C# Language Frontend

.github/workflows/build.yml

@@ -49,6 +49,11 @@ jobs:
       - uses: actions/setup-go@v6
         with:
           go-version-file: cpg-language-go/src/test/resources/golang/integration/go.mod
+      - uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: "8.0"
+        env:
+          DOTNET_INSTALL_DIR: ~/.dotnet
       - name: Setup neo4j
         run: |
           docker run -d --env NEO4J_AUTH=neo4j/password -p7474:7474 -p7687:7687 -e NEO4JLABS_PLUGINS='["apoc"]' neo4j:5 || true

.gitignore

@@ -19,6 +19,11 @@ logs
 *.dylib
 *.so
 *.log
+*.dll
+
+# .NET build artifacts
+obj/
+bin/
 
 gradle.properties
 LibrariesTest.kt

configure_frontends.sh

@@ -62,5 +62,7 @@ answerJVM=$(ask "Do you want to enable the JVM frontend? (currently $(getPropert
 setProperty "enableJVMFrontend" $answerJVM
 answerINI=$(ask "Do you want to enable the INI frontend? (currently $(getProperty "enableINIFrontend"))")
 setProperty "enableINIFrontend" $answerINI
+answerCsharp=$(ask "Do you want to enable the C# frontend? (currently $(getProperty "enableCSharpFrontend"))")
+setProperty "enableCSharpFrontend" answerCsharp
 answerMCP=$(ask "Do you want to enable the MCP module? (currently $(getProperty "enableMCPModule"))")
 setProperty "enableMCPModule" $answerMCP

cpg-language-csharp/build.gradle.kts

@@ -0,0 +1,32 @@
+plugins { id("cpg.frontend-conventions") }
+
+dependencies { implementation("net.java.dev.jna:jna:5.18.1") }
+
+val publishNativeParser by
+    tasks.registering(Exec::class) {
+        // TODO: Check again https://learn.microsoft.com/en-us/dotnet/core/rid-catalog
+        val osName = System.getProperty("os.name")
+        val os = if (osName.startsWith("Mac")) "osx" else "linux"
+        val arch = System.getProperty("os.arch").replace("aarch64", "arm64").replace("amd64", "x64")
+        val rid = "$os-$arch"
+        workingDir = file("src/main/csharp/NativeParser")
+        val dotnet =
+            listOf(
+                    "/opt/homebrew/opt/dotnet@8/bin/dotnet",
+                    "/usr/local/bin/dotnet",
+                    "/usr/bin/dotnet",
+                )
+                .map { file(it) }
+                .firstOrNull { it.exists() }
+                ?.absolutePath ?: "dotnet"
+        commandLine(dotnet, "publish", "-c", "Release", "-r", rid)
+    }
+
+tasks.named("compileKotlin") { dependsOn(publishNativeParser) }
+
+mavenPublishing {
+    pom {
+        name.set("Code Property Graph - C# Frontend")
+        description.set("A C# language frontend for the CPG")
+    }
+}

cpg-language-csharp/src/main/csharp/NativeParser/.gitignore

@@ -0,0 +1,2 @@
+bin/
+obj/