contrib/llvm/tools/lldb/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 #include "lldb/DataFormatters/FormatManager.h"
  13 #include "lldb/Target/Language.h"
  14 #include "lldb/Utility/Args.h"
  15 #include "lldb/Utility/Stream.h"
  16
  17 using namespace lldb;
  18 using namespace lldb_private;
  19
  20 void OptionValueLanguage::DumpValue(const ExecutionContext *exe_ctx,
  21                                     Stream &strm, uint32_t dump_mask) {
  22   if (dump_mask & eDumpOptionType)
  23     strm.Printf("(%s)", GetTypeAsCString());
  24   if (dump_mask & eDumpOptionValue) {
  25     if (dump_mask & eDumpOptionType)
  26       strm.PutCString(" = ");
  27     if (m_current_value != eLanguageTypeUnknown)
  28       strm.PutCString(Language::GetNameForLanguageType(m_current_value));
  29   }
  30 }
  31
  32 Status OptionValueLanguage::SetValueFromString(llvm::StringRef value,
  33                                                VarSetOperationType op) {
  34   Status error;
  35   switch (op) {
  36   case eVarSetOperationClear:
  37     Clear();
  38     break;
  39
  40   case eVarSetOperationReplace:
  41   case eVarSetOperationAssign: {
  42     ConstString lang_name(value.trim());
  43     std::set<lldb::LanguageType> languages_for_types;
  44     std::set<lldb::LanguageType> languages_for_expressions;
  45     Language::GetLanguagesSupportingTypeSystems(languages_for_types,
  46                                                 languages_for_expressions);
  47
  48     LanguageType new_type =
  49         Language::GetLanguageTypeFromString(lang_name.GetStringRef());
  50     if (new_type && languages_for_types.count(new_type)) {
  51       m_value_was_set = true;
  52       m_current_value = new_type;
  53     } else {
  54       StreamString error_strm;
  55       error_strm.Printf("invalid language type '%s', ", value.str().c_str());
  56       error_strm.Printf("valid values are:\n");
  57       for (lldb::LanguageType language : languages_for_types) {
  58         error_strm.Printf("%s%s%s", "    ",
  59                           Language::GetNameForLanguageType(language), "\n");
  60       }
  61       error.SetErrorString(error_strm.GetString());
  62     }
  63   } break;
  64
  65   case eVarSetOperationInsertBefore:
  66   case eVarSetOperationInsertAfter:
  67   case eVarSetOperationRemove:
  68   case eVarSetOperationAppend:
  69   case eVarSetOperationInvalid:
  70     error = OptionValue::SetValueFromString(value, op);
  71     break;
  72   }
  73   return error;
  74 }
  75
  76 lldb::OptionValueSP OptionValueLanguage::DeepCopy() const {
  77   return OptionValueSP(new OptionValueLanguage(*this));
  78 }