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authorTom Tromey <tom@tromey.com>2017-09-06 21:41:40 -0600
committerTom Tromey <tom@tromey.com>2017-09-09 13:46:09 -0600
commitc0470d489b47f0bbe57893b31d56d2d4ef945f4c (patch)
treefcc6c9efcc6c13b32df3f6d0c9a73819c8227345 /gdb/mi/mi-cmd-var.c
parentca5909c7de7353d8005bf8fdcc020b8f14cc1603 (diff)
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Use ui_out_emit_list and ui_out_emit_tuple with gdb::optional
This changes a few spots to use ui_out_emit_list and/or ui_out_emit_tuple with gdb::optional, to preserve existing behavior. This allows for the removal of a few more cleanups. ChangeLog 2017-09-09 Tom Tromey <tom@tromey.com> * mi/mi-cmd-var.c (mi_cmd_var_list_children): Use gdb::optional, ui_out_emit_list, ui_out_emit_tuple. (mi_cmd_var_update): Likewise.
Diffstat (limited to 'gdb/mi/mi-cmd-var.c')
-rw-r--r--gdb/mi/mi-cmd-var.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/gdb/mi/mi-cmd-var.c b/gdb/mi/mi-cmd-var.c
index 191e770..8b22b2f 100644
--- a/gdb/mi/mi-cmd-var.c
+++ b/gdb/mi/mi-cmd-var.c
@@ -410,14 +410,15 @@ mi_cmd_var_list_children (const char *command, char **argv, int argc)
if (from < to)
{
- struct cleanup *cleanup_children;
+ /* For historical reasons this might emit a list or a tuple, so
+ we construct one or the other. */
+ gdb::optional<ui_out_emit_tuple> tuple_emitter;
+ gdb::optional<ui_out_emit_list> list_emitter;
if (mi_version (uiout) == 1)
- cleanup_children
- = make_cleanup_ui_out_tuple_begin_end (uiout, "children");
+ tuple_emitter.emplace (uiout, "children");
else
- cleanup_children
- = make_cleanup_ui_out_list_begin_end (uiout, "children");
+ list_emitter.emplace (uiout, "children");
for (ix = from;
ix < to && VEC_iterate (varobj_p, children, ix, child);
++ix)
@@ -426,7 +427,6 @@ mi_cmd_var_list_children (const char *command, char **argv, int argc)
print_varobj (child, print_values, 1 /* print expression */);
}
- do_cleanups (cleanup_children);
}
uiout->field_int ("has_more", varobj_has_more (var, to));
@@ -648,7 +648,6 @@ void
mi_cmd_var_update (const char *command, char **argv, int argc)
{
struct ui_out *uiout = current_uiout;
- struct cleanup *cleanup;
char *name;
enum print_values print_values;
@@ -665,10 +664,15 @@ mi_cmd_var_update (const char *command, char **argv, int argc)
else
print_values = PRINT_NO_VALUES;
+ /* For historical reasons this might emit a list or a tuple, so we
+ construct one or the other. */
+ gdb::optional<ui_out_emit_tuple> tuple_emitter;
+ gdb::optional<ui_out_emit_list> list_emitter;
+
if (mi_version (uiout) <= 1)
- cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
+ tuple_emitter.emplace (uiout, "changelist");
else
- cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist");
+ list_emitter.emplace (uiout, "changelist");
/* Check if the parameter is a "*", which means that we want to
update all variables. */
@@ -693,8 +697,6 @@ mi_cmd_var_update (const char *command, char **argv, int argc)
varobj_update_one (var, print_values, 1 /* explicit */);
}
-
- do_cleanups (cleanup);
}
/* Helper for mi_cmd_var_update(). */