Example usage for org.objectweb.asm MethodVisitor visitInsn

Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitInsn.

Prototype

public void visitInsn(final int opcode) 

Source Link

Document

Visits a zero operand instruction.

Usage

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.CollectionSizeExpression.java

@Override
public void generate(CodeEmitter code) {
    Label done = new Label();
    Label isNull = new Label();
    MethodVisitor mv = code.getMethodVisitor();
    code.exec(target);//ww w.jav a  2 s  .  co  m
    boolean nullable = code.nullTest(target.getType(), isNull);
    code.getMethodVisitor().visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Collection.class),
            "size", Type.getMethodDescriptor(Type.INT_TYPE), true);
    if (nullable) {
        mv.visitJumpInsn(Opcodes.GOTO, done);
        mv.visitLabel(isNull);
        mv.visitInsn(Opcodes.ICONST_0);
        mv.visitLabel(done);
    }
}

---

From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.IterateFirstSequence.java

@Override
public void generate(CodeEmitter start) {
    CodeEmitter code = start.createScope();
    Label done = new Label();
    Label isNull = new Label();
    MethodVisitor mv = code.getMethodVisitor();
    BytecodeExpression tgt = code.evaluateOnce(target);
    tgt.generate(code);//from   ww  w . j  av  a 2s.c om
    code.emitInstanceCheck(tgt.getType(), Iterable.class, isNull);
    AssignableValue iterator = code.allocate(Iterator.class);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterable.class), "iterator",
            Type.getMethodDescriptor(Type.getType(Iterator.class)), true);
    code.exec(iterator.write(code.adapt(Iterator.class)));
    code.exec(iterator.read());
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterator.class), "hasNext",
            Type.getMethodDescriptor(Type.BOOLEAN_TYPE), true);
    mv.visitJumpInsn(Opcodes.IFEQ, isNull);
    code.exec(iterator.read());
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Iterator.class), "next",
            Type.getMethodDescriptor(Type.getType(Object.class)), true);
    code.cast(valueType, AnyTypeWidget.getInstance(), isNull);
    mv.visitJumpInsn(Opcodes.GOTO, done);
    mv.visitLabel(isNull);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitLabel(done);
}

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From source file:com.yahoo.yqlplus.engine.internal.plan.types.base.PrimitiveTypeWidget.java

@Override
public ComparisonAdapter getComparisionAdapter() {
    return new ComparisonAdapter() {
        @Override//from ww w .  j  ava 2 s.c o m
        public void coerceBoolean(CodeEmitter scope, Label isTrue, Label isFalse, Label isNull) {
            MethodVisitor mv = scope.getMethodVisitor();
            switch (getJVMType().getSort()) {
            case Type.BOOLEAN:
            case Type.SHORT:
            case Type.INT:
            case Type.CHAR:
                mv.visitJumpInsn(Opcodes.IFEQ, isFalse);
                mv.visitJumpInsn(Opcodes.GOTO, isTrue);
                break;
            case Type.FLOAT:
                mv.visitInsn(Opcodes.FCONST_0);
                mv.visitInsn(Opcodes.FCMPG);
                mv.visitJumpInsn(Opcodes.IFEQ, isTrue);
                mv.visitJumpInsn(Opcodes.GOTO, isFalse);
                break;
            case Type.LONG:
                mv.visitInsn(Opcodes.LCONST_0);
                mv.visitInsn(Opcodes.LCMP);
                mv.visitJumpInsn(Opcodes.IFEQ, isTrue);
                mv.visitJumpInsn(Opcodes.GOTO, isFalse);
                break;
            case Type.DOUBLE:
                mv.visitInsn(Opcodes.DCONST_0);
                mv.visitInsn(Opcodes.DCMPG);
                mv.visitJumpInsn(Opcodes.IFEQ, isTrue);
                mv.visitJumpInsn(Opcodes.GOTO, isFalse);
                break;
            default:
                throw new UnsupportedOperationException("Unsupported JVM type: " + getJVMType());

            }
        }
    };
}

---

From source file:com.yahoo.yqlplus.engine.internal.source.MissingRequiredFieldExpr.java

