lldb/source/Interpreter/OptionValueLanguage.cpp

   1 //===-- OptionValueLanguage.cpp -------------------------------------------===//
   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/Symbol/TypeSystem.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 llvm::json::Value OptionValueLanguage::ToJSON(const ExecutionContext *exe_ctx) {
  33   return Language::GetNameForLanguageType(m_current_value);
  34 }
  35
  36 Status OptionValueLanguage::SetValueFromString(llvm::StringRef value,
  37                                                VarSetOperationType op) {
  38   Status error;
  39   switch (op) {
  40   case eVarSetOperationClear:
  41     Clear();
  42     break;
  43
  44   case eVarSetOperationReplace:
  45   case eVarSetOperationAssign: {
  46     LanguageSet languages_for_types = Language::GetLanguagesSupportingTypeSystems();
  47     LanguageType new_type = Language::GetLanguageTypeFromString(value.trim());
  48     if (new_type && languages_for_types[new_type]) {
  49       m_value_was_set = true;
  50       m_current_value = new_type;
  51     } else {
  52       StreamString error_strm;
  53       error_strm.Printf("invalid language type '%s', ", value.str().c_str());
  54       error_strm.Printf("valid values are:\n");
  55       for (int bit : languages_for_types.bitvector.set_bits()) {
  56         auto language = (LanguageType)bit;
  57         error_strm.Printf("    %s\n",
  58                           Language::GetNameForLanguageType(language));
  59       }
  60       error = Status(error_strm.GetString().str());
  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 }