AnalysisDebuggingUtils.h

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#ifndef ROSE_ANALYSIS_DEBUGGING_UTILS_H
#define ROSE_ANALYSIS_DEBUGGING_UTILS_H

#include <list>
#include <vector>
#include <string>
#include <iostream>
#include <fstream>

class printable
{
        public:
        virtual ~printable() {}
        virtual std::string str(std::string indent="")=0;
};

class dottable
{
        public:
        virtual ~dottable() {}
        // Returns a string that containts the representation of the object as a graph in the DOT language
        // that has the given name
        virtual std::string toDOT(std::string graphName)=0;
};

class Analysis;

namespace Dbg {
  // For each function, a dot graph file will be generated. The CFG node will contain lattices information.
  // The dot file will have a name like: original_full_filename_managed_func_name_cfg.dot
  void dotGraphGenerator (Analysis *a);

class dbgStream;

// Adopted from http://wordaligned.org/articles/cpp-streambufs
class dbgBuf: public std::streambuf
{
        friend class dbgStream;
        // True immediately after a new line
        bool synched;
        // True if the owner dbgStream is writing text and false if the user is
        bool ownerAccess;
        std::streambuf* baseBuf;
        std::list<std::string> funcs;
        //std::list<std::string> indents;
        
        // The number of observed '<' characters that have not yet been balanced out by '>' characters.
        //      numOpenAngles = 1 means that we're inside an HTML tag
        //      numOpenAngles > 1 implies an error or text inside a comment
        int numOpenAngles;
        
        // The number of divs that have been inserted into the output
        std::list<int> parentDivs;

public:
        
        virtual ~dbgBuf() {};
        // Construct a streambuf which tees output to both input
        // streambufs.
        dbgBuf();
        dbgBuf(std::streambuf* baseBuf);
        void init(std::streambuf* baseBuf);
        
private:
        // This dbgBuf has no buffer. So every character "overflows"
        // and can be put directly into the teed buffers.
        virtual int overflow(int c);
        
        // Prints the indent to the stream buffer, returns 0 on success non-0 on failure
        //int printIndent();
        
        // Prints the given string to the stream buffer
        int printString(std::string s);
        
        //virtual int sputc(char c);
        
        virtual std::streamsize xsputn(const char * s, std::streamsize n);
        
        // Sync buffer.
        virtual int sync();
        
        // Switch between the owner class and user code writing text
protected:
        void userAccessing();
        void ownerAccessing();

        // Indicates that the application has entered or exited a function
        void enterFunc(std::string funcName/*, std::string indent="    "*/);
        void exitFunc(std::string funcName);
};

// Stream that uses dbgBuf
class dbgStream : public std::ostream
{
        std::ofstream dbgFile;
        dbgBuf buf;
        std::vector<std::string> colors;
        // The root working directory
        std::string workDir;
        // The directory where all images will be stored
        std::string imgPath;
        // The name of the output debug file
        std::string dbgFileName;
        // The total number of images in the output file
        int numImages;
        
        std::ofstream summaryF;
        bool initialized;
public:
        // Construct an ostream which tees output to the supplied
        // ostreams.
        dbgStream();
        dbgStream(std::string title, std::string dbgFileName, std::string workDir, std::string imgPath);
        void init(std::string title, std::string dbgFileName, std::string workDir, std::string imgPath);
        ~dbgStream();
        void printDetailFileHeader(std::string title);
        void printDetailFileTrailer();
                
        // Indicates that the application has entered or exited a function
        void enterFunc(std::string funcName/*, std::string indent="    "*/);
        void exitFunc(std::string funcName);
                
        // Adds an image to the output with the given extension and returns the path of this image
        // so that the caller can write to it.
        std::string addImage(std::string ext=".gif");
        
        // Given a reference to an object that can be represented as a dot graph, create an image from it and add it to the output.
        // Return the path of the image.
        std::string addDOT(dottable& obj);
        // Given a reference to an object that can be represented as a dot graph, create an image of it and return the string
        // that must be added to the output to include this image.
        std::string addDOTStr(dottable& obj);
        // Given a representation of a graph in dot format, create an image from it and add it to the output.
        // Return the path of the image.
        std::string addDOT(std::string dot);
        // The common work code for all the addDOT methods
        void addDOT(std::string imgFName, std::string graphName, std::string dot, std::ostream& ret);
};

        extern bool initialized;
        extern dbgStream dbg;
        
        // Initializes the debug sub-system
        void init(std::string title, std::string workDir, std::string fName="debug");
        
        // Indicates that the application has entered or exited a function
        void enterFunc(std::string funcName/*, std::string indent="    "*/);
        void exitFunc(std::string funcName);
                
        // Adds an image to the output with the given extension and returns the path of this image
        // so that the caller can write to it.
        std::string addImage(std::string ext=".gif");
        
        // Given a reference to an object that can be represented as a dot graph,  create an image from it and add it to the output.
        // Return the path of the image.
        std::string addDOT(dottable& obj);
        
        // Given a reference to an object that can be represented as a dot graph, create an image of it and return the string
        // that must be added to the output to include this image.
        std::string addDOTStr(dottable& obj);
        
        // Given a representation of a graph in dot format, create an image from it and add it to the output.
        // Return the path of the image.
        std::string addDOT(std::string dot);
        
        // Given a string, returns a version of the string with all the control characters that may appear in the 
        // string escaped to that the string can be written out to Dbg::dbg with no formatting issues.
        // This function can be called on text that has already been escaped with no harm.
        std::string escape(std::string s);
}

#endif