# Class attributes
-my %SIGIL_MAP = (
- '$' => 'SCALAR',
- '@' => 'ARRAY',
- '%' => 'HASH',
- '&' => 'CODE',
-);
+{
+ my %SIGIL_MAP = (
+ '$' => 'SCALAR',
+ '@' => 'ARRAY',
+ '%' => 'HASH',
+ '&' => 'CODE',
+ );
-sub add_package_symbol {
- my ($self, $variable, $initial_value) = @_;
+ sub add_package_symbol {
+ my ($self, $variable, $initial_value) = @_;
- (defined $variable)
- || confess "You must pass a variable name";
+ (defined $variable)
+ || confess "You must pass a variable name";
- my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
+ my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
- (defined $sigil)
- || confess "The variable name must include a sigil";
+ (defined $sigil)
+ || confess "The variable name must include a sigil";
- (exists $SIGIL_MAP{$sigil})
- || confess "I do not recognize that sigil '$sigil'";
+ (exists $SIGIL_MAP{$sigil})
+ || confess "I do not recognize that sigil '$sigil'";
- no strict 'refs';
- no warnings 'misc';
- *{$self->name . '::' . $name} = $initial_value;
-}
+ no strict 'refs';
+ no warnings 'misc';
+ *{$self->name . '::' . $name} = $initial_value;
+ }
-sub has_package_symbol {
- my ($self, $variable) = @_;
- (defined $variable)
- || confess "You must pass a variable name";
+ sub has_package_symbol {
+ my ($self, $variable) = @_;
+ (defined $variable)
+ || confess "You must pass a variable name";
- my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
+ my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
- (defined $sigil)
- || confess "The variable name must include a sigil";
+ (defined $sigil)
+ || confess "The variable name must include a sigil";
- (exists $SIGIL_MAP{$sigil})
- || confess "I do not recognize that sigil '$sigil'";
+ (exists $SIGIL_MAP{$sigil})
+ || confess "I do not recognize that sigil '$sigil'";
- no strict 'refs';
- defined *{$self->name . '::' . $name}{$SIGIL_MAP{$sigil}} ? 1 : 0;
+ no strict 'refs';
+ defined *{$self->name . '::' . $name}{$SIGIL_MAP{$sigil}} ? 1 : 0;
-}
+ }
-sub get_package_symbol {
- my ($self, $variable) = @_;
- (defined $variable)
- || confess "You must pass a variable name";
+ sub get_package_symbol {
+ my ($self, $variable) = @_;
+ (defined $variable)
+ || confess "You must pass a variable name";
- my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
+ my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
- (defined $sigil)
- || confess "The variable name must include a sigil";
+ (defined $sigil)
+ || confess "The variable name must include a sigil";
- (exists $SIGIL_MAP{$sigil})
- || confess "I do not recognize that sigil '$sigil'";
+ (exists $SIGIL_MAP{$sigil})
+ || confess "I do not recognize that sigil '$sigil'";
- no strict 'refs';
- return *{$self->name . '::' . $name}{$SIGIL_MAP{$sigil}};
+ no strict 'refs';
+ return *{$self->name . '::' . $name}{$SIGIL_MAP{$sigil}};
-}
+ }
-sub remove_package_symbol {
- my ($self, $variable) = @_;
+ sub remove_package_symbol {
+ my ($self, $variable) = @_;
- (defined $variable)
- || confess "You must pass a variable name";
+ (defined $variable)
+ || confess "You must pass a variable name";
- my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
-
- (defined $sigil)
- || confess "The variable name must include a sigil";
-
- (exists $SIGIL_MAP{$sigil})
- || confess "I do not recognize that sigil '$sigil'";
-
- no strict 'refs';
- if ($SIGIL_MAP{$sigil} eq 'SCALAR') {
- undef ${$self->name . '::' . $name};
- }
- elsif ($SIGIL_MAP{$sigil} eq 'ARRAY') {
- undef @{$self->name . '::' . $name};
- }
- elsif ($SIGIL_MAP{$sigil} eq 'HASH') {
- undef %{$self->name . '::' . $name};
- }
- elsif ($SIGIL_MAP{$sigil} eq 'CODE') {
- undef &{$self->name . '::' . $name};
- }
- else {
- confess "This should never ever ever happen";
+ my ($sigil, $name) = ($variable =~ /^(.)(.*)$/);
+
+ (defined $sigil)
+ || confess "The variable name must include a sigil";
+
+ (exists $SIGIL_MAP{$sigil})
+ || confess "I do not recognize that sigil '$sigil'";
+
+ no strict 'refs';
+ if ($SIGIL_MAP{$sigil} eq 'SCALAR') {
+ undef ${$self->name . '::' . $name};
+ }
+ elsif ($SIGIL_MAP{$sigil} eq 'ARRAY') {
+ undef @{$self->name . '::' . $name};
+ }
+ elsif ($SIGIL_MAP{$sigil} eq 'HASH') {
+ undef %{$self->name . '::' . $name};
+ }
+ elsif ($SIGIL_MAP{$sigil} eq 'CODE') {
+ undef &{$self->name . '::' . $name};
+ }
+ else {
+ confess "This should never ever ever happen";
+ }
}
+
}
1;