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Patch #1550786: ellipsis literal.
This commit is contained in:
Georg Brandl
parent
7cae87ca7b
commit
52318d6215
19 changed files with 140 additions and 141 deletions
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@ -212,6 +212,7 @@ static PyTypeObject *Str_type;
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static char *Str_fields[]={
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"s",
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};
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static PyTypeObject *Ellipsis_type;
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static PyTypeObject *Attribute_type;
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static char *Attribute_fields[]={
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"value",
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@ -251,7 +252,6 @@ static PyTypeObject *AugStore_type;
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static PyTypeObject *Param_type;
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static PyTypeObject *slice_type;
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static PyObject* ast2obj_slice(void*);
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static PyTypeObject *Ellipsis_type;
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static PyTypeObject *Slice_type;
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static char *Slice_fields[]={
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"lower",
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@ -530,6 +530,8 @@ static int init_types(void)
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if (!Num_type) return 0;
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Str_type = make_type("Str", expr_type, Str_fields, 1);
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if (!Str_type) return 0;
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Ellipsis_type = make_type("Ellipsis", expr_type, NULL, 0);
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if (!Ellipsis_type) return 0;
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Attribute_type = make_type("Attribute", expr_type, Attribute_fields, 3);
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if (!Attribute_type) return 0;
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Subscript_type = make_type("Subscript", expr_type, Subscript_fields, 3);
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@ -570,8 +572,6 @@ static int init_types(void)
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slice_type = make_type("slice", AST_type, NULL, 0);
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if (!slice_type) return 0;
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if (!add_attributes(slice_type, NULL, 0)) return 0;
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Ellipsis_type = make_type("Ellipsis", slice_type, NULL, 0);
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if (!Ellipsis_type) return 0;
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Slice_type = make_type("Slice", slice_type, Slice_fields, 3);
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if (!Slice_type) return 0;
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ExtSlice_type = make_type("ExtSlice", slice_type, ExtSlice_fields, 1);
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@ -1578,6 +1578,21 @@ Str(string s, int lineno, int col_offset, PyArena *arena)
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return p;
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}
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expr_ty
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Ellipsis(int lineno, int col_offset, PyArena *arena)
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{
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expr_ty p;
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p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
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if (!p) {
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PyErr_NoMemory();
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return NULL;
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}
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p->kind = Ellipsis_kind;
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p->lineno = lineno;
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p->col_offset = col_offset;
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return p;
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}
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expr_ty
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Attribute(expr_ty value, identifier attr, expr_context_ty ctx, int lineno, int
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col_offset, PyArena *arena)
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@ -1720,19 +1735,6 @@ Tuple(asdl_seq * elts, expr_context_ty ctx, int lineno, int col_offset, PyArena
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return p;
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}
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slice_ty
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Ellipsis(PyArena *arena)
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{
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slice_ty p;
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p = (slice_ty)PyArena_Malloc(arena, sizeof(*p));
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if (!p) {
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PyErr_NoMemory();
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return NULL;
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}
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p->kind = Ellipsis_kind;
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return p;
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}
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slice_ty
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Slice(expr_ty lower, expr_ty upper, expr_ty step, PyArena *arena)
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{
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@ -2515,6 +2517,10 @@ ast2obj_expr(void* _o)
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goto failed;
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Py_DECREF(value);
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break;
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case Ellipsis_kind:
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result = PyType_GenericNew(Ellipsis_type, NULL, NULL);
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if (!result) goto failed;
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break;
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case Attribute_kind:
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result = PyType_GenericNew(Attribute_type, NULL, NULL);
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if (!result) goto failed;
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@ -2648,10 +2654,6 @@ ast2obj_slice(void* _o)
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}
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switch (o->kind) {
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case Ellipsis_kind:
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result = PyType_GenericNew(Ellipsis_type, NULL, NULL);
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if (!result) goto failed;
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break;
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case Slice_kind:
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result = PyType_GenericNew(Slice_type, NULL, NULL);
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if (!result) goto failed;
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@ -3059,6 +3061,8 @@ init_ast(void)
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if (PyDict_SetItemString(d, "Call", (PyObject*)Call_type) < 0) return;
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if (PyDict_SetItemString(d, "Num", (PyObject*)Num_type) < 0) return;
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if (PyDict_SetItemString(d, "Str", (PyObject*)Str_type) < 0) return;
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if (PyDict_SetItemString(d, "Ellipsis", (PyObject*)Ellipsis_type) < 0)
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return;
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if (PyDict_SetItemString(d, "Attribute", (PyObject*)Attribute_type) <
