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/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 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     LanguageSet languages_for_types = Language::GetLanguagesSupportingTypeSystems();
44     LanguageType new_type =
45         Language::GetLanguageTypeFromString(lang_name.GetStringRef());
46     if (new_type && languages_for_types[new_type]) {
47       m_value_was_set = true;
48       m_current_value = new_type;
49     } else {
50       StreamString error_strm;
51       error_strm.Printf("invalid language type '%s', ", value.str().c_str());
52       error_strm.Printf("valid values are:\n");
53       for (int bit : languages_for_types.bitvector.set_bits()) {
54         auto language = (LanguageType)bit;
55         error_strm.Printf("    %s\n",
56                           Language::GetNameForLanguageType(language));
57       }
58       error.SetErrorString(error_strm.GetString());
59     }
60   } break;
61 
62   case eVarSetOperationInsertBefore:
63   case eVarSetOperationInsertAfter:
64   case eVarSetOperationRemove:
65   case eVarSetOperationAppend:
66   case eVarSetOperationInvalid:
67     error = OptionValue::SetValueFromString(value, op);
68     break;
69   }
70   return error;
71 }
72 
73 lldb::OptionValueSP OptionValueLanguage::DeepCopy() const {
74   return OptionValueSP(new OptionValueLanguage(*this));
75 }
76