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authordmalcolm <dmalcolm@138bc75d-0d04-0410-961f-82ee72b054a4>2016-09-15 23:57:01 +0000
committerdmalcolm <dmalcolm@138bc75d-0d04-0410-961f-82ee72b054a4>2016-09-15 23:57:01 +0000
commitd9020fe61291812489bd4bb954c0c04ac088ac6f (patch)
tree802052306a708cf70c39ab01f29991c7f405d639 /libcpp/include
parentb74250bce94c2415c150a9fb6c43b853d754bfa2 (diff)
downloadgcc-d9020fe61291812489bd4bb954c0c04ac088ac6f.tar.gz
fix-it hints can't contain newlines
I hope to implement newline support within fix-it hints at some point, but currently it's not supported, and leads to misleading diagnostic output, so for now, fail gracefully. gcc/ChangeLog: * diagnostic-show-locus.c (selftest::test_fixit_insert_containing_newline): New function. (selftest::test_fixit_replace_containing_newline): New function. (selftest::diagnostic_show_locus_c_tests): Call the above. libcpp/ChangeLog: * include/line-map.h (class rich_location): Note that newlines aren't supported in fix-it text. * line-map.c (rich_location::add_fixit_insert_before): Reject attempts to add fix-its containing newlines. (rich_location::add_fixit_replace): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240169 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libcpp/include')
-rw-r--r--libcpp/include/line-map.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libcpp/include/line-map.h b/libcpp/include/line-map.h
index 939bfcc5712..747609d4393 100644
--- a/libcpp/include/line-map.h
+++ b/libcpp/include/line-map.h
@@ -1551,6 +1551,8 @@ class fixit_hint;
Attempts to add a fix-it hint within a macro expansion will fail.
+ We do not yet support newlines in fix-it text; attempts to do so will fail.
+
The rich_location API handles these failures gracefully, so that
diagnostics can attempt to add fix-it hints without each needing
extensive checking.