vendor/NetBSD/bmake/20201117vendor/NetBSD/bmake

1 files changed, 35 insertions, 0 deletions

diff --git a/unit-tests/varparse-errors.mk b/unit-tests/varparse-errors.mk
new file mode 100644
index 000000000000..42f5b65a728e
--- /dev/null
+++ b/unit-tests/varparse-errors.mk
@@ -0,0 +1,35 @@
+# $NetBSD: varparse-errors.mk,v 1.1 2020/11/08 16:44:47 rillig Exp $
+
+# Tests for parsing and evaluating all kinds of variable expressions.
+#
+# This is the basis for redesigning the error handling in Var_Parse and
+# Var_Subst, collecting typical and not so typical use cases.
+#
+# See also:
+#	VarParseResult
+#	Var_Parse
+#	Var_Subst
+
+PLAIN=		plain value
+
+LITERAL_DOLLAR=	To get a dollar, double $$ it.
+
+INDIRECT=	An ${:Uindirect} value.
+
+REF_UNDEF=	A reference to an ${UNDEF}undefined variable.
+
+ERR_UNCLOSED=	An ${UNCLOSED variable expression.
+
+ERR_BAD_MOD=	An ${:Uindirect:Z} expression with an unknown modifier.
+
+ERR_EVAL=	An evaluation error ${:Uvalue:C,.,\3,}.
+
+# In a conditional, a variable expression that is not enclosed in quotes is
+# expanded using the flags VARE_UNDEFERR and VARE_WANTRES.
+# The variable itself must be defined.
+# It may refer to undefined variables though.
+.if ${REF_UNDEF} != "A reference to an undefined variable."
+.  error
+.endif
+
+all: