End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Module#attr_reader
attr_reader(symbol, ...) → array
attr(symbol, ...) → array
attr_reader(string, ...) → array
attr(string, ...) → array
object.c
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static VALUE
rb_mod_attr_reader(int argc, VALUE *argv, VALUE klass)
{
int i;
VALUE names = rb_ary_new2(argc);
for (i=0; i<argc; i++) {
ID id = id_for_attr(klass, argv[i]);
rb_attr(klass, id, TRUE, FALSE, TRUE);
rb_ary_push(names, ID2SYM(id));
}
return names;
}
Creates instance variables and corresponding methods that return the value of each instance variable. Equivalent to calling “attr:name” on each name in turn. String arguments are converted to symbols. Returns an array of defined method names as symbols.
Ruby version changes
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3.0
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Module#attr_accessor,Module#attr_reader,Module#attr_writerandModule#attrmethods now return an array of defined method names as symbols. [Feature #17314]
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