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-rw-r--r--lib/stdlib/src/erl_pp.erl17
1 files changed, 14 insertions, 3 deletions
diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl
index d30cd508c1..6068afb293 100644
--- a/lib/stdlib/src/erl_pp.erl
+++ b/lib/stdlib/src/erl_pp.erl
@@ -51,6 +51,15 @@
%-define(DEBUG, true).
-ifdef(DEBUG).
+-define(FORM_TEST(T),
+ _ = case T of
+ {eof, _Line} -> ok;
+ {warning, _W} -> ok;
+ {error, _E} -> ok;
+ _ -> ?TEST(T)
+ end).
+-define(EXPRS_TEST(L),
+ [?TEST(E) || E <- L]).
-define(TEST(T),
%% Assumes that erl_anno has been compiled with DEBUG=true.
%% erl_pp does not use the annoations, but test it anyway.
@@ -62,6 +71,8 @@
erlang:error(badarg, [T])
end).
-else.
+-define(FORM_TEST(T), ok).
+-define(EXPRS_TEST(T), ok).
-define(TEST(T), ok).
-endif.
@@ -80,7 +91,7 @@ form(Thing) ->
Options :: options()).
form(Thing, Options) ->
- ?TEST(Thing),
+ ?FORM_TEST(Thing),
State = state(Options),
frmt(lform(Thing, options(Options)), State).
@@ -124,7 +135,7 @@ guard(Gs) ->
Options :: options()).
guard(Gs, Options) ->
- ?TEST(Gs),
+ ?EXPRS_TEST(Gs),
frmt(lguard(Gs, options(Options)), state(Options)).
-spec(exprs(Expressions) -> io_lib:chars() when
@@ -146,7 +157,7 @@ exprs(Es, Options) ->
Options :: options()).
exprs(Es, I, Options) ->
- ?TEST(Es),
+ ?EXPRS_TEST(Es),
frmt({seq,[],[],[$,],lexprs(Es, options(Options))}, I, state(Options)).
-spec(expr(Expression) -> io_lib:chars() when