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QueuedVisitor.java
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QueuedVisitor.java
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package bridge.asm;
import org.objectweb.asm.*;
import java.util.LinkedList;
import java.util.function.Supplier;
import static org.objectweb.asm.Opcodes.*;
public class QueuedVisitor extends MethodVisitor {
protected LinkedList<Runnable> ops = new LinkedList<>();
protected QueuedVisitor(int api) {
super(api);
}
protected QueuedVisitor(int api, MethodVisitor delegate) {
super(api, delegate);
}
public void visitOperation(int opcode, Runnable op) {
ops.add(op);
}
// --- only notification posters beyond this point ---
@Override
public AnnotationVisitor visitAnnotationDefault() {
return new Repeater(super::visitAnnotationDefault);
}
@Override
public AnnotationVisitor visitAnnotation(String descriptor, boolean visible) {
return new Repeater(() -> super.visitAnnotation(descriptor, visible));
}
@Override
public void visitAnnotableParameterCount(int parameterCount, boolean visible) {
visitOperation(-1, () -> super.visitAnnotableParameterCount(parameterCount, visible));
}
@Override
public void visitAttribute(Attribute attribute) {
visitOperation(-1, () -> super.visitAttribute(attribute));
}
@Override
public void visitCode() {
ops.add(super::visitCode);
}
@Override
public void visitEnd() {
ops.add(super::visitEnd);
}
@Override
public void visitFrame(int type, int numLocal, Object[] local, int numStack, Object[] stack) {
ops.add(() -> super.visitFrame(type, numLocal, local, numStack, stack));
}
@Override
public void visitFieldInsn(int opcode, String owner, String name, String descriptor) {
visitOperation(opcode, () -> super.visitFieldInsn(opcode, owner, name, descriptor));
}
@Override
public void visitIincInsn(int varIndex, int increment) {
visitOperation(IINC, () -> super.visitIincInsn(varIndex, increment));
}
@Override
public void visitInsn(int opcode) {
visitOperation(opcode, () -> super.visitInsn(opcode));
}
@Override
public void visitIntInsn(int opcode, int operand) {
visitOperation(opcode, () -> super.visitIntInsn(opcode, operand));
}
@Override
public AnnotationVisitor visitInsnAnnotation(int typeRef, TypePath typePath, String descriptor, boolean visible) {
return new Repeater(() -> super.visitInsnAnnotation(typeRef, typePath, descriptor, visible));
}
@Override
public void visitInvokeDynamicInsn(String name, String descriptor, Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
visitOperation(INVOKEDYNAMIC, () -> super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments));
}
@Override
public void visitJumpInsn(int opcode, Label label) {
visitOperation(opcode, () -> super.visitJumpInsn(opcode, label));
}
@Override
public void visitLabel(Label label) {
ops.add(() -> super.visitLabel(label));
}
@Override
public void visitLdcInsn(Object value) {
visitOperation(LDC, () -> super.visitLdcInsn(value));
}
@Override
public void visitLineNumber(int line, Label start) {
ops.add(() -> super.visitLineNumber(line, start));
}
@Override
public void visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels) {
visitOperation(LOOKUPSWITCH, () -> super.visitLookupSwitchInsn(dflt, keys, labels));
}
@Override
public void visitLocalVariable(String name, String descriptor, String signature, Label start, Label end, int index) {
visitOperation(-1, () -> super.visitLocalVariable(name, descriptor, signature, start, end, index));
}
@Override
public AnnotationVisitor visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start, Label[] end, int[] index, String descriptor, boolean visible) {
return new Repeater(() -> super.visitLocalVariableAnnotation(typeRef, typePath, start, end, index, descriptor, visible));
}
@Override
public void visitMaxs(int maxStack, int maxLocals) {
ops.add(() -> super.visitMaxs(maxStack, maxLocals));
}
@Override
@Deprecated
@SuppressWarnings({"DeprecatedIsStillUsed", "deprecation"})
public void visitMethodInsn(int opcode, String owner, String name, String descriptor) {
visitMethodInsn((api < ASM5)? SOURCE_DEPRECATED | opcode : opcode, owner, name, descriptor, opcode == INVOKEINTERFACE);
}
@Override
public void visitMethodInsn(int opcode, String owner, String name, String descriptor, boolean isInterface) {
if (api < ASM5 && (opcode & SOURCE_DEPRECATED) == 0 && (opcode == INVOKEINTERFACE) == isInterface) {
visitMethodInsn(opcode, owner, name, descriptor);
return;
}
visitOperation(opcode & ~SOURCE_MASK, () -> super.visitMethodInsn(opcode, owner, name, descriptor, isInterface));
}
@Override
public void visitMultiANewArrayInsn(String descriptor, int numDimensions) {
visitOperation(MULTIANEWARRAY, () -> super.visitMultiANewArrayInsn(descriptor, numDimensions));
}
@Override
public void visitParameter(String name, int access) {
visitOperation(-1, () -> super.visitParameter(name, access));
}
@Override
public AnnotationVisitor visitParameterAnnotation(int parameter, String descriptor, boolean visible) {
return new Repeater(() -> super.visitParameterAnnotation(parameter, descriptor, visible));
}
@Override
public void visitTableSwitchInsn(int min, int max, Label dflt, Label... labels) {
visitOperation(TABLESWITCH, () -> super.visitTableSwitchInsn(min, max, dflt, labels));
}
@Override
public AnnotationVisitor visitTryCatchAnnotation(int typeRef, TypePath typePath, String descriptor, boolean visible) {
return new Repeater(() -> super.visitTryCatchAnnotation(typeRef, typePath, descriptor, visible));
}
@Override
public void visitTryCatchBlock(Label start, Label end, Label handler, String type) {
visitOperation(-1, () -> super.visitTryCatchBlock(start, end, handler, type));
}
@Override
public AnnotationVisitor visitTypeAnnotation(int typeRef, TypePath typePath, String descriptor, boolean visible) {
return new Repeater(() -> super.visitTypeAnnotation(typeRef, typePath, descriptor, visible));
}
@Override
public void visitTypeInsn(int opcode, String type) {
visitOperation(opcode, () -> super.visitTypeInsn(opcode, type));
}
@Override
public void visitVarInsn(int opcode, int varIndex) {
visitOperation(opcode, () -> super.visitVarInsn(opcode, varIndex));
}
private final class Repeater extends AnnotationVisitor {
private Repeater(Supplier<AnnotationVisitor> init) {
super(ASM9);
visitOperation(-1, () -> av = init.get());
}
@Override
public void visit(String name, Object value) {
visitOperation(-1, () -> super.visit(name, value));
}
@Override
public void visitEnum(String name, String descriptor, String value) {
visitOperation(-1, () -> super.visitEnum(name, descriptor, value));
}
@Override
public AnnotationVisitor visitAnnotation(String name, String descriptor) {
return new Repeater(() -> super.visitAnnotation(name, descriptor));
}
@Override
public AnnotationVisitor visitArray(String name) {
return new Repeater(() -> super.visitArray(name));
}
@Override
public void visitEnd() {
visitOperation(-1, super::visitEnd);
}
}
}