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adverbial-modifiers.t
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adverbial-modifiers.t
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use v6;
use Test;
plan 42;
# L<S03/Invocant marker/"will apply the :xxx adverb">
sub prefix:<blub> (Str $foo, Int :$times = 1) {
("BLUB" x $times) ~ $foo;
}
is prefix:<blub>("bar"), 'BLUBbar', 'user-defined prefix operator, long name';
is prefix:<blub>("bar", times => 2), 'BLUBBLUBbar', 'user-defined prefix operator, long name, optional parameter';
is prefix:<blub>(:times(2), "bar"), 'BLUBBLUBbar', 'user-defined prefix operator, long name, :times adverb, leading';
is prefix:<blub>("bar", :times(2)), 'BLUBBLUBbar', 'user-defined prefix operator, long name, :times adverb, trailing';
is blub "bar", 'BLUBbar', 'user-defined prefix operator, basic call';
is blub "bar" :times(2), 'BLUBBLUBbar', 'user-defined prefix operator, :times adverb, space';
is blub "bar":times(2), 'BLUBBLUBbar', 'user-defined prefix operator, :times adverb, no space';
{
# These basic adverb tests are copied from a table in A12.
my $bar = 123;
my @many = (4,5);
sub dostuff(){"stuff"}
my ($v,$e);
$e = (foo => $bar);
$v = :foo($bar);
is ~$v, ~$e, ':foo($bar)';
$e = (foo => [1,2,3,@many]);
$v = :foo[1,2,3,@many];
is ~$v, ~$e, ':foo[1,2,3,@many]';
$e = (foo => «alice bob charles»);
$v = :foo«alice bob charles»;
is ~$v, ~$e, ':foo«alice bob charles»';
$e = (foo => 'alice');
$v = :foo«alice»;
is ~$v, ~$e, ':foo«alice»';
$e = (foo => { a => 1, b => 2 });
$v = EVAL ':foo{ a => 1, b => 2 }';
is ~$v, ~$e, ':foo{ a => 1, b => 2 }';
$e = (foo => { dostuff() });
$v = :foo{ dostuff() };
is ~$v, ~$e, ':foo{ dostuff() }';
$e = (foo => 0);
$v = :foo(0);
is ~$v, ~$e, ':foo(0)';
$e = (foo => Bool::True);
$v = :foo;
is ~$v, ~$e, ':foo';
}
# Exercise various mixes of "fiddle", parens "()",
# and adverbs with "X' and without "x" an argument.
sub violin($x) {
if $x ~~ Bool {
$x ?? "1" !! "0";
} else {
$x;
}
}
sub fiddle(:$x,:$y){ violin($x) ~ violin($y) }
#?niecza skip 'Multi colonpair syntax not yet understood'
{
# fiddle(XY) fiddle(YX) fiddle(xY) fiddle(Xy)
is fiddle(:x("a"):y("b")), "ab", 'fiddle(:x("a"):y("b"))';
is fiddle(:y("b"):x("a")), "ab", 'fiddle(:y("b"):x("a"))';
is fiddle(:x:y("b")), "1b", 'fiddle(:x:y("b"))';
is fiddle(:x("a"):y), "a1", 'fiddle(:x("a"):y)';
}
{
# fiddle(X)Y fiddle(Y)X fiddle(x)Y fiddle(X)y fiddle(x)y
is fiddle(:x("a")):y("b"), "ab", 'fiddle(:x("a")):y("b")';
is fiddle(:y("b")):x("a"), "ab", 'fiddle(:y("b")):x("a")';
is fiddle(:x):y("b"), "1b", 'fiddle(:x("a")):y("b")';
is fiddle(:x("a")):y, "a1", 'fiddle(:x("a")):y';
is fiddle(:x):y, "11", 'fiddle(:x):y';
}
{
# fiddle()XY fiddle()YX fiddle()xY fiddle()Xy fiddle()xy
is fiddle():x("a"):y("b"), "ab", 'fiddle():x("a"):y("b")';
is fiddle():y("b"):x("a"), "ab", 'fiddle():y("b"):x("a")';
is fiddle():x:y("b"), "1b", 'fiddle():x:y("b")';
is fiddle():x("a"):y, "a1", 'fiddle():x("a"):y';
is fiddle():x:y, "11", 'fiddle():x:y';
