include/lldb/Expression/ExpressionSourceCode.h

   1 //===-- ExpressionSourceCode.h ----------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef liblldb_ExpressionSourceCode_h
  11 #define liblldb_ExpressionSourceCode_h
  12
  13 #include "lldb/lldb-enumerations.h"
  14
  15 #include <string>
  16
  17 namespace lldb_private
  18 {
  19
  20 class ExecutionContext;
  21
  22 class ExpressionSourceCode
  23 {
  24 public:
  25     static const char * g_expression_prefix;
  26
  27     static ExpressionSourceCode *CreateWrapped (const char *prefix,
  28                                                 const char *body)
  29     {
  30         return new ExpressionSourceCode ("$__lldb_expr",
  31                                          prefix,
  32                                          body,
  33                                          true);
  34     }
  35
  36     static ExpressionSourceCode *CreateUnwrapped (const char *name,
  37                                                   const char *body)
  38     {
  39         return new ExpressionSourceCode (name,
  40                                          "",
  41                                          body,
  42                                          false);
  43     }
  44
  45     bool NeedsWrapping () const
  46     {
  47         return m_wrap;
  48     }
  49
  50     const char *GetName () const
  51     {
  52         return m_name.c_str();
  53     }
  54
  55     bool GetText (std::string &text,
  56                   lldb::LanguageType wrapping_language,
  57                   bool static_method,
  58                   ExecutionContext &exe_ctx) const;
  59
  60     // Given a string returned by GetText, find the beginning and end of the body passed to CreateWrapped.
  61     // Return true if the bounds could be found.  This will also work on text with FixItHints applied.
  62     static bool
  63     GetOriginalBodyBounds(std::string transformed_text,
  64                           lldb::LanguageType wrapping_language,
  65                           size_t &start_loc,
  66                           size_t &end_loc);
  67
  68 private:
  69     ExpressionSourceCode (const char *name,
  70                           const char *prefix,
  71                           const char *body,
  72                           bool wrap) :
  73         m_name(name),
  74         m_prefix(prefix),
  75         m_body(body),
  76         m_wrap(wrap)
  77     {
  78     }
  79
  80     std::string m_name;
  81     std::string m_prefix;
  82     std::string m_body;
  83     bool m_wrap;
  84 };
  85
  86 } // namespace lldb_private
  87
  88 #endif