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0) return;
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if (PyDict_SetItemString(d, "Subscript", (PyObject*)Subscript_type) <
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@ -3077,8 +3081,6 @@ init_ast(void)
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return;
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if (PyDict_SetItemString(d, "Param", (PyObject*)Param_type) < 0) return;
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if (PyDict_SetItemString(d, "slice", (PyObject*)slice_type) < 0) return;
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if (PyDict_SetItemString(d, "Ellipsis", (PyObject*)Ellipsis_type) < 0)
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return;
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if (PyDict_SetItemString(d, "Slice", (PyObject*)Slice_type) < 0) return;
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if (PyDict_SetItemString(d, "ExtSlice", (PyObject*)ExtSlice_type) < 0)
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return;
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11
Python/ast.c
11
Python/ast.c
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@ -399,6 +399,9 @@ set_context(expr_ty e, expr_context_ty ctx, const node *n)
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case Str_kind:
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expr_name = "literal";
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break;
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case Ellipsis_kind:
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expr_name = "Ellipsis";
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break;
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case Compare_kind:
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expr_name = "comparison";
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break;
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@ -1213,6 +1216,9 @@ ast_for_atom(struct compiling *c, const node *n)
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PyArena_AddPyObject(c->c_arena, pynum);
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return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena);
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}
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case DOT:
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/* Ellipsis */
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return Ellipsis(LINENO(n), n->n_col_offset, c->c_arena);
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case LPAR: /* some parenthesized expressions */
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ch = CHILD(n, 1);
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@ -1308,13 +1314,10 @@ ast_for_slice(struct compiling *c, const node *n)
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REQ(n, subscript);
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/*
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subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop]
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subscript: test | [test] ':' [test] [sliceop]
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sliceop: ':' [test]
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*/
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ch = CHILD(n, 0);
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if (TYPE(ch) == DOT)
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return Ellipsis(c->c_arena);
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if (NCH(n) == 1 && TYPE(ch) == test) {
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/* 'step' variable hold no significance in terms of being used over
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other vars */
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@ -2746,6 +2746,8 @@ static int
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expr_constant(expr_ty e)
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{
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switch (e->kind) {
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case Ellipsis_kind:
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return 1;
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case Num_kind:
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return PyObject_IsTrue(e->v.Num.n);
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case Str_kind:
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@ -2977,6 +2979,9 @@ compiler_visit_expr(struct compiler *c, expr_ty e)
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case Str_kind:
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ADDOP_O(c, LOAD_CONST, e->v.Str.s, consts);
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break;
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case Ellipsis_kind:
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ADDOP_O(c, LOAD_CONST, Py_Ellipsis, consts);
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break;
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/* The following exprs can be assignment targets. */
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case Attribute_kind:
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if (e->v.Attribute.ctx != AugStore)
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@ -3255,9 +3260,6 @@ compiler_visit_nested_slice(struct compiler *c, slice_ty s,
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expr_context_ty ctx)
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{
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switch (s->kind) {
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case Ellipsis_kind:
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ADDOP_O(c, LOAD_CONST, Py_Ellipsis, consts);
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break;
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case Slice_kind:
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return compiler_slice(c, s, ctx);
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case Index_kind:
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@ -3284,12 +3286,6 @@ compiler_visit_slice(struct compiler *c, slice_ty s, expr_context_ty ctx)
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VISIT(c, expr, s->v.Index.value);
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}
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break;
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case Ellipsis_kind:
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kindname = "ellipsis";
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if (ctx != AugStore) {
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ADDOP_O(c, LOAD_CONST, Py_Ellipsis, consts);
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}
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break;
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case Slice_kind:
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kindname = "slice";
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if (!s->v.Slice.step)
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@ -1209,25 +1209,26 @@ static state states_59[4] = {
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{1, arcs_59_2},
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{1, arcs_59_3},
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};
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static arc arcs_60_0[6] = {
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static arc arcs_60_0[7] = {
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{13, 1},
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{142, 2},
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{145, 3},
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{19, 4},
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{148, 4},
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{149, 5},
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{74, 6},
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};
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static arc arcs_60_1[3] = {
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{42, 6},
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{141, 6},
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{42, 7},
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{141, 7},
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{15, 4},
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};
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static arc arcs_60_2[2] = {
