diff options
| author | David Malcolm <dmalcolm@redhat.com> | 2017-06-20 10:40:38 +0000 |
|---|---|---|
| committer | David Malcolm <dmalcolm@gcc.gnu.org> | 2017-06-20 10:40:38 +0000 |
| commit | c7a980b80b3a46ad24940269f6b85a75cdb94a60 (patch) | |
| tree | fe86d10819506cdb8f17e6172d8ed766eb12c2fa /libcpp/include | |
| parent | ad2f2a35d33ea79f95b70f8d96ee1445fabed402 (diff) | |
| download | gcc-c7a980b80b3a46ad24940269f6b85a75cdb94a60.zip gcc-c7a980b80b3a46ad24940269f6b85a75cdb94a60.tar.gz gcc-c7a980b80b3a46ad24940269f6b85a75cdb94a60.tar.bz2 | |
Prevent fix-it hints from affecting more than one line
Attempts to apply a removal or replacement fix-it hint to a source
range that covers multiple lines currently lead to nonsensical
results from the printing code in diagnostic-show-locus.c.
We were already filtering them out in edit-context.c (leading
to -fdiagnostics-generate-patch not generating any output for
the whole TU).
Reject attempts to add such fix-it hints within rich_location,
fixing the diagnostic-show-locus.c issue.
gcc/ChangeLog:
* diagnostic-show-locus.c
(selftest::test_fixit_deletion_affecting_newline): New function.
(selftest::diagnostic_show_locus_c_tests): Call it.
libcpp/ChangeLog:
* include/line-map.h (class rich_location): Document that attempts
to delete or replace a range *affecting* multiple lines will fail.
* line-map.c (rich_location::maybe_add_fixit): Implement this
restriction.
From-SVN: r249403
Diffstat (limited to 'libcpp/include')
| -rw-r--r-- | libcpp/include/line-map.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libcpp/include/line-map.h b/libcpp/include/line-map.h index be3041d..f5c19e3 100644 --- a/libcpp/include/line-map.h +++ b/libcpp/include/line-map.h @@ -1556,6 +1556,8 @@ class fixit_hint; inserting at the start of a line, and finishing with a newline (with no interior newline characters). Other attempts to add fix-it hints containing newline characters will fail. + Similarly, attempts to delete or replace a range *affecting* multiple + lines will fail. The rich_location API handles these failures gracefully, so that diagnostics can attempt to add fix-it hints without each needing |