Reimplemented the code that backed the "settings" in lldb. There were many issues with the previous implementation:
- no setting auto completion
- very manual and error prone way of getting/setting variables
- tons of code duplication
- useless instance names for processes, threads

Now settings can easily be defined like option values. The new settings makes use of the "OptionValue" classes so we can re-use the option value code that we use to set settings in command options. No more instances, just "does the right thing".



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@162366 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Interpreter/Property.cpp b/source/Interpreter/Property.cpp
new file mode 100644
index 0000000..7e7dc01
--- /dev/null
+++ b/source/Interpreter/Property.cpp
@@ -0,0 +1,268 @@
+//===-- Property.cpp --------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Interpreter/Property.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Core/UserSettingsController.h"
+#include "lldb/Interpreter/Args.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/OptionValues.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+Property::Property (const PropertyDefinition &definition) :
+    m_name (definition.name),
+    m_description (definition.description),
+    m_value_sp (),
+    m_is_global (definition.global)
+{
+    switch (definition.type)
+    {
+        case OptionValue::eTypeInvalid:
+        case OptionValue::eTypeProperties:
+            break;
+        case OptionValue::eTypeArch:
+            // "definition.default_uint_value" is not used
+            // "definition.default_cstr_value" as a string value that represents the default string value for the architecture/triple
+            m_value_sp.reset (new OptionValueArch(definition.default_cstr_value));
+            break;
+            
+        case OptionValue::eTypeArgs:
+            // "definition.default_uint_value" is always a OptionValue::Type
+            m_value_sp.reset (new OptionValueArgs());
+            break;
+            
+        case OptionValue::eTypeArray:
+            // "definition.default_uint_value" is always a OptionValue::Type
+            m_value_sp.reset (new OptionValueArray(OptionValue::ConvertTypeToMask((OptionValue::Type)definition.default_uint_value)));
+            break;
+            
+        case OptionValue::eTypeBoolean:
+            // "definition.default_uint_value" is the default boolean value if
+            // "definition.default_cstr_value" is NULL, otherwise interpret
+            // "definition.default_cstr_value" as a string value that represents the default
+            // value.
+            if (definition.default_cstr_value)
+                m_value_sp.reset (new OptionValueBoolean(Args::StringToBoolean (definition.default_cstr_value, false, NULL)));
+            else
+                m_value_sp.reset (new OptionValueBoolean(definition.default_uint_value != 0));
+            break;
+            
+        case OptionValue::eTypeDictionary:
+            // "definition.default_uint_value" is always a OptionValue::Type
+            m_value_sp.reset (new OptionValueDictionary(OptionValue::ConvertTypeToMask((OptionValue::Type)definition.default_uint_value)));
+            break;
+            
+        case OptionValue::eTypeEnum:
+            // "definition.default_uint_value" is the default enumeration value if
+            // "definition.default_cstr_value" is NULL, otherwise interpret
+            // "definition.default_cstr_value" as a string value that represents the default
+            // value.
+        {
+            OptionValueEnumeration *enum_value = new OptionValueEnumeration(definition.enum_values, definition.default_uint_value);
+            m_value_sp.reset (enum_value);
+            if (definition.default_cstr_value)
+            {
+                if (enum_value->SetValueFromCString(definition.default_cstr_value).Success())
+                {
+                    enum_value->SetDefaultValue(enum_value->GetCurrentValue());
+                    // Call Clear() since we don't want the value to appear as
+                    // having been set since we called SetValueFromCString() above.
+                    // Clear will set the current value to the default and clear
+                    // the boolean that says that the value has been set.
+                    enum_value->Clear();
+                }
+            }
+        }
+            break;
+            
+        case OptionValue::eTypeFileSpec:
+            // "definition.default_uint_value" represents if the "definition.default_cstr_value" should
+            // be resolved or not
+            m_value_sp.reset (new OptionValueFileSpec(FileSpec(definition.default_cstr_value, definition.default_uint_value != 0)));
+            break;
+            
+        case OptionValue::eTypeFileSpecList:
+            // "definition.default_uint_value" is not used for a OptionValue::eTypeFileSpecList
+            m_value_sp.reset (new OptionValueFileSpecList());
+            break;
+            
+        case OptionValue::eTypeFormat:
+            // "definition.default_uint_value" is the default format enumeration value if
+            // "definition.default_cstr_value" is NULL, otherwise interpret
+            // "definition.default_cstr_value" as a string value that represents the default
+            // value.
+        {
+            Format new_format = eFormatInvalid;
+            if (definition.default_cstr_value)
+                Args::StringToFormat (definition.default_cstr_value, new_format, NULL);
+            else
+                new_format = (Format)definition.default_uint_value;
+            m_value_sp.reset (new OptionValueFormat(new_format));
+        }
+            break;
+            
+        case OptionValue::eTypePathMap:
+            // "definition.default_uint_value" tells us if notifications should occur for
+            // path mappings
+            m_value_sp.reset (new OptionValuePathMappings(definition.default_uint_value != 0));
+            break;
+            
+        case OptionValue::eTypeRegex:
+            // "definition.default_uint_value" is used to the regular expression flags
+            // "definition.default_cstr_value" the default regular expression value
+            // value.
