diff options
Diffstat (limited to 'unit-tests/cond-eof.mk')
| -rw-r--r-- | unit-tests/cond-eof.mk | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/unit-tests/cond-eof.mk b/unit-tests/cond-eof.mk new file mode 100644 index 000000000000..08f432bc4593 --- /dev/null +++ b/unit-tests/cond-eof.mk @@ -0,0 +1,20 @@ +# $NetBSD: cond-eof.mk,v 1.2 2020/12/14 20:28:09 rillig Exp $ +# +# Tests for parsing conditions, especially the end of such conditions, which +# are represented as the token TOK_EOF. + +SIDE_EFFECT= ${:!echo 'side effect' 1>&2!} +SIDE_EFFECT2= ${:!echo 'side effect 2' 1>&2!} + +# In the following conditions, ${SIDE_EFFECT} is the position of the first +# parse error. It is always fully evaluated, even if it were not necessary +# to expand the variable expression. This is because these syntax errors are +# an edge case that does not occur during normal operation, therefore there +# is no need to optimize for this case, and it would slow down the common +# case as well. +.if 0 ${SIDE_EFFECT} ${SIDE_EFFECT2} +.endif +.if 1 ${SIDE_EFFECT} ${SIDE_EFFECT2} +.endif +.if (0) ${SIDE_EFFECT} ${SIDE_EFFECT2} +.endif |