lldb/source/Interpreter/OptionValueFileSpec.cpp

   1 //===-- OptionValueFileSpec.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/OptionValueFileSpec.h"
  10
  11 #include "lldb/DataFormatters/FormatManager.h"
  12 #include "lldb/Host/FileSystem.h"
  13 #include "lldb/Interpreter/CommandCompletions.h"
  14 #include "lldb/Interpreter/CommandInterpreter.h"
  15 #include "lldb/Utility/Args.h"
  16 #include "lldb/Utility/State.h"
  17
  18 using namespace lldb;
  19 using namespace lldb_private;
  20
  21 OptionValueFileSpec::OptionValueFileSpec(bool resolve) : m_resolve(resolve) {}
  22
  23 OptionValueFileSpec::OptionValueFileSpec(const FileSpec &value, bool resolve)
  24     : m_current_value(value), m_default_value(value),
  25
  26       m_resolve(resolve) {}
  27
  28 OptionValueFileSpec::OptionValueFileSpec(const FileSpec &current_value,
  29                                          const FileSpec &default_value,
  30                                          bool resolve)
  31     : m_current_value(current_value), m_default_value(default_value),
  32
  33       m_resolve(resolve) {}
  34
  35 void OptionValueFileSpec::DumpValue(const ExecutionContext *exe_ctx,
  36                                     Stream &strm, uint32_t dump_mask) {
  37   if (dump_mask & eDumpOptionType)
  38     strm.Printf("(%s)", GetTypeAsCString());
  39   if (dump_mask & eDumpOptionValue) {
  40     if (dump_mask & eDumpOptionType)
  41       strm.PutCString(" = ");
  42
  43     if (m_current_value) {
  44       strm << '"' << m_current_value.GetPath().c_str() << '"';
  45     }
  46   }
  47 }
  48
  49 Status OptionValueFileSpec::SetValueFromString(llvm::StringRef value,
  50                                                VarSetOperationType op) {
  51   Status error;
  52   switch (op) {
  53   case eVarSetOperationClear:
  54     Clear();
  55     NotifyValueChanged();
  56     break;
  57
  58   case eVarSetOperationReplace:
  59   case eVarSetOperationAssign:
  60     if (value.size() > 0) {
  61       value = value.trim("\"' \t");
  62       m_value_was_set = true;
  63       m_current_value.SetFile(value.str(), FileSpec::Style::native);
  64       if (m_resolve)
  65         FileSystem::Instance().Resolve(m_current_value);
  66       m_data_sp.reset();
  67       m_data_mod_time = llvm::sys::TimePoint<>();
  68       NotifyValueChanged();
  69     } else {
  70       error = Status::FromErrorString("invalid value string");
  71     }
  72     break;
  73
  74   case eVarSetOperationInsertBefore:
  75   case eVarSetOperationInsertAfter:
  76   case eVarSetOperationRemove:
  77   case eVarSetOperationAppend:
  78   case eVarSetOperationInvalid:
  79     error = OptionValue::SetValueFromString(value, op);
  80     break;
  81   }
  82   return error;
  83 }
  84
  85 void OptionValueFileSpec::AutoComplete(CommandInterpreter &interpreter,
  86                                        CompletionRequest &request) {
  87   lldb_private::CommandCompletions::InvokeCommonCompletionCallbacks(
  88       interpreter, m_completion_mask, request, nullptr);
  89 }
  90
  91 const lldb::DataBufferSP &OptionValueFileSpec::GetFileContents() {
  92   if (m_current_value) {
  93     const auto file_mod_time = FileSystem::Instance().GetModificationTime(m_current_value);
  94     if (m_data_sp && m_data_mod_time == file_mod_time)
  95       return m_data_sp;
  96     m_data_sp =
  97         FileSystem::Instance().CreateDataBuffer(m_current_value.GetPath());
  98     m_data_mod_time = file_mod_time;
  99   }
 100   return m_data_sp;
 101 }