@x = foo();     # foo called with list context
$x = (foo());   # foo called with scalar context
                # note parens have no effect
$x = (foo())[@foo]; # foo called with list context

##</code><code>##

@x = foo();     # foo called in list context
$x = (foo());   # foo called in scalar context
                # note parens have no effect
($x) = foo();   # foo called in list context, note lack
                # of parens around foo has no effect

##</code><code>##

foo() x 2;        # foo called in scalar context
$x = foo() x 2;   # foo called in scalar context
@x = foo() x 2;   # foo called in scalar context
(foo()) x 2;      # foo called in void context
$x = (foo()) x 2; # foo called in scalar context
@x = (foo()) x 2; # foo called in list context