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authorPablo Galindo Salgado <Pablogsal@gmail.com>2023-05-20 13:07:05 (GMT)
committerGitHub <noreply@github.com>2023-05-20 13:07:05 (GMT)
commitff7f7316326a19749c5d79f9e44acdbe7d54ac4e (patch)
treef6dac134867ada4b1297bda44c91b6dbe3a4f3bc
parent663c049ff78a299bdf7c1a0444b9900e6d37372d (diff)
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gh-104658: Fix location of unclosed quote error for multiline f-strings (#104660)
-rw-r--r--Lib/test/test_fstring.py16
-rw-r--r--Parser/tokenizer.c7
-rw-r--r--Parser/tokenizer.h1
3 files changed, 21 insertions, 3 deletions
diff --git a/Lib/test/test_fstring.py b/Lib/test/test_fstring.py
index 58e2550..fcb12d2 100644
--- a/Lib/test/test_fstring.py
+++ b/Lib/test/test_fstring.py
@@ -1558,7 +1558,21 @@ x = (
self.assertAllRaise(SyntaxError, "unterminated f-string literal", ['f"', "f'"])
self.assertAllRaise(SyntaxError, "unterminated triple-quoted f-string literal",
['f"""', "f'''"])
-
+ # Ensure that the errors are reported at the correct line number.
+ data = '''\
+x = 1 + 1
+y = 2 + 2
+z = f"""
+sdfjnsdfjsdf
+sdfsdfs{1+
+2} dfigdf {3+
+4}sdufsd""
+'''
+ try:
+ compile(data, "?", "exec")
+ except SyntaxError as e:
+ self.assertEqual(e.text, 'z = f"""')
+ self.assertEqual(e.lineno, 3)
def test_syntax_error_after_debug(self):
self.assertAllRaise(SyntaxError, "f-string: expecting a valid expression after '{'",
[
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index 91ffaba..c5dc9e7 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -1124,7 +1124,7 @@ tok_underflow_interactive(struct tok_state *tok) {
static int
tok_underflow_file(struct tok_state *tok) {
- if (tok->start == NULL) {
+ if (tok->start == NULL && !INSIDE_FSTRING(tok)) {
tok->cur = tok->inp = tok->buf;
}
if (tok->decoding_state == STATE_INIT) {
@@ -2250,6 +2250,7 @@ tok_get_normal_mode(struct tok_state *tok, tokenizer_mode* current_tok, struct t
the_current_tok->f_string_quote_size = quote_size;
the_current_tok->f_string_start = tok->start;
the_current_tok->f_string_multi_line_start = tok->line_start;
+ the_current_tok->f_string_line_start = tok->lineno;
the_current_tok->f_string_start_offset = -1;
the_current_tok->f_string_multi_line_start_offset = -1;
the_current_tok->last_expr_buffer = NULL;
@@ -2580,7 +2581,9 @@ f_string_middle:
tok->cur++;
tok->line_start = current_tok->f_string_multi_line_start;
int start = tok->lineno;
- tok->lineno = tok->first_lineno;
+
+ tokenizer_mode *the_current_tok = TOK_GET_MODE(tok);
+ tok->lineno = the_current_tok->f_string_line_start;
if (current_tok->f_string_quote_size == 3) {
return MAKE_TOKEN(syntaxerror(tok,
diff --git a/Parser/tokenizer.h b/Parser/tokenizer.h
index 5e21718..fd169cf 100644
--- a/Parser/tokenizer.h
+++ b/Parser/tokenizer.h
@@ -53,6 +53,7 @@ typedef struct _tokenizer_mode {
int f_string_raw;
const char* f_string_start;
const char* f_string_multi_line_start;
+ int f_string_line_start;
Py_ssize_t f_string_start_offset;
Py_ssize_t f_string_multi_line_start_offset;