contrib/llvm/tools/lldb/source/Interpreter/OptionValueLanguage.cpp

   1 //===-- OptionValueLanguage.cpp ---------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "lldb/Interpreter/OptionValueLanguage.h"
  10
  11 #include "lldb/DataFormatters/FormatManager.h"
  12 #include "lldb/Target/Language.h"
  13 #include "lldb/Utility/Args.h"
  14 #include "lldb/Utility/Stream.h"
  15
  16 using namespace lldb;
  17 using namespace lldb_private;
  18
  19 void OptionValueLanguage::DumpValue(const ExecutionContext *exe_ctx,
  20                                     Stream &strm, uint32_t dump_mask) {
  21   if (dump_mask & eDumpOptionType)
  22     strm.Printf("(%s)", GetTypeAsCString());
  23   if (dump_mask & eDumpOptionValue) {
  24     if (dump_mask & eDumpOptionType)
  25       strm.PutCString(" = ");
  26     if (m_current_value != eLanguageTypeUnknown)
  27       strm.PutCString(Language::GetNameForLanguageType(m_current_value));
  28   }
  29 }
  30
  31 Status OptionValueLanguage::SetValueFromString(llvm::StringRef value,
  32                                                VarSetOperationType op) {
  33   Status error;
  34   switch (op) {
  35   case eVarSetOperationClear:
  36     Clear();
  37     break;
  38
  39   case eVarSetOperationReplace:
  40   case eVarSetOperationAssign: {
  41     ConstString lang_name(value.trim());
  42     std::set<lldb::LanguageType> languages_for_types;
  43     std::set<lldb::LanguageType> languages_for_expressions;
  44     Language::GetLanguagesSupportingTypeSystems(languages_for_types,
  45                                                 languages_for_expressions);
  46
  47     LanguageType new_type =
  48         Language::GetLanguageTypeFromString(lang_name.GetStringRef());
  49     if (new_type && languages_for_types.count(new_type)) {
  50       m_value_was_set = true;
  51       m_current_value = new_type;
  52     } else {
  53       StreamString error_strm;
  54       error_strm.Printf("invalid language type '%s', ", value.str().c_str());
  55       error_strm.Printf("valid values are:\n");
  56       for (lldb::LanguageType language : languages_for_types) {
  57         error_strm.Printf("%s%s%s", "    ",
  58                           Language::GetNameForLanguageType(language), "\n");
  59       }
  60       error.SetErrorString(error_strm.GetString());
  61     }
  62   } break;
  63
  64   case eVarSetOperationInsertBefore:
  65   case eVarSetOperationInsertAfter:
  66   case eVarSetOperationRemove:
  67   case eVarSetOperationAppend:
  68   case eVarSetOperationInvalid:
  69     error = OptionValue::SetValueFromString(value, op);
  70     break;
  71   }
  72   return error;
  73 }
  74
  75 lldb::OptionValueSP OptionValueLanguage::DeepCopy() const {
  76   return OptionValueSP(new OptionValueLanguage(*this));
  77 }