gdb/testsuite/gdb.ada/array_of_variant.exp

# Copyright 2020-2022 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/>.

load_lib "ada.exp"
load_lib "gdb-python.exp"

if { [skip_ada_tests] } { return -1 }

standard_ada_testfile p

if [get_compiler_info] {
    return -1
}
set old_gcc [expr [test_compiler_info {gcc-[0-7]-*}]]

proc gdb_test_with_xfail { cmd re re_xfail msg } {
    global scenario old_gcc
    set have_xfail [expr $old_gcc && [string equal "$scenario" "minimal"]]

    gdb_test_multiple $cmd $msg {
	-re -wrap $re  {
	    pass $gdb_test_name
	}
	-re -wrap $re_xfail {
	    if { $have_xfail } {
		# gcc/101633
		setup_xfail *-*-*
	    }
	    fail $gdb_test_name
	}
    }
}

foreach_with_prefix scenario {all minimal} {
    set flags [list debug additional_flags=-fgnat-encodings=$scenario]

    if {[gdb_compile_ada "${srcfile}" "${binfile}" executable $flags] != ""} {
	return -1
    }

    clean_restart ${testfile}

    set bp_location [gdb_get_line_number "START" ${testdir}/p.adb]
    runto "p.adb:$bp_location"

    set v1 "(tag => object, values => (2, 2, 2, 2, 2))"
    set v1_xfail "(tag => object, values => ())"
    set v2 "(tag => unused)"

    set re [string_to_regexp " = ($v1, $v2)"]
    set re_xfail [string_to_regexp " = ($v1_xfail, $v2)"]
    gdb_test_with_xfail "print objects" $re $re_xfail "print entire array"

    set re [string_to_regexp " = $v1"]
    set re_xfail [string_to_regexp " = $v1_xfail"]
    gdb_test_with_xfail "print objects(1)" $re $re_xfail \
	"print first array element"

    set re [string_to_regexp " = ($v1)"]
    set re_xfail [string_to_regexp " = ($v1_xfail)"]
    gdb_test_with_xfail "print objects(1 .. 1)" $re $re_xfail \
	"print first array slice"

    gdb_test "print objects(2)" \
	[string_to_regexp " = $v2"] \
	"print second array element"
    gdb_test "print objects(2 .. 2)" \
	[string_to_regexp " = (2 => $v2)"] \
	"print second array slice"

    # This is only supported for the DWARF encoding.
    if {$scenario == "minimal" && ![skip_python_tests]} {
	gdb_test_no_output \
	    "python o = gdb.parse_and_eval('objects')" \
	    "fetch value for python"
	set re [string_to_regexp "($v1, $v2)"]
	set re_xfail [string_to_regexp "($v1_xfail, $v2)"]
	gdb_test_with_xfail "python print(o)" $re $re_xfail \
	    "python print array"
	set re [string_to_regexp "$v1"]
	set re_xfail [string_to_regexp "$v1_xfail"]
	gdb_test_with_xfail "python print(o\[1\])" $re $re_xfail \
	    "python print first array element"
	gdb_test "python print(o\[2\])" \
	    [string_to_regexp "$v2"] \
	    "python print second array element"
    }

    set av1 "(initial => 0, rest => (tag => unused, cval => 88 'X'))"
    set av2 "(initial => 0, rest => (tag => object, ival => 88))"
    set full "($av1, $av2)"

    gdb_test "print another_array(1)" " = [string_to_regexp $av1]" \
	"print first element of another_array"
    gdb_test "print another_array(2)" " = [string_to_regexp $av2]" \
	"print second element of another_array"
    gdb_test "print another_array" " = [string_to_regexp $full]" \
	"print another_array"
}