+            m_value_sp.reset (new OptionValueRegex(definition.default_cstr_value, definition.default_uint_value));
+            break;
+            
+        case OptionValue::eTypeSInt64:
+            // "definition.default_uint_value" is the default integer value if
+            // "definition.default_cstr_value" is NULL, otherwise interpret
+            // "definition.default_cstr_value" as a string value that represents the default
+            // value.
+            m_value_sp.reset (new OptionValueSInt64(definition.default_cstr_value ? Args::StringToSInt64 (definition.default_cstr_value) : definition.default_uint_value));
+            break;
+            
+        case OptionValue::eTypeUInt64:
+            // "definition.default_uint_value" is the default unsigned integer value if
+            // "definition.default_cstr_value" is NULL, otherwise interpret
+            // "definition.default_cstr_value" as a string value that represents the default
+            // value.
+            m_value_sp.reset (new OptionValueUInt64(definition.default_cstr_value ? Args::StringToUInt64 (definition.default_cstr_value) : definition.default_uint_value));
+            break;
+            
+        case OptionValue::eTypeUUID:
+            // "definition.default_uint_value" is not used for a OptionValue::eTypeUUID
+            // "definition.default_cstr_value" can contain a default UUID value
+        {
+            UUID uuid;
+            if (definition.default_cstr_value)
+                uuid.SetfromCString (definition.default_cstr_value);
+            m_value_sp.reset (new OptionValueUUID(uuid));
+        }
+            break;
+            
+        case OptionValue::eTypeString:
+            // "definition.default_uint_value" is not used for a OptionValueFileSpecList
+            // "definition.default_cstr_value" can contain a default string value
+            m_value_sp.reset (new OptionValueString(definition.default_cstr_value));
+            break;
+    }
+}
+
+Property::Property (const ConstString &name,
+                    const ConstString &desc,
+                    bool is_global,
+                    const lldb::OptionValueSP &value_sp) :
+    m_name (name),
+    m_description (desc),
+    m_value_sp (value_sp),
+    m_is_global (is_global)
+{
+}
+
+bool
+Property::DumpQualifiedName(Stream &strm) const
+{
+    if (m_name)
+    {
+        if (m_value_sp->DumpQualifiedName(strm))
+            strm.PutChar('.');
+        strm << m_name;
+        return true;
+    }
+    return false;
+}
+
+
+void
+Property::Dump (const ExecutionContext *exe_ctx, Stream &strm, uint32_t dump_mask) const
+{
+    if (m_value_sp)
+    {
+        const bool dump_desc = dump_mask & OptionValue::eDumpOptionDescription;
+        const bool transparent = m_value_sp->ValueIsTransparent ();
+        if (dump_desc || !transparent)
+        {
+            if ((dump_mask & OptionValue::eDumpOptionName) && m_name)
+            {
+                DumpQualifiedName(strm);
+                if (dump_mask & ~OptionValue::eDumpOptionName)
+                    strm.PutChar(' ');
+            }
+        }
+        if (dump_desc)
+        {
+            const char *desc = GetDescription();
+            if (desc)
+                strm.Printf ("-- %s", desc);
+            
+            if (transparent && (dump_mask == (OptionValue::eDumpOptionName | OptionValue::eDumpOptionDescription)))
+                strm.EOL();
+        }
+        m_value_sp->DumpValue(exe_ctx, strm, dump_mask);
+    }
+}
+
+
+void
+Property::DumpDescription (CommandInterpreter &interpreter,
+                           Stream &strm,
+                           uint32_t output_width,
+                           bool display_qualified_name) const
+{
+    if (m_value_sp)
+    {
+        const char *desc = GetDescription();
+
+        if (desc)
+        {
+            StreamString qualified_name;
+            const OptionValueProperties *sub_properties = m_value_sp->GetAsProperties();
+            if (sub_properties)
+            {
+                strm.EOL();
+                
+                if (m_value_sp->DumpQualifiedName(qualified_name))
+                    strm.Printf("'%s' variables:\n\n", qualified_name.GetString().c_str());
+                sub_properties->DumpAllDescriptions(interpreter, strm);
+            }
+            else
+            {
+                if (desc)
+                {
+                    if (display_qualified_name)
+                    {
+                        StreamString qualified_name;
+                        DumpQualifiedName(qualified_name);
+                        interpreter.OutputFormattedHelpText (strm,
+                                                             qualified_name.GetString().c_str(),
+                                                             "--",
+                                                             desc,
+                                                             output_width);
+                    }
+                    else
+                    {
+                        interpreter.OutputFormattedHelpText (strm,
+                                                             m_name.GetCString(),
+                                                             "--",
+                                                             desc,
+                                                             output_width);
+                    }
+                }
+            }
+        }
+    }
+}
+