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bpo-43914: Highlight invalid ranges in SyntaxErrors (#25525)

Browse source 
To improve the user experience understanding what part of the error messages associated with SyntaxErrors is wrong, we can highlight the whole error range and not only place the caret at the first character. In this way:

>>> foo(x, z for z in range(10), t, w)
  File "<stdin>", line 1
    foo(x, z for z in range(10), t, w)
           ^
SyntaxError: Generator expression must be parenthesized

becomes

>>> foo(x, z for z in range(10), t, w)
  File "<stdin>", line 1
    foo(x, z for z in range(10), t, w)
           ^^^^^^^^^^^^^^^^^^^^
SyntaxError: Generator expression must be parenthesized
This commit is contained in:
Pablo Galindo 2021-04-23 14:27:05 +01:00 • committed by GitHub
parent 91b69b77cf
commit a77aac4fca
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
17 changed files with 1687 additions and 1219 deletions
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13
Python/compile.c
View file

@ -197,6 +197,8 @@ struct compiler_unit {
int u_firstlineno; /* the first lineno of the block */
int u_lineno; /* the lineno for the current stmt */
int u_col_offset; /* the offset of the current stmt */
int u_end_lineno; /* the end line of the current stmt */
int u_end_col_offset; /* the end offset of the current stmt */
};
/* This struct captures the global state of a compilation.
@ -641,6 +643,8 @@ compiler_enter_scope(struct compiler *c, identifier name,
u->u_firstlineno = lineno;
u->u_lineno = 0;
u->u_col_offset = 0;
u->u_end_lineno = 0;
u->u_end_col_offset = 0;
u->u_consts = PyDict_New();
if (!u->u_consts) {
compiler_unit_free(u);
@ -911,7 +915,9 @@ compiler_next_instr(basicblock *b)
#define SET_LOC(c, x) \
(c)->u->u_lineno = (x)->lineno; \
(c)->u->u_col_offset = (x)->col_offset;
(c)->u->u_col_offset = (x)->col_offset; \
(c)->u->u_end_lineno = (x)->end_lineno; \
(c)->u->u_end_col_offset = (x)->end_col_offset;
/* Return the stack effect of opcode with argument oparg.
@ -5474,8 +5480,9 @@ compiler_error(struct compiler *c, const char *format, ...)
Py_INCREF(Py_None);
loc = Py_None;
}
PyObject *args = Py_BuildValue("O(OiiO)", msg, c->c_filename,
c->u->u_lineno, c->u->u_col_offset + 1, loc);
PyObject *args = Py_BuildValue("O(OiiOii)", msg, c->c_filename,
c->u->u_lineno, c->u->u_col_offset + 1, loc,
c->u->u_end_lineno, c->u->u_end_col_offset + 1);
Py_DECREF(msg);
if (args == NULL) {
goto exit;

44
Python/errors.c
View file

@ -1545,14 +1545,17 @@ PyErr_SyntaxLocation(const char *filename, int lineno)
If the exception is not a SyntaxError, also sets additional attributes
to make printing of exceptions believe it is a syntax error. */
void
PyErr_SyntaxLocationObject(PyObject *filename, int lineno, int col_offset)
static void
PyErr_SyntaxLocationObjectEx(PyObject *filename, int lineno, int col_offset,
int end_lineno, int end_col_offset)
{
PyObject *exc, *v, *tb, *tmp;
_Py_IDENTIFIER(filename);
_Py_IDENTIFIER(lineno);
_Py_IDENTIFIER(end_lineno);
_Py_IDENTIFIER(msg);
_Py_IDENTIFIER(offset);
_Py_IDENTIFIER(end_offset);
_Py_IDENTIFIER(print_file_and_line);
_Py_IDENTIFIER(text);
PyThreadState *tstate = _PyThreadState_GET();
@ -1582,6 +1585,32 @@ PyErr_SyntaxLocationObject(PyObject *filename, int lineno, int col_offset)
_PyErr_Clear(tstate);
}
Py_XDECREF(tmp);
tmp = NULL;
if (end_lineno >= 0) {
tmp = PyLong_FromLong(end_lineno);
if (tmp == NULL) {
_PyErr_Clear(tstate);
}
}
if (_PyObject_SetAttrId(v, &PyId_end_lineno, tmp ? tmp : Py_None)) {
_PyErr_Clear(tstate);
}
Py_XDECREF(tmp);
tmp = NULL;
if (end_col_offset >= 0) {
tmp = PyLong_FromLong(end_col_offset);
if (tmp == NULL) {
_PyErr_Clear(tstate);
}
}
if (_PyObject_SetAttrId(v, &PyId_end_offset, tmp ? tmp : Py_None)) {
_PyErr_Clear(tstate);
}
Py_XDECREF(tmp);
tmp = NULL;
if (filename != NULL) {
if (_PyObject_SetAttrId(v, &PyId_filename, filename)) {
_PyErr_Clear(tstate);
@ -1633,6 +1662,17 @@ PyErr_SyntaxLocationObject(PyObject *filename, int lineno, int col_offset)
_PyErr_Restore(tstate, exc, v, tb);
}
void
PyErr_SyntaxLocationObject(PyObject *filename, int lineno, int col_offset) {
PyErr_SyntaxLocationObjectEx(filename, lineno, col_offset, lineno, -1);
}
void
PyErr_RangedSyntaxLocationObject(PyObject *filename, int lineno, int col_offset,
int end_lineno, int end_col_offset) {
PyErr_SyntaxLocationObjectEx(filename, lineno, col_offset, end_lineno, end_col_offset);
}
void
PyErr_SyntaxLocationEx(const char *filename, int lineno, int col_offset)
{

