Enable default cpp prelude. (#1560)

* Enable default cpp prelude.

* Print the "#include" line as a normal source if the file does not exist.

* Bug fix

* Fix.

* Fix c++ prelude header.

* Remove unnecessary fopen call.

5 files changed, 22 insertions, 36 deletions

diff --git a/source/slang/run-generators.vcxproj b/source/slang/run-generators.vcxproj
index 41f61f01d..82b993466 100644
--- a/source/slang/run-generators.vcxproj
+++ b/source/slang/run-generators.vcxproj
@@ -154,6 +154,10 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\prelude\slang-cpp-scalar-intrinsics.h" />
+    <ClInclude Include="..\..\prelude\slang-cpp-types.h" />
+  </ItemGroup>
+  <ItemGroup>
     <ClCompile Include="..\core\slang-string.cpp" />
   </ItemGroup>
   <ItemGroup>
@@ -170,32 +174,6 @@
       <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">../../bin/windows-x86/release/slang-embed.exe</AdditionalInputs>
       <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release|x64'">../../bin/windows-x64/release/slang-embed.exe</AdditionalInputs>
     </CustomBuild>
-    <CustomBuild Include="..\..\prelude\slang-cpp-scalar-intrinsics.h">
-      <FileType>Document</FileType>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">"../../bin/windows-x86/debug/slang-embed" %(Identity)</Command>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">"../../bin/windows-x64/debug/slang-embed" %(Identity)</Command>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">"../../bin/windows-x86/release/slang-embed" %(Identity)</Command>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Release|x64'">"../../bin/windows-x64/release/slang-embed" %(Identity)</Command>
-      <Outputs>../../prelude/slang-cpp-scalar-intrinsics.h.cpp</Outputs>
-      <Message>slang-embed %(Identity)</Message>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">../../bin/windows-x86/debug/slang-embed.exe</AdditionalInputs>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">../../bin/windows-x64/debug/slang-embed.exe</AdditionalInputs>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">../../bin/windows-x86/release/slang-embed.exe</AdditionalInputs>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release|x64'">../../bin/windows-x64/release/slang-embed.exe</AdditionalInputs>
-    </CustomBuild>
-    <CustomBuild Include="..\..\prelude\slang-cpp-types.h">
-      <FileType>Document</FileType>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">"../../bin/windows-x86/debug/slang-embed" %(Identity)</Command>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">"../../bin/windows-x64/debug/slang-embed" %(Identity)</Command>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">"../../bin/windows-x86/release/slang-embed" %(Identity)</Command>
-      <Command Condition="'$(Configuration)|$(Platform)'=='Release|x64'">"../../bin/windows-x64/release/slang-embed" %(Identity)</Command>
-      <Outputs>../../prelude/slang-cpp-types.h.cpp</Outputs>
-      <Message>slang-embed %(Identity)</Message>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">../../bin/windows-x86/debug/slang-embed.exe</AdditionalInputs>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">../../bin/windows-x64/debug/slang-embed.exe</AdditionalInputs>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">../../bin/windows-x86/release/slang-embed.exe</AdditionalInputs>
-      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release|x64'">../../bin/windows-x64/release/slang-embed.exe</AdditionalInputs>
-    </CustomBuild>
     <CustomBuild Include="..\..\prelude\slang-cuda-prelude.h">
       <FileType>Document</FileType>
       <Command Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">"../../bin/windows-x86/debug/slang-embed" %(Identity)</Command>
diff --git a/source/slang/run-generators.vcxproj.filters b/source/slang/run-generators.vcxproj.filters
index 6a51d5ba7..e8ec8394a 100644
--- a/source/slang/run-generators.vcxproj.filters
+++ b/source/slang/run-generators.vcxproj.filters
@@ -9,6 +9,14 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\prelude\slang-cpp-scalar-intrinsics.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\prelude\slang-cpp-types.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
     <ClCompile Include="..\core\slang-string.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
@@ -17,12 +25,6 @@
     <CustomBuild Include="..\..\prelude\slang-cpp-prelude.h">
       <Filter>Header Files</Filter>
     </CustomBuild>
-    <CustomBuild Include="..\..\prelude\slang-cpp-scalar-intrinsics.h">
-      <Filter>Header Files</Filter>
-    </CustomBuild>
-    <CustomBuild Include="..\..\prelude\slang-cpp-types.h">
-      <Filter>Header Files</Filter>
-    </CustomBuild>
     <CustomBuild Include="..\..\prelude\slang-cuda-prelude.h">
       <Filter>Header Files</Filter>
     </CustomBuild>
diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index 1086338f4..572c9c3a3 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -41,8 +41,9 @@
 #undef NOMINMAX
 #endif
 
-extern char const* slang_cuda_prelude;
-extern char const* slang_hlsl_prelude;
+extern Slang::String get_slang_cuda_prelude();
+extern Slang::String get_slang_cpp_prelude();
+extern Slang::String get_slang_hlsl_prelude();
 
 namespace Slang {
 
@@ -189,8 +190,9 @@ void Session::init()
     }
 
     // Set up default prelude code for target languages that need a prelude
-    m_languagePreludes[Index(SourceLanguage::CUDA)] = slang_cuda_prelude;
-    m_languagePreludes[Index(SourceLanguage::HLSL)] = slang_hlsl_prelude;
+    m_languagePreludes[Index(SourceLanguage::CUDA)] = get_slang_cuda_prelude();
+    m_languagePreludes[Index(SourceLanguage::CPP)] = get_slang_cpp_prelude();
+    m_languagePreludes[Index(SourceLanguage::HLSL)] = get_slang_hlsl_prelude();
 }
 
 ISlangUnknown* Session::getInterface(const Guid& guid)
diff --git a/source/slang/slang.vcxproj b/source/slang/slang.vcxproj
index a5d51e36b..d98a29118 100644
--- a/source/slang/slang.vcxproj
+++ b/source/slang/slang.vcxproj
@@ -298,6 +298,7 @@
     <ClInclude Include="slang-visitor.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\..\prelude\slang-cpp-prelude.h.cpp" />
     <ClCompile Include="..\..\prelude\slang-cuda-prelude.h.cpp" />
     <ClCompile Include="..\..\prelude\slang-hlsl-prelude.h.cpp" />
     <ClCompile Include="slang-ast-builder.cpp" />
diff --git a/source/slang/slang.vcxproj.filters b/source/slang/slang.vcxproj.filters
index fec82a8f5..b9f9d69c0 100644
--- a/source/slang/slang.vcxproj.filters
+++ b/source/slang/slang.vcxproj.filters
@@ -341,6 +341,9 @@
     </ClInclude>
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\..\prelude\slang-cpp-prelude.h.cpp">
+      <Filter>Header Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\prelude\slang-cuda-prelude.h.cpp">
       <Filter>Header Files</Filter>
     </ClCompile>