Import lldb as of SVN r188801

(A number of files not required for the FreeBSD build have been removed.)

Sponsored by:	DARPA, AFRL

1 files changed, 196 insertions, 0 deletions

diff --git a/include/lldb/Core/SourceManager.h b/include/lldb/Core/SourceManager.h
new file mode 100644
index 0000000..b850df7
--- /dev/null
+++ b/include/lldb/Core/SourceManager.h
@@ -0,0 +1,196 @@
+//===-- SourceManager.h -----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_SourceManager_h_
+#define liblldb_SourceManager_h_
+
+// C Includes
+// C++ Includes
+#include <map>
+#include <vector>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Host/FileSpec.h"
+
+namespace lldb_private {
+
+class SourceManager
+{
+public:
+#ifndef SWIG
+    
+    class File
+    {
+    friend bool operator== (const SourceManager::File &lhs, const SourceManager::File &rhs);
+    public:
+    
+        File (const FileSpec &file_spec, Target *target);
+        ~File();
+
+        size_t
+        DisplaySourceLines (uint32_t line,
+                            uint32_t context_before,
+                            uint32_t context_after,
+                            Stream *s);
+        void
+        FindLinesMatchingRegex (RegularExpression& regex, 
+                                uint32_t start_line, 
+                                uint32_t end_line, 
+                                std::vector<uint32_t> &match_lines);
+
+        bool
+        GetLine (uint32_t line_no, std::string &buffer);
+        
+        uint32_t
+        GetLineOffset (uint32_t line);
+
+        bool
+        LineIsValid (uint32_t line);
+
+        bool
+        FileSpecMatches (const FileSpec &file_spec);
+
+        const FileSpec &
+        GetFileSpec ()
+        {
+            return m_file_spec;
+        }
+        
+        uint32_t
+        GetSourceMapModificationID() const
+        {
+            return m_source_map_mod_id;
+        }
+        
+    protected:
+
+        bool
+        CalculateLineOffsets (uint32_t line = UINT32_MAX);
+
+        FileSpec m_file_spec_orig;  // The original file spec that was used (can be different from m_file_spec)
+        FileSpec m_file_spec;       // The actualy file spec being used (if the target has source mappings, this might be different from m_file_spec_orig)
+        TimeValue m_mod_time;       // Keep the modification time that this file data is valid for
+        uint32_t m_source_map_mod_id; // If the target uses path remappings, be sure to clear our notion of a source file if the path modification ID changes
+        lldb::DataBufferSP m_data_sp;
+        typedef std::vector<uint32_t> LineOffsets;
+        LineOffsets m_offsets;
+    };
+
+#endif // SWIG
+
+    typedef std::shared_ptr<File> FileSP;
+
+#ifndef SWIG
+
+   // The SourceFileCache class separates the source manager from the cache of source files, so the 
+   // cache can be stored in the Debugger, but the source managers can be per target.     
+    class SourceFileCache
+    {
+    public:
+        SourceFileCache () {}
+        ~SourceFileCache() {}
+        
+        void AddSourceFile (const FileSP &file_sp);
+        FileSP FindSourceFile (const FileSpec &file_spec) const;
+        
+    protected:
+        typedef std::map <FileSpec, FileSP> FileCache;
+        FileCache m_file_cache;
+    };
+#endif
+
+
+    //------------------------------------------------------------------
+    // Constructors and Destructors
+    //------------------------------------------------------------------
+    // A source manager can be made with a non-null target, in which case it can use the path remappings to find 
+    // source files that are not in their build locations.  With no target it won't be able to do this.
+    SourceManager (const lldb::DebuggerSP &debugger_sp);
+    SourceManager (const lldb::TargetSP &target_sp);
+
+    ~SourceManager();
+
+
+    FileSP
+    GetLastFile () 
+    {
+        return m_last_file_sp;
+    }
+
+    size_t
+    DisplaySourceLinesWithLineNumbers (const FileSpec &file,
+                                       uint32_t line,
+                                       uint32_t context_before,
+                                       uint32_t context_after,
+                                       const char* current_line_cstr,
+                                       Stream *s,
+                                       const SymbolContextList *bp_locs = NULL);
+
+    // This variant uses the last file we visited.
+    size_t
+    DisplaySourceLinesWithLineNumbersUsingLastFile (uint32_t start_line,
+                                                    uint32_t count,
+                                                    uint32_t curr_line,
+                                                    const char* current_line_cstr,
+                                                    Stream *s,
+                                                    const SymbolContextList *bp_locs = NULL);
+
+    size_t
+    DisplayMoreWithLineNumbers (Stream *s,
+                                uint32_t count,
+                                bool reverse,
+                                const SymbolContextList *bp_locs = NULL);
+
+    bool
+    SetDefaultFileAndLine (const FileSpec &file_spec, uint32_t line);
+    
+    bool 
+    GetDefaultFileAndLine (FileSpec &file_spec, uint32_t &line);
+    
+    bool 
+    DefaultFileAndLineSet ()
+    {
+        return (m_last_file_sp.get() != NULL);
+    }
+
+    void
+    FindLinesMatchingRegex (FileSpec &file_spec,
+                            RegularExpression& regex, 
+                            uint32_t start_line, 
+                            uint32_t end_line, 
+                            std::vector<uint32_t> &match_lines);
+
+protected:
+
+    FileSP
+    GetFile (const FileSpec &file_spec);
+    
+    //------------------------------------------------------------------
+    // Classes that inherit from SourceManager can see and modify these
+    //------------------------------------------------------------------
+    FileSP m_last_file_sp;
+    uint32_t m_last_line;
+    uint32_t m_last_count;
+    bool     m_default_set;
+    lldb::TargetWP m_target_wp;
+    lldb::DebuggerWP m_debugger_wp;
+    
+private:
+    //------------------------------------------------------------------
+    // For SourceManager only
+    //------------------------------------------------------------------
+    DISALLOW_COPY_AND_ASSIGN (SourceManager);
+};
+
+bool operator== (const SourceManager::File &lhs, const SourceManager::File &rhs);
+} // namespace lldb_private
+
+#endif  // liblldb_SourceManager_h_