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{143, 7},
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{143, 8},
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{144, 4},
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};
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static arc arcs_60_3[2] = {
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{146, 8},
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{146, 9},
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{147, 4},
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};
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static arc arcs_60_4[1] = {
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@ -1238,16 +1239,22 @@ static arc arcs_60_5[2] = {
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{0, 5},
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};
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static arc arcs_60_6[1] = {
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{15, 4},
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{74, 10},
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};
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static arc arcs_60_7[1] = {
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{144, 4},
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{15, 4},
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};
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static arc arcs_60_8[1] = {
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{144, 4},
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};
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static arc arcs_60_9[1] = {
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{147, 4},
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};
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static state states_60[9] = {
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{6, arcs_60_0},
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static arc arcs_60_10[1] = {
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{74, 4},
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};
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static state states_60[11] = {
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{7, arcs_60_0},
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{3, arcs_60_1},
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{2, arcs_60_2},
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{2, arcs_60_3},
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@ -1256,6 +1263,8 @@ static state states_60[9] = {
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{1, arcs_60_6},
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{1, arcs_60_7},
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{1, arcs_60_8},
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{1, arcs_60_9},
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{1, arcs_60_10},
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};
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static arc arcs_61_0[1] = {
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{26, 1},
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@ -1381,41 +1390,32 @@ static state states_65[3] = {
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{2, arcs_65_1},
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{2, arcs_65_2},
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};
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static arc arcs_66_0[3] = {
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{74, 1},
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{26, 2},
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{21, 3},
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static arc arcs_66_0[2] = {
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{26, 1},
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{21, 2},
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};
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static arc arcs_66_1[1] = {
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{74, 4},
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static arc arcs_66_1[2] = {
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{21, 2},
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{0, 1},
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};
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static arc arcs_66_2[2] = {
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{21, 3},
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static arc arcs_66_2[3] = {
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{26, 3},
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{154, 4},
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{0, 2},
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};
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static arc arcs_66_3[3] = {
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{26, 5},
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{154, 6},
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static arc arcs_66_3[2] = {
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{154, 4},
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{0, 3},
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};
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static arc arcs_66_4[1] = {
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{74, 6},
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{0, 4},
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};
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static arc arcs_66_5[2] = {
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{154, 6},
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{0, 5},
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};
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static arc arcs_66_6[1] = {
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{0, 6},
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};
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static state states_66[7] = {
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{3, arcs_66_0},
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{1, arcs_66_1},
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{2, arcs_66_2},
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{3, arcs_66_3},
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static state states_66[5] = {
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{2, arcs_66_0},
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{2, arcs_66_1},
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{3, arcs_66_2},
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{2, arcs_66_3},
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{1, arcs_66_4},
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{2, arcs_66_5},
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{1, arcs_66_6},
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};
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static arc arcs_67_0[1] = {
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{21, 1},
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@ -1753,11 +1753,11 @@ static state states_82[3] = {
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};
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static dfa dfas[83] = {
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{256, "single_input", 0, 3, states_0,
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"\004\050\014\000\000\000\200\012\236\202\201\054\001\004\001\000\030\102\062\010\010"},
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"\004\050\014\000\000\000\200\012\236\206\201\054\001\004\001\000\030\102\062\010\010"},
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{257, "file_input", 0, 2, states_1,
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"\204\050\014\000\000\000\200\012\236\202\201\054\001\004\001\000\030\102\062\010\010"},
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"\204\050\014\000\000\000\200\012\236\206\201\054\001\004\001\000\030\102\062\010\010"},
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{258, "eval_input", 0, 3, states_2,
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"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
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"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
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{259, "decorator", 0, 7, states_3,
