# Copyright 2017-2021 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
# 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/>.

# This file is part of the gdb testsuite.

# Test ABI tag support in linespecs.

load_lib completion-support.exp

standard_testfile cpls-abi-tag.cc

if {[prepare_for_testing "failed to prepare" $testfile \
	 [list $srcfile] {c++ debug}]} {
    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
}

gdb_test_no_output "set max-completions unlimited"

# Check that the explicit location completer manages to find the next
# option name after a -function option, when the -function's argument
# is a function with an ABI tag.

proc check_explicit_skips_function_argument {function} {
    test_gdb_complete_unique \
	"b -function $function -sour" \
	"b -function $function -source"
}

# The ABI tag tests.

proc_with_prefix test_abi_tag {} {
    with_test_prefix "completion" {
	foreach cmd_prefix {"b" "b -function"} {
	    # Complete all prefixes between "_funcio" and the full
	    # prototype.  The ABI tag is not considered for actual
	    # completion.

	    with_test_prefix "skip tag" {
		# set location "test_abi_tag_function\[abi:tag1\](int)"
		set location "test_abi_tag_function(int)"
		set line "$cmd_prefix $location"
		set start [index_after "_functio" $line]
		test_complete_prefix_range $line $start
	    }

	    # Now the same, but start completing at the [.  In that case,
	    # GDB considers the ABI tag as part of actual completion.
	    with_test_prefix "at tag" {
		set location "test_abi_tag_function\[abi:tag1\](int)"
		set line "$cmd_prefix $location"
		set start [index_after "_function" $line]
		test_complete_prefix_range $line $start
	    }

	    # Same, but with extra spaces.  Note that the original spaces in
	    # the input line are preserved after completion.

	    with_test_prefix "spaces" {
		test_gdb_complete_unique \
		    "$cmd_prefix test_abi_tag_function \[abi:tag1\] (" \
		    "$cmd_prefix test_abi_tag_function \[abi:tag1\] (int)"

		test_gdb_complete_unique \
		    "$cmd_prefix test_abi_tag_function \[abi:tag1\] ( int " \
		    "$cmd_prefix test_abi_tag_function \[abi:tag1\] ( int )"
	    }
	}
    }

    with_test_prefix "set breakpoints" {
	foreach cmd_prefix {"b" "b -function"} {
	    # Test setting breakpoints.  If the symbol name has an ABI
	    # tag, but the input linespec doesn't, then the ABI tag in the
	    # symbol name is ignored.
	    set linespec_list {
		"test_abi_tag_function"
		"test_abi_tag_function[abi:tag1]"
		"test_abi_tag_function[abi:tag1](int)"
		"test_abi_tag_function [abi:tag1]"
		"test_abi_tag_function [abi:tag1] ( int )"
		"test_abi_tag_function(int)"
		"test_abi_tag_function (int)"
		"test_abi_tag_function ( int )"
	    }
	    foreach linespec $linespec_list {
		check_bp_locations_match_list \
		    "$cmd_prefix $linespec" [list $location]
	    }
	}
    }

    with_test_prefix "set breakpoints wrong ABI tag" {
	foreach cmd_prefix {"b" "b -function"} {
	    # Test setting breakpoints with the wrong ABI tag.  Should
	    # fail to create the breakpoints.  Completion should not find
	    # any match either.
	    set linespec_list {
		"test_abi_tag_function[abi:tag2]"
		"test_abi_tag_function[abi:tag2](int)"
		"test_abi_tag_function [abi:tag2]"
		"test_abi_tag_function [abi:tag2] ( int )"
	    }
	    foreach linespec $linespec_list {
		check_setting_bp_fails "$cmd_prefix $linespec"
		test_gdb_complete_none "$cmd_prefix $linespec"
	    }

	}
    }

    # Test completion of overloaded functions with ABI tags.
    with_test_prefix "completion of overloaded functions" {
	foreach cmd_prefix {"b" "b -function"} {
	    set completion_list {
		"test_abi_tag_ovld_function[abi:tag1]()"
		"test_abi_tag_ovld_function[abi:tag1](int)"
	    }

	    # If the input string does not include the ABI tag, then
	    # actual completion ignores it.
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_ovld_f" "unction(" \
		$completion_list

	    # Otherwise, it's considered.
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_ovld_function\[" "abi:tag1\](" \
		$completion_list

	}
    }

    # Test setting breakpoints on overloaded functions with ABI tags.
    with_test_prefix "breakpoints on overloaded functions" {
	foreach cmd_prefix {"b" "b -function"} {
	    set completion_list {
		"test_abi_tag_ovld_function[abi:tag1]()"
		"test_abi_tag_ovld_function[abi:tag1](int)"
	    }
	    set location_list {
		"test_abi_tag_ovld_function"
		"test_abi_tag_ovld_function[abi:tag1]"
	    }
	    foreach linespec $location_list {
		check_bp_locations_match_list \
		    "$cmd_prefix $linespec" $completion_list
	    }

