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Internal error message on Z=> in enum declaration in Rakudo #3049

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p6rt opened this issue Feb 11, 2013 · 6 comments
Closed

Internal error message on Z=> in enum declaration in Rakudo #3049

p6rt opened this issue Feb 11, 2013 · 6 comments
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@p6rt
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@p6rt p6rt commented Feb 11, 2013

Migrated from rt.perl.org#116719 (status was 'resolved')

Searchable as RT116719$

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@p6rt p6rt commented Feb 11, 2013

From @masak

<TimToady> r​: enum Color (<red green purple> Z=> 1,2,4);
<p6eval> rakudo a3869a​: OUTPUT«===SORRY!===␤Method 'returns' not found
for invocant of class 'List'␤»
<TimToady> masak​: ^^
* masak submits TimToady's rakudobug
<masak> r​: say (<red green purple> Z=> 1,2,4).perl
<p6eval> rakudo a3869a​: OUTPUT«("red" => 1, "green" => 2, "purple" => 4).list␤»

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@p6rt p6rt commented Jan 6, 2015

From @usev6

This command no longer results in an internal error message. But the resulting enum is not what I expected in the first place (but maybe it's technically correct)​:

$ perl6 -e 'enum Color (<red green purple> Z=> 1,2,4); say Color.enums'
"red\t1 green\t2 purple\t4" => 0

I get the same result when I add an extra pair of parens around a list of pairs​:

$ perl6 -e 'enum Color (red => 1, green => 2, purple => 4); say Color.enums'
"green" => 2, "purple" => 4, "red" => 1

$ perl6 -e 'enum Color ((red => 1, green => 2, purple => 4)); say Color.enums'
"red\t1 green\t2 purple\t4" => 0

But I cannot just remove the parens in the first example since, since that seems to execute 'enum Color <red green purple' and zip the resulting enum with (1, 2, 4)​:

$ perl6 -e 'say enum Color <red green purple> Z=> 1,2,4; say Color.enums'
Color => 1
"green" => 1, "purple" => 2, "red" => 0

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@p6rt
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@p6rt p6rt commented Jan 6, 2015

From @usev6

This command no longer results in an internal error message. But the resulting enum is not what I expected in the first place (but maybe it's technically correct)​:

$ perl6 -e 'enum Color (<red green purple> Z=> 1,2,4); say Color.enums'
"red\t1 green\t2 purple\t4" => 0

I get the same result when I add an extra pair of parens around a list of pairs​:

$ perl6 -e 'enum Color (red => 1, green => 2, purple => 4); say Color.enums'
"green" => 2, "purple" => 4, "red" => 1

$ perl6 -e 'enum Color ((red => 1, green => 2, purple => 4)); say Color.enums'
"red\t1 green\t2 purple\t4" => 0

But I cannot just remove the parens in the first example since, since that seems to execute 'enum Color <red green purple' and zip the resulting enum with (1, 2, 4)​:

$ perl6 -e 'say enum Color <red green purple> Z=> 1,2,4; say Color.enums'
Color => 1
"green" => 1, "purple" => 2, "red" => 0

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@p6rt p6rt commented Jan 6, 2015

@usev6 - Status changed from 'new' to 'open'

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@p6rt
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@p6rt p6rt commented Dec 1, 2017

From @AlexDaniel

Yeah, this is not correct, and it was resolved in (2017-11-27) rakudo/rakudo@d9021cf

Now you may wonder when the original “Method 'returns' not found” was fixed, and… that was on Parrot :) So not really bisectable and not even relevant today.

W4anD0eR96++ wrote a test for it in Raku/roast@1fbabe9

Closing.

On 2015-01-06 13​:51​:00, bartolin@​gmx.de wrote​:

This command no longer results in an internal error message. But the
resulting enum is not what I expected in the first place (but maybe
it's technically correct)​:

$ perl6 -e 'enum Color (<red green purple> Z=> 1,2,4); say
Color.enums'
"red\t1 green\t2 purple\t4" => 0

I get the same result when I add an extra pair of parens around a list
of pairs​:

$ perl6 -e 'enum Color (red => 1, green => 2, purple => 4); say
Color.enums'
"green" => 2, "purple" => 4, "red" => 1

$ perl6 -e 'enum Color ((red => 1, green => 2, purple => 4)); say
Color.enums'
"red\t1 green\t2 purple\t4" => 0

But I cannot just remove the parens in the first example since, since
that seems to execute 'enum Color <red green purple' and zip the
resulting enum with (1, 2, 4)​:

$ perl6 -e 'say enum Color <red green purple> Z=> 1,2,4; say
Color.enums'
Color => 1
"green" => 1, "purple" => 2, "red" => 0

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@p6rt p6rt commented Dec 1, 2017

@AlexDaniel - Status changed from 'open' to 'resolved'

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@p6rt p6rt closed this Dec 1, 2017
@p6rt p6rt added the Bug label Jan 5, 2020
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