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"\000\010\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
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{260, "decorators", 0, 2, states_4,
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@ -1773,13 +1773,13 @@ static dfa dfas[83] = {
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{265, "fplist", 0, 3, states_9,
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"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
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{266, "stmt", 0, 2, states_10,
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"\000\050\014\000\000\000\200\012\236\202\201\054\001\004\001\000\030\102\062\010\010"},
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"\000\050\014\000\000\000\200\012\236\206\201\054\001\004\001\000\030\102\062\010\010"},
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{267, "simple_stmt", 0, 4, states_11,
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"\000\040\010\000\000\000\200\012\236\202\001\000\000\004\001\000\030\102\062\000\010"},
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"\000\040\010\000\000\000\200\012\236\206\001\000\000\004\001\000\030\102\062\000\010"},
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{268, "small_stmt", 0, 2, states_12,
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"\000\040\010\000\000\000\200\012\236\202\001\000\000\004\001\000\030\102\062\000\010"},
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"\000\040\010\000\000\000\200\012\236\206\001\000\000\004\001\000\030\102\062\000\010"},
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{269, "expr_stmt", 0, 6, states_13,
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"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
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"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
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{270, "augassign", 0, 2, states_14,
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"\000\000\000\000\000\370\177\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
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{271, "print_stmt", 0, 9, states_15,
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@ -1837,69 +1837,69 @@ static dfa dfas[83] = {
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{297, "except_clause", 0, 5, states_41,
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"\000\000\000\000\000\000\000\000\000\000\000\000\010\000\000\000\000\000\000\000\000"},
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{298, "suite", 0, 5, states_42,
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"\004\040\010\000\000\000\200\012\236\202\001\000\000\004\001\000\030\102\062\000\010"},
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"\004\040\010\000\000\000\200\012\236\206\001\000\000\004\001\000\030\102\062\000\010"},
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{299, "testlist_safe", 0, 5, states_43,
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"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
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"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
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{300, "old_test", 0, 2, states_44,
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"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
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"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
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{301, "old_lambdef", 0, 5, states_45,
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"\000\000\000\000\000\000\000\000\000\000\000\000\000\004\000\000\000\000\000\000\000"},
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{302, "test", 0, 6, states_46,
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"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
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"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
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{303, "or_test", 0, 2, states_47,
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"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\001\000\030\102\062\000\000"},
|
||||
{304, "and_test", 0, 2, states_48,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\001\000\030\102\062\000\000"},
|
||||
{305, "not_test", 0, 3, states_49,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\001\000\030\102\062\000\000"},
|
||||
{306, "comparison", 0, 2, states_50,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{307, "comp_op", 0, 4, states_51,
|
||||
"\000\000\000\000\000\000\000\000\000\000\000\020\000\000\371\003\000\000\000\000\000"},
|
||||
{308, "expr", 0, 2, states_52,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{309, "xor_expr", 0, 2, states_53,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{310, "and_expr", 0, 2, states_54,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{311, "shift_expr", 0, 2, states_55,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{312, "arith_expr", 0, 2, states_56,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{313, "term", 0, 2, states_57,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{314, "factor", 0, 3, states_58,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{315, "power", 0, 4, states_59,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\000\100\062\000\000"},
|
||||
{316, "atom", 0, 9, states_60,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\000\100\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\000\100\062\000\000"},
|
||||
{316, "atom", 0, 11, states_60,
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\000\100\062\000\000"},
|
||||
{317, "listmaker", 0, 5, states_61,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{318, "testlist_gexp", 0, 5, states_62,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{319, "lambdef", 0, 5, states_63,
|
||||
"\000\000\000\000\000\000\000\000\000\000\000\000\000\004\000\000\000\000\000\000\000"},
|
||||
{320, "trailer", 0, 7, states_64,
|
||||
"\000\040\000\000\000\000\000\000\000\004\000\000\000\000\000\000\000\100\000\000\000"},
|
||||
{321, "subscriptlist", 0, 3, states_65,
|
||||
"\000\040\050\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{322, "subscript", 0, 7, states_66,
|
||||
{322, "subscript", 0, 5, states_66,
|
||||
"\000\040\050\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{323, "sliceop", 0, 3, states_67,
|
||||
"\000\000\040\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
|
||||
{324, "exprlist", 0, 3, states_68,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\000\000\000\030\102\062\000\000"},
|
||||
{325, "testlist", 0, 3, states_69,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{326, "dictsetmaker", 0, 8, states_70,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{327, "classdef", 0, 8, states_71,
|
||||
"\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\010\000"},
|
||||
{328, "arglist", 0, 8, states_72,
|
||||
"\000\040\010\060\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\060\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{329, "argument", 0, 4, states_73,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{330, "list_iter", 0, 2, states_74,
|
||||
"\000\000\000\000\000\000\000\000\000\000\200\010\000\000\000\000\000\000\000\000\000"},
|
||||
{331, "list_for", 0, 6, states_75,
|
||||
|
|
@ -1913,7 +1913,7 @@ static dfa dfas[83] = {
|
|||
{335, "gen_if", 0, 4, states_79,
|
||||
"\000\000\000\000\000\000\000\000\000\000\200\000\000\000\000\000\000\000\000\000\000"},
|
||||
{336, "testlist1", 0, 2, states_80,
|
||||
"\000\040\010\000\000\000\000\000\000\000\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
"\000\040\010\000\000\000\000\000\000\004\000\000\000\004\001\000\030\102\062\000\000"},
|
||||
{337, "encoding_decl", 0, 2, states_81,
|
||||
"\000\000\010\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
|
||||
{338, "yield_expr", 0, 3, states_82,
|
||||
|
|
|
|||
|
|
@ -1161,6 +1161,7 @@ symtable_visit_expr(struct symtable *st, expr_ty e)
|
|||
break;
|
||||
case Num_kind:
|
||||
case Str_kind:
|
||||
case Ellipsis_kind:
|
||||
/* Nothing to do here. */
|
||||
break;
|
||||
/* The following exprs can be assignment targets. */
|
||||
|
|
@ -1365,8 +1366,6 @@ symtable_visit_slice(struct symtable *st, slice_ty s)
|
|||
case Index_kind:
|
||||
VISIT(st, expr, s->v.Index.value)
|
||||
break;
|
||||
case Ellipsis_kind:
|
||||
break;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue