diff options
Diffstat (limited to 'Python/compile.c')
| -rw-r--r-- | Python/compile.c | 85 |
1 files changed, 49 insertions, 36 deletions
diff --git a/Python/compile.c b/Python/compile.c index 453aae3..6d330cf 100644 --- a/Python/compile.c +++ b/Python/compile.c @@ -301,7 +301,9 @@ PyCode_New(argcount, nlocals, stacksize, flags, struct compiling { PyObject *c_code; /* string */ PyObject *c_consts; /* list of objects */ + PyObject *c_const_dict; /* inverse of c_consts */ PyObject *c_names; /* list of strings (names) */ + PyObject *c_name_dict; /* inverse of c_names */ PyObject *c_globals; /* dictionary (value=None) */ PyObject *c_locals; /* dictionary (value=localID) */ PyObject *c_varnames; /* list (inverse of c_locals) */ @@ -403,7 +405,7 @@ static void com_addint Py_PROTO((struct compiling *, int)); static void com_addoparg Py_PROTO((struct compiling *, int, int)); static void com_addfwref Py_PROTO((struct compiling *, int, int *)); static void com_backpatch Py_PROTO((struct compiling *, int)); -static int com_add Py_PROTO((struct compiling *, PyObject *, PyObject *)); +static int com_add Py_PROTO((struct compiling *, PyObject *, PyObject *, PyObject *)); static int com_addconst Py_PROTO((struct compiling *, PyObject *)); static int com_addname Py_PROTO((struct compiling *, PyObject *)); static void com_addopname Py_PROTO((struct compiling *, int, node *)); @@ -421,22 +423,27 @@ com_init(c, filename) struct compiling *c; char *filename; { + memset((void *)c, '\0', sizeof(struct compiling)); if ((c->c_code = PyString_FromStringAndSize((char *)NULL, 1000)) == NULL) - goto fail_3; + goto fail; if ((c->c_consts = PyList_New(0)) == NULL) - goto fail_2; + goto fail; + if ((c->c_const_dict = PyDict_New()) == NULL) + goto fail; if ((c->c_names = PyList_New(0)) == NULL) - goto fail_1; + goto fail; + if ((c->c_name_dict = PyDict_New()) == NULL) + goto fail; if ((c->c_globals = PyDict_New()) == NULL) - goto fail_0; + goto fail; if ((c->c_locals = PyDict_New()) == NULL) - goto fail_00; + goto fail; if ((c->c_varnames = PyList_New(0)) == NULL) - goto fail_000; + goto fail; if ((c->c_lnotab = PyString_FromStringAndSize((char *)NULL, 1000)) == NULL) - goto fail_0000; + goto fail; c->c_nlocals = 0; c->c_argcount = 0; c->c_flags = 0; @@ -458,19 +465,8 @@ com_init(c, filename) c-> c_lnotab_next = 0; return 1; - fail_0000: - Py_DECREF(c->c_varnames); - fail_000: - Py_DECREF(c->c_locals); - fail_00: - Py_DECREF(c->c_globals); - fail_0: - Py_DECREF(c->c_names); - fail_1: - Py_DECREF(c->c_consts); - fail_2: - Py_DECREF(c->c_code); - fail_3: + fail: + com_free(c); return 0; } @@ -480,7 +476,9 @@ com_free(c) { Py_XDECREF(c->c_code); Py_XDECREF(c->c_consts); + Py_XDECREF(c->c_const_dict); Py_XDECREF(c->c_names); + Py_XDECREF(c->c_name_dict); Py_XDECREF(c->c_globals); Py_XDECREF(c->c_locals); Py_XDECREF(c->c_varnames); @@ -665,24 +663,39 @@ com_backpatch(c, anchor) /* Handle literals and names uniformly */ static int -com_add(c, list, v) +com_add(c, list, dict, v) struct compiling *c; PyObject *list; + PyObject *dict; PyObject *v; { - int n = PyList_Size(list); - int i; - /* XXX This is quadratic in the number of names per compilation unit. - XXX Should use a dictionary. */ - for (i = n; --i >= 0; ) { - PyObject *w = PyList_GetItem(list, i); - if (v->ob_type == w->ob_type && PyObject_Compare(v, w) == 0) - return i; - } - /* Check for error from PyObject_Compare */ - if (PyErr_Occurred() || PyList_Append(list, v) != 0) - c->c_errors++; + PyObject *w, *t, *np=NULL; + long n; + + t = Py_BuildValue("(OO)", v, v->ob_type); + if (t == NULL) + goto fail; + w = PyDict_GetItem(dict, t); + if (w != NULL) { + n = PyInt_AsLong(w); + } else { + n = PyList_Size(list); + np = PyInt_FromLong(n); + if (np == NULL) + goto fail; + if (PyList_Append(list, v) != 0) + goto fail; + if (PyDict_SetItem(dict, t, np) != 0) + goto fail; + Py_DECREF(np); + } + Py_DECREF(t); return n; + fail: + Py_XDECREF(np); + Py_XDECREF(t); + c->c_errors++; + return 0; } static int @@ -690,7 +703,7 @@ com_addconst(c, v) struct compiling *c; PyObject *v; { - return com_add(c, c->c_consts, v); + return com_add(c, c->c_consts, c->c_const_dict, v); } static int @@ -698,7 +711,7 @@ com_addname(c, v) struct compiling *c; PyObject *v; { - return com_add(c, c->c_names, v); + return com_add(c, c->c_names, c->c_name_dict, v); } #ifdef PRIVATE_NAME_MANGLING |