# $Id: evalcall 2413 2010-09-11 17:43:04Z bird $                                        -*-perl-*-
## @file
# $(evalcall var,argN...)
#

#
# Copyright (c) 2008-2010 knut st. osmundsen <bird-kBuild-spamx@anduin.net>
#
# This file is part of kBuild.
#
# kBuild 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.
#
# kBuild 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 kBuild.  If not, see <http://www.gnu.org/licenses/>
#
#

$description = "Tests the $(evalcall ) function";

$details = "A few simple tests, nothing spectacular.";

if ($is_kmk) {

   # TEST #0 - check that the feature is present.
   # --------------------------------------------
   run_make_test('
FUNC = local .RETURN = $2 $1
ifneq ($(evalcall FUNC,a,b),b a)
$(error sub-test 0 failed: $(evalcall FUNC,a,b))
endif

.PHONY: all
all: ; @:
',
'',
'');

   # TEST #1 - the real test.
   # ------------------------
   run_make_test('

FUNC = local .RETURN = $2 $1
ifneq ($(evalcall FUNC,a,b),b a)
$(error sub-test 0 failed)
endif

ADD = local .RETURN = $(expr $1 + $2)
ifneq ($(evalcall ADD,1,2),3)
$(error sub-test 1 failed)
endif

define POP
local words := $(words $($1))
local .RETURN := $(word $(words), $($1))
$1 := $(wordlist 1, $(expr $(words) - 1), $($1))
endef
stack-var = a b c d
ifneq ($(evalcall POP,stack-var),d)
$(error sub-test 2d failed)
endif
ifneq ($(evalcall POP,stack-var),c)
$(error sub-test 2c failed)
endif
ifneq ($(evalcall POP,stack-var),b)
$(error sub-test 2b failed)
endif
ifneq ($(evalcall POP,stack-var),a)
$(error sub-test 2a failed)
endif


# Negative tests:

.RETURN = $2 $1
FUNC =
ifneq ($(evalcall FUNC,a,b),)
$(error sub-test 10 failed)
endif

.RETURN =
FUNC = .RETURN = $2 $1
ifneq ($(evalcall FUNC,a,b),)
$(error sub-test 11 failed)
endif


# Test .ARGC:

FUNC = local .RETURN = $(.ARGC)
ifneq ($(evalcall FUNC,a,b),2)
$(error sub-test 20 failed)
endif
ifneq ($(evalcall FUNC),0)
$(error sub-test 21 failed)
endif
ifneq ($(evalcall FUNC,aasdfasdf),1)
$(error sub-test 22 failed)
endif


.PHONY: all
all: ; @:
',
'',
'');
}


# Indicate that we're done.
1;