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gh-120343: Fix column offsets of multiline tokens in tokenize (#120391)

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Lysandros Nikolaou 2024-06-12 20:52:55 +02:00 • committed by GitHub
parent 127c1d2771
commit 4b5d3e0e72
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2 changed files with 24 additions and 4 deletions
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14
Python/Python-tokenize.c
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@ -215,6 +215,7 @@ tokenizeriter_next(tokenizeriterobject *it)
const char *line_start = ISSTRINGLIT(type) ? it->tok->multi_line_start : it->tok->line_start;
PyObject* line = NULL;
int line_changed = 1;
if (it->tok->tok_extra_tokens && is_trailing_token) {
line = PyUnicode_FromString("");
} else {
@ -229,12 +230,11 @@ tokenizeriter_next(tokenizeriterobject *it)
Py_XDECREF(it->last_line);
line = PyUnicode_DecodeUTF8(line_start, size, "replace");
it->last_line = line;
if (it->tok->lineno != it->last_end_lineno) {
it->byte_col_offset_diff = 0;
}
it->byte_col_offset_diff = 0;
} else {
// Line hasn't changed so we reuse the cached one.
line = it->last_line;
line_changed = 0;
}
}
if (line == NULL) {
@ -252,7 +252,13 @@ tokenizeriter_next(tokenizeriterobject *it)
Py_ssize_t byte_offset = -1;
if (token.start != NULL && token.start >= line_start) {
byte_offset = token.start - line_start;
col_offset = byte_offset - it->byte_col_offset_diff;
if (line_changed) {
col_offset = _PyPegen_byte_offset_to_character_offset_line(line, 0, byte_offset);
it->byte_col_offset_diff = byte_offset - col_offset;
}
else {
col_offset = byte_offset - it->byte_col_offset_diff;
}
}
if (token.end != NULL && token.end >= it->tok->line_start) {
Py_ssize_t end_byte_offset = token.end - it->tok->line_start;