@Override
public void generate(CodeEmitter code) {
    MethodVisitor mv = code.getMethodVisitor();
    mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(IllegalArgumentException.class));
    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn(String.format("%s::%s Missing required property '%s' (%s)", className, methodName,
            propertyName, type.getTypeName()));
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(IllegalArgumentException.class), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(String.class)), false);
    mv.visitInsn(Opcodes.ATHROW);// www.  ja  va2s  . c  o  m
}

---

From source file:de.chimos.property.compiler.passtwo.javafx.PassTwoJFXClassVisitor.java

License:Open Source License

protected void generatePropertyMethod(PropertyInfo property) {
    MethodVisitor mv = cv.visitMethod(property.writeAccessLevel + ACC_FINAL, property.propertyMethodName,
            "()" + property.propertyInterfaceSignature,
            property.propertyInterfaceSignatureGeneric != null
                    ? "()" + property.propertyInterfaceSignatureGeneric
                    : null,/*from   w w  w. j  a v  a  2 s . co m*/
            null);
    {
        AnnotationVisitor av0 = mv.visitAnnotation("L" + Property.class.getName().replace('.', '/') + ";",
                true);
        av0.visit("writeable", Boolean.TRUE);
        av0.visit("name", property.propertyName);
        av0.visit("dataSignature", property.dataSignature);
        av0.visit("dataSignatureGeneric",
                property.dataSignatureGeneric != null ? property.dataSignatureGeneric : "");
        av0.visit("humanReadableName",
                property.humanReadablePropertyName != null ? property.humanReadablePropertyName : "");
        av0.visitEnd();
    }
    mv.visitCode();
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, property.propertyFieldName, property.propertyDataSignature);
    Label l1 = new Label();
    mv.visitJumpInsn(IFNONNULL, l1);
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitTypeInsn(NEW, property.propertyDataType);
    mv.visitInsn(DUP);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitLdcInsn(property.propertyName);
    mv.visitMethodInsn(INVOKESPECIAL, property.propertyDataType, "<init>",
            "(Ljava/lang/Object;Ljava/lang/String;)V");
    mv.visitFieldInsn(PUTFIELD, className, property.propertyFieldName, property.propertyDataSignature);
    mv.visitLabel(l1);
    mv.visitFrame(F_SAME, 0, null, 0, null);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, property.propertyFieldName, property.propertyDataSignature);
    mv.visitTypeInsn(CHECKCAST, property.propertyInterfaceType);
    mv.visitInsn(ARETURN);
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLocalVariable("this", "L" + className + ";", null, l0, l3, 0);
    mv.visitMaxs(5, 1);
    mv.visitEnd();
}

---

From source file:de.chimos.property.compiler.passtwo.javafx.PassTwoJFXClassVisitor.java

License:Open Source License

protected void generateReadOnlyPropertyMethod(PropertyInfo property) {
    MethodVisitor mv = cv.visitMethod(property.readAccessLevel + ACC_FINAL, property.readOnlyPropertyMethodName,
            "()" + property.readOnlyPropertyInterfaceSignature,
            property.readOnlyPropertyInterfaceSignatureGeneric != null
                    ? "()" + property.readOnlyPropertyInterfaceSignatureGeneric
                    : null,/*from   w w  w. j ava  2s.  co m*/
            null);
    {
        AnnotationVisitor av0 = mv.visitAnnotation("L" + Property.class.getName().replace('.', '/') + ";",
                true);
        av0.visit("writeable", Boolean.FALSE);
        av0.visit("name", property.propertyName);
        av0.visit("dataSignature", property.dataSignature);
        av0.visit("dataSignatureGeneric",
                property.dataSignatureGeneric != null ? property.dataSignatureGeneric : "");
        av0.visit("humanReadableName",
                property.humanReadablePropertyName != null ? property.humanReadablePropertyName : "");
        av0.visitEnd();
    }
    mv.visitCode();
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, property.propertyFieldName, property.propertyDataSignature);
    Label l1 = new Label();
    mv.visitJumpInsn(IFNONNULL, l1);
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitTypeInsn(NEW, property.propertyDataType);
    mv.visitInsn(DUP);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitLdcInsn(property.propertyName);
    mv.visitMethodInsn(INVOKESPECIAL, property.propertyDataType, "<init>",
            "(Ljava/lang/Object;Ljava/lang/String;)V");
    mv.visitFieldInsn(PUTFIELD, className, property.propertyFieldName, property.propertyDataSignature);
    mv.visitLabel(l1);
    mv.visitFrame(F_SAME, 0, null, 0, null);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, className, property.propertyFieldName, property.propertyDataSignature);
    mv.visitMethodInsn(INVOKEVIRTUAL, property.propertyDataType, "getReadOnlyProperty",
            "()" + property.readOnlyPropertyInterfaceSignature);
    mv.visitTypeInsn(CHECKCAST, property.readOnlyPropertyInterfaceType);
    mv.visitInsn(ARETURN);
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLocalVariable("this", "L" + className + ";", null, l0, l3, 0);
    mv.visitMaxs(5, 1);
    mv.visitEnd();
}

