$perl -we 'my(f($x))'
Can't declare subroutine entry in "my" at -e line 1, at EOF
Execution of -e aborted due to compilation errors.

##</code><code>##

$ perl -we 'my($x = 3)'
Can't declare scalar assignment in "my" at -e line 1, at EOF
Execution of -e aborted due to compilation errors.

##</code><code>##

$ perl -we 'my(local $x)'
Can't localize lexical variable $x at -e line 1.
$ perl -we 'perl -we 'local(my $x)'
Can't localize lexical variable $x at -e line 1.
$

##</code><code>##

$ perl -wE 'sub f {state (my $x); say ++$x} f; f;'
1
1
$ perl -wE 'sub f {my (state $x); say ++$x} f; f;'
1
2
$ perl -wE 'sub f {state my $x; say ++$x} f; f;'
No such class my at -e line 1, near "{state my"
Execution of -e aborted due to compilation errors.

##</code><code>##

$ perl -wE 'sub f {our local $x; say ++$x} f; f;'
No such class local at -e line 1, near "{our local"
Execution of -e aborted due to compilation errors.
$ perl -wE 'sub f {our (local $x); say ++$x} f; f;'
1
1
$ perl -wE 'sub f {local our $x; say ++$x} f; f;'
1
1
$