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# Copyright 2009-2021 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
# 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 <>.
# This file is part of the gdb testsuite.
load_lib completion-support.exp
# A helper procedure to test location completions restricted by
# class.
proc test_class_complete {class expr name matches} {
global gdb_prompt
set matches [lsort $matches]
set cmd "complete break ${class}::$expr"
set seen {}
gdb_test_multiple $cmd $name {
"break ${class}::main" { fail "$name (saw global symbol)" }
$cmd { exp_continue }
-re "break ${class}::\[^\r\n\]*\r\n" {
set str $expect_out(0,string)
scan $str "break ${class}::%\[^(\]" method
lappend seen $method
-re "$gdb_prompt $" {
set failed ""
foreach got [lsort $seen] have $matches {
if {![string equal $got $have]} {
set failed $have
if {[string length $failed] != 0} {
fail "$name ($failed not found)"
} else {
pass $name
if { [skip_cplus_tests] } { continue }
if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
return -1
# Tests below are about tab-completion, which doesn't work if readline
# library isn't used. Check it first.
if { ![readline_is_used] } {
untested "no tab completion support without readline"
return -1
# Test that completion is restricted by class name (all methods)
test_class_complete Foo "" "complete class methods" \
[list Foo Foofoo get_foo set_foo ~Foo]
test_class_complete Foo F "complete class methods beginning with F" \
[list Foo Foofoo]
# The tests below depend on the current code scope.
set bp_location [gdb_get_line_number "Set breakpoint here" ${srcfile}]
if {![runto "${srcfile}:$bp_location"]} {
perror "test suppressed"
# This also tests inheritance -- completion should only see a single
# "get_foo".
gdb_test "complete p foo1.g" "p foo1\\.get_foo"
# Test inheritance without overriding.
gdb_test "complete p foo1.base" "p foo1\\.base_function_only"
# Test non-completion of constructor names.
gdb_test "complete p foo1.Fo" "p foo1\\.Foofoo"
# Test completion with an anonymous struct.
gdb_test "complete p a.g" "p a\\.get"
with_test_prefix "expression with namespace" {
# Before the scope operator, GDB shows all the symbols whose
# fully-qualified name matches the completion word.
test_gdb_complete_multiple "p " "Test_NS" "" {
# Unlike in linespecs, tab- and complete-command completion work a
# bit differently when completing around the scope operator. The
# matches in the tab-completion case only show the part of the
# symbol after the scope, since ':' is a word break character.
set tab_completion_list {
test_gdb_complete_tab_multiple "p Test_NS:" ":" $tab_completion_list
test_gdb_complete_tab_multiple "p Test_NS::" "" $tab_completion_list
# OTOH, the complete command must show the whole command, with
# qualified symbol displayed as entered by the user.
set cmd_completion_list {
test_gdb_complete_cmd_multiple "p " "Test_NS:" $cmd_completion_list
test_gdb_complete_cmd_multiple "p " "Test_NS::" $cmd_completion_list
# Add a disambiguating character and we get a unique completion.
test_gdb_complete_unique "p Test_NS::f" "p Test_NS::foo"