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py: reduce use of emit_verbatim calls to minimum.

This commit is contained in:
Damien 2013-12-12 15:13:36 +00:00
parent 9ecbcfff99
commit 02f8941bf6
1 changed files with 80 additions and 32 deletions
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112
py/compile.c
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@ -282,21 +282,61 @@ static bool cpython_c_tuple_is_const(py_parse_node_t pn) {
return true;
}
static void cpython_c_tuple_emit_const(compiler_t *comp, py_parse_node_t pn) {
static void cpython_c_print_quoted_str(vstr_t *vstr, qstr qstr, bool bytes) {
const char *str = qstr_str(qstr);
int len = strlen(str);
bool has_single_quote = false;
bool has_double_quote = false;
for (int i = 0; i < len; i++) {
if (str[i] == '\'') {
has_single_quote = true;
} else if (str[i] == '"') {
has_double_quote = true;
}
}
if (bytes) {
vstr_printf(vstr, "b");
}
bool quote_single = false;
if (has_single_quote && !has_double_quote) {
vstr_printf(vstr, "\"");
} else {
quote_single = true;
vstr_printf(vstr, "'");
}
for (int i = 0; i < len; i++) {
if (str[i] == '\n') {
vstr_printf(vstr, "\\n");
} else if (str[i] == '\\') {
vstr_printf(vstr, "\\\\");
} else if (str[i] == '\'' && quote_single) {
vstr_printf(vstr, "\\'");
} else {
vstr_printf(vstr, "%c", str[i]);
}
}
if (has_single_quote && !has_double_quote) {
vstr_printf(vstr, "\"");
} else {
vstr_printf(vstr, "'");
}
}
static void cpython_c_tuple_emit_const(compiler_t *comp, py_parse_node_t pn, vstr_t *vstr) {
assert(PY_PARSE_NODE_IS_LEAF(pn));
int arg = PY_PARSE_NODE_LEAF_ARG(pn);
switch (PY_PARSE_NODE_LEAF_KIND(pn)) {
case PY_PARSE_NODE_ID: assert(0);
case PY_PARSE_NODE_SMALL_INT: EMIT(load_const_verbatim_int, arg); break;
case PY_PARSE_NODE_INTEGER: EMIT(load_const_verbatim_str, qstr_str(arg)); break;
case PY_PARSE_NODE_DECIMAL: EMIT(load_const_verbatim_str, qstr_str(arg)); break;
case PY_PARSE_NODE_STRING: EMIT(load_const_verbatim_quoted_str, arg, false); break;
case PY_PARSE_NODE_BYTES: EMIT(load_const_verbatim_quoted_str, arg, true); break;
case PY_PARSE_NODE_SMALL_INT: vstr_printf(vstr, "%d", arg); break;
case PY_PARSE_NODE_INTEGER: vstr_printf(vstr, "%s", qstr_str(arg)); break;
case PY_PARSE_NODE_DECIMAL: vstr_printf(vstr, "%s", qstr_str(arg)); break;
case PY_PARSE_NODE_STRING: cpython_c_print_quoted_str(vstr, arg, false); break;
case PY_PARSE_NODE_BYTES: cpython_c_print_quoted_str(vstr, arg, true); break;
case PY_PARSE_NODE_TOKEN:
switch (arg) {
case PY_TOKEN_KW_FALSE: EMIT(load_const_verbatim_str, "False"); break;
case PY_TOKEN_KW_NONE: EMIT(load_const_verbatim_str, "None"); break;
case PY_TOKEN_KW_TRUE: EMIT(load_const_verbatim_str, "True"); break;
case PY_TOKEN_KW_FALSE: vstr_printf(vstr, "False"); break;
case PY_TOKEN_KW_NONE: vstr_printf(vstr, "None"); break;
case PY_TOKEN_KW_TRUE: vstr_printf(vstr, "True"); break;
default: assert(0);
}
break;
@ -325,25 +365,28 @@ static void cpython_c_tuple(compiler_t *comp, py_parse_node_t pn, py_parse_node_
}
if (total > 0 && is_const) {
bool need_comma = false;
EMIT(load_const_verbatim_start);
EMIT(load_const_verbatim_str, "(");
vstr_t *vstr = vstr_new();
vstr_printf(vstr, "(");
if (!PY_PARSE_NODE_IS_NULL(pn)) {
cpython_c_tuple_emit_const(comp, pn);
cpython_c_tuple_emit_const(comp, pn, vstr);
need_comma = true;
}
for (int i = 0; i < n; i++) {
if (need_comma) {
EMIT(load_const_verbatim_str, ", ");
vstr_printf(vstr, ", ");
}
cpython_c_tuple_emit_const(comp, pns_list->nodes[i]);
cpython_c_tuple_emit_const(comp, pns_list->nodes[i], vstr);
need_comma = true;
}
if (total == 1) {
EMIT(load_const_verbatim_str, ",)");
vstr_printf(vstr, ",)");
} else {
EMIT(load_const_verbatim_str, ")");
vstr_printf(vstr, ")");
}
EMIT(load_const_verbatim_start);
EMIT(load_const_verbatim_str, vstr_str(vstr));
EMIT(load_const_verbatim_end);
vstr_free(vstr);
} else {
if (!PY_PARSE_NODE_IS_NULL(pn)) {
compile_node(comp, pn);
@ -1198,24 +1241,29 @@ void compile_import_from(compiler_t *comp, py_parse_node_struct_t *pns) {
py_parse_node_t *pn_nodes;
int n = list_get(&pns->nodes[1], PN_import_as_names, &pn_nodes);
#if MICROPY_EMIT_CPYTHON
EMIT(load_const_verbatim_start);
EMIT(load_const_verbatim_str, "(");
for (int i = 0; i < n; i++) {
assert(PY_PARSE_NODE_IS_STRUCT_KIND(pn_nodes[i], PN_import_as_name));
py_parse_node_struct_t *pns3 = (py_parse_node_struct_t*)pn_nodes[i];
qstr id2 = PY_PARSE_NODE_LEAF_ARG(pns3->nodes[0]); // should be id
if (i > 0) {
EMIT(load_const_verbatim_str, ", ");
{
vstr_t *vstr = vstr_new();
vstr_printf(vstr, "(");
for (int i = 0; i < n; i++) {
assert(PY_PARSE_NODE_IS_STRUCT_KIND(pn_nodes[i], PN_import_as_name));
py_parse_node_struct_t *pns3 = (py_parse_node_struct_t*)pn_nodes[i];
qstr id2 = PY_PARSE_NODE_LEAF_ARG(pns3->nodes[0]); // should be id
if (i > 0) {
vstr_printf(vstr, ", ");
}
vstr_printf(vstr, "'");
vstr_printf(vstr, qstr_str(id2));
vstr_printf(vstr, "'");
}
EMIT(load_const_verbatim_str, "'");
EMIT(load_const_verbatim_str, qstr_str(id2));
EMIT(load_const_verbatim_str, "'");
if (n == 1) {
vstr_printf(vstr, ",");
}
vstr_printf(vstr, ")");
EMIT(load_const_verbatim_start);
EMIT(load_const_verbatim_str, vstr_str(vstr));
EMIT(load_const_verbatim_end);
vstr_free(vstr);
}
if (n == 1) {
EMIT(load_const_verbatim_str, ",");
}
EMIT(load_const_verbatim_str, ")");
EMIT(load_const_verbatim_end);
#else
for (int i = 0; i < n; i++) {
assert(PY_PARSE_NODE_IS_STRUCT_KIND(pn_nodes[i], PN_import_as_name));