73
Python/pythonrun.c
View file

@ -510,7 +510,9 @@ PyRun_SimpleStringFlags(const char *command, PyCompilerFlags *flags)
static int
parse_syntax_error(PyObject *err, PyObject **message, PyObject **filename,
Py_ssize_t *lineno, Py_ssize_t *offset, PyObject **text)
Py_ssize_t *lineno, Py_ssize_t *offset,
Py_ssize_t* end_lineno, Py_ssize_t* end_offset,
PyObject **text)
{
Py_ssize_t hold;
PyObject *v;
@ -518,6 +520,8 @@ parse_syntax_error(PyObject *err, PyObject **message, PyObject **filename,
_Py_IDENTIFIER(filename);
_Py_IDENTIFIER(lineno);
_Py_IDENTIFIER(offset);
_Py_IDENTIFIER(end_lineno);
_Py_IDENTIFIER(end_offset);
_Py_IDENTIFIER(text);
*message = NULL;
@ -565,6 +569,44 @@ parse_syntax_error(PyObject *err, PyObject **message, PyObject **filename,
*offset = hold;
}
if (Py_TYPE(err) == (PyTypeObject*)PyExc_SyntaxError) {
v = _PyObject_GetAttrId(err, &PyId_end_lineno);
if (!v) {
PyErr_Clear();
*end_lineno = *lineno;
}
else if (v == Py_None) {
*end_lineno = *lineno;
Py_DECREF(v);
} else {
hold = PyLong_AsSsize_t(v);
Py_DECREF(v);
if (hold < 0 && PyErr_Occurred())
goto finally;
*end_lineno = hold;
}
v = _PyObject_GetAttrId(err, &PyId_end_offset);
if (!v) {
PyErr_Clear();
*end_offset = -1;
}
else if (v == Py_None) {
*end_offset = -1;
Py_DECREF(v);
} else {
hold = PyLong_AsSsize_t(v);
Py_DECREF(v);
if (hold < 0 && PyErr_Occurred())
goto finally;
*end_offset = hold;
}
} else {
// SyntaxError subclasses
*end_lineno = *lineno;
*end_offset = -1;
}
v = _PyObject_GetAttrId(err, &PyId_text);
if (!v)
goto finally;
@ -584,8 +626,9 @@ finally:
}
static void
print_error_text(PyObject *f, Py_ssize_t offset, PyObject *text_obj)
print_error_text(PyObject *f, Py_ssize_t offset, Py_ssize_t end_offset, PyObject *text_obj)
{
size_t caret_repetitions = (end_offset > 0 && end_offset > offset) ? end_offset - offset : 1;
/* Convert text to a char pointer; return if error */
const char *text = PyUnicode_AsUTF8(text_obj);
if (text == NULL)
@ -645,7 +688,10 @@ print_error_text(PyObject *f, Py_ssize_t offset, PyObject *text_obj)
while (--offset >= 0) {
PyFile_WriteString(" ", f);
}
PyFile_WriteString("^\n", f);
for (size_t caret_iter=0; caret_iter < caret_repetitions ; caret_iter++) {
PyFile_WriteString("^", f);
}
PyFile_WriteString("\n", f);
}
@ -865,11 +911,12 @@ print_exception(PyObject *f, PyObject *value)
(err = _PyObject_LookupAttrId(value, &PyId_print_file_and_line, &tmp)) > 0)
{
PyObject *message, *filename, *text;
Py_ssize_t lineno, offset;
Py_ssize_t lineno, offset, end_lineno, end_offset;
err = 0;
Py_DECREF(tmp);
if (!parse_syntax_error(value, &message, &filename,
&lineno, &offset, &text))
&lineno, &offset,
&end_lineno, &end_offset, &text))
PyErr_Clear();
else {
PyObject *line;
@ -886,7 +933,21 @@ print_exception(PyObject *f, PyObject *value)
}
if (text != NULL) {
print_error_text(f, offset, text);
Py_ssize_t line_size;
const char* error_line = PyUnicode_AsUTF8AndSize(text, &line_size);
// If the location of the error spawn multiple lines, we want
// to just print the first one and highlight everything until
// the end of that one since we don't support multi-line error
// messages.
if (end_lineno > lineno) {
end_offset = (error_line != NULL) ? line_size : -1;
}
// Limit the ammount of '^' that we can display to
// the size of the text in the source line.
if (error_line != NULL && end_offset > line_size + 1) {
end_offset = line_size + 1;
}
print_error_text(f, offset, end_offset, text);
Py_DECREF(text);
}

