Examples with MethodVisitor org.simpleflatmapper.ow2asm.MethodVisitor used on opensource projects

Example 11 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class GetterBuilder method createPrimitiveGetter.

public static byte[] createPrimitiveGetter(String className, Field field) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = field.getDeclaringClass();
    Class<?> primitive = field.getType();
    Class<?> property = AsmUtils.wrappers.get(primitive);
    String targetType = toType(target);
    String primitiveType = AsmUtils.primitivesType.get(primitive);
    String propertyType = toType(property);
    String classType = toType(className);
    String methodSuffix = property.getSimpleName();
    if ("Integer".equals(methodSuffix)) {
        methodSuffix = "Int";
    }
    String getMethod = "get" + methodSuffix;
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;" + "L" + GETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;" + "L" + ORG_SFM_REFLECT_PRIMITIVE + methodSuffix + "Getter<L" + targetType + ";>;", "java/lang/Object", new String[] { GETTER_TYPE, ORG_SFM_REFLECT_PRIMITIVE + "/" + methodSuffix + "Getter" });
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, getMethod, "(" + AsmUtils.toTargetTypeDeclaration(targetType) + ")" + primitiveType, null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(GETFIELD, targetType, field.getName(), primitiveType);
        mv.visitInsn(AsmUtils.returnOps.get(primitive));
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "get", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + ")" + AsmUtils.toTargetTypeDeclaration(propertyType), null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(GETFIELD, targetType, field.getName(), primitiveType);
        mv.visitMethodInsn(INVOKESTATIC, propertyType, "valueOf", "(" + primitiveType + ")L" + propertyType + ";", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }
    appendPrimitiveBridges(cw, primitive, targetType, primitiveType, propertyType, classType, getMethod);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}

Example 12 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class InstantiatorBuilder method appendInit.

private static <S> void appendInit(Map<Parameter, Getter<? super S, ?>> injections, ClassWriter cw, String sourceType, String classType) {
    MethodVisitor mv;
    mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/util/Map;)V", "(Ljava/util/Map<Ljava.lang.String;L" + AsmUtils.toAsmType(Getter.class) + "<" + AsmUtils.toTargetTypeDeclaration(sourceType) + "*>;>;)V", null);
    mv.visitCode();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
    appendInitGetters(injections, classType, mv);
    mv.visitInsn(RETURN);
    mv.visitMaxs(3, 2);
    mv.visitEnd();
}

Example 13 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class SetterBuilder method appendSet.

private static void appendSet(Field field, ClassWriter cw, Class<?> target, String targetType, String propertyType, String classType) {
    MethodVisitor mv;
    {
        mv = cw.visitMethod(ACC_PUBLIC, "set", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + AsmUtils.toTargetTypeDeclaration(propertyType) + ")V", null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitFieldInsn(PUTFIELD, targetType, field.getName(), AsmUtils.toTargetTypeDeclaration(propertyType));
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    appendSynthetic(cw, targetType, propertyType, classType);
}

Example 14 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class SetterBuilder method createPrimitiveSetter.

public static byte[] createPrimitiveSetter(String className, Field field) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = field.getDeclaringClass();
    Class<?> primitive = field.getType();
    Class<?> property = AsmUtils.wrappers.get(primitive);
    String targetType = toType(target);
    String primitiveType = AsmUtils.primitivesType.get(primitive);
    String propertyType = toType(property);
    String classType = toType(className);
    String methodSuffix = property.getSimpleName();
    if ("Integer".equals(methodSuffix)) {
        methodSuffix = "Int";
    }
    String valueMethodPrefix = methodSuffix.toLowerCase();
    if ("character".equals(valueMethodPrefix)) {
        valueMethodPrefix = "char";
    }
    String setMethod = "set" + methodSuffix;
    String valueMethod = valueMethodPrefix + "Value";
    int primitiveLoadOp = AsmUtils.loadOps.get(primitive);
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;" + "L" + SETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;" + "L" + ORG_SFM_REFLECT_PRIMITIVE + methodSuffix + "Setter<L" + targetType + ";>;", "java/lang/Object", new String[] { SETTER_TYPE, ORG_SFM_REFLECT_PRIMITIVE + "/" + methodSuffix + "Setter" });
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, setMethod, "(" + AsmUtils.toTargetTypeDeclaration(targetType) + primