Put core back into core, persistence becomes a plugin

[p5sagit/Eval-WithLexicals.git] / lib / Eval / WithLexicals / Role / Eval.pm

diff --git a/lib/Eval/WithLexicals/Role/Eval.pm b/lib/Eval/WithLexicals/Role/Eval.pm
deleted file mode 100644 (file)
index 823f2a8..0000000
--- a/lib/Eval/WithLexicals/Role/Eval.pm
+++ /dev/null
@@ -1,126 +0,0 @@
-package Eval::WithLexicals::Role::Eval;
-use Moo::Role;
-use Sub::Quote;
-
-has lexicals => (is => 'rw', default => quote_sub q{ {} });
-
-{
-  my %valid_contexts = map +($_ => 1), qw(list scalar void);
-
-  has context => (
-    is => 'rw', default => quote_sub(q{ 'list' }),
-    isa => sub {
-      my ($val) = @_;
-      die "Invalid context type $val - should be list, scalar or void"
-       unless $valid_contexts{$val};
-    },
-  );
-}
-
-has in_package => (
-  is => 'rw', default => quote_sub q{ 'Eval::WithLexicals::Scratchpad' }
-);
-
-has prelude => (
-  is => 'rw', default => quote_sub q{ 'use strictures 1;' }
-);
-
-sub setup_code {
-  my ($self) = @_;
-
-  return Sub::Quote::capture_unroll('$_[2]', $self->lexicals, 2);
-}
-
-sub capture_code {
-  ( qq{ BEGIN { Eval::WithLexicals::Util::capture_list() } } )
-}
-
-sub eval {
-  my ($self, $to_eval) = @_;
-  local *Eval::WithLexicals::Cage::current_line;
-  local *Eval::WithLexicals::Cage::pad_capture;
-  local *Eval::WithLexicals::Cage::grab_captures;
-
-  my $package = $self->in_package;
-  my $setup_code = join '', $self->setup_code;
-  my $capture_code = join '', $self->capture_code;
-
-  local our $current_code = qq!
-${setup_code}
-sub Eval::WithLexicals::Cage::current_line {
-package ${package};
-#line 1 "(eval)"
-${to_eval}
-;sub Eval::WithLexicals::Cage::pad_capture { }
-${capture_code}
-sub Eval::WithLexicals::Cage::grab_captures {
-  no warnings 'closure'; no strict 'vars';
-  package Eval::WithLexicals::VarScope;!;
-  # rest is appended by Eval::WithLexicals::Util::capture_list, called
-  # during parsing by the BEGIN block from capture_code.
-
-  $self->_eval_do(\$current_code, $self->lexicals, $to_eval);
-  $self->_run(\&Eval::WithLexicals::Cage::current_line);
-}
-
-sub _run {
-  my($self, $code) = @_;
-
-  my @ret;
-  my $ctx = $self->context;
-  if ($ctx eq 'list') {
-    @ret = $code->();
-  } elsif ($ctx eq 'scalar') {
-    $ret[0] = $code->();
-  } else {
-    $code->();
-  }
-  $self->lexicals({
-    %{$self->lexicals},
-    %{$self->_grab_captures},
-  });
-  @ret;
-}
-
-sub _grab_captures {
-  my ($self) = @_;
-  my $cap = Eval::WithLexicals::Cage::grab_captures();
-  foreach my $key (keys %$cap) {
-    my ($sigil, $name) = $key =~ /^(.)(.+)$/;
-    my $var_scope_name = $sigil.'Eval::WithLexicals::VarScope::'.$name;
-    if ($cap->{$key} eq eval "\\${var_scope_name}") {
-      delete $cap->{$key};
-    }
-  }
-  $cap;
-}
-
-sub _eval_do {
-  my ($self, $text_ref, $lexical, $original) = @_;
-  local @INC = (sub {
-    if ($_[1] eq '/eval_do') {
-      open my $fh, '<', $text_ref;
-      $fh;
-    } else {
-      ();
-    }
-  }, @INC);
-  do '/eval_do' or die $@;
-}
-
-{
-  package Eval::WithLexicals::Util;
-
-  use B qw(svref_2object);
-
-  sub capture_list {
-    my $pad_capture = \&Eval::WithLexicals::Cage::pad_capture;
-    my @names = grep $_ ne '&', map $_->PV, grep $_->isa('B::PV'),
-      svref_2object($pad_capture)->OUTSIDE->PADLIST->ARRAYelt(0)->ARRAY;
-    $Eval::WithLexicals::Role::Eval::current_code .=
-      '+{ '.join(', ', map "'$_' => \\$_", @names).' };'
-      ."\n}\n}\n1;\n";
-  }
-}
-
-1;