---

From source file:de.chimos.property.compiler.passtwo.javafx.PassTwoJFXClassVisitor.java

License:Open Source License

protected void generateInternalGetterMethod(PropertyInfo property) {
    MethodVisitor mv = cv.visitMethod(ACC_PRIVATE + ACC_FINAL, property.internalGetterMethodName,
            "()" + property.dataSignature,
            property.dataSignatureGeneric != null ? "()" + property.dataSignatureGeneric : null, null);
    mv.visitCode();/*from  w w w . j  av a  2  s  .  com*/
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKEVIRTUAL, className, property.propertyMethodName,
            "()" + property.propertyInterfaceSignature);
    mv.visitMethodInsn(INVOKEVIRTUAL, property.propertyInterfaceType, "getValue", "()Ljava/lang/Object;");
    mv.visitTypeInsn(CHECKCAST, property.dataType);
    mv.visitInsn(ARETURN);
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0);
    mv.visitMaxs(1, 1);
    mv.visitEnd();
}

---

From source file:de.chimos.property.compiler.passtwo.javafx.PassTwoJFXClassVisitor.java

License:Open Source License

protected void generateInternalSetterMethod(PropertyInfo property) {
    MethodVisitor mv = cv.visitMethod(ACC_PRIVATE + ACC_FINAL, property.internalSetterMethodName,
            "(" + property.dataSignature + ")V",
            property.dataSignatureGeneric != null ? "(" + property.dataSignatureGeneric + ")V" : null, null);
    mv.visitCode();/*from w w  w  .  jav a 2  s. c o  m*/
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKEVIRTUAL, className, property.propertyMethodName,
            "()" + property.propertyInterfaceSignature);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, property.propertyInterfaceType, "setValue", "(Ljava/lang/Object;)V");
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitInsn(RETURN);
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLocalVariable("this", "L" + className + ";", null, l0, l2, 0);
    mv.visitLocalVariable("value", property.dataSignature, null, l0, l2, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();
}

---

From source file:de.chimos.property.compiler.passtwo.javafx.PassTwoJFXClassVisitor.java

License:Open Source License

protected void generateGetterMethod(PropertyInfo property) {
    MethodVisitor mv = cv.visitMethod(property.readAccessLevel, property.getterMethodName,
            "()" + property.dataSignature,
            property.dataSignatureGeneric != null ? "()" + property.dataSignatureGeneric : null, null);
    if (property.enableSerialization == true && config.serialization == Config.Serialization.JAXB) {
        AnnotationVisitor av0 = mv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true);
        av0.visitEnd();//from  ww w  . ja va2s .co m
    }
    mv.visitCode();
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, className, property.internalGetterMethodName,
            "()" + property.dataSignature);
    mv.visitInsn(ARETURN);
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0);
    mv.visitMaxs(1, 1);
    mv.visitEnd();
}

---

From source file:de.chimos.property.compiler.passtwo.javafx.PassTwoJFXClassVisitor.java

License:Open Source License

protected void generateSetterMethod(PropertyInfo property) {
    MethodVisitor mv = cv.visitMethod(property.writeAccessLevel, property.setterMethodName,
            "(" + property.dataSignature + ")V",
            property.dataSignatureGeneric != null ? "(" + property.dataSignatureGeneric + ")V" : null, null);
    mv.visitCode();// w w w .j av  a  2  s. c  o m
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKESPECIAL, className, property.internalSetterMethodName,
            "(" + property.dataSignature + ")V");
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitInsn(RETURN);
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLocalVariable("this", "L" + className + ";", null, l0, l2, 0);
    mv.visitLocalVariable("value", property.dataSignature, null, l0, l2, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();
}

---

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