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compile: Don't try to constant-fold division by zero. 

The way it is, just crashes app. And optimizing to
"raise ZeroDivisionError" is probably too much.
This commit is contained in:
Paul Sokolovsky 2014-03-31 02:16:25 +03:00
parent 864038dab7
commit 96eec4f8a6
1 changed files with 3 additions and 1 deletions
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py/compile.c
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@ -145,7 +145,9 @@ mp_parse_node_t fold_constants(mp_parse_node_t pn) {
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_PERCENT)) { } else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_PERCENT)) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, python_modulo(arg0, arg1)); pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, python_modulo(arg0, arg1));
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_SLASH)) { } else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_SLASH)) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, python_floor_divide(arg0, arg1)); if (arg1 != 0) {
pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, python_floor_divide(arg0, arg1));
}
} else { } else {
// shouldn't happen // shouldn't happen
assert(0); assert(0);