diff options
Diffstat (limited to 'lib/App/REPL/Plugin/Hints.pm')
-rw-r--r-- | lib/App/REPL/Plugin/Hints.pm | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/lib/App/REPL/Plugin/Hints.pm b/lib/App/REPL/Plugin/Hints.pm new file mode 100644 index 0000000..9d198e2 --- /dev/null +++ b/lib/App/REPL/Plugin/Hints.pm @@ -0,0 +1,50 @@ +package App::REPL::Plugin::Hints; + +my $default_hints; +my $default_hinthash; +my $default_warning_bits; +BEGIN { + $default_hints = $^H; + $default_hinthash = \%^H; + $default_warning_bits = ${^WARNING_BITS}; +} + +use strict; +use warnings; + +use base 'App::REPL::Plugin'; + +sub new { + my $class = shift; + + my $self = $class->SUPER::new(@_); + $self->{hints} = $default_hints; + $self->{hinthash} = $default_hinthash; + $self->{warning_bits} = $default_warning_bits; + + return $self; +} + +sub evaluate { + my $self = shift; + my ($next, $line, %args) = @_; + + # XXX it'd be nice to avoid using globals here, but we can't use + # eval_closure's environment parameter since we need to access the + # information in a BEGIN block + our $hints = $self->{hints}; + our $hinthash = $self->{hinthash}; + our $warning_bits = $self->{warning_bits}; + + $line = "BEGIN { \$^H = \$" . __PACKAGE__ . "::hints; \%^H = \%\$" . __PACKAGE__ . "::hinthash; \${^WARNING_BITS} = \$" . __PACKAGE__ . "::warning_bits } $line; BEGIN { \$" . __PACKAGE__ . "::hints = \$^H; \$" . __PACKAGE__ . "::hinthash = \\\%^H; \$" . __PACKAGE__ . "::warning_bits = \${^WARNING_BITS} }"; + + my @result = $next->($line, %args); + + $self->{hints} = $hints; + $self->{hinthash} = $hinthash; + $self->{warning_bits} = $warning_bits; + + return @result; +} + +1; |