NAME
Logic::Relational::Variable - Represents a logical variable in the logic engine.
SYNOPSIS
use Logic::Relational::Variable;
my $var = Logic::Relational::Variable->new(name => 'X');
say $var->id; # unique integer ID
say $var->name; # XDESCRIPTION
Logic::Relational::Variable represents a logical variable. Each variable has a unique internal ID to distinguish it from other variables, even if they share the same display name.
METHODS
new
Constructor. Takes name (optional) and id (optional). If id is omitted, a unique integer ID is allocated from a global counter.
id
Returns the unique integer ID.
name
Returns the display name of the variable.
as_string
Returns a string representation of the variable, formatting it with its name and ID.
freshen
Takes a variable mapping hash reference. If this variable's ID is not present in the mapping, a new variable with the same name and a fresh ID is created and stored in the mapping. Returns the mapped variable.