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| author | Pedro Alves <palves@redhat.com> | 2019-05-30 20:40:12 +0100 |
|---|---|---|
| committer | Pedro Alves <palves@redhat.com> | 2019-06-04 22:52:41 +0100 |
| commit | b099b8390d1988c5cd8e206637c8a48ee910ac2d (patch) | |
| tree | c7be124ced5af50318aa60c4ba2ea521860dad6e | |
| parent | 0918ebba4bacc0f7d7795b932331a126d15acb72 (diff) | |
| download | binutils-gdb-b099b8390d1988c5cd8e206637c8a48ee910ac2d.tar.gz | |
Fix latent bug with custom word point completers
Completion routines that use a custom word point, and that then
recurse into complete_line (e.g., if we make "thread apply" a custom
word point completer, and complete on the command passed as argument),
we stumble on this latent bug:
(gdb) thread apply all pri[TAB]
(gdb) thread apply all priprint
The problem is that there's a spot in complete_line_internal_1 that
rewinds the completion word but does not reflect that change in the
custom word point in the tracker. This patch fixes it.
gdb/ChangeLog:
yyyy-mm-dd Pedro Alves <palves@redhat.com>
* completer.c (complete_line_internal_1): Rewind completion word
point.
(completion_tracker::advance_custom_word_point_by): Change
parameter type to int.
* completer.h (completion_tracker::advance_custom_word_point_by):
Likewise.
| -rw-r--r-- | gdb/completer.c | 5 | ||||
| -rw-r--r-- | gdb/completer.h | 2 |
2 files changed, 5 insertions, 2 deletions
diff --git a/gdb/completer.c b/gdb/completer.c index 03d0d0e5dbd..5dd9a99f2a2 100644 --- a/gdb/completer.c +++ b/gdb/completer.c @@ -1403,6 +1403,9 @@ complete_line_internal_1 (completion_tracker &tracker, break; } + /* Move the custom word point back too. */ + tracker.advance_custom_word_point_by (q - p); + if (reason != handle_brkchars) complete_on_cmdlist (result_list, tracker, q, word, ignore_help_classes); @@ -1972,7 +1975,7 @@ completion_tracker::recompute_lowest_common_denominator /* See completer.h. */ void -completion_tracker::advance_custom_word_point_by (size_t len) +completion_tracker::advance_custom_word_point_by (int len) { m_custom_word_point += len; } diff --git a/gdb/completer.h b/gdb/completer.h index 38a0132ca4d..27371b63a57 100644 --- a/gdb/completer.h +++ b/gdb/completer.h @@ -357,7 +357,7 @@ public: { m_custom_word_point = point; } /* Advance the custom word point by LEN. */ - void advance_custom_word_point_by (size_t len); + void advance_custom_word_point_by (int len); /* Whether to tell readline to skip appending a whitespace after the completion. See m_suppress_append_ws. */ |