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Add len and subscr (a hack) support for strings.

This commit is contained in:
Damien 2013-11-09 20:13:55 +00:00
parent 94658e2e25
commit 6b92d451b2
1 changed files with 13 additions and 8 deletions
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21
py/runtime.c
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@ -15,11 +15,6 @@
#include "runtime.h"
#include "bc.h"
#if MICROPY_ENABLE_FLOAT
// for sqrt
#include <math.h>
#endif
#if 0 // print debugging info
#define DEBUG_PRINT (1)
#define WRITE_NATIVE (1)
@ -873,7 +868,10 @@ py_obj_t py_builtin_print(int n_args, const py_obj_t* args) {
py_obj_t py_builtin_len(py_obj_t o_in) {
py_small_int_t len = 0;
if (IS_O(o_in, O_TUPLE) || IS_O(o_in, O_LIST)) {
if (IS_O(o_in, O_STR)) {
py_obj_base_t *o = o_in;
len = strlen(qstr_str(o->u_str));
} else if (IS_O(o_in, O_TUPLE) || IS_O(o_in, O_LIST)) {
py_obj_base_t *o = o_in;
len = o->u_tuple_list.len;
} else if (IS_O(o_in, O_MAP)) {
@ -892,6 +890,7 @@ py_obj_t py_builtin_abs(py_obj_t o_in) {
val = -val;
}
return TO_SMALL_INT(val);
#if MICROPY_ENABLE_FLOAT
} else if (IS_O(o_in, O_FLOAT)) {
py_obj_base_t *o = o_in;
// TODO check for NaN etc
@ -902,7 +901,8 @@ py_obj_t py_builtin_abs(py_obj_t o_in) {
}
} else if (IS_O(o_in, O_COMPLEX)) {
py_obj_base_t *o = o_in;
return py_obj_new_float(sqrt(o->u_complex.real*o->u_complex.real + o->u_complex.imag*o->u_complex.imag));
return py_obj_new_float(machine_sqrt(o->u_complex.real*o->u_complex.real + o->u_complex.imag*o->u_complex.imag));
#endif
} else {
assert(0);
return py_const_none;
@ -1279,7 +1279,12 @@ uint get_index(py_obj_base_t *base, py_obj_t index) {
py_obj_t rt_binary_op(int op, py_obj_t lhs, py_obj_t rhs) {
DEBUG_OP_printf("binary %d %p %p\n", op, lhs, rhs);
if (op == RT_BINARY_OP_SUBSCR) {
if ((IS_O(lhs, O_TUPLE) || IS_O(lhs, O_LIST))) {
if (IS_O(lhs, O_STR)) {
// string access
// XXX a hack!
const char *str = qstr_str(((py_obj_base_t*)lhs)->u_str);
return py_obj_new_int(str[FROM_SMALL_INT(rhs)]);
} else if ((IS_O(lhs, O_TUPLE) || IS_O(lhs, O_LIST))) {
// tuple/list load
uint index = get_index(lhs, rhs);
return ((py_obj_base_t*)lhs)->u_tuple_list.items[index];