package com.zarbosoft.semicompiled;
import java.lang.String;
class Main {
static float x;
public static void main(String[] args) {
Main.x = 3;
float y = Main.x;
}
}
Classfile /tmp/semicompiled-4IeGaY2q-zAYVOOX2-13508886665543546217/com/zarbosoft/semicompiled/Main.class
Last modified Jun 2, 2024; size 282 bytes
MD5 checksum b08edf5a6b05448a3437545b4016a8eb
class com.zarbosoft.semicompiled.Main
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #4 // com/zarbosoft/semicompiled/Main
super_class: #5 // java/lang/Object
interfaces: 0, fields: 1, methods: 2, attributes: 0
Constant pool:
#1 = Methodref #5.#15 // java/lang/Object."<init>":()V
#2 = Float 3.0f
#3 = Fieldref #4.#16 // com/zarbosoft/semicompiled/Main.x:F
#4 = Class #17 // com/zarbosoft/semicompiled/Main
#5 = Class #18 // java/lang/Object
#6 = Utf8 x
#7 = Utf8 F
#8 = Utf8 <init>
#9 = Utf8 ()V
#10 = Utf8 Code
#11 = Utf8 main
#12 = Utf8 ([Ljava/lang/String;)V
#13 = Utf8 MethodParameters
#14 = Utf8 args
#15 = NameAndType #8:#9 // "<init>":()V
#16 = NameAndType #6:#7 // x:F
#17 = Utf8 com/zarbosoft/semicompiled/Main
#18 = Utf8 java/lang/Object
{
static float x;
descriptor: F
flags: (0x0008) ACC_STATIC
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 main(java.lang.String[]);
descriptor: ([Ljava/lang/String;)V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=1, locals=2, args_size=1
0: ldc #2 // float 3.0f
2: putstatic #3 // Field x:F
5: getstatic #3 // Field x:F
8: fstore_1
9: 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);
{
fieldVisitor = classWriter.visitField(ACC_STATIC, "x", "F", null, null);
fieldVisitor.visitEnd();
}
{
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, "main", "([Ljava/lang/String;)V", null, null);
methodVisitor.visitParameter("args", 0);
methodVisitor.visitCode();
methodVisitor.visitLdcInsn(new Float("3.0"));
methodVisitor.visitFieldInsn(PUTSTATIC, "com/zarbosoft/semicompiled/Main", "x", "F");
methodVisitor.visitFieldInsn(GETSTATIC, "com/zarbosoft/semicompiled/Main", "x", "F");
methodVisitor.visitVarInsn(FSTORE, 1);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(1, 2);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
Classfile /tmp/semicompiled-4IeGaY2q-zAYVOOX2-13508886665543546217/com/zarbosoft/semicompiled/Main.class
Last modified Jun 2, 2024; size 497 bytes
MD5 checksum e5533099616b6c7829f0347a60930380
Compiled from "Main.java"
class com.zarbosoft.semicompiled.Main
minor version: 0
major version: 52
flags: (0x0020) ACC_SUPER
this_class: #4 // com/zarbosoft/semicompiled/Main
super_class: #5 // java/lang/Object
interfaces: 0, fields: 1, methods: 2, attributes: 1
Constant pool:
#1 = Methodref #5.#23 // java/lang/Object."<init>":()V
#2 = Float 3.0f
#3 = Fieldref #4.#24 // com/zarbosoft/semicompiled/Main.x:F
#4 = Class #25 // com/zarbosoft/semicompiled/Main
#5 = Class #26 // java/lang/Object
#6 = Utf8 x
#7 = Utf8 F
#8 = Utf8 <init>
#9 = Utf8 ()V
#10 = Utf8 Code
#11 = Utf8 LineNumberTable
#12 = Utf8 LocalVariableTable
#13 = Utf8 this
#14 = Utf8 Lcom/zarbosoft/semicompiled/Main;
#15 = Utf8 main
#16 = Utf8 ([Ljava/lang/String;)V
#17 = Utf8 args
#18 = Utf8 [Ljava/lang/String;
#19 = Utf8 y
#20 = Utf8 MethodParameters
#21 = Utf8 SourceFile
#22 = Utf8 Main.java
#23 = NameAndType #8:#9 // "<init>":()V
#24 = NameAndType #6:#7 // x:F
#25 = Utf8 com/zarbosoft/semicompiled/Main
#26 = Utf8 java/lang/Object
{
static float x;
descriptor: F
flags: (0x0008) ACC_STATIC
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 main(java.lang.String[]);
descriptor: ([Ljava/lang/String;)V
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=1, locals=2, args_size=1
0: ldc #2 // float 3.0f
2: putstatic #3 // Field x:F
5: getstatic #3 // Field x:F
8: fstore_1
9: return
LineNumberTable:
line 9: 0
line 10: 9
LocalVariableTable:
Start Length Slot Name Signature
0 10 0 args [Ljava/lang/String;
9 1 1 y F
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);
{
fieldVisitor = classWriter.visitField(ACC_STATIC, "x", "F", null, null);
fieldVisitor.visitEnd();
}
{
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, "main", "([Ljava/lang/String;)V", null, null);
methodVisitor.visitParameter("args", 0);
methodVisitor.visitCode();
Label label0 = new Label();
methodVisitor.visitLabel(label0);
methodVisitor.visitLineNumber(9, label0);
methodVisitor.visitLdcInsn(new Float("3.0"));
methodVisitor.visitFieldInsn(PUTSTATIC, "com/zarbosoft/semicompiled/Main", "x", "F");
methodVisitor.visitFieldInsn(GETSTATIC, "com/zarbosoft/semicompiled/Main", "x", "F");
methodVisitor.visitVarInsn(FSTORE, 1);
Label label1 = new Label();
methodVisitor.visitLabel(label1);
methodVisitor.visitLineNumber(10, label1);
methodVisitor.visitInsn(RETURN);
Label label2 = new Label();
methodVisitor.visitLabel(label2);
methodVisitor.visitLocalVariable("args", "[Ljava/lang/String;", null, label0, label2, 0);
methodVisitor.visitLocalVariable("y", "F", null, label1, label2, 1);
methodVisitor.visitMaxs(1, 2);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
}
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