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Problem with Boost foreach

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T O P I C R E V I E W
xxluda	Posted - Feb 19 2009 : 08:23:18 AM Hello We're using boost foreach macros in our projects, but Visual Assist doesn't handle it well. In StdAfx.h we have : #include <boost/foreach.hpp> #define foreach BOOST_FOREACH And in code we have for example : std::list<stObjectInfo> &lstObjs = ...; foreach ( stObjectInfo &objInfo, lstObjs ) { ... objInfo. } When I want to VA show me suggestion list for object objInfo, VA show msg "Type of expression to the left of . or -> is not class struct or union." I know that templates under the macro BOOST_FOREACH is realy complex, but isn't there any way to tell VA that objInfo has some type ? (for example in comments) : foreach ( stObjectInfo &objInfo, lstObjs ) //VA: stObjectInfo &objInfo Thanks for reply Ludek Vodicka
4 L A T E S T R E P L I E S (Newest First)
xxluda	Posted - Feb 28 2009 : 04:21:50 AM Hello Your solution works perfect, thanks a lot. Also thanks for detailed explaination, which helps us in other VA parsing problems whith ours internal macros. Best regards LV
accord	Posted - Feb 27 2009 : 3:53:57 PM Turn off this recursive macro stuff. You can help VA to parse difficult code by placing a simplified version of a macro or class into its stdafx.h: http://docs.wholetomato.com?W302 It is parsed and seen only by VA. I have prepared a macro for your specific case: #define foreach(x, y) x; Just put it into this stdafx.h, so VA's parser will think you have an object definition, so foreach ( stObjectInfo &objInfo, lstObjs ) { ... objInfo. } will expand to stObjectInfo &objInfo; { ... objInfo. } so listboxes should contain the correct class members. I've tested this approach and it worked for me.
xxluda	Posted - Feb 27 2009 : 11:07:10 AM Hello, I try to set registry keys `LimitMacro` and `LimitMacroParsing` to yours recomanded values, but foreach macro still not works. But as new side effect of macro recursive parsing, when I editing our Unit-tests (also written by boost macros) IDE is realy slow (sometimes I'am not able to write more than one char per second). So, I want to ask again, isn't there any way to help VA parser with type and variable identification ? Or, Is there any chance to implement these helpers ? (I don't known how dificult it could be) Thanks Ludek Vodicka
accord	Posted - Feb 22 2009 : 1:07:53 PM Visual Assist isn't parsing macros recursively by default. So Visual Assist don't know what is BOOST_FOREACH after foreach in this line: #define foreach BOOST_FOREACH To turn on recursive macro parsing, just follow the steps here: http://docs.wholetomato.com?W363 You may need to rebuild your symbol databases after this, by pressing this button: VA Options -> Performance -> Rebuild symbol databases Please let me know if it doesn't help.

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