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py: restrict further when for-range optimisation is done.

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This commit is contained in:
Damien 2013-11-28 19:12:18 +00:00
parent 86c7fc7dd9
commit d79338969b
1 changed files with 4 additions and 2 deletions
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6
py/compile.c
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@ -48,6 +48,7 @@ typedef struct _compiler_t {
qstr qstr_native;
qstr qstr_viper;
qstr qstr_asm_thumb;
qstr qstr_range;
bool is_repl;
pass_kind_t pass;
@ -1409,9 +1410,9 @@ void compile_for_stmt(compiler_t *comp, py_parse_node_struct_t *pns) {
// this bit optimises: for <x> in range(...), turning it into an explicitly incremented variable
// this is actually slower, but uses no heap memory
// for viper it will be much, much faster
if (/*comp->scope_cur->emit_options == EMIT_OPT_VIPER &&*/ PY_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[1], PN_power)) {
if (/*comp->scope_cur->emit_options == EMIT_OPT_VIPER &&*/ PY_PARSE_NODE_IS_ID(pns->nodes[0]) && PY_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[1], PN_power)) {
py_parse_node_struct_t *pns_it = (py_parse_node_struct_t*)pns->nodes[1];
if (PY_PARSE_NODE_IS_ID(pns_it->nodes[0]) && PY_PARSE_NODE_IS_STRUCT_KIND(pns_it->nodes[1], PN_trailer_paren) && PY_PARSE_NODE_IS_NULL(pns_it->nodes[2])) {
if (PY_PARSE_NODE_IS_ID(pns_it->nodes[0]) && PY_PARSE_NODE_LEAF_ARG(pns_it->nodes[0]) == comp->qstr_range && PY_PARSE_NODE_IS_STRUCT_KIND(pns_it->nodes[1], PN_trailer_paren) && PY_PARSE_NODE_IS_NULL(pns_it->nodes[2])) {
py_parse_node_t pn_range_args = ((py_parse_node_struct_t*)pns_it->nodes[1])->nodes[0];
py_parse_node_t *args;
int n_args = list_get(&pn_range_args, PN_arglist, &args);
@ -2853,6 +2854,7 @@ bool py_compile(py_parse_node_t pn, bool is_repl) {
comp->qstr_native = qstr_from_str_static("native");
comp->qstr_viper = qstr_from_str_static("viper");
comp->qstr_asm_thumb = qstr_from_str_static("asm_thumb");
comp->qstr_range = qstr_from_str_static("range");
comp->is_repl = is_repl;
comp->had_error = false;