1 files changed, 49 insertions, 0 deletions
diff --git a/tests/frame/save-restore.make b/tests/frame/save-restore.make
new file mode 100644
index 0000000..b81a087
--- /dev/null
+++ b/tests/frame/save-restore.make
@@ -0,0 +1,49 @@
+
+include $(dir $(lastword $(MAKEFILE_LIST)))../../build/frame.make
+
+define set-recursive
+$1 = $2
+endef
+
+define set-simple
+$1 := $2
+endef
+
+define save
+$(eval $(if $(filter simple,$(flavor $1))\
+,$(call set-simple,_$1,$(value $1))\
+,$(call set-recursive,_$1,$(value $1))))
+endef
+
+define restore
+$(eval $(if $(filter simple,$(flavor _$1))\
+,$(call set-simple,$1,$(value _$1))\
+,$(call set-recursive,$1,$(value _$1))))
+endef
+
+save = $(call frame-save,$1)
+restore = $(call frame-restore,$1)
+
+r = $(r2)
+
+s := simple
+
+$(call save,r)
+$(call save,s)
+
+#$(warning _r: $(value _r))
+#$(warning _s: $(value _s))
+
+r := foo
+s = bar
+
+$(call restore,r)
+$(call restore,s)
+
+r2 := recursive
+
+$(warning r: $r)
+$(warning s: $s)
+
+.PHONY: all
+all:;@: