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     ConstString lang_name(value.trim());
47     LanguageSet languages_for_types = Language::GetLanguagesSupportingTypeSystems();
48     LanguageType new_type =
49         Language::GetLanguageTypeFromString(lang_name.GetStringRef());
50     if (new_type && languages_for_types[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 (int bit : languages_for_types.bitvector.set_bits()) {
58         auto language = (LanguageType)bit;
59         error_strm.Printf("    %s\n",
60                           Language::GetNameForLanguageType(language));
61       }
62       error.SetErrorString(error_strm.GetString());
63     }
64   } break;
65 
66   case eVarSetOperationInsertBefore:
67   case eVarSetOperationInsertAfter:
68   case eVarSetOperationRemove:
69   case eVarSetOperationAppend:
70   case eVarSetOperationInvalid:
71     error = OptionValue::SetValueFromString(value, op);
72     break;
73   }
74   return error;
75 }
76