[Mono-bugs] [Bug 34597][Wis] New - problems with pp-expressions handling

bugzilla-daemon@rocky.ximian.com bugzilla-daemon@rocky.ximian.com
25 Nov 2002 23:09:52 -0000

Please do not reply to this email- if you want to comment on the bug, go to the
URL shown below and enter your comments there.

Changed by avd@openlinksw.com.


--- shadow/34597	Mon Nov 25 18:09:52 2002
+++ shadow/34597.tmp.25046	Mon Nov 25 18:09:52 2002
@@ -0,0 +1,44 @@
+Bug#: 34597
+Product: Mono/MCS
+Version: unspecified
+OS: All
+OS Details: 
+Status: NEW   
+Priority: Wishlist
+Component: Misc
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: avd@openlinksw.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+Summary: problems with pp-expressions handling
+Description of Problem:
+There are problems compiling code with conditional compilation 
+expressions containing || or && operators.
+Steps to reproduce the problem:
+mcs the folowing code:
+#if true || true
+#if false && false
+Actual Results:
+a.cs(2) error CS1517: Invalid pre-processor directive
+a.cs(4) error CS1517: Invalid pre-processor directive
+Compilation failed: 2 error(s), 0 warnings
+Additional Information:
+It looks like the errors occur in the Tokenizer.eval() method in the cc-
+tokenizer.cs file. It checks if after processing the expressions no more 
+characters are left. But the pp_expr()  and pp_and() methods short-
+circuit the expression evaluation and may leave some parts of it.