Does anyone can see what is wrong with this code?, I am looking how to make an OO module but I am having trouble passing arguments in a hash form like this:

mySub(
    opt1 => $value1
    opt2 => $value2
    opt3 => $value3
)

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The concrete problem is the code below, I am expecting to print "one" but I get an error. 
#!/usr/bin/perl
use strict;

hash(
    uno => 'one',
    dos => 'two',
    tres => 'three',
);

sub hash {
    my $param = @_; 
    print $param->{uno}, "\n";
}

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When I execute that code I get the following error:

~/programming/perl/oo$ ./test.pl 
Can't use string ("6") as a HASH ref while "strict refs" in use at ./t
+est.pl line 7.

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Thanks

In reply to hash ref 101 by gmoque

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