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subscript-adverbs.t
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subscript-adverbs.t
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use v6;
use Test;
plan 110;
# L<S02/Names and Variables/appropriate adverb to the subscript>
# Adverbs on array subscripts
# :p
{
my @array = <A B>;
isa-ok @array[0]:p, Pair,
":p on an array returned a Pair";
is ~(@array[0]:p), "0\tA",
":p on an array returned the correct pair";
lives-ok { (@array[0]:p).value = "a" }, 'can assign to (@array[0]:p).value';
is @array[0], "a",
":p on an array returns lvalues (like normal subscripts do as well)";
is +(@array[0,1]:p), 2,
":p on an array returned a two-elem array";
is ~(@array[0,1]:p), "0\ta 1\tB",
":p on an array returned a two-elem array consisting of the correct pairs";
#?niecza todo 'Cannot use value like Pair as a number'
is +(@array[42,23]:p), 0, ":p on an array weeded out non-existing entries (1)";
#?niecza todo
is ~(@array[42,23]:p), "", ":p on an array weeded out non-existing entries (2)";
} #8
# :kv
{
my @array = <A B>;
is +(@array[0]:kv), 2,
":kv on an array returned a two-elem array";
is ~(@array[0]:kv), "0 A",
":kv on an array returned the correct two-elem array";
lives-ok {(@array[0]:kv)[1] = "a"}, 'can assign to :kv subscripts';
is @array[0], "a",
":kv on an array returns lvalues (like normal subscripts do as well)";
#?niecza todo
is +(@array[0,1]:kv), 4,
":kv on an array returned a four-elem array";
is ~(@array[0,1]:kv), "0 a 1 B",
":kv on an array returned the correct four-elem array";
#?niecza todo
is +(@array[42,23]:kv), 0, ":kv on an array weeded out non-existing entries (1)";
#?niecza todo
is ~(@array[42,23]:kv), "", ":kv on an array weeded out non-existing entries (2)";
} #8
# :k
{
my @array = <A B>;
ok @array[0]:k ~~ Int,
":k on an array returned an integer index";
is ~(@array[0]:k), "0",
":k on an array returned the correct index";
is +(@array[0,1]:k), 2,
":k on an array returned a two-elem array";
is ~(@array[0,1]:k), "0 1",
":k on an array returned the correct two-elem array";
#?niecza todo
is +(@array[42,23]:k), 0, ":k on an array weeded out non-existing entries (1)";
#?niecza todo
is ~(@array[42,23]:k), "", ":k on an array weeded out non-existing entries (2)";
} #6
# :v
{
my @array = <A B>;
#?niecza 2 skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
ok @array[0]:v ~~ Str,
":v on an array returned the right type of value";
is ~(@array[0]:v), "A",
":v on an array returned the correct value";
#?niecza todo
dies-ok {@array[0]:v = "a"}, 'cannot assign to @array[0]:v';
#?niecza todo
is @array[0], "A",
":v on an array returns rvalues (unlike normal subscripts)";
#?niecza skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
is +(@array[0,1]:v), 2,
":v on an array returned a tow-elem array";
#?niecza skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
is ~(@array[0,1]:v), "A B",
":v on an array returned the correct two-elem array";
#?niecza skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
is +(@array[42,23]:v), 0, ":v on an array weeded out non-existing entries (1)";
#?niecza skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
is ~(@array[42,23]:v), "", ":v on an array weeded out non-existing entries (2)";
} #8
# Adverbs on hash subscripts
# :p
{
my %hash = (0 => "A", 1 => "B");
isa-ok %hash<0>:p, Pair,
":p on a hash returned a Pair";
is ~(%hash<0>:p), "0\tA",
":p on a hash returned the correct pair";
lives-ok { (%hash<0>:p).value = "a"}, 'can assign to %hash<0>:p.value';
is %hash<0>, "a",
":p on a hash returns lvalues (like normal subscripts do as well)";
is +(%hash<0 1>:p), 2,
":p on a hash returned a two-elem array";
is ~(%hash<0 1>:p), "0\ta 1\tB",
":p on a hash returned a two-elem array consisting of the correct pairs";
#?niecza todo 'Cannot use value like Pair as a number'
is +(%hash<42 23>:p), 0, ":p on a hash weeded out non-existing entries (1)";
#?niecza todo
is ~(%hash<42 23>:p), "", ":p on a hash weeded out non-existing entries (2)";
} #8
# :kv
{
