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12.2 Base exceptional–condition objects

All the exceptional–condition objects must be subclasses of mbfl_exceptional_condition. We can subclass it as follows: 

mbfl_default_class_declare(my_something_happened_t)

mbfl_default_class_define _(my_something_happened_t) \
    _(mbfl_exceptional_condition_t) 'my_something_happened'

function my_something_happened_make () {
    mbfl_mandatory_nameref_parameter(CND, 1, exceptional-condition object)
    mbfl_mandatory_parameter(WHO,         2, entity reporting the exceptional-condition)
    mbfl_mandatory_parameter(MESSAGE,     3, exceptional-condition description message)
    declare CONTINUABLE='true'

    my_something_happened_define _(CND) "$WHO" "$MESSAGE" "$CONTINUABLE"
}

and we can use the subclass as follows: 

mbfl_default_object_declare(CND)

my_something_happened_make _(CND) 'someone' 'something happened'
mbfl_exception_raise _(CND)
• conditions base class:  Class definition of mbfl_exceptional_condition.
• conditions base attributes:  Attributes of mbfl_exceptional_condition.
• conditions base methods:  Class methods of mbfl_exceptional_condition.

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This document describes version 3.0.0-devel.9 of Marcos Bash Functions Library.