}
{
# f_X(Y) f_X_Y() f_X_Y_() f_XY_() f_XY() fXY ()
# $v = fiddle :x("a")(:y("b"));
# is $v, "ab", 'fiddle :x("a")(:y("b"))';
# Since the demagicalizing of pairs, this test shouldn't and doesn't work any
# longer.
# $v = 'EVAL failed';
# EVAL '$v = fiddle :x("a") :y("b")()';
# is $v, "ab", 'fiddle :x("a") :y("b")()';
# $v = 'EVAL failed';
# EVAL '$v = fiddle :x("a") :y("b") ()';
# is $v, "ab", 'fiddle :x("a") :y("b") ()';
# $v = 'EVAL failed';
# EVAL '$v = fiddle :x("a"):y("b") ()';
# is $v, "ab", 'fiddle :x("a"):y("b") ()';
# $v = 'EVAL failed';
# EVAL '$v = fiddle :x("a"):y("b")()';
# is $v, "ab", 'fiddle :x("a"):y("b")()';
# $v = fiddle:x("a"):y("b") ();
# is $v, "ab", 'fiddle:x("a"):y("b") ()';
}
{
# Exercise mixes of adverbs and positional arguments.
my $v;
my sub f($s,:$x) { violin($x) ~ violin($s) }
my sub g($s1,$s2,:$x) {$s1~$x~$s2}
my sub h(*@a) {@a.perl}
my sub i(*%h) {%h.perl}
my sub j($s1,$s2,*%h) {$s1~%h.perl~$s2}
# f(X s) f(Xs) f(s X) f(sX) f(xs) f(sx)
is f(:x("a"), "b"), "ab", 'f(:x("a") "b")';
is f(:x("a"),"b"), "ab", 'f(:x("a")"b")';
is f("b", :x("a")), "ab", 'f("b" :x("a"))';
is f("b",:x("a")), "ab", 'f("b":x("a"))';
is f(:x, "b"), "1b", 'f(:x "b")';
is f("b", :x), "1b", 'f("b" :x)';
# f(s)X
is f("b"):x("a"), "ab", 'f("b"):x("a")';
# fs X fsX fs x fsx
# $v = f "b" :x("a");
# is $v, "ab", 'f "b" :x("a")';
# $v = f "b":x("a");
# is $v, "ab", 'f "b":x("a")';
# $v = f "b" :x;
# is $v, "1b", 'f "b" :x';
# $v = f "b":x;
# is $v, "1b", 'f "b":x';
# add more tests...
}
#?niecza skip 'Multi colonpair syntax not yet understood'
#?rakudo todo 'Multi colonpair syntax not yet understood'
{ # adverbs as pairs
my sub f1($s,:$x){$s.perl~$x}
is f1(\:bar :x("b")), '("bar" => Bool::True)b', 'f1(\:bar :x("b"))';
}
{
# adverbs as pairs, cont.
my sub f2(Pair $p){$p.perl}
is f2((:bar)), ("bar" => Bool::True).perl, 'f2((:bar))';
my sub f3(Pair $p1, Pair $p2){$p1.perl~" - "~$p2.perl}
is f3((:bar),(:hee(3))), "{(bar => Bool::True).perl} - {(hee => 3).perl}", 'f3((:bar),(:hee(3)))';
}
{
# Exercise adverbs on operators.
sub prefix:<zpre>($a,:$x){join(",",$a,$x)}
is (zpre 4 :x(5)), '4,5', '(zpre 4 :x(5))';
sub postfix:<zpost>($a,:$x){join(",",$a,$x)}
is (4zpost :x(5)), '4,5', '(4 zpost :x(5))';
sub infix:<zin>($a,$b,:$x){join(",",$a,$b,$x)}
is (3 zin 4 :x(5)), '3,4,5', '(3 zin 4 :x(5))';
}
# vim: ft=perl6