up when you interpret your modules, I recommend applying this
> in lib/debugger/src/ 
>
> P.S., is there any technical reason not to rewrite the Erlang
> interpreters in the debugger and/or shell to interpret Core Erlang
> instead?
>
> --- dbg_iload.erl.~1.1.1.5.~ 2003-09-02 15:34:28.000000000 +0200
> +++ dbg_iload.erl 2004-04-01 11:29:01.000000000 +0200
> _at__at_ -243,6 +243,8 _at__at_
> error ->
> {safe_bif,Line,erlang,F,As}
> end;
> +guard_test({op,Line,'not',L0}) ->
> + guard_test({op,Line,'/=',L0,{atom,Line,true}});
> guard_test({op,Line,Op,L0}) ->
> true = erl_internal:arith_op(Op, 1), %Assertion.
> L1 = gexpr(L0),
> _at__at_ -258,7 +260,8 _at__at_
> guard_test({char,_,_}=C) -> C;
> guard_test({float,_,_}=F) -> F;
> guard_test({atom,_,_}=A) -> A;
> -guard_test({nil,_}=N) -> N.
> +guard_test({nil,_}=N) -> N;
> +guard_test({var,Line,_}=V) -> guard_test({op,Line,'==',V,{atom,Line,true}}).
>
> map_guard_bif(integer, 1) -> {ok,is_integer};
> map_guard_bif(float, 1) -> {ok,is_float};
--
Dan Gudmundsson Project: Mnesia, Erlang/OTP
Ericsson Utvecklings AB Phone: +46 8 727 5762
UAB/F/P Mobile: +46 70 519 9469
S-125 25 Stockholm Visit addr: Armborstv 1
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| luke at bluetail.com |
| Posted: Tue Apr 06, 2004 12:23 pm |
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Guest
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Dan Gudmundsson <dgud_at_erix.ericsson.se> writes:
> I have already fixed that, along with a long list of other bugs.
> It will be available in next erlang release.
We're hitting another debugger crash. This time it's a 'badarg' from
the erts_debug:make_fun when called from dbg_ieval:expr. I don't have
the exact backtrace handy, but conspicously the 'Uniq' variable was
bound to 'undefined'.
Does that sound like something you've fixed?
Are there still OTP snapshots stashed in secret hideouts on the web?
I could use one to diff against.
-Luke
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| dgud at erix.ericsson.se |
| Posted: Tue Apr 06, 2004 12:27 pm |
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Guest
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Luke Gorrie writes:
> Dan Gudmundsson <dgud_at_erix.ericsson.se> writes:
>
> > I have already fixed that, along with a long list of other bugs.
> > It will be available in next erlang release.
>
> We're hitting another debugger crash. This time it's a 'badarg' from
> the erts_debug:make_fun when called from dbg_ieval:expr. I don't have
> the exact backtrace handy, but conspicously the 'Uniq' variable was
> bound to 'undefined'.
>
> Does that sound like something you've fixed?
I don't know, I have rewritten how funs are handled,
Probably because the erts_debug:make_fun are never called now.
> Are there still OTP snapshots stashed in secret hideouts on the web?
> I could use one to diff against.
I don't know..
> -Luke
/Dan
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