fix: properly handle backslash before multi-line string (#1828)

Co-authored-by: LiuYinCarl <bearcarl@qq.com>
nedbat · Aug 3, 2024 · 9aaa404 · 9aaa404
1 parent 9c50270
commit 9aaa404
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/coverage/phystokens.py b/coverage/phystokens.py
@@ -57,7 +57,15 @@ def _phys_tokens(toks: TokenInfos) -> TokenInfos:
                 if last_ttext.endswith("\\"):
                     inject_backslash = False
                 elif ttype == token.STRING:
-                    if "\n" in ttext and ttext.split("\n", 1)[0][-1] == "\\":
+                    if last_line.endswith(last_ttext+"\\\n"):
+                        # Deal with special cases like such code::
+                        #
+                        #   a = ["aaa",\
+                        #        "bbb \
+                        #        ccc"]
+                        #
+                        pass
+                    elif "\n" in ttext and ttext.split("\n", 1)[0][-1] == "\\":
                         # It's a multi-line string and the first line ends with
                         # a backslash, so we don't need to inject another.
                         inject_backslash = False