--- /dev/null
+# Copyright 2022 Free Software Foundation, Inc.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# The purpose of this test-case is to test the cond_wrap proc.
+
+# Proc that temporarily sets global variable a to 6, and executes BODY.
+# Note that normally a wrapper needs to guarantee that the restore is executed
+# even if executing body throws an error, but we don't need to bother with this
+# for this test-case.
+proc wrap { body } {
+ global a
+
+ # Save a.
+ set save_a $a
+
+ set a 6
+ uplevel 1 $body
+
+ # Restore a.
+ set a $save_a
+}
+
+# Set initial value of global variable a.
+set a 5
+
+# Verify values of global variable a for cond == 0 and cond == 1.
+foreach_with_prefix cond {0 1} {
+ cond_wrap $cond wrap {
+ gdb_assert {[expr $a - $cond] == 5} "value in conditional wrap"
+ }
+ gdb_assert {$a == 5} "value after conditional wrap"
+}
exit 2
}
+# Execute BODY, if COND wrapped in proc WRAP.
+# Instead of writing the verbose and repetitive:
+# if { $cond } {
+# wrap $body
+# } else {
+# $body
+# }
+# we can use instead:
+# cond_wrap $cond wrap $body
+
+proc cond_wrap { cond wrap body } {
+ if { $cond } {
+ $wrap {
+ uplevel 1 $body
+ }
+ } else {
+ uplevel 1 $body
+ }
+}
+
# Add VAR_ID=VAL to ENV_VAR, unless ENV_VAR already contains a VAR_ID setting.
proc set_sanitizer_default { env_var var_id val } {
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