static int
sort_compare_strings(const void *a, const void *b, void *arg)
{
jsval av = *(const jsval *)a, bv = *(const jsval *)b;
return (int) js_CompareStrings(JSVAL_TO_STRING(av), JSVAL_TO_STRING(bv));
}
js_compare_atom_keys(const void *k1, const void *k2)
{
jsval v1, v2;
v1 = (jsval)k1, v2 = (jsval)k2;
if (JSVAL_IS_STRING(v1) && JSVAL_IS_STRING(v2))
return !js_CompareStrings(JSVAL_TO_STRING(v1), JSVAL_TO_STRING(v2));
if (JSVAL_IS_DOUBLE(v1) && JSVAL_IS_DOUBLE(v2))
return *JSVAL_TO_DOUBLE(v1) == *JSVAL_TO_DOUBLE(v2);
return v1 == v2;
}
static int
sort_compare(const void *a, const void *b, void *arg)
{
jsval av = *(const jsval *)a, bv = *(const jsval *)b;
CompareArgs *ca = (CompareArgs *) arg;
JSContext *cx = ca->context;
jsdouble cmp = -1;
jsval fval, argv[2], rval;
JSBool ok;
fval = ca->fval;
if (fval == JSVAL_NULL) {
JSString *astr, *bstr;
if (av == bv) {
cmp = 0;
} else if (av == JSVAL_VOID || bv == JSVAL_VOID) {
/* Put undefined properties at the end. */
cmp = (av == JSVAL_VOID) ? 1 : -1;
} else if ((astr = js_ValueToString(cx, av)) != NULL &&
(bstr = js_ValueToString(cx, bv)) != NULL) {
cmp = js_CompareStrings(astr, bstr);
} else {
ca->status = JS_FALSE;
}
} else {
argv[0] = av;
argv[1] = bv;
ok = js_InternalCall(cx,
OBJ_GET_PARENT(cx, JSVAL_TO_OBJECT(fval)),
fval, 2, argv, &rval);
if (ok) {
ok = js_ValueToNumber(cx, rval, &cmp);
/* Clamp cmp to -1, 0, 1. */
if (JSDOUBLE_IS_NaN(cmp)) {
/* XXX report some kind of error here? ECMA talks about
* 'consistent compare functions' that don't return NaN, but is
* silent about what the result should be. So we currently
* ignore it.
*/
cmp = 0;
} else if (cmp != 0) {
cmp = cmp > 0 ? 1 : -1;
}
} else {
ca->status = ok;
}
}
return (int)cmp;
}
js_compare_atom_keys(const void *k1, const void *k2)
{
jsval v1, v2;
v1 = (jsval)k1, v2 = (jsval)k2;
if (JSVAL_IS_STRING(v1) && JSVAL_IS_STRING(v2))
return !js_CompareStrings(JSVAL_TO_STRING(v1), JSVAL_TO_STRING(v2));
if (JSVAL_IS_DOUBLE(v1) && JSVAL_IS_DOUBLE(v2)) {
double d1 = *JSVAL_TO_DOUBLE(v1);
double d2 = *JSVAL_TO_DOUBLE(v2);
if (JSDOUBLE_IS_NaN(d1))
return JSDOUBLE_IS_NaN(d2);
#ifdef XP_PC
/* XXX MSVC miscompiles such that (NaN == 0) */
if (JSDOUBLE_IS_NaN(d2))
return JS_FALSE;
#endif
return d1 == d2;
}
return v1 == v2;
}
