ES2 MUD LIB :: 東方故事二(ES2) 天朝帝國 mudlib 瀏覽展示
/doc/efuns/bind
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bind() - change the owner of a function pointer
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function bind(function f, object ob)
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Returns a function pointer that is exactly the same as f,
but belongs to the object 'ob' instead of the object that
created f. Useful if the creator of 'f' has been
destructed, or f is an efun pointer to an efun which does
something to 'this_object'.
For example:
void make_living(object ob) {
function f;
f = bind( (: enable_commands :), ob );
evaluate(f); }
The effect of the above is the same as if 'ob' itself had
evaluated the enable_commands() efun. Note that there are
security risks involved in this, as bind() allows you to
force another object to run a piece of code. To protect
against this, there is a valid_bind() master apply which
must return 1 or the call to bind() will fail.
Page 1 (printed 3/16/95)