	}
    }

    with_test_prefix "completion of overloaded functions different abi" {
	foreach cmd_prefix {"b" "b -function"} {
	    # Test completion of overloaded functions with ABI tags.
	    set completion_list {
		"test_abi_tag_ovld2_function()"
		"test_abi_tag_ovld2_function[abi:tag1](short)"
		"test_abi_tag_ovld2_function[abi:tag2](int)"
		"test_abi_tag_ovld2_function[abi:tag2](long)"
	    }

	    # If the input string does not include the ABI tag, then
	    # actual completion ignores it.
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_ovld2_f" "unction(" \
		$completion_list

	    # Otherwise, it's considered.  Match stops at the part of
	    # the tag that diverges, and the completion list only
	    # shows matches with ABI tags.
	    set completion_list {
		"test_abi_tag_ovld2_function[abi:tag1](short)"
		"test_abi_tag_ovld2_function[abi:tag2](int)"
		"test_abi_tag_ovld2_function[abi:tag2](long)"
	    }
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_ovld2_function\[" "abi:tag" \
		$completion_list

	    # If you disambiguate, matches include only locations for
	    # the specified tag.
	    set completion_list {
		"test_abi_tag_ovld2_function[abi:tag2](int)"
		"test_abi_tag_ovld2_function[abi:tag2](long)"
	    }
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_ovld2_function\[abi:tag2" "\](" \
		$completion_list

	    test_gdb_complete_unique \
		"$cmd_prefix test_abi_tag_ovld2_function\[abi:tag1" \
		"$cmd_prefix test_abi_tag_ovld2_function\[abi:tag1\](short)"
	}
    }

    with_test_prefix "completion of struct prefixes with tags" {
	foreach cmd_prefix {"b" "b -function"} {
	    # Test completion of methods of structs with ABI tags.
	    set completion_list {
		"test_abi_tag_struct[abi:tag1]::test_abi_tag_struct[abi:tag2]()"
		"test_abi_tag_struct[abi:tag1]::~test_abi_tag_struct[abi:tag2]()"
	    }

	    # If the input string does not include the ABI tag, then
	    # actual completion ignores it.
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_struc" "t::" \
		$completion_list

	    # Otherwise, it's considered.
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_struct\[" "abi:tag1\]::" \
		$completion_list

	    # Mix and match different abi tag positions.
	    test_gdb_complete_unique \
		"$cmd_prefix test_abi_tag_struct::t" \
		"$cmd_prefix test_abi_tag_struct::test_abi_tag_struct()"

	    test_gdb_complete_unique \
		"$cmd_prefix test_abi_tag_struct\[abi:tag1\]::t" \
		"$cmd_prefix test_abi_tag_struct\[abi:tag1\]::test_abi_tag_struct()"

	    test_gdb_complete_unique \
		"$cmd_prefix test_abi_tag_struct\[abi:tag1\]::test_abi_tag_struct\[" \
		"$cmd_prefix test_abi_tag_struct\[abi:tag1\]::test_abi_tag_struct\[abi:tag2\]()"
	}
    }

    with_test_prefix "abi tag in parameters" {
	foreach cmd_prefix {"b" "b -function"} {
	    # Complete all prefixes between "_funcio" and the full
	    # prototype.  The ABI tag is not considered for actual
	    # completion.

	    set completion_list {
		"test_abi_tag_in_params(abi_tag_param_struct1[abi:tag2])"
		"test_abi_tag_in_params(abi_tag_param_struct1[abi:tag2], abi_tag_param_struct2[abi:tag2])"
	    }
	    # If the input string does not include the ABI tag, then
	    # actual completion ignores it.
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_in_para" "ms(abi_tag_param_struct1" \
		$completion_list

	    # If OTOH the input string includes the ABI tag, then it
	    # is considered.
	    test_gdb_complete_multiple \
		"$cmd_prefix " "test_abi_tag_in_params(abi_tag_param_struct1\[ab" "i:tag2\]"\
		$completion_list

	    set location_list {
		"test_abi_tag_in_params(abi_tag_param_struct1[abi:tag2], abi_tag_param_struct2[abi:tag2])"
	    }

	    set tags {"" "\[abi:tag2\]"}
	    foreach tag1 $tags {
		foreach tag2 $tags {
		    set linespec "test_abi_tag_in_params(abi_tag_param_struct1${tag1}, abi_tag_param_struct2${tag2})"
		    check_bp_locations_match_list \
			"$cmd_prefix $linespec" $location_list
		}
	    }
	}
    }

    # Check that the explicit location completer manages to find the
    # option name after -function, when the -function's argument is a
    # function with an ABI tag.
    check_explicit_skips_function_argument \
	"test_abi_tag_function\[abi:unknown\](int)"
}

test_abi_tag