141
Python/symtable.c
View file

@ -47,7 +47,8 @@
static PySTEntryObject *
ste_new(struct symtable *st, identifier name, _Py_block_ty block,
void *key, int lineno, int col_offset)
void *key, int lineno, int col_offset,
int end_lineno, int end_col_offset)
{
PySTEntryObject *ste = NULL;
PyObject *k = NULL;
@ -81,6 +82,8 @@ ste_new(struct symtable *st, identifier name, _Py_block_ty block,
ste->ste_opt_col_offset = 0;
ste->ste_lineno = lineno;
ste->ste_col_offset = col_offset;
ste->ste_end_lineno = end_lineno;
ste->ste_end_col_offset = end_col_offset;
if (st->st_cur != NULL &&
(st->st_cur->ste_nested ||
@ -190,8 +193,9 @@ PyTypeObject PySTEntry_Type = {
static int symtable_analyze(struct symtable *st);
static int symtable_enter_block(struct symtable *st, identifier name,
_Py_block_ty block, void *ast, int lineno,
int col_offset);
_Py_block_ty block, void *ast,
int lineno, int col_offset,
int end_lineno, int end_col_offset);
static int symtable_exit_block(struct symtable *st);
static int symtable_visit_stmt(struct symtable *st, stmt_ty s);
static int symtable_visit_expr(struct symtable *st, expr_ty s);
@ -296,7 +300,7 @@ _PySymtable_Build(mod_ty mod, PyObject *filename, PyFutureFeatures *future)
/* Make the initial symbol information gathering pass */
if (!GET_IDENTIFIER(top) ||
!symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0, 0)) {
!symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0, 0, 0, 0)) {
_PySymtable_Free(st);
return NULL;
}
@ -409,9 +413,11 @@ error_at_directive(PySTEntryObject *ste, PyObject *name)
assert(PyTuple_CheckExact(data));
assert(PyUnicode_CheckExact(PyTuple_GET_ITEM(data, 0)));
if (PyUnicode_Compare(PyTuple_GET_ITEM(data, 0), name) == 0) {
PyErr_SyntaxLocationObject(ste->ste_table->st_filename,
PyLong_AsLong(PyTuple_GET_ITEM(data, 1)),
PyLong_AsLong(PyTuple_GET_ITEM(data, 2)) + 1);
PyErr_RangedSyntaxLocationObject(ste->ste_table->st_filename,
PyLong_AsLong(PyTuple_GET_ITEM(data, 1)),
PyLong_AsLong(PyTuple_GET_ITEM(data, 2)) + 1,
PyLong_AsLong(PyTuple_GET_ITEM(data, 3)),
PyLong_AsLong(PyTuple_GET_ITEM(data, 4)) + 1);
return 0;
}
@ -958,11 +964,12 @@ symtable_exit_block(struct symtable *st)
static int
symtable_enter_block(struct symtable *st, identifier name, _Py_block_ty block,
void *ast, int lineno, int col_offset)
void *ast, int lineno, int col_offset,
int end_lineno, int end_col_offset)
{
PySTEntryObject *prev = NULL, *ste;
ste = ste_new(st, name, block, ast, lineno, col_offset);
ste = ste_new(st, name, block, ast, lineno, col_offset, end_lineno, end_col_offset);
if (ste == NULL)
return 0;
if (PyList_Append(st->st_stack, (PyObject *)ste) < 0) {
@ -1018,9 +1025,11 @@ symtable_add_def_helper(struct symtable *st, PyObject *name, int flag, struct _s
if ((flag & DEF_PARAM) && (val & DEF_PARAM)) {
/* Is it better to use 'mangled' or 'name' here? */
PyErr_Format(PyExc_SyntaxError, DUPLICATE_ARGUMENT, name);
