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[src/trunk]: src/usr.bin/make/unit-tests make(1): add test for the special va...



details:   https://anonhg.NetBSD.org/src/rev/ade867502fd0
branches:  trunk
changeset: 943474:ade867502fd0
user:      rillig <rillig%NetBSD.org@localhost>
date:      Fri Sep 04 17:05:39 2020 +0000

description:
make(1): add test for the special variable MAKEFILE

diffstat:

 distrib/sets/lists/tests/mi                  |   4 +-
 usr.bin/make/unit-tests/Makefile             |   3 +-
 usr.bin/make/unit-tests/varname-makefile.exp |   1 +
 usr.bin/make/unit-tests/varname-makefile.mk  |  44 ++++++++++++++++++++++++++++
 4 files changed, 50 insertions(+), 2 deletions(-)

diffs (88 lines):

diff -r 59965e060252 -r ade867502fd0 distrib/sets/lists/tests/mi
--- a/distrib/sets/lists/tests/mi       Fri Sep 04 17:05:09 2020 +0000
+++ b/distrib/sets/lists/tests/mi       Fri Sep 04 17:05:39 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.917 2020/09/04 11:43:50 rillig Exp $
+# $NetBSD: mi,v 1.918 2020/09/04 17:05:39 rillig Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -5092,6 +5092,8 @@
 ./usr/tests/usr.bin/make/unit-tests/varname-make.mk                            tests-usr.bin-tests     compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/varname-make_print_var_on_error.exp                tests-usr.bin-tests     compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/varname-make_print_var_on_error.mk         tests-usr.bin-tests     compattestfile,atf
+./usr/tests/usr.bin/make/unit-tests/varname-makefile.exp                       tests-usr.bin-tests     compattestfile,atf
+./usr/tests/usr.bin/make/unit-tests/varname-makefile.mk                                tests-usr.bin-tests     compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/varname-makeflags.exp                      tests-usr.bin-tests     compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/varname-makeflags.mk                       tests-usr.bin-tests     compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/varname-pwd.exp                            tests-usr.bin-tests     compattestfile,atf
diff -r 59965e060252 -r ade867502fd0 usr.bin/make/unit-tests/Makefile
--- a/usr.bin/make/unit-tests/Makefile  Fri Sep 04 17:05:09 2020 +0000
+++ b/usr.bin/make/unit-tests/Makefile  Fri Sep 04 17:05:39 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.131 2020/09/04 05:23:25 rillig Exp $
+# $NetBSD: Makefile,v 1.132 2020/09/04 17:05:39 rillig Exp $
 #
 # Unit tests for make(1)
 #
@@ -310,6 +310,7 @@
 TESTS+=                varname-empty
 TESTS+=                varname-make
 TESTS+=                varname-make_print_var_on_error
+TESTS+=                varname-makefile
 TESTS+=                varname-makeflags
 TESTS+=                varname-pwd
 TESTS+=                varname-vpath
diff -r 59965e060252 -r ade867502fd0 usr.bin/make/unit-tests/varname-makefile.exp
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.bin/make/unit-tests/varname-makefile.exp      Fri Sep 04 17:05:39 2020 +0000
@@ -0,0 +1,1 @@
+exit status 0
diff -r 59965e060252 -r ade867502fd0 usr.bin/make/unit-tests/varname-makefile.mk
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.bin/make/unit-tests/varname-makefile.mk       Fri Sep 04 17:05:39 2020 +0000
@@ -0,0 +1,44 @@
+# $NetBSD: varname-makefile.mk,v 1.1 2020/09/04 17:05:39 rillig Exp $
+#
+# Tests for the special MAKEFILE variable, which contains the current
+# makefile from the -f command line option.
+#
+# When there are multiple -f options, the variable MAKEFILE is set
+# again for each of these makefiles, before the file is parsed.
+# Including a file via .include does not influence the MAKEFILE
+# variable though.
+
+.if ${MAKEFILE} != "varname-makefile.mk"
+.  error
+.endif
+
+# This variable lives in the "Internal" namespace.
+# TODO: Why does it do that, and what consequences does this have?
+
+# Deleting the variable does not work since this variable does not live in
+# the "Global" namespace but in "Internal", which is kind of a child
+# namespace.
+#
+.undef MAKEFILE
+.if ${MAKEFILE} != "varname-makefile.mk"
+.  error
+.endif
+
+# Overwriting this variable is possible since the "Internal" namespace
+# serves as a fallback for the "Global" namespace (see VarFind).
+#
+MAKEFILE=      overwritten
+.if ${MAKEFILE} != "overwritten"
+.  error
+.endif
+
+# When the overwritten value is deleted, the fallback value becomes
+# visible again.
+#
+.undef MAKEFILE
+.if ${MAKEFILE} != "varname-makefile.mk"
+.  error
+.endif
+
+all:
+       @:;



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