6.14 Module properties
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Availability:built-in
Sourcemodule_property(?Module, ?Property)
True if Property is a property of Module. Defined properties are:
class(-Class)
True when Class is the class of the module. Defined classes are
user
Default for user-defined modules.
system
Module system and modules from <home>/boot.
library
Other modules from the system directories.
temporary
Module is temporary.
test
Modules that create tests.
development
Modules that only support the development environment.
file(?File)
True if Module was loaded from File.
line_count(-Line)
True if Module was loaded from the N-th line of file.
exports(-ListOfPredicateIndicators)
True if Module exports the given predicates. Predicate indicators are in canonical form (i.e., always using name/arity and never the DCG form name//arity). Future versions may also use the DCG form and include public operators. See also predicate_property/2.
exported_operators(-ListOfOperators)
True if Module exports the given operators. Each exported operator is represented as a term op(Pri,Assoc,Name).
program_size(-Bytes)
Memory (in bytes) used for storing the predicates of this module. This figure includes the predicate header and clauses. Future versions might give a more precise number, including e.g., the clause index tables.
program_space(-Bytes)
If present, this number limits the program_size. See set_module/1.
last_modified_generation(-Generation)
Integer expression the last database generation where a clause was added or removed from a predicate that is implemented in this module. See also predicate_property/2.