PyErr_SyntaxLocationObject(st->st_filename,
ste->ste_lineno,
ste->ste_col_offset + 1);
PyErr_RangedSyntaxLocationObject(st->st_filename,
ste->ste_lineno,
ste->ste_col_offset + 1,
ste->ste_end_lineno,
ste->ste_end_col_offset + 1);
goto error;
}
val |= flag;
@ -1040,9 +1049,11 @@ symtable_add_def_helper(struct symtable *st, PyObject *name, int flag, struct _s
if (val & (DEF_GLOBAL | DEF_NONLOCAL)) {
PyErr_Format(PyExc_SyntaxError,
NAMED_EXPR_COMP_INNER_LOOP_CONFLICT, name);
PyErr_SyntaxLocationObject(st->st_filename,
ste->ste_lineno,
ste->ste_col_offset + 1);
PyErr_RangedSyntaxLocationObject(st->st_filename,
ste->ste_lineno,
ste->ste_col_offset + 1,
ste->ste_end_lineno,
ste->ste_end_col_offset + 1);
goto error;
}
val |= DEF_COMP_ITER;
@ -1141,7 +1152,8 @@ symtable_add_def(struct symtable *st, PyObject *name, int flag) {
}
static int
symtable_record_directive(struct symtable *st, identifier name, int lineno, int col_offset)
symtable_record_directive(struct symtable *st, identifier name, int lineno,
int col_offset, int end_lineno, int end_col_offset)
{
PyObject *data, *mangled;
int res;
@ -1153,7 +1165,7 @@ symtable_record_directive(struct symtable *st, identifier name, int lineno, int
mangled = _Py_Mangle(st->st_private, name);
if (!mangled)
return 0;
data = Py_BuildValue("(Nii)", mangled, lineno, col_offset);
data = Py_BuildValue("(Niiii)", mangled, lineno, col_offset, end_lineno, end_col_offset);
if (!data)
return 0;
res = PyList_Append(st->st_cur->ste_directives, data);
@ -1184,8 +1196,9 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
if (s->v.FunctionDef.decorator_list)
VISIT_SEQ(st, expr, s->v.FunctionDef.decorator_list);
if (!symtable_enter_block(st, s->v.FunctionDef.name,
FunctionBlock, (void *)s, s->lineno,
s->col_offset))
FunctionBlock, (void *)s,
s->lineno, s->col_offset,
s->end_lineno, s->end_col_offset))
VISIT_QUIT(st, 0);
VISIT(st, arguments, s->v.FunctionDef.args);
VISIT_SEQ(st, stmt, s->v.FunctionDef.body);
@ -1201,7 +1214,8 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
if (s->v.ClassDef.decorator_list)
VISIT_SEQ(st, expr, s->v.ClassDef.decorator_list);
if (!symtable_enter_block(st, s->v.ClassDef.name, ClassBlock,
(void *)s, s->lineno, s->col_offset))
(void *)s, s->lineno, s->col_offset,
s->end_lineno, s->end_col_offset))
VISIT_QUIT(st, 0);
tmp = st->st_private;
st->st_private = s->v.ClassDef.name;
@ -1237,9 +1251,11 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
PyErr_Format(PyExc_SyntaxError,
cur & DEF_GLOBAL ? GLOBAL_ANNOT : NONLOCAL_ANNOT,
e_name->v.Name.id);
PyErr_SyntaxLocationObject(st->st_filename,
s->lineno,
s->col_offset + 1);
PyErr_RangedSyntaxLocationObject(st->st_filename,
s->lineno,
s->col_offset + 1,
s->end_lineno,
s->end_col_offset + 1);
VISIT_QUIT(st, 0);
}
if (s->v.AnnAssign.simple &&
@ -1336,14 +1352,17 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
}
PyErr_Format(PyExc_SyntaxError,
