source/Interpreter/OptionValueLanguage.cpp

   1 //===-- OptionValueLanguage.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/OptionValueLanguage.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/DataFormatters/FormatManager.h"
  18 #include "lldb/Interpreter/Args.h"
  19 #include "lldb/Target/Language.h"
  20
  21 using namespace lldb;
  22 using namespace lldb_private;
  23
  24 void OptionValueLanguage::DumpValue(const ExecutionContext *exe_ctx,
  25                                     Stream &strm, uint32_t dump_mask) {
  26   if (dump_mask & eDumpOptionType)
  27     strm.Printf("(%s)", GetTypeAsCString());
  28   if (dump_mask & eDumpOptionValue) {
  29     if (dump_mask & eDumpOptionType)
  30       strm.PutCString(" = ");
  31     strm.PutCString(Language::GetNameForLanguageType(m_current_value));
  32   }
  33 }
  34
  35 Error OptionValueLanguage::SetValueFromString(llvm::StringRef value,
  36                                               VarSetOperationType op) {
  37   Error error;
  38   switch (op) {
  39   case eVarSetOperationClear:
  40     Clear();
  41     break;
  42
  43   case eVarSetOperationReplace:
  44   case eVarSetOperationAssign: {
  45     ConstString lang_name(value.trim());
  46     std::set<lldb::LanguageType> languages_for_types;
  47     std::set<lldb::LanguageType> languages_for_expressions;
  48     Language::GetLanguagesSupportingTypeSystems(languages_for_types,
  49                                                 languages_for_expressions);
  50
  51     LanguageType new_type =
  52         Language::GetLanguageTypeFromString(lang_name.GetStringRef());
  53     if (new_type && languages_for_types.count(new_type)) {
  54       m_value_was_set = true;
  55       m_current_value = new_type;
  56     } else {
  57       StreamString error_strm;
  58       error_strm.Printf("invalid language type '%s', ", value.str().c_str());
  59       error_strm.Printf("valid values are:\n");
  60       for (lldb::LanguageType language : languages_for_types) {
  61         error_strm.Printf("%s%s%s", "    ",
  62                           Language::GetNameForLanguageType(language), "\n");
  63       }
  64       error.SetErrorString(error_strm.GetString());
  65     }
  66   } break;
  67
  68   case eVarSetOperationInsertBefore:
  69   case eVarSetOperationInsertAfter:
  70   case eVarSetOperationRemove:
  71   case eVarSetOperationAppend:
  72   case eVarSetOperationInvalid:
  73     error = OptionValue::SetValueFromString(value, op);
  74     break;
  75   }
  76   return error;
  77 }
  78
  79 lldb::OptionValueSP OptionValueLanguage::DeepCopy() const {
  80   return OptionValueSP(new OptionValueLanguage(*this));
  81 }