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bpo-40334: Fix error location upon parsing an invalid string literal by lysnikolaou · Pull Request #19962 · python/cpython · GitHub
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bpo-40334: Fix error location upon parsing an invalid string literal #19962

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Merged
pablogsal merged 5 commits into from
May 7, 2020
Merged

bpo-40334: Fix error location upon parsing an invalid string literal #19962

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bpo-40334: Fix error location upon parsing an invalid string literal
lysnikolaou May 6, 2020
938f8e1
Update test_cmd_line_script as well
lysnikolaou May 6, 2020
8b5f2e8
Call PyBytes_AsString in _PyPegen_parsestr instead of _PyPegen_concat…
lysnikolaou May 6, 2020
86b88a3
Add a new field `known_err_token` to the `Parser` struct that has
lysnikolaou May 6, 2020
532a6c2
Add assertion for column number
lysnikolaou May 6, 2020
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Call PyBytes_AsString in _PyPegen_parsestr instead of _PyPegen_concat… 
…enate_strings
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@lysnikolaou
lysnikolaou committed May 6, 2020
commit 8b5f2e8258b835cfed1b39fc5dd77686c6bf0e54
7 changes: 6 additions & 1 deletion Parser/pegen/parse_string.c
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Expand Up @@ -153,9 +153,14 @@ decode_bytes_with_escapes(Parser *p, const char *s, Py_ssize_t len, Token *t)
If the string is an f-string, set *fstr and *fstrlen to the unparsed
string object. Return 0 if no errors occurred. */
int
_PyPegen_parsestr(Parser *p, const char *s, int *bytesmode, int *rawmode, PyObject **result,
_PyPegen_parsestr(Parser *p, int *bytesmode, int *rawmode, PyObject **result,
const char **fstr, Py_ssize_t *fstrlen, Token *t)
{
const char *s = PyBytes_AsString(t->bytes);
if (s == NULL) {
return -1;
}

size_t len;
int quote = Py_CHARMASK(*s);
int fmode = 0;
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4 changes: 2 additions & 2 deletions Parser/pegen/parse_string.h
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Expand Up @@ -34,8 +34,8 @@ typedef struct {
} FstringParser;

void _PyPegen_FstringParser_Init(FstringParser *);
int _PyPegen_parsestr(Parser *, const char *, int *, int *, PyObject **,
const char **, Py_ssize_t *, Token *);
int _PyPegen_parsestr(Parser *, int *, int *, PyObject **,
const char **, Py_ssize_t *, Token *);
int _PyPegen_FstringParser_ConcatFstring(Parser *, FstringParser *, const char **,
const char *, int, int, Token *, Token *,
Token *);
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7 changes: 1 addition & 6 deletions Parser/pegen/pegen.c
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Expand Up @@ -1972,12 +1972,7 @@ _PyPegen_concatenate_strings(Parser *p, asdl_seq *strings)
const char *fstr;
Py_ssize_t fstrlen = -1;

char *this_str = PyBytes_AsString(t->bytes);
if (!this_str) {
goto error;
}

if (_PyPegen_parsestr(p, this_str, &this_bytesmode, &this_rawmode, &s, &fstr, &fstrlen, t) != 0) {
if (_PyPegen_parsestr(p, &this_bytesmode, &this_rawmode, &s, &fstr, &fstrlen, t) != 0) {
goto error;
}

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