i22006/Compilerbau2024AbsolutNichtHaskell
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better Label-Logging-Support

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simon 2024-06-27 22:25:31 +02:00
parent 3e2368d13c
commit eac411972a
1 changed files with 23 additions and 0 deletions
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23
src/main/java/de/maishai/typedast/LoggingMethodVisitor.java
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@ -1,15 +1,31 @@
package de.maishai.typedast; package de.maishai.typedast;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor; import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes; import org.objectweb.asm.Opcodes;
import java.util.HashMap;
import java.util.Map;
public class LoggingMethodVisitor extends MethodVisitor { public class LoggingMethodVisitor extends MethodVisitor {
private final Map<Label, String> labelNames = new HashMap<>();
private int labelCounter = 0;
public LoggingMethodVisitor(MethodVisitor methodVisitor) { public LoggingMethodVisitor(MethodVisitor methodVisitor) {
super(Opcodes.ASM9, methodVisitor); super(Opcodes.ASM9, methodVisitor);
System.out.println("\n--- Visiting Method ---"); System.out.println("\n--- Visiting Method ---");
} }
private String getLabelName(Label label) {
return labelNames.computeIfAbsent(label, k -> "label" + labelCounter++);
}
@Override
public void visitJumpInsn(int opcode, Label label) {
System.out.println("visitJumpInsn: " + opcodeToString(opcode) + ", " + getLabelName(label));
super.visitJumpInsn(opcode, label);
}
public static String opcodeToString(int opcode) { public static String opcodeToString(int opcode) {
for (java.lang.reflect.Field field : Opcodes.class.getDeclaredFields()) { for (java.lang.reflect.Field field : Opcodes.class.getDeclaredFields()) {
try { try {
@ -72,6 +88,13 @@ public class LoggingMethodVisitor extends MethodVisitor {
super.visitIntInsn(opcode, operand); super.visitIntInsn(opcode, operand);
} }
@Override
public void visitLabel(Label label) {
String labelName = getLabelName(label);
System.out.println("visitLabel: " + labelName);
super.visitLabel(label);
}
@Override @Override
public void visitLdcInsn(Object value) { public void visitLdcInsn(Object value) {
System.out.println("visitLdcInsn: " + value); System.out.println("visitLdcInsn: " + value);