my %hash = (0 => "A", 1 => "B");
is +(%hash<0>:kv), 2,
":kv on a hash returned a two-elem array";
is ~(%hash<0>:kv), "0 A",
":kv on a hash returned the correct two-elem array";
lives-ok {(%hash<0>:kv)[1] = "a"}, 'can assign to %hash<0>:kv.[1]';
is %hash<0>, "a",
":kv on a hash returns lvalues (like normal subscripts do as well)";
#?niecza todo
is +(%hash<0 1>:kv), 4,
":kv on a hash returned a four-elem array";
is ~(%hash<0 1>:kv), "0 a 1 B",
":kv on a hash returned the correct four-elem array";
#?niecza todo
is +(%hash<42 23>:kv), 0, ":kv on a hash weeded out non-existing entries (1)";
#?niecza todo
is ~(%hash<42 23>:kv), "", ":kv on a hash weeded out non-existing entries (2)";
} #8
# :k
{
my %hash = (0 => "A", 1 => "B");
#?niecza todo
ok %hash<0>:k ~~ Str,
":k on a hash returned the correct key type";
is ~(%hash<0>:k), "0",
":k on a hash returned the correct key name";
is +(%hash<0 1>:k), 2,
":k on a hash returned a tow-elem array";
is ~(%hash<0 1>:k), "0 1",
":k on a hash returned the correct two-elem array";
#?niecza todo
is +(%hash<42 23>:k), 0, ":k on a hash weeded out non-existing entries (1)";
#?niecza todo
is ~(%hash<42 23>:k), "", ":k on a hash weeded out non-existing entries (2)";
} #6
# :v
{
my %hash = (0 => "A", 1 => "B");
#?niecza skip 'Excess arguments to KERNEL Hash.postcircumfix:<{ }>, unused named v'
ok %hash<0> ~~ Str,
":v on a hash returns the correct type of value";
#?niecza skip 'Excess arguments to KERNEL Hash.postcircumfix:<{ }>, unused named v'
is ~(%hash<0>:v), "A",
":v on a hash returned the correct value";
#?niecza todo
dies-ok {%hash<0>:v = "a"}, 'can assign to %hash<0>:v';
#?niecza todo
is %hash<0>, "A", ":v on a hash returns rvalues (unlike normal subscripts)";
#?niecza skip 'Excess arguments to KERNEL Hash.postcircumfix:<{ }>, unused named v'
is +(%hash<0 1>:v), 2,
":v on a hash returned a two-elem array";
#?niecza skip 'Excess arguments to KERNEL Hash.postcircumfix:<{ }>, unused named v'
is ~(%hash<0 1>:v), "A B",
":v on a hash returned the correct two-elem array";
#?niecza skip 'Excess arguments to KERNEL Hash.postcircumfix:<{ }>, unused named v'
is +(%hash<42 23>:v), 0, ":v on a hash weeded out non-existing entries (1)";
#?niecza skip 'Excess arguments to KERNEL Hash.postcircumfix:<{ }>, unused named v'
is ~(%hash<42 23>:v), "", ":v on a hash weeded out non-existing entries (2)";
} #8
# array adverbials that can weed out
{
my @array; @array[0] = 42; @array[2] = 23; # = (42, Mu, 23);
# []:kv
#?niecza 4 todo
is +(@array[0,1,2]:kv), 4,
"non-existing entries should be weeded out (1:kv)";
is-deeply @array[0,1,2]:kv, (0,42,2,23),
"non-existing entries should be weeded out (2:kv)";
is +(@array[0,1,2]:!kv), 6,
"non-existing entries should not be weeded out (1:!kv)";
is-deeply @array[0,1,2]:!kv, (0,42,1,Any,2,23),
"non-existing entries should not be weeded out (2:!kv)";
# []:p
#?niecza 2 todo
is +(@array[0,1,2]:p), 2,
"non-existing entries should be weeded out (1:p)";
is-deeply @array[0,1,2]:p, (0=>42,2=>23),
"non-existing entries should be weeded out (2:p)";
is +(@array[0,1,2]:!p), 3,
"non-existing entries should not be weeded out (1:!p)";
is-deeply @array[0,1,2]:!p, (0=>42,1=>Any,2=>23),
"non-existing entries should not be weeded out (2:!p)";
# []:k
#?niecza 2 todo
is +(@array[0,1,2]:k), 2,
"non-existing entries should be weeded out (1:k)";
is-deeply @array[0,1,2]:k, (0,2),
"non-existing entries should be weeded out (2:k)";
is +(@array[0,1,2]:!k), 3,
"non-existing entries should not be weeded out (1:!k)";
is-deeply @array[0,1,2]:!k, (0,1,2),
"non-existing entries should not be weeded out (2:!k)";
# []:v
#?niecza 4 skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
is +(@array[0,1,2]:v), 2,
"non-existing entries should be weeded out (1:v)";
is-deeply @array[0,1,2]:v, (42,23),
"non-existing entries should be weeded out (2:v)";
is +(@array[0,1,2]:!v), 3,
"non-existing entries should not be weeded out (1:!v)";
is-deeply @array[0,1,2]:!v, (42,Any,23),
"non-existing entries should not be weeded out (2:!v)";
