diff options
Diffstat (limited to 'unit-tests/vardebug.mk')
| -rw-r--r-- | unit-tests/vardebug.mk | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/unit-tests/vardebug.mk b/unit-tests/vardebug.mk new file mode 100644 index 0000000000000..f61df98d50def --- /dev/null +++ b/unit-tests/vardebug.mk @@ -0,0 +1,59 @@ +# $NetBSD: vardebug.mk,v 1.3 2020/08/08 14:28:46 rillig Exp $ +# +# Demonstrates the debugging output for var.c. + +RELEVANT= yes + +VAR= added # VarAdd +VAR= overwritten # Var_Set +.undef VAR # Var_Delete (found) +.undef VAR # Var_Delete (not found) + +# The variable with the empty name cannot be set at all. +${:U}= empty name # Var_Set +${:U}+= empty name # Var_Append + +FROM_CMDLINE= overwritten # Var_Set (ignored) + +VAR= 1 +VAR+= 2 +VAR+= 3 + +.if ${VAR:M[2]} # VarMatch +.endif +.if ${VAR:N[2]} # VarNoMatch (no debug output) +.endif + +.if ${VAR:S,2,two,} # VarGetPattern +.endif + +.if ${VAR:Q} # VarQuote +.endif + +.if ${VAR:tu:tl:Q} # ApplyModifiers +.endif + +# ApplyModifiers, "Got ..." +.if ${:Uvalue:${:UM*e}:Mvalu[e]} +.endif + +.undef ${:UVAR} # Var_Delete + +# When ApplyModifiers results in an error, this appears in the debug log +# as "is error", without surrounding quotes. +.if ${:Uvariable:unknown} +.endif + +# XXX: The error message is "Malformed conditional", which is wrong. +# The condition is syntactically fine, it just contains an undefined variable. +# +# There is a specialized error message for "Undefined variable", but as of +# 2020-08-08, that is not covered by any unit tests. It might even be +# unreachable. +.if ${UNDEFINED} +.endif + +RELEVANT= no + +all: + @: |