Merge remote-tracking branch 'origin/main'

# Conflicts:
#	src/main/java/Main.java
#	src/main/java/bytecode/ByteCodeGenerator.java

src/main/java/Main.java

@@ -1,6 +1,3 @@
-import ast.ClassNode;
-import ast.ProgramNode;
-import bytecode.ByteCodeGenerator;
 import org.antlr.v4.runtime.CharStream;
 import org.antlr.v4.runtime.CharStreams;
 import org.antlr.v4.runtime.CommonTokenStream;
@@ -8,6 +5,9 @@ import org.antlr.v4.runtime.tree.ParseTree;
 import parser.ASTBuilder;
 import parser.generated.SimpleJavaLexer;
 import parser.generated.SimpleJavaParser;
+import ast.ClassNode;
+import ast.ProgramNode;
+import bytecode.ByteCodeGenerator;
 
 import java.io.IOException;
 import java.nio.file.Paths;

src/main/java/bytecode/ByteCodeGenerator.java

@@ -1,14 +1,43 @@
 package bytecode;
 
+import java.io.FileOutputStream;
+import java.io.IOException;
+
 import ast.ClassNode;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.Opcodes;
 import ast.ProgramNode;
 
 public class ByteCodeGenerator {
 
   public void generateByteCode(ProgramNode ast) {
-    for (ClassNode classNode : ast.classes) {
-      ClassCodeGen classCodeGen = new ClassCodeGen();
-      classCodeGen.generateClassCode(classNode);
+    for (ClassNode classDeclarationNode : ast.classes) {
+      ClassWriter classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
+      classWriter.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, classDeclarationNode.name, null,
+              "java/lang/Object", null);
+
+      FieldCodeGen fieldCodeGen = new FieldCodeGen();
+      fieldCodeGen.generateFieldCode(classWriter);
+
+      MethodCodeGen methodCodeGen = new MethodCodeGen();
+      methodCodeGen.generateMethodCode(classWriter);
+
+      classWriter.visitEnd();
+      printIntoClassFile(classWriter.toByteArray(), classDeclarationNode.name);
+
+      classWriter.visitEnd();
+    }
+  }
+
+  private void printIntoClassFile(byte[] byteCode, String name) {
+    String filePath = "./classFileOutput/" + name + ".class";
+
+    try {
+      FileOutputStream fileOutputStream = new FileOutputStream(filePath);
+      fileOutputStream.write(byteCode);
+      fileOutputStream.close();
+    } catch (IOException e) {
+      e.printStackTrace();
     }
   }
 }

src/main/test/java/MainTest.java

@@ -1,4 +1,19 @@
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.CharStreams;
 import org.junit.jupiter.api.Test;
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.CharStreams;
+import org.antlr.v4.runtime.CommonTokenStream;
+import org.antlr.v4.runtime.tree.ParseTree;
+import parser.ASTBuilder;
+import parser.generated.SimpleJavaLexer;
+import parser.generated.SimpleJavaParser;
+import ast.ClassNode;
+import ast.ProgramNode;
+import bytecode.ByteCodeGenerator;
+
+import java.io.IOException;
+import java.nio.file.Paths;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -7,10 +22,14 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
  */
 public class MainTest {
     @Test
-    void testAdd() {
-        //Calculator calculator = new Calculator();
-        //int result = calculator.add(2, 3);
-        //assertEquals(5, result, "2 + 3 should equal 5");
+    void testEmptyClass() {
+        CharStream codeCharStream = null;
+        try {
+            codeCharStream = CharStreams.fromPath(Paths.get("src/main/java/Example.java"));
+            Main.parsefile(codeCharStream);
+        } catch (IOException e) {
+            System.err.println("Error reading the file: " + e.getMessage());
+        }
     }
 }