# New Ticket Created by Tobias Leich
# Please include the string: [perl #123596]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/Ticket/Display.html?id=123596 >
FROGGS: m: multi car($x, [$y, @ys] where $x == 1) {1}; say car 1, [1,
[2, 3]];
camelia: rakudo-moar d69491: OUTPUT«1»
FROGGS: m: multi car($x, [$y, @ys] where $x == $y) {1}; say car 1, [1,
[2, 3]];
camelia: rakudo-moar d69491: OUTPUT«Cannot call 'infix:<==>'; none of
these signatures match::(Any $?):(Any \a, Any \b):(Real \a, Real
\b):(Int:D \a, Int:D \b):(int $a, int $b):(Num:D \a, Num:D \b -->
Bool):(num $a, num $b --> Bool):(Rational:D \a, Rational:D \b):(…»
And also:
andreoss: m: multi car($x, [$y, @ys] where $x == $y) {1}; say car 1,
[1,2,3];
camelia: rakudo-moar d69491: OUTPUT«Cannot call 'infix:<==>'; none of
these signatures match::(Any $?):(Any \a, Any \b):(Real \a, Real
\b):(Int:D \a, Int:D \b):(int $a, int $b):(Num:D \a, Num:D \b -->
Bool):(num $a, num $b --> Bool):(Rational:D \a, Rational:D \b):(…»
andreoss: could that be a bug?
moritz: m: say 1 == [1, 2, 3]
camelia: rakudo-moar d69491: OUTPUT«False»
moritz: m: multi car($x, [$y, *@ys] where $x == $y) {1}; say car 1, [1,
2, 3]
camelia: rakudo-moar d69491: OUTPUT«Cannot call 'infix:<==>'; none of
these signatures match::(Any $?):(Any \a, Any \b):(Real \a, Real
\b):(Int:D \a, Int:D \b):(int $a, int $b):(Num:D \a, Num:D \b -->
Bool):(num $a, num $b --> Bool):(Rational:D \a, Rational:D \b):(…»
moritz: m: multi car($x, [$y, *@ys] where { $x == $y }) {1}; say car 1,
[1, 2, 3]
camelia: rakudo-moar d69491: OUTPUT«Cannot call 'infix:<==>'; none of
these signatures match::(Any $?):(Any \a, Any \b):(Real \a, Real
\b):(Int:D \a, Int:D \b):(int $a, int $b):(Num:D \a, Num:D \b -->
Bool):(num $a, num $b --> Bool):(Rational:D \a, Rational:D \b):(…»
moritz: huh
moritz: m: multi car($x, [$y, *@ys] where { say (:$x, :$y).perl; $x ==
$y }) {1}; say car 1, [1, 2, 3]
camelia: rakudo-moar d69491: OUTPUT«("x" => 1, "y" => Mu)Cannot call
'infix:<==>'; none of these signatures match::(Any $?):(Any \a, Any
\b):(Real \a, Real \b):(Int:D \a, Int:D \b):(int $a, int $b):(Num:D
\a, Num:D \b --> Bool):(num $a, num $b --> Bool):(Rational:D…»
moritz: m: multi car($x, @ [$y, *@ys] where { say (:$x, :$y).perl; $x
== $y }) {1}; say car 1, [1, 2, 3]
camelia: rakudo-moar d69491: OUTPUT«("x" => 1, "y" => Mu)Cannot call
'infix:<==>'; none of these signatures match::(Any $?):(Any \a, Any
\b):(Real \a, Real \b):(Int:D \a, Int:D \b):(int $a, int $b):(Num:D
\a, Num:D \b --> Bool):(num $a, num $b --> Bool):(Rational:D…»
moritz: m: sub f($x, [$y, *@ys]) { say (:$x, :$y, :@ys).perl }; f 1, [2,
3, 4]
camelia: rakudo-moar d69491: OUTPUT«("x" => 1, "y" => 2, "ys" => [3, 4])»
moritz: m: sub f($x, [$y, *@ys] where { say $y.perl } ) { say (:$x, :$y,
:@ys).perl }; f 1, [2, 3, 4]
camelia: rakudo-moar d69491: OUTPUT«Cannot call method 'perl' on a null
object in sub f at /tmp/UT7XBanYbi:1 in block <unit> at
/tmp/UT7XBanYbi:1»
moritz: andreoss: seems like variables extracted from subsignatures
aren't available in where-blocks
moritz: andreoss: and yes, that's a bug
