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.. index:: flags .. _flags/0:
.. rst-class:: right
category
flags
Implementation of persistent object flags.
| Availability:
| logtalk_load(flags(loader))
| Author: Theofrastos Mantadelis | Version: 1:0:0 | Date: 2010-11-27
| Compilation flags:
| static
| Dependencies: | (none)
| Remarks: | (none)
| Inherited public predicates: | (none)
.. contents:: :local: :backlinks: top
Public predicates
.. index:: get_flag_value/2 .. _flags/0::get_flag_value/2:
get_flag_value/2 ^^^^^^^^^^^^^^^^^^^^
Gets or tests the value of a flag.
| Compilation flags:
| static
| Template:
| get_flag_value(Flag,Value)
| Mode and number of proofs:
| get_flag_value(+atom,?nonvar) - zero_or_one
.. index:: set_flag_value/2 .. _flags/0::set_flag_value/2:
set_flag_value/2 ^^^^^^^^^^^^^^^^^^^^
Sets the value of a flag.
| Compilation flags:
| static
| Template:
| set_flag_value(Flag,NewValue)
| Mode and number of proofs:
| set_flag_value(+atom,@nonvar) - one
.. index:: set_flag_value/3 .. _flags/0::set_flag_value/3:
set_flag_value/3 ^^^^^^^^^^^^^^^^^^^^
Sets the value of a flag, returning the old value.
| Compilation flags:
| static
| Template:
| set_flag_value(Flag,OldValue,NewValue)
| Mode and number of proofs:
| set_flag_value(+atom,?nonvar,@nonvar) - one
.. index:: reset_flags/0 .. _flags/0::reset_flags/0:
reset_flags/0 ^^^^^^^^^^^^^^^^^
Resets all flags to their default values.
| Compilation flags:
| static
| Mode and number of proofs:
| reset_flags - one
.. index:: reset_flags/1 .. _flags/0::reset_flags/1:
reset_flags/1 ^^^^^^^^^^^^^^^^^
Resets all flags in a group to their default values.
| Compilation flags:
| static
| Template:
| reset_flags(Group)
| Mode and number of proofs:
| reset_flags(+atom) - one
.. index:: flag_groups/1 .. _flags/0::flag_groups/1:
flag_groups/1 ^^^^^^^^^^^^^^^^^
Returns a list of all flag groups.
| Compilation flags:
| static
| Template:
| flag_groups(Groups)
| Mode and number of proofs:
| flag_groups(-list(atom)) - one
.. index:: flag_group_chk/1 .. _flags/0::flag_group_chk/1:
flag_group_chk/1 ^^^^^^^^^^^^^^^^^^^^
Checks if a given atom is a flag group.
| Compilation flags:
| static
| Template:
| flag_group_chk(Group)
| Mode and number of proofs:
| flag_group_chk(+atom) - zero_or_one
.. index:: print_flags/0 .. _flags/0::print_flags/0:
print_flags/0 ^^^^^^^^^^^^^^^^^
Prints a listing of all flags.
| Compilation flags:
| static
| Mode and number of proofs:
| print_flags - one
.. index:: print_flags/1 .. _flags/0::print_flags/1:
print_flags/1 ^^^^^^^^^^^^^^^^^
Prints a listing of all flags in a group.
| Compilation flags:
| static
| Template:
| print_flags(Group)
| Mode and number of proofs:
| print_flags(+atom) - one
.. index:: defined_flag/6 .. _flags/0::defined_flag/6:
defined_flag/6 ^^^^^^^^^^^^^^^^^^
Gets or test the existing (visible) flag definitions.
| Compilation flags:
| static
| Template:
| defined_flag(Flag,Group,Type,DefaultValue,Description,Access)
| Mode and number of proofs:
| defined_flag(?atom,?atom,?nonvar,?nonvar,?atom,?atom) - zero_or_more
.. index:: built_in_flag/2 .. _flags/0::built_in_flag/2:
built_in_flag/2 ^^^^^^^^^^^^^^^^^^^
True if the argument is a built-in flag type with the specified default value.
| Compilation flags:
| static
| Template:
| built_in_flag(Type,DefaultValue)
| Mode and number of proofs:
| built_in_flag(?atom,?nonvar) - zero_or_more
Protected predicates
.. index:: unsafe_set_flag_value/2 .. _flags/0::unsafe_set_flag_value/2:
unsafe_set_flag_value/2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sets the value of a flag without performing any validation checks.
| Compilation flags:
| static
| Template:
| unsafe_set_flag_value(Flag,NewValue)
| Mode and number of proofs:
| unsafe_set_flag_value(+atom,@nonvar) - one
.. index:: define_flag/1 .. _flags/0::define_flag/1:
define_flag/1 ^^^^^^^^^^^^^^^^^
Defines a new flag using default options.
| Compilation flags:
| static
| Template:
| define_flag(Flag)
| Mode and number of proofs:
| define_flag(+atom) - one
.. index:: define_flag/2 .. _flags/0::define_flag/2:
define_flag/2 ^^^^^^^^^^^^^^^^^
Defines a new flag using a given set of options (for example, [group(general), type(nonvar), default(true), description(Flag), access(read_write)]).
| Compilation flags:
| static
| Template:
| define_flag(Flag,Options)
| Mode and number of proofs:
| define_flag(+atom,@list) - one
Private predicates
.. index:: defined_flag_/6 .. _flags/0::defined_flag_/6:
defined_flag_/6
^^^^^^^^^^^^^^^^^^^
Gets or test the existing flag definitions.
| Compilation flags:
| dynamic
| Template:
| defined_flag_(Flag,Group,Type,DefaultValue,Description,Access)
| Mode and number of proofs:
| defined_flag_(?atom,?atom,?nonvar,?nonvar,?atom,?atom) - zero_or_more
.. index:: flag_value_/2 .. _flags/0::flag_value_/2:
flag_value_/2
^^^^^^^^^^^^^^^^^
Table of flag values.
| Compilation flags:
| dynamic
| Template:
| flag_value_(Flag,Value)
| Mode and number of proofs:
| flag_value_(?atom,?nonvar) - zero_or_more
.. index:: validate/3 .. _flags/0::validate/3:
validate/3 ^^^^^^^^^^^^^^
| Compilation flags:
| static
.. index:: validate_type/1 .. _flags/0::validate_type/1:
validate_type/1 ^^^^^^^^^^^^^^^^^^^
| Compilation flags:
| static
.. index:: is_validator/1 .. _flags/0::is_validator/1:
is_validator/1 ^^^^^^^^^^^^^^^^^^
| Compilation flags:
| static
Operators
(none)