Start convert from C# to C++. Issue: linksplatform#48

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VasiliyevAD · Nov 14, 2021 · 3301901 · 3301901
1 parent 297341e
commit 3301901
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Showing 4 changed files with 74 additions and 12 deletions.
diff --git a/cpp/Platform.Converters/CachingConverterDecorator.h b/cpp/Platform.Converters/CachingConverterDecorator.h
@@ -1,15 +1,38 @@
-namespace Platform::Converters
+#pragma once
+#include <map>
+#include <memory>
+
+#include "IConverter[TSource, TTarget].h"
+
+namespace Platform::Converters
 {
     template <typename ...> class CachingConverterDecorator;
     template <typename TSource, typename TTarget> class CachingConverterDecorator<TSource, TTarget> : public IConverter<TSource, TTarget>
     {
-        private: readonly IConverter<TSource, TTarget> *_baseConverter;
-        private: readonly IDictionary<TSource, TTarget> *_cache;
+        private:
+          std::unique_ptr<IConverter<TSource, TTarget>> _baseConverter;
+          std::unique_ptr<std::map<TSource, TTarget>> _cache;
 
-        public: CachingConverterDecorator(IConverter<TSource, TTarget> &baseConverter, IDictionary<TSource, TTarget> &cache) { (_baseConverter, _cache) = (baseConverter, cache); }
+        private:
+          CachingConverterDecorator(IConverter<TSource, TTarget>& baseConverter, std::map<TSource, TTarget>& cache)
+            : _baseConverter(baseConverter)
+            , _cache(cache)
+          {}
 
-        public: CachingConverterDecorator(IConverter<TSource, TTarget> &baseConverter) : this(baseConverter, Dictionary<TSource, TTarget>()) { }
+          CachingConverterDecorator(IConverter<TSource, TTarget> &baseConverter)
+            : _baseConverter(baseConverter)
+          {
+            _cache = std::make_unique<std::map<TSource, TTarget>>();
+          }
 
-        public: TTarget Convert(TSource source) { return _cache.GetOrAdd(source, _baseConverter.Convert); }
+          TTarget Convert(TSource source)
+          {
+            auto iter = _cache->find(source);
+            if (iter != _cache.end())
+            {
+                *iter = _baseConverter->Convert(source);
+            }
+            return *iter;
+          }
     };
 }
diff --git a/cpp/Platform.Converters/IConverter[T].h b/cpp/Platform.Converters/IConverter[T].h
@@ -2,7 +2,5 @@
 {
     template <typename ...> class IConverter;
     template <typename T> class IConverter<T> : public IConverter<T, T>
-    {
-    public:
-    };
+    { };
 }
diff --git a/cpp/Platform.Converters/Platform.Converters.TemplateLibrary.vcxproj b/cpp/Platform.Converters/Platform.Converters.TemplateLibrary.vcxproj
@@ -99,6 +99,7 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -138,12 +139,23 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="CachingConverterDecorator.h" />
+    <ClInclude Include="CheckedConverter.h" />
     <ClInclude Include="Convert.h" />
     <ClInclude Include="Converter.h" />
+    <ClInclude Include="ConverterBase.h" />
+    <ClInclude Include="IConverter[TSource, TTarget].h" />
+    <ClInclude Include="IConverter[T].h" />
     <ClInclude Include="To.h" />
-    <ClInclude Include="is_detected.h" />
     <ClInclude Include="Platform.Converters.h" />
     <ClInclude Include="StringConverter.h" />
+    <ClInclude Include="UncheckedConverter.h" />
+    <ClInclude Include="UncheckedSignExtendingConverter.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\Platform.Converters.Benchmarks\Int32ToUInt64ConverterBenchmarks.cpp" />
+    <ClCompile Include="..\Platform.Converters.Benchmarks\Program.cpp" />
+    <ClCompile Include="..\Platform.Converters.Benchmarks\UInt64ToUInt64ConverterBenchmarks.cpp" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

diff --git a/cpp/Platform.Converters/Platform.Converters.TemplateLibrary.vcxproj.filters b/cpp/Platform.Converters/Platform.Converters.TemplateLibrary.vcxproj.filters
@@ -27,11 +27,40 @@
     <ClInclude Include="StringConverter.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="is_detected.h">
+    <ClInclude Include="To.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="To.h">
+    <ClInclude Include="CachingConverterDecorator.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="CheckedConverter.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="ConverterBase.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="IConverter[T].h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="IConverter[TSource, TTarget].h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="UncheckedConverter.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="UncheckedSignExtendingConverter.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\Platform.Converters.Benchmarks\Int32ToUInt64ConverterBenchmarks.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Platform.Converters.Benchmarks\Program.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Platform.Converters.Benchmarks\UInt64ToUInt64ConverterBenchmarks.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>