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py/emitnative: Use assertions and mp_not_implemented correctly. 

Assertions are used to check expressions that should always be true,
and mp_not_implemented is used for code that can be reached.
This commit is contained in:
Damien George 2017-03-14 23:00:53 +11:00
parent 8a57cacd78
commit a5a84e1f85
1 changed files with 6 additions and 9 deletions
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15
py/emitnative.c
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@ -385,11 +385,9 @@ STATIC void emit_native_start_pass(emit_t *emit, pass_kind_t pass, scope_t *scop
ASM_MOV_REG_REG(emit->as, REG_LOCAL_2, REG_ARG_2);
} else if (i == 2) {
ASM_MOV_REG_REG(emit->as, REG_LOCAL_3, REG_ARG_3);
} else if (i == 3) {
ASM_MOV_REG_TO_LOCAL(emit->as, REG_ARG_4, i - REG_LOCAL_NUM);
} else {
// TODO not implemented
mp_not_implemented("more than 4 viper args");
assert(i == 3); // should be true; max 4 args is checked above
ASM_MOV_REG_TO_LOCAL(emit->as, REG_ARG_4, i - REG_LOCAL_NUM);
}
}
#endif
@ -527,9 +525,7 @@ STATIC void emit_native_end_pass(emit_t *emit) {
ASM_END_PASS(emit->as);
// check stack is back to zero size
if (emit->stack_size != 0) {
mp_printf(&mp_plat_print, "ERROR: stack size not back to zero; got %d\n", emit->stack_size);
}
assert(emit->stack_size == 0);
if (emit->pass == MP_PASS_EMIT) {
void *f = mp_asm_base_get_code(&emit->as->base);
@ -867,7 +863,7 @@ STATIC void emit_get_stack_pointer_to_reg_for_pop(emit_t *emit, mp_uint_t reg_de
break;
default:
// not handled
assert(0);
mp_not_implemented("conversion to object");
}
}
@ -2202,7 +2198,8 @@ STATIC void emit_native_call_function(emit_t *emit, mp_uint_t n_positional, mp_u
emit_post_top_set_vtype(emit, vtype_cast);
break;
default:
assert(!"TODO: convert obj to int");
// this can happen when casting a cast: int(int)
mp_not_implemented("casting");
}
} else {
assert(vtype_fun == VTYPE_PYOBJ);