} #16
# array subscript adverbial weeds out non-existing entries, but undefined (but
# existing) entries should be unaffected by this rule.
{
my @array = (42, Any, 23);
# []:kv
#?niecza 4 todo
is +(@array[0,1,2]:kv), 6,
"undefined but existing entries should not be weeded out (1:kv)";
is-deeply @array[0,1,2]:kv, (0,42,1,Any,2,23),
"undefined but existing entries should not be weeded out (2:kv)";
is +(@array[0,1,2]:!kv), 6,
"undefined but existing entries should not be weeded out (1:!kv)";
is-deeply @array[0,1,2]:!kv, (0,42,1,Any,2,23),
"undefined but existing entries should not be weeded out (2:!kv)";
# []:p
is +(@array[0,1,2]:p), 3,
"undefined but existing entries should not be weeded out (1:p)";
is-deeply @array[0,1,2]:p, (0=>42,1=>Any,2=>23),
"undefined but existing entries should not be weeded out (2:p)";
is +(@array[0,1,2]:!p), 3,
"undefined but existing entries should not be weeded out (1:!p)";
is-deeply @array[0,1,2]:!p, (0=>42,1=>Any,2=>23),
"undefined but existing entries should not be weeded out (2:!p)";
# []:k
is +(@array[0,1,2]:k), 3,
"undefined but existing entries should not be weeded out (1:k)";
is-deeply @array[0,1,2]:k, (0,1,2),
"undefined but existing entries should not be weeded out (2:k)";
is +(@array[0,1,2]:!k), 3,
"undefined but existing entries should not be weeded out (1:!k)";
is-deeply @array[0,1,2]:!k, (0,1,2),
"undefined but existing entries should not be weeded out (2:!k)";
#?niecza 4 skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
# []:v
is +(@array[0,1,2]:v), 3,
"undefined but existing entries should not be weeded out (1:v)";
is-deeply @array[0,1,2]:v, (42,Any,23),
"undefined but existing entries should not be weeded out (2:v)";
is +(@array[0,1,2]:!v), 3,
"undefined but existing entries should not be weeded out (1:!v)";
is-deeply @array[0,1,2]:!v, (42,Any,23),
"undefined but existing entries should not be weeded out (2:!v)";
} #16
# hash adverbials that can weed out
{
my %hash = (0 => 42, 2 => 23);
# {}:kv
#?niecza 4 todo
is +(%hash<0 1 2>:kv), 4,
"non-existing entries should be weeded out (3:kv)";
is-deeply %hash<0 1 2>:kv, (val("0"),42,val("2"),23),
"non-existing entries should be weeded out (4:kv)";
is +(%hash<0 1 2>:!kv), 6,
"non-existing entries should be weeded out (3:!kv)";
is-deeply %hash<0 1 2>:!kv, (val("0"),42,val("1"),Any,val("2"),23),
"non-existing entries should be weeded out (4:!kv)";
# {}:p
#?niecza 2 todo
is +(%hash<0 1 2>:p), 2,
"non-existing entries should be weeded out (3:p)";
is-deeply %hash<0 1 2>:p, (val("0")=>42,val("2")=>23),
"non-existing entries should be weeded out (4:p)";
is +(%hash<0 1 2>:!p), 3,
"non-existing entries should not be weeded out (3:!p)";
#?niecza todo
is-deeply %hash<0 1 2>:!p, (val("0")=>42,val("1")=>Any,val("2")=>23),
"non-existing entries should not be weeded out (4:!p)";
#?niecza 2 todo
# {}:k
is +(%hash<0 1 2>:k), 2,
"non-existing entries should be weeded out (3:k)";
is-deeply %hash<0 1 2>:k, <0 2>,
"non-existing entries should be weeded out (4:k)";
is +(%hash<0 1 2>:!k), 3,
"non-existing entries should not be weeded out (3:!k)";
is-deeply %hash<0 1 2>:!k, <0 1 2>,
"non-existing entries should not be weeded out (4:!k)";
# {}:v
#?niecza 4 skip 'Excess arguments to KERNEL Array.postcircumfix:<[ ]>, unused named v'
is +(%hash<0 1 2>:v), 2,
"non-existing entries should be weeded out (3:v)";
is-deeply %hash<0 1 2>:v, (42,23),
"non-existing entries should be weeded out (4:v)";
is +(%hash<0 1 2>:!v), 3,
"non-existing entries should not be weeded out (3:!v)";
is-deeply %hash<0 1 2>:!v, (42,Any,23),
"non-existing entries should not be weeded out (4:!v)";
} #16
# RT #120739
{
my @array;
lives-ok { for @array[*]:kv -> $k, $v { } },
'RT #120739 :kv on an whatever slice of an empty array used in for loop';
my %hash;
lives-ok { for %hash{*}:kv -> $k, $v { } },
'RT #120739 :kv on an whatever slice of an empty hash used in for loop';
}
# vim: ft=perl6