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Here are the test cases I used for developing the text expansion feature. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
1.2 KiB
1.2 KiB
SPDX-License-Identifier: GPL-2.0
Shorthand
warning = $(warning-if,y,$(1))
Simply expanded variable.
X := 1 SIMPLE := $(X) X := 2 $(warning,SIMPLE = $(SIMPLE))
Recursively expanded variable.
X := 1 RECURSIVE = $(X) X := 2 $(warning,RECURSIVE = $(RECURSIVE))
Append something to a simply expanded variable.
Y := 3 SIMPLE += $(Y) Y := 4 $(warning,SIMPLE = $(SIMPLE))
Append something to a recursively expanded variable.
Y := 3 RECURSIVE += $(Y) Y := 4 $(warning,RECURSIVE = $(RECURSIVE))
Use += operator to an undefined variable.
This works as a recursively expanded variable.
Y := 3 UNDEFINED_VARIABLE += $(Y) Y := 4 $(warning,UNDEFINED_VARIABLE = $(UNDEFINED_VARIABLE))
You can use variable references for the lefthand side of assignment statement.
X := A Y := B $(X)$(Y) := 5 $(warning,AB = $(AB))
User-defined function.
greeting = $(1), my name is $(2). $(warning,$(greeting,Hello,John))
The number of arguments is not checked for user-defined functions.
If some arguments are optional, it is useful to pass fewer parameters.
$(2) will be blank in this case.
$(warning,$(greeting,Hello))
Unreferenced parameters are just ignored.
$(warning,$(greeting,Hello,John,ignored,ignored))