package com.zarbosoft.semicompiled;
import java.lang.String;
class Main {
public static void myMethod(int x, double y) {
double z = x + y;
}
public static void main(String[] args) {
myMethod(4, 13.2);
}
}
Classfile /tmp/semicompiled-MZ5dDaQh-4563683503057005132/com/zarbosoft/semicompiled/Main.class
Last modified Jun 2, 2024; size 342 bytes
MD5 checksum e32c2c32310d4a94d3301e17d7e7847f
class com.zarbosoft.semicompiled.Main
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #5 // com/zarbosoft/semicompiled/Main
super_class: #6 // java/lang/Object
interfaces: 0, fields: 0, methods: 3, attributes: 0
Constant pool:
#1 = Methodref #6.#18 // java/lang/Object."<init>":()V
#2 = Double 13.2d
#4 = Methodref #5.#19 // com/zarbosoft/semicompiled/Main.myMethod:(ID)V
#5 = Class #20 // com/zarbosoft/semicompiled/Main
#6 = Class #21 // java/lang/Object
#7 = Utf8 <init>
#8 = Utf8 ()V
#9 = Utf8 Code
#10 = Utf8 myMethod
#11 = Utf8 (ID)V
#12 = Utf8 MethodParameters
#13 = Utf8 x
#14 = Utf8 y
#15 = Utf8 main
#16 = Utf8 ([Ljava/lang/String;)V
#17 = Utf8 args
#18 = NameAndType #7:#8 // "<init>":()V
#19 = NameAndType #10:#11 // myMethod:(ID)V
#20 = Utf8 com/zarbosoft/semicompiled/Main
#21 = Utf8 java/lang/Object
{
com.zarbosoft.semicompiled.Main();
descriptor: ()V
flags: (0x0000)
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokespecial #1 // Method java/lang/Object."<init>":()V
4: return
public static void myMethod(int, double);
descriptor: (ID)V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=4, locals=5, args_size=2
0: iload_0
1: i2d
2: dload_1
3: dadd
4: dstore_3
5: return
MethodParameters:
Name Flags
x
y
public static void main(java.lang.String[]);
descriptor: ([Ljava/lang/String;)V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=3, locals=1, args_size=1
0: iconst_4
1: ldc2_w #2 // double 13.2d
4: invokestatic #4 // Method myMethod:(ID)V
7: return
MethodParameters:
Name Flags
args
}
package asm.com.zarbosoft.semicompiled;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.ConstantDynamic;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.Handle;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.RecordComponentVisitor;
import org.objectweb.asm.Type;
import org.objectweb.asm.TypePath;
public class MainDump implements Opcodes {
public static byte[] dump() throws Exception {
ClassWriter classWriter = new ClassWriter(0);
FieldVisitor fieldVisitor;
RecordComponentVisitor recordComponentVisitor;
MethodVisitor methodVisitor;
AnnotationVisitor annotationVisitor0;
classWriter.visit(
V1_8, ACC_SUPER, "com/zarbosoft/semicompiled/Main", null, "java/lang/Object", null);
{
methodVisitor = classWriter.visitMethod(0, "<init>", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
{
methodVisitor =
classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "myMethod", "(ID)V", null, null);
methodVisitor.visitParameter("x", 0);
methodVisitor.visitParameter("y", 0);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ILOAD, 0);
methodVisitor.visitInsn(I2D);
methodVisitor.visitVarInsn(DLOAD, 1);
methodVisitor.visitInsn(DADD);
methodVisitor.visitVarInsn(DSTORE, 3);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(4, 5);
methodVisitor.visitEnd();
}
{
methodVisitor =
classWriter.visitMethod(
ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null);
methodVisitor.visitParameter("args", 0);
methodVisitor.visitCode();
methodVisitor.visitInsn(ICONST_4);
methodVisitor.visitLdcInsn(new Double("13.2"));
methodVisitor.visitMethodInsn(
INVOKESTATIC, "com/zarbosoft/semicompiled/Main", "myMethod", "(ID)V", false);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(3, 1);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
Classfile /tmp/semicompiled-MZ5dDaQh-4563683503057005132/com/zarbosoft/semicompiled/Main.class
Last modified Jun 2, 2024; size 609 bytes
MD5 checksum becb66d54721163c0539620a686837cd
Compiled from "Main.java"
class com.zarbosoft.semicompiled.Main
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #5 // com/zarbosoft/semicompiled/Main
super_class: #6 // java/lang/Object
interfaces: 0, fields: 0, methods: 3, attributes: 1
Constant pool:
#1 = Methodref #6.#28 // java/lang/Object."<init>":()V
#2 = Double 13.2d
#4 = Methodref #5.#29 // com/zarbosoft/semicompiled/Main.myMethod:(ID)V
#5 = Class #30 // com/zarbosoft/semicompiled/Main
#6 = Class #31 // java/lang/Object
#7 = Utf8 <init>
#8 = Utf8 ()V
#9 = Utf8 Code
#10 = Utf8 LineNumberTable
#11 = Utf8 LocalVariableTable
#12 = Utf8 this
#13 = Utf8 Lcom/zarbosoft/semicompiled/Main;
#14 = Utf8 myMethod
#15 = Utf8 (ID)V
#16 = Utf8 x
#17 = Utf8 I
