method
to_h
v2_5_5 -
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- Class:
Array
to_h()public
Returns the result of interpreting ary as an array of [key, value] pairs.
[[:foo, :bar], [1, 2]].to_h # => {:foo => :bar, 1 => 2}
static VALUE
rb_ary_to_h(VALUE ary)
{
long i;
VALUE hash = rb_hash_new_with_size(RARRAY_LEN(ary));
for (i=0; i<RARRAY_LEN(ary); i++) {
const VALUE elt = rb_ary_elt(ary, i);
const VALUE key_value_pair = rb_check_array_type(elt);
if (NIL_P(key_value_pair)) {
rb_raise(rb_eTypeError, "wrong element type %"PRIsVALUE" at %ld (expected array)",
rb_obj_class(elt), i);
}
if (RARRAY_LEN(key_value_pair) != 2) {
rb_raise(rb_eArgError, "wrong array length at %ld (expected 2, was %ld)",
i, RARRAY_LEN(key_value_pair));
}
rb_hash_aset(hash, RARRAY_AREF(key_value_pair, 0), RARRAY_AREF(key_value_pair, 1));
}
return hash;
}