#!perl -T

use strict;
use warnings;

use Test::More tests => 19 * (3 + 4) + 5 + 1;

use Config qw<%Config>;

use Variable::Magic qw<wizard cast dispell VMG_OP_INFO_NAME VMG_OP_INFO_OBJECT>;

sub Variable::Magic::TestPkg::foo { }

my $is_5130_release = ("$]" == 5.013 && !$Config{git_describe}) ? 1 : 0;

my $aelem     = "$]" <= 5.008_003 ? 'aelem'
                                  : ("$]" < 5.013 or $is_5130_release)
                                                   ? 'aelemfast'
                                                   : 'sassign';
my $aelemf    = ("$]" < 5.013 or $is_5130_release) ? 'aelemfast' : 'sassign';
my $aelemf_op = ($aelemf eq 'sassign')
                   ? 'B::BINOP' : $Config{useithreads} ? 'B::PADOP' : 'B::SVOP';
my $meth_op   = ("$]" < 5.021_005) ? 'B::SVOP' : 'B::METHOP';
my $trutf_op  = ($Config{useithreads} && "$]" >= 5.008_009)
                   ? 'B::PADOP' : 'B::SVOP';
my $deref     = ("$]" < 5.021_007) ? 'helem' : 'multideref';
my $deref_op  = ($deref eq 'multideref') ? 'B::UNOP_AUX' : 'B::UNOP';

our @o;

my @tests = (
 [ 'len', '@c',      'my @c',    'my $x = @c',     [ 'padav',   'B::OP'     ] ],
 [ 'get', '$c[0]',   'my @c',    'my $x = $c[0]',  [ $aelem,    'B::OP'     ] ],
 [ 'get', '$o[0]',   'local @o', 'my $x = $o[0]',  [ $aelemf,   $aelemf_op  ] ],
 [ 'get', '$x->{a}', 'my $x',    'my $y = $x->{a}{b}',
                                                   [ $deref,    $deref_op   ] ],
 [ 'get', '$c',    'my $c = 1',  '++$c',           [ 'preinc',  'B::UNOP'   ] ],
 [ 'get', '$c',    'my $c = 1',  '$c ** 2',        [ 'pow',     'B::BINOP'  ] ],
 [ 'get', '$c',    'my $c = 1',  'my $x = $c',     [ 'sassign', 'B::BINOP'  ] ],
 [ 'get', '$c',    'my $c = 1',  '1 if $c',        [ 'and',     'B::LOGOP'  ] ],
 [ 'get', '$c',    'my $c = []', 'ref $c',         [ 'ref',     'B::UNOP'   ] ],
 [ 'get', '$c',    'my $c = $0', '-f $c',          [ 'ftfile',  'B::UNOP'   ] ],
 [ 'get', '$c',    'my $c = "Z"',
                   'my $i = 1; Z:goto $c if $i--', [ 'goto',    'B::UNOP'   ] ],
 [ 'set', '$c',    'my $c = 1',  'bless \$c, "main"',
                                                   [ 'bless',   'B::LISTOP' ] ],
 [ 'get', '$c',    'my $c = ""', '$c =~ /x/',      [ 'match',   'B::PMOP'   ] ],
 [ 'get', '$c',    'my $c = "Variable::Magic::TestPkg"',
                                 '$c->foo()', [ 'method_named', $meth_op    ] ],
 [ 'get', '$c',    'my $c = ""', '$c =~ y/x/y/',   [ 'trans',   'B::PVOP'   ] ],
 [ 'get', '$c',    'my $c = ""', '$c =~ y/\x{100}//',
                                                   [ 'trans',   $trutf_op   ] ],
 [ 'get', '$c',    'my $c = 1',  '1 for 1 .. $c',
                                                 [ 'enteriter', 'B::LOOP'   ] ],
 [ 'free','$c',    'my $c = 1',  'last',           [ 'last',    'B::OP'     ] ],
 [ 'free','$c', 'L:{my $c = 1',  'last L}',        [ 'last',    'B::OP'     ] ],
);

our $done;

my $OP_INFO_NAME   = VMG_OP_INFO_NAME;
my $OP_INFO_OBJECT = VMG_OP_INFO_OBJECT;

for (@tests) {
 my ($key, $var, $init, $test, $exp) = @$_;

 for my $op_info ($OP_INFO_NAME, $OP_INFO_OBJECT) {
  my $wiz;

  # We must test for the $op correctness inside the callback because, if we
  # bring it out, it will go outside of the eval STRING scope, and what it
  # points to will no longer exist.
  eval {
   $wiz = wizard $key => sub {
    return if $done;
    my $op = $_[-1];
    my $desc = "$key magic with op_info == $op_info";
    if ($op_info == $OP_INFO_NAME) {
     is $op, $exp->[0], "$desc gets the right op info";
    } elsif ($op_info == $OP_INFO_OBJECT) {
     isa_ok $op, $exp->[1], $desc;
     is $op->name, $exp->[0], "$desc gets the right op info";
    } else {
     is $op, undef, "$desc gets the right op info";
    }
    $done = 1;
    ()
   }, op_info => $op_info
  };
  is $@, '', "$key wizard with op_info == $op_info doesn't croak";

  local $done = 0;

  my $testcase = "{ $init; cast $var, \$wiz; $test }";

  eval $testcase;
  is $@, '', "$key magic with op_info == $op_info doesn't croak";
  diag $testcase if $@;
 }
}

{
 my $c;

 my $wiz = eval {
  wizard get => sub {
    is $_[-1], undef, 'get magic with out of bounds op_info';
   },
   op_info => 3;
 };
 is $@, '', "get wizard with out of bounds op_info doesn't croak";

 eval { cast $c, $wiz };
 is $@, '', "get cast with out of bounds op_info doesn't croak";

 eval { my $x = $c };
 is $@, '', "get magic with out of bounds op_info doesn't croak";

 eval { dispell $c, $wiz };
 is $@, '', "get dispell with out of bounds op_info doesn't croak";
}

{
 local $@;
 my $wiz = eval {
  local $SIG{__WARN__} = sub { die @_ };
  wizard op_info => "hlagh";
 };
 like $@, qr/^Argument "hlagh" isn't numeric in subroutine entry at \Q$0\E/,
      'wizard(op_info => "text") throws numeric warnings';
}