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Implement __bool__ and __len__ via unary_op virtual method for all types.

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__bool__() and __len__() are just the same as __neg__() or __invert__(),
and require efficient dispatching implementation (not requiring search/lookup).
type->unary_op() is just the right choice for this short of adding
standalone virtual method(s) to already big mp_obj_type_t structure.
This commit is contained in:
Paul Sokolovsky
2014-01-30 04:37:19 +02:00
parent cdd2c62e07
commit c1d9bbc345
13 changed files with 52 additions and 16 deletions
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py/objbool.c
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@@ -36,7 +36,7 @@ static mp_obj_t bool_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp
static mp_obj_t bool_unary_op(int op, mp_obj_t o_in) {
machine_int_t value = ((mp_obj_bool_t*)o_in)->value;
switch (op) {
case RT_UNARY_OP_NOT: if (value) { return mp_const_false; } else { return mp_const_true; }
case RT_UNARY_OP_BOOL: return o_in;
case RT_UNARY_OP_POSITIVE: return MP_OBJ_NEW_SMALL_INT(value);
case RT_UNARY_OP_NEGATIVE: return MP_OBJ_NEW_SMALL_INT(-value);
case RT_UNARY_OP_INVERT: