[cfe-commits] r172050 - /cfe/trunk/lib/Format/UnwrappedLineParser.cpp

[Chandler Carruth]

LLVM has a DEBUG() and llvm::dbgs() system for optionally enabled debug
output... Maybe there is a way to wire it up in the clang tools?


On Thu, Jan 10, 2013 at 2:05 AM, Manuel Klimek <klimek at google.com> wrote:

> Author: klimek
> Date: Thu Jan 10 04:05:08 2013
> New Revision: 172050
>
> URL: http://llvm.org/viewvc/llvm-project?rev=172050&view=rev
> Log:
> Introduce a define to switch on debug output.
>
> After re-writing the same loop multiple times, we deicided it's time to
> add this as an optional debugging help.
>
> Modified:
>     cfe/trunk/lib/Format/UnwrappedLineParser.cpp
>
> Modified: cfe/trunk/lib/Format/UnwrappedLineParser.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Format/UnwrappedLineParser.cpp?rev=172050&r1=172049&r2=172050&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Format/UnwrappedLineParser.cpp (original)
> +++ cfe/trunk/lib/Format/UnwrappedLineParser.cpp Thu Jan 10 04:05:08 2013
> @@ -19,6 +19,11 @@
>  #include "UnwrappedLineParser.h"
>  #include "llvm/Support/raw_ostream.h"
>
> +// Uncomment to get debug output from the UnwrappedLineParser.
> +// Use in combination with --gtest_filter=*TestName* to limit the output
> to a
> +// single test.
> +// #define UNWRAPPED_LINE_PARSER_DEBUG_OUTPUT
> +
>  namespace clang {
>  namespace format {
>
> @@ -80,6 +85,9 @@
>  }
>
>  bool UnwrappedLineParser::parse() {
> +#ifdef UNWRAPPED_LINE_PARSER_DEBUG_OUTPUT
> +  llvm::errs() << "----\n";
> +#endif
>    readToken();
>    return parseFile();
>  }
> @@ -576,6 +584,15 @@
>           FormatTok.Tok.is(tok::comment)) {
>      nextToken();
>    }
> +#ifdef UNWRAPPED_LINE_PARSER_DEBUG_OUTPUT
> +  FormatToken* NextToken = &Line->RootToken;
> +  llvm::errs() << "Line: ";
> +  while (NextToken) {
> +    llvm::errs() << NextToken->Tok.getName() << " ";
> +    NextToken = NextToken->Children.empty() ? NULL :
> &NextToken->Children[0];
> +  }
> +  llvm::errs() << "\n";
> +#endif
>    Callback.consumeUnwrappedLine(*Line);
>    RootTokenInitialized = false;
>    LastInCurrentLine = NULL;
>
>
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