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      1 //===-- OptionValuePathMappings.cpp -----------------------------*- 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 #include "lldb/Interpreter/OptionValuePathMappings.h"
     11 
     12 // C Includes
     13 // C++ Includes
     14 // Other libraries and framework includes
     15 // Project includes
     16 #include "lldb/Core/Stream.h"
     17 #include "lldb/Interpreter/Args.h"
     18 
     19 using namespace lldb;
     20 using namespace lldb_private;
     21 
     22 void
     23 OptionValuePathMappings::DumpValue (const ExecutionContext *exe_ctx, Stream &strm, uint32_t dump_mask)
     24 {
     25     if (dump_mask & eDumpOptionType)
     26         strm.Printf ("(%s)", GetTypeAsCString ());
     27     if (dump_mask & eDumpOptionValue)
     28     {
     29         if (dump_mask & eDumpOptionType)
     30             strm.Printf (" =%s", (m_path_mappings.GetSize() > 0) ? "\n" : "");
     31         m_path_mappings.Dump(&strm);
     32     }
     33 }
     34 
     35 Error
     36 OptionValuePathMappings::SetValueFromCString (const char *value, VarSetOperationType op)
     37 {
     38     Error error;
     39     Args args(value);
     40     const size_t argc = args.GetArgumentCount();
     41 
     42     switch (op)
     43     {
     44         case eVarSetOperationClear:
     45             Clear ();
     46             break;
     47 
     48         case eVarSetOperationReplace:
     49             // Must be at least one index + 1 pair of paths, and the pair count must be even
     50             if (argc >= 3 && (((argc - 1) & 1) == 0))
     51             {
     52                 uint32_t idx = Args::StringToUInt32(args.GetArgumentAtIndex(0), UINT32_MAX);
     53                 const uint32_t count = m_path_mappings.GetSize();
     54                 if (idx > count)
     55                 {
     56                     error.SetErrorStringWithFormat("invalid file list index %u, index must be 0 through %u", idx, count);
     57                 }
     58                 else
     59                 {
     60                     for (size_t i=1; i<argc; i += 2, ++idx)
     61                     {
     62                         ConstString a(args.GetArgumentAtIndex(i));
     63                         ConstString b(args.GetArgumentAtIndex(i+1));
     64                         if (!m_path_mappings.Replace (a, b, idx, m_notify_changes))
     65                             m_path_mappings.Append(a, b, m_notify_changes);
     66                     }
     67                 }
     68             }
     69             else
     70             {
     71                 error.SetErrorString("replace operation takes an array index followed by one or more path pairs");
     72             }
     73             break;
     74 
     75 
     76 
     77         case eVarSetOperationAssign:
     78             if (argc < 2 || (argc & 1))
     79             {
     80                 error.SetErrorString("assign operation takes one or more path pairs");
     81                 break;
     82             }
     83             m_path_mappings.Clear(m_notify_changes);
     84             // Fall through to append case
     85         case eVarSetOperationAppend:
     86             if (argc < 2 || (argc & 1))
     87             {
     88                 error.SetErrorString("append operation takes one or more path pairs");
     89                 break;
     90             }
     91             else
     92             {
     93                 for (size_t i=0; i<argc; i += 2)
     94                 {
     95                     ConstString a(args.GetArgumentAtIndex(i));
     96                     ConstString b(args.GetArgumentAtIndex(i+1));
     97                     m_path_mappings.Append(a, b, m_notify_changes);
     98                     m_value_was_set = true;
     99                 }
    100             }
    101             break;
    102 
    103         case eVarSetOperationInsertBefore:
    104         case eVarSetOperationInsertAfter:
    105             // Must be at least one index + 1 pair of paths, and the pair count must be even
    106             if (argc >= 3 && (((argc - 1) & 1) == 0))
    107             {
    108                 uint32_t idx = Args::StringToUInt32(args.GetArgumentAtIndex(0), UINT32_MAX);
    109                 const uint32_t count = m_path_mappings.GetSize();
    110                 if (idx > count)
    111                 {
    112                     error.SetErrorStringWithFormat("invalid file list index %u, index must be 0 through %u", idx, count);
    113                 }
    114                 else
    115                 {
    116                     if (op == eVarSetOperationInsertAfter)
    117                         ++idx;
    118                     for (size_t i=1; i<argc; i += 2, ++idx)
    119                     {
    120                         ConstString a(args.GetArgumentAtIndex(i));
    121                         ConstString b(args.GetArgumentAtIndex(i+1));
    122                         m_path_mappings.Insert (a, b, idx, m_notify_changes);
    123                     }
    124                 }
    125             }
    126             else
    127             {
    128                 error.SetErrorString("insert operation takes an array index followed by one or more path pairs");
    129             }
    130             break;
    131 
    132         case eVarSetOperationRemove:
    133             if (argc > 0)
    134             {
    135                 std::vector<int> remove_indexes;
    136                 bool all_indexes_valid = true;
    137                 size_t i;
    138                 for (i=0; all_indexes_valid && i<argc; ++i)
    139                 {
    140                     const int idx = Args::StringToSInt32(args.GetArgumentAtIndex(i), INT32_MAX);
    141                     if (idx == INT32_MAX)
    142                         all_indexes_valid = false;
    143                     else
    144                         remove_indexes.push_back(idx);
    145                 }
    146 
    147                 if (all_indexes_valid)
    148                 {
    149                     size_t num_remove_indexes = remove_indexes.size();
    150                     if (num_remove_indexes)
    151                     {
    152                         // Sort and then erase in reverse so indexes are always valid
    153                         std::sort(remove_indexes.begin(), remove_indexes.end());
    154                         for (size_t j=num_remove_indexes-1; j<num_remove_indexes; ++j)
    155                         {
    156                             m_path_mappings.Remove (j, m_notify_changes);
    157                         }
    158                     }
    159                 }
    160                 else
    161                 {
    162                     error.SetErrorStringWithFormat("invalid array index '%s', aborting remove operation", args.GetArgumentAtIndex(i));
    163                 }
    164             }
    165             else
    166             {
    167                 error.SetErrorString("remove operation takes one or more array index");
    168             }
    169             break;
    170 
    171         case eVarSetOperationInvalid:
    172             error = OptionValue::SetValueFromCString (value, op);
    173             break;
    174     }
    175     return error;
    176 
    177     m_value_was_set = true;
    178     return Error();
    179 }
    180 
    181 lldb::OptionValueSP
    182 OptionValuePathMappings::DeepCopy () const
    183 {
    184     return OptionValueSP(new OptionValuePathMappings(*this));
    185 }
    186