#18 = Utf8 y
#19 = Utf8 D
#20 = Utf8 z
#21 = Utf8 MethodParameters
#22 = Utf8 main
#23 = Utf8 ([Ljava/lang/String;)V
#24 = Utf8 args
#25 = Utf8 [Ljava/lang/String;
#26 = Utf8 SourceFile
#27 = Utf8 Main.java
#28 = NameAndType #7:#8 // "<init>":()V
#29 = NameAndType #14:#15 // myMethod:(ID)V
#30 = Utf8 com/zarbosoft/semicompiled/Main
#31 = Utf8 java/lang/Object
{
com.zarbosoft.semicompiled.Main();
descriptor: ()V
flags: (0x0000)
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokespecial #1 // Method java/lang/Object."<init>":()V
4: return
LineNumberTable:
line 5: 0
LocalVariableTable:
Start Length Slot Name Signature
0 5 0 this Lcom/zarbosoft/semicompiled/Main;
public static void myMethod(int, double);
descriptor: (ID)V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=4, locals=5, args_size=2
0: iload_0
1: i2d
2: dload_1
3: dadd
4: dstore_3
5: return
LineNumberTable:
line 7: 0
line 8: 5
LocalVariableTable:
Start Length Slot Name Signature
0 6 0 x I
0 6 1 y D
5 1 3 z D
MethodParameters:
Name Flags
x
y
public static void main(java.lang.String[]);
descriptor: ([Ljava/lang/String;)V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=3, locals=1, args_size=1
0: iconst_4
1: ldc2_w #2 // double 13.2d
4: invokestatic #4 // Method myMethod:(ID)V
7: return
LineNumberTable:
line 11: 0
line 12: 7
LocalVariableTable:
Start Length Slot Name Signature
0 8 0 args [Ljava/lang/String;
MethodParameters:
Name Flags
args
}
SourceFile: "Main.java"
package asm.com.zarbosoft.semicompiled;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.ConstantDynamic;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.Handle;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.RecordComponentVisitor;
import org.objectweb.asm.Type;
import org.objectweb.asm.TypePath;
public class MainDump implements Opcodes {
public static byte[] dump() throws Exception {
ClassWriter classWriter = new ClassWriter(0);
FieldVisitor fieldVisitor;
RecordComponentVisitor recordComponentVisitor;
MethodVisitor methodVisitor;
AnnotationVisitor annotationVisitor0;
classWriter.visit(
V1_8, ACC_SUPER, "com/zarbosoft/semicompiled/Main", null, "java/lang/Object", null);
classWriter.visitSource("Main.java", null);
{
methodVisitor = classWriter.visitMethod(0, "<init>", "()V", null, null);
methodVisitor.visitCode();
Label label0 = new Label();
methodVisitor.visitLabel(label0);
methodVisitor.visitLineNumber(5, label0);
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
methodVisitor.visitInsn(RETURN);
Label label1 = new Label();
methodVisitor.visitLabel(label1);
methodVisitor.visitLocalVariable(
"this", "Lcom/zarbosoft/semicompiled/Main;", null, label0, label1, 0);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
{
methodVisitor =
classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "myMethod", "(ID)V", null, null);
methodVisitor.visitParameter("x", 0);
methodVisitor.visitParameter("y", 0);
methodVisitor.visitCode();
Label label0 = new Label();
methodVisitor.visitLabel(label0);
methodVisitor.visitLineNumber(7, label0);
methodVisitor.visitVarInsn(ILOAD, 0);
methodVisitor.visitInsn(I2D);
methodVisitor.visitVarInsn(DLOAD, 1);
methodVisitor.visitInsn(DADD);
methodVisitor.visitVarInsn(DSTORE, 3);
Label label1 = new Label();
methodVisitor.visitLabel(label1);
methodVisitor.visitLineNumber(8, label1);
methodVisitor.visitInsn(RETURN);
Label label2 = new Label();
methodVisitor.visitLabel(label2);
methodVisitor.visitLocalVariable("x", "I", null, label0, label2, 0);
methodVisitor.visitLocalVariable("y", "D", null, label0, label2, 1);
methodVisitor.visitLocalVariable("z", "D", null, label1, label2, 3);
methodVisitor.visitMaxs(4, 5);
methodVisitor.visitEnd();
}
{
methodVisitor =
classWriter.visitMethod(
ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null);
methodVisitor.visitParameter("args", 0);
methodVisitor.visitCode();
Label label0 = new Label();
methodVisitor.visitLabel(label0);
methodVisitor.visitLineNumber(11, label0);
methodVisitor.visitInsn(ICONST_4);
methodVisitor.visitLdcInsn(new Double("13.2"));
methodVisitor.visitMethodInsn(
INVOKESTATIC, "com/zarbosoft/semicompiled/Main", "myMethod", "(ID)V", false);
Label label1 = new Label();
methodVisitor.visitLabel(label1);
methodVisitor.visitLineNumber(12, label1);
methodVisitor.visitInsn(RETURN);
Label label2 = new Label();
methodVisitor.visitLabel(label2);
methodVisitor.visitLocalVariable("args", "[Ljava/lang/String;", null, label0, label2, 0);
methodVisitor.visitMaxs(3, 1);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
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