Use MethodTypeDesc builder

mrjameshamilton · Jan 21, 2024 · ea854cd · ea854cd
1 parent bad77b3
commit ea854cd
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/Main.java b/Main.java
@@ -2,18 +2,20 @@
 import java.io.IOException;
 import java.nio.file.Path;
 import java.lang.constant.ClassDesc;
+import java.lang.constant.MethodTypeDesc;
 
+import static java.lang.constant.ConstantDescs.CD_void;
 import static java.lang.constant.ClassDesc.*;
 import static java.lang.constant.MethodTypeDesc.ofDescriptor;
 import static java.lang.classfile.ClassFile.*;
 
 public class Main {
     public static void main(String[] args) throws IOException {
-        ClassFile.of().buildTo(Path.of("HelloWorld.class"), ClassDesc.of("HelloWorld"), classBuilder -> classBuilder
-          .withMethodBody("main", ofDescriptor("([Ljava/lang/String;)V"), ACC_PUBLIC | ACC_STATIC, codeBuilder -> codeBuilder
+        ClassFile.of().buildTo(Path.of("HelloWorld.class"), of("HelloWorld"), classBuilder -> classBuilder
+          .withMethodBody("main", MethodTypeDesc.of(CD_void, of("java.lang.String").arrayType()), ACC_PUBLIC | ACC_STATIC, codeBuilder -> codeBuilder
             .getstatic(of("java.lang.System"), "out", of("java.io.PrintStream"))
             .ldc("Hello World")
-            .invokevirtual(of("java.io.PrintStream"), "println", ofDescriptor("(Ljava/lang/Object;)V"))
+            .invokevirtual(of("java.io.PrintStream"), "println", MethodTypeDesc.of(CD_void, of("java.lang.Object")))
             .return_()));
     }
 }