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 }
79