msg, name);
PyErr_SyntaxLocationObject(st->st_filename,
s->lineno,
s->col_offset + 1);
PyErr_RangedSyntaxLocationObject(st->st_filename,
s->lineno,
s->col_offset + 1,
s->end_lineno,
s->end_col_offset + 1);
VISIT_QUIT(st, 0);
}
if (!symtable_add_def(st, name, DEF_GLOBAL))
VISIT_QUIT(st, 0);
if (!symtable_record_directive(st, name, s->lineno, s->col_offset))
if (!symtable_record_directive(st, name, s->lineno, s->col_offset,
s->end_lineno, s->end_col_offset))
VISIT_QUIT(st, 0);
}
break;
@ -1368,14 +1387,17 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
msg = NONLOCAL_AFTER_ASSIGN;
}
PyErr_Format(PyExc_SyntaxError, msg, name);
PyErr_SyntaxLocationObject(st->st_filename,
s->lineno,
s->col_offset + 1);
PyErr_RangedSyntaxLocationObject(st->st_filename,
s->lineno,
s->col_offset + 1,
s->end_lineno,
s->end_col_offset + 1);
VISIT_QUIT(st, 0);
}
if (!symtable_add_def(st, name, DEF_NONLOCAL))
VISIT_QUIT(st, 0);
if (!symtable_record_directive(st, name, s->lineno, s->col_offset))
if (!symtable_record_directive(st, name, s->lineno, s->col_offset,
s->end_lineno, s->end_col_offset))
VISIT_QUIT(st, 0);
}
break;
@ -1406,8 +1428,9 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
if (s->v.AsyncFunctionDef.decorator_list)
VISIT_SEQ(st, expr, s->v.AsyncFunctionDef.decorator_list);
if (!symtable_enter_block(st, s->v.AsyncFunctionDef.name,
FunctionBlock, (void *)s, s->lineno,
s->col_offset))
FunctionBlock, (void *)s,
s->lineno, s->col_offset,
s->end_lineno, s->end_col_offset))
VISIT_QUIT(st, 0);
st->st_cur->ste_coroutine = 1;
VISIT(st, arguments, s->v.AsyncFunctionDef.args);
@ -1453,9 +1476,11 @@ symtable_extend_namedexpr_scope(struct symtable *st, expr_ty e)
long target_in_scope = _PyST_GetSymbol(ste, target_name);
if (target_in_scope & DEF_COMP_ITER) {
PyErr_Format(PyExc_SyntaxError, NAMED_EXPR_COMP_CONFLICT, target_name);
PyErr_SyntaxLocationObject(st->st_filename,
e->lineno,
e->col_offset);
PyErr_RangedSyntaxLocationObject(st->st_filename,
e->lineno,
e->col_offset + 1,
e->end_lineno,
e->end_col_offset + 1);
VISIT_QUIT(st, 0);
}
continue;
@ -1471,7 +1496,8 @@ symtable_extend_namedexpr_scope(struct symtable *st, expr_ty e)
if (!symtable_add_def(st, target_name, DEF_NONLOCAL))
VISIT_QUIT(st, 0);
}
if (!symtable_record_directive(st, target_name, e->lineno, e->col_offset))
if (!symtable_record_directive(st, target_name, e->lineno, e->col_offset,
e->end_lineno, e->end_col_offset))
VISIT_QUIT(st, 0);
return symtable_add_def_helper(st, target_name, DEF_LOCAL, ste);
@ -1480,7 +1506,8 @@ symtable_extend_namedexpr_scope(struct symtable *st, expr_ty e)
if (ste->ste_type == ModuleBlock) {
if (!symtable_add_def(st, target_name, DEF_GLOBAL))
VISIT_QUIT(st, 0);
if (!symtable_record_directive(st, target_name, e->lineno, e->col_offset))
if (!symtable_record_directive(st, target_name, e->lineno, e->col_offset,
e->end_lineno, e->end_col_offset))
VISIT_QUIT(st, 0);
