mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-22 17:55:18 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

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
Download patch file Download diff file Expand all files Collapse all files

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)
{