Module Name: src Committed By: rillig Date: Thu Jul 2 12:37:18 UTC 2020
Modified Files: src/usr.bin/make/unit-tests: cond-short.exp cond-short.mk Log Message: make(1): demonstrate another unintended variable evaluation To generate a diff of this commit: cvs rdiff -u -r1.4 -r1.5 src/usr.bin/make/unit-tests/cond-short.exp cvs rdiff -u -r1.3 -r1.4 src/usr.bin/make/unit-tests/cond-short.mk Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/usr.bin/make/unit-tests/cond-short.exp diff -u src/usr.bin/make/unit-tests/cond-short.exp:1.4 src/usr.bin/make/unit-tests/cond-short.exp:1.5 --- src/usr.bin/make/unit-tests/cond-short.exp:1.4 Thu Jul 2 12:34:30 2020 +++ src/usr.bin/make/unit-tests/cond-short.exp Thu Jul 2 12:37:18 2020 @@ -3,6 +3,7 @@ expected and exists expected and empty expected U23 condition expected VAR23 +unexpected M pattern expected or expected or exists expected or empty Index: src/usr.bin/make/unit-tests/cond-short.mk diff -u src/usr.bin/make/unit-tests/cond-short.mk:1.3 src/usr.bin/make/unit-tests/cond-short.mk:1.4 --- src/usr.bin/make/unit-tests/cond-short.mk:1.3 Thu Jul 2 10:36:58 2020 +++ src/usr.bin/make/unit-tests/cond-short.mk Thu Jul 2 12:37:18 2020 @@ -1,4 +1,4 @@ -# $NetBSD: cond-short.mk,v 1.3 2020/07/02 10:36:58 rillig Exp $ +# $NetBSD: cond-short.mk,v 1.4 2020/07/02 12:37:18 rillig Exp $ # # Demonstrates that in conditions, the right-hand side of an && or || # is only evaluated if it can actually influence the result. @@ -27,8 +27,8 @@ .if 1 && empty(${echo "expected and empty" 1>&2 :L:sh}) .endif -# FIXME: "VAR U11" must not be evaluated. -# The whole !empty condition must only be parsed and then discarded. +# "VAR U11" is not evaluated; it was evaluated before 2020-07-02. +# The whole !empty condition is only parsed and then discarded. VAR= ${VAR${:U11${echo "unexpected VAR U11" 1>&2 :L:sh}}} VAR13= ${VAR${:U12${echo "unexpected VAR13" 1>&2 :L:sh}}} .if 0 && !empty(VAR${:U13${echo "unexpected U13 condition" 1>&2 :L:sh}}) @@ -39,6 +39,10 @@ VAR23= ${VAR${:U22${echo "expected VAR .if 1 && !empty(VAR${:U23${echo "expected U23 condition" 1>&2 :L:sh}}) .endif +# FIXME: The :M modifier must only be parsed, not evaluated. +.if 0 && !empty(VAR:M${:U${echo "unexpected M pattern" 1>&2 :L:sh}}) +.endif + # The || operator. .if 1 || ${echo "unexpected or" 1>&2 :L:sh}