return symtable_add_def_helper(st, target_name, DEF_GLOBAL, ste);
@ -1488,9 +1515,11 @@ symtable_extend_namedexpr_scope(struct symtable *st, expr_ty e)
/* Disallow usage in ClassBlock */
if (ste->ste_type == ClassBlock) {
PyErr_Format(PyExc_SyntaxError, NAMED_EXPR_COMP_IN_CLASS);
PyErr_SyntaxLocationObject(st->st_filename,
e->lineno,
e->col_offset);
PyErr_RangedSyntaxLocationObject(st->st_filename,
e->lineno,
e->col_offset + 1,
e->end_lineno,
e->end_col_offset + 1);
VISIT_QUIT(st, 0);
}
}
@ -1508,9 +1537,11 @@ symtable_handle_namedexpr(struct symtable *st, expr_ty e)
if (st->st_cur->ste_comp_iter_expr > 0) {
/* Assignment isn't allowed in a comprehension iterable expression */
PyErr_Format(PyExc_SyntaxError, NAMED_EXPR_COMP_ITER_EXPR);
PyErr_SyntaxLocationObject(st->st_filename,
e->lineno,
e->col_offset);
PyErr_RangedSyntaxLocationObject(st->st_filename,
e->lineno,
e->col_offset + 1,
e->end_lineno,
e->end_col_offset + 1);
return 0;
}
if (st->st_cur->ste_comprehension) {
@ -1554,8 +1585,9 @@ symtable_visit_expr(struct symtable *st, expr_ty e)
if (e->v.Lambda.args->kw_defaults)
VISIT_SEQ_WITH_NULL(st, expr, e->v.Lambda.args->kw_defaults);
if (!symtable_enter_block(st, lambda,
FunctionBlock, (void *)e, e->lineno,
e->col_offset))
FunctionBlock, (void *)e,
e->lineno, e->col_offset,
e->end_lineno, e->end_col_offset))
VISIT_QUIT(st, 0);
VISIT(st, arguments, e->v.Lambda.args);
VISIT(st, expr, e->v.Lambda.body);
@ -1839,8 +1871,12 @@ symtable_visit_alias(struct symtable *st, alias_ty a)
if (st->st_cur->ste_type != ModuleBlock) {
int lineno = st->st_cur->ste_lineno;
int col_offset = st->st_cur->ste_col_offset;
int end_lineno = st->st_cur->ste_end_lineno;
int end_col_offset = st->st_cur->ste_end_col_offset;
PyErr_SetString(PyExc_SyntaxError, IMPORT_STAR_WARNING);
PyErr_SyntaxLocationObject(st->st_filename, lineno, col_offset + 1);
PyErr_RangedSyntaxLocationObject(st->st_filename,
lineno, col_offset + 1,
end_lineno, end_col_offset + 1);
Py_DECREF(store_name);
return 0;
}
@ -1890,7 +1926,8 @@ symtable_handle_comprehension(struct symtable *st, expr_ty e,
/* Create comprehension scope for the rest */
if (!scope_name ||
!symtable_enter_block(st, scope_name, FunctionBlock, (void *)e,
e->lineno, e->col_offset)) {
e->lineno, e->col_offset,
e->end_lineno, e->end_col_offset)) {
return 0;
}
if (outermost->is_async) {
@ -1919,9 +1956,11 @@ symtable_handle_comprehension(struct symtable *st, expr_ty e,
(e->kind == SetComp_kind) ? "'yield' inside set comprehension" :
(e->kind == DictComp_kind) ? "'yield' inside dict comprehension" :
"'yield' inside generator expression");
PyErr_SyntaxLocationObject(st->st_filename,
st->st_cur->ste_lineno,
st->st_cur->ste_col_offset + 1);
PyErr_RangedSyntaxLocationObject(st->st_filename,
st->st_cur->ste_lineno,
st->st_cur->ste_col_offset + 1,
st->st_cur->ste_end_lineno,
st->st_cur->ste_end_col_offset + 1);
symtable_exit_block(st);
return 0;
}