method
each_pair
ruby latest stable - Class:
Struct
each_pair()public
Yields the name and value of each struct member in order. If no block is given an enumerator is returned.
Customer = Struct .new (:name, :address, :zip) joe = Customer.new ("Joe Smith", "123 Maple, Anytown NC", 12345) joe.each_pair {|name, value| puts("#{name} => #{value}") }
Produces:
name => Joe Smith address => 123 Maple, Anytown NC zip => 12345
static VALUE
rb_struct_each_pair(VALUE s)
{
VALUE members;
long i;
RETURN_SIZED_ENUMERATOR(s, 0, 0, struct_enum_size);
members = rb_struct_members(s);
if (rb_block_arity() > 1) {
for (i=0; i<RSTRUCT_LEN(s); i++) {
VALUE key = rb_ary_entry(members, i);
VALUE value = RSTRUCT_GET(s, i);
rb_yield_values(2, key, value);
}
}
else {
for (i=0; i<RSTRUCT_LEN(s); i++) {
VALUE key = rb_ary_entry(members, i);
VALUE value = RSTRUCT_GET(s, i);
rb_yield(rb_assoc_new(key, value));
}
}
return s;
}