diff options
Diffstat (limited to 'contrib/bmake/unit-tests/directive-for-errors.mk')
| -rw-r--r-- | contrib/bmake/unit-tests/directive-for-errors.mk | 57 |
1 files changed, 38 insertions, 19 deletions
diff --git a/contrib/bmake/unit-tests/directive-for-errors.mk b/contrib/bmake/unit-tests/directive-for-errors.mk index 602ecbf32e4e..1bd4f31d383a 100644 --- a/contrib/bmake/unit-tests/directive-for-errors.mk +++ b/contrib/bmake/unit-tests/directive-for-errors.mk @@ -1,45 +1,54 @@ -# $NetBSD: directive-for-errors.mk,v 1.3 2021/04/04 10:13:09 rillig Exp $ +# $NetBSD: directive-for-errors.mk,v 1.10 2024/04/20 10:18:55 rillig Exp $ # # Tests for error handling in .for loops. + # A .for directive must be followed by whitespace, everything else results # in a parse error. +# expect+1: Unknown directive "fori" .fori in 1 2 3 -. warning ${i} +. warning <${i}> .endfor +# expect-2: warning: <> +# expect-2: for-less endfor + # A slash is not whitespace, therefore this is not parsed as a .for loop. # # XXX: The error message is misleading though. As of 2020-12-31, it says -# "Unknown directive "for"", but that directive is actually known. This is +# 'Unknown directive "for"', but that directive is actually known. This is # because ForEval does not detect the .for loop as such, so parsing # continues in ParseLine > ParseDependencyLine > ParseDependency > # ParseDependencyTargets > ParseErrorNoDependency, and there the directive # name is parsed a bit differently. +# expect+1: Unknown directive "for" .for/i in 1 2 3 -. warning ${i} +. warning <${i}> .endfor +# expect-2: warning: <> +# expect-2: for-less endfor -# As of 2020-12-31, the variable name can be an arbitrary word, it just needs -# to be separated by whitespace. Even '$' and '\' are valid variable names, -# which is not useful in practice. -# -# The '$$' is not replaced with the values '1' or '3' from the .for loop, -# instead it is kept as-is, and when the .info directive expands its argument, -# each '$$' gets replaced with a single '$'. The "long variable expression" -# ${$} gets replaced though, even though this would be a parse error everywhere -# outside a .for loop. + +# Before for.c 1.173 from 2023-05-08, the variable name could be an arbitrary +# word, it only needed to be separated by whitespace. Even '$' and '\' were +# valid variable names, which was not useful in practice. # -# The '\' on the other hand is treated as a normal variable name. +# The '$$' was not replaced with the values '1' or '3' from the .for loop, +# instead it was kept as-is, and when the .info directive expanded its +# argument, each '$$' got replaced with a single '$'. The "long +# expression" ${$} got replaced though, even though this would be a parse +# error everywhere outside a .for loop. ${:U\$}= dollar # see whether the "variable" '$' is local ${:U\\}= backslash # see whether the "variable" '\' is local +# expect+1: invalid character '$' in .for loop variable name .for $ \ in 1 2 3 4 . info Dollar $$ ${$} $($) and backslash $\ ${\} $(\). .endfor # If there are no variables, there is no point in expanding the .for loop -# since this would end up in an endless loop, each time consuming 0 of the -# 3 values. +# since this would end up in an endless loop, consuming 0 of the 3 values in +# each iteration. +# expect+1: no iteration variables in for .for in 1 2 3 # XXX: This should not be reached. It should be skipped, as already done # when the number of values is not a multiple of the number of variables, @@ -47,29 +56,39 @@ ${:U\\}= backslash # see whether the "variable" '\' is local . warning Should not be reached. .endfor + # There are 3 variables and 5 values. These 5 values cannot be split evenly # among the variables, therefore the loop is not expanded at all, it is -# rather skipped. +# skipped instead. +# expect+1: Wrong number of words (5) in .for substitution list with 3 variables .for a b c in 1 2 3 4 5 . warning Should not be reached. .endfor + # The list of values after the 'in' may be empty, no matter if this emptiness -# comes from an empty expansion or even from a syntactically empty line. +# comes from an expanded expression or from a syntactically empty line. .for i in . info Would be reached if there were items to loop over. .endfor + # A missing 'in' should parse the .for loop but skip the body. -.for i : k +# expect+1: missing `in' in for +.for i over k # XXX: As of 2020-12-31, this line is reached once. . warning Should not be reached. .endfor + # A malformed modifier should be detected and skip the body of the loop. # # XXX: As of 2020-12-31, Var_Subst doesn't report any errors, therefore # the loop body is expanded as if no error had happened. +# expect+1: while evaluating "${:U3:Z} 4": Unknown modifier "Z" .for i in 1 2 ${:U3:Z} 4 . warning Should not be reached. .endfor +# expect-2: warning: Should not be reached. +# expect-3: warning: Should not be reached. +# expect-4: warning: Should not be reached. |