From c8001a3a584ed2207a0d802d04f3c214ce662c05 Mon Sep 17 00:00:00 2001
From: Pasha Bibko <156938226+PashaBibko@users.noreply.github.com>
Date: Mon, 21 Apr 2025 15:56:10 +0100
Subject: [PATCH] Made the process actually output to the file

---
 Main.cpp => Frontend-Main.cpp |  3 ++-
 LX-LLVM.vcxproj               |  4 ++--
 LX-LLVM.vcxproj.filters       |  2 +-
 Parser/src/GenIR.cpp          | 13 +++++++++----
 common/Parser.h               |  5 ++++-
 5 files changed, 18 insertions(+), 9 deletions(-)
 rename Main.cpp => Frontend-Main.cpp (98%)

diff --git a/Main.cpp b/Frontend-Main.cpp
similarity index 98%
rename from Main.cpp
rename to Frontend-Main.cpp
index 2ba0a7c..d26b630 100644
--- a/Main.cpp
+++ b/Frontend-Main.cpp
@@ -46,6 +46,7 @@ int main(int argc, char** argv)
 		// Opens / Creates the output file //
 		std::ofstream outFile(outPath);
 		LX::ThrowIf<LX::InvalidOutputFilePath>(outFile.is_open() == false);
+		outFile.close(); // Opened just to check we can
 
 		// Opens the log file (if there is one specified //
 		if (argc == 4)
@@ -67,7 +68,7 @@ int main(int argc, char** argv)
 		LX::SafeFlush(log.get());
 
 		// Turns the AST into LLVM IR //
-		LX::GenerateIR(AST, inpPath.filename().string());
+		LX::GenerateIR(AST, inpPath.filename().string(), outPath);
 		LX::SafeFlush(log.get());
 
 		// Returns success
diff --git a/LX-LLVM.vcxproj b/LX-LLVM.vcxproj
index 2bf7af3..9541de2 100644
--- a/LX-LLVM.vcxproj
+++ b/LX-LLVM.vcxproj
@@ -24,7 +24,7 @@
     <ProjectGuid>{cc37e36f-b3b3-41b0-a887-01e8efe84994}</ProjectGuid>
     <RootNamespace>LXLLVM</RootNamespace>
     <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
-    <ProjectName>LX-Compiler</ProjectName>
+    <ProjectName>Compiler-Frontend</ProjectName>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@@ -137,7 +137,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="Main.cpp" />
+    <ClCompile Include="Frontend-Main.cpp" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/LX-LLVM.vcxproj.filters b/LX-LLVM.vcxproj.filters
index d3e9077..6695468 100644
--- a/LX-LLVM.vcxproj.filters
+++ b/LX-LLVM.vcxproj.filters
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="Main.cpp" />
+    <ClCompile Include="Frontend-Main.cpp" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Parser/src/GenIR.cpp b/Parser/src/GenIR.cpp
index 70baf07..cbb3aa5 100644
--- a/Parser/src/GenIR.cpp
+++ b/Parser/src/GenIR.cpp
@@ -3,6 +3,7 @@
 #include <Util.h>
 #include <AST.h>
 
+#include <filesystem>
 #include <iostream>
 
 namespace LX
@@ -38,12 +39,16 @@ namespace LX
 		}
 
 		// Verifies the function works //
-		ThrowIf<int>(llvm::verifyFunction(*func), &llvm::errs()); // <- TODO: Make error type
+		ThrowIf<int>(llvm::verifyFunction(*func)); // <- TODO: Make error type
 	}
 
 	// Turns an abstract binary tree into LLVM intermediate representation //
-	void GenerateIR(FileAST& ast, const std::string& name)
+	void GenerateIR(FileAST& ast, const std::string& name, const std::filesystem::path& IRPath)
 	{
+		// Opens the file to output the IR //
+		std::error_code EC;
+		llvm::raw_fd_ostream file(IRPath.string(), EC);
+
 		// Creates the LLVM variables needed for generating IR that are shared between functions //
 		InfoLLVM LLVM(name);
 
@@ -53,7 +58,7 @@ namespace LX
 			GenerateFunctionIR(func, LLVM);
 		}
 
-		// Outputs the IR to the console //
-		LLVM.module.print(llvm::outs(), nullptr);
+		// Outputs the IR to the output file //
+		LLVM.module.print(file, nullptr);
 	}
 }
diff --git a/common/Parser.h b/common/Parser.h
index 5d19845..42e74ca 100644
--- a/common/Parser.h
+++ b/common/Parser.h
@@ -5,6 +5,9 @@
 
 #include <memory>
 
+// Foward declares STD stuff that is passed around //
+namespace std::filesystem { class path; }
+
 // Foward declares all items of the llvm lib that we need //
 // Done to avoid including LLVM.h to shorten compile times //
 namespace llvm { class Value; }
@@ -85,5 +88,5 @@ namespace LX
 	FileAST TurnTokensIntoAbstractSyntaxTree(std::vector<Token>& tokens, std::ofstream* log);
 
 	// Turns an abstract binary tree into LLVM intermediate representation //
-	void GenerateIR(FileAST& ast, const std::string& name);
+	void GenerateIR(FileAST& ast, const std::string& name, const std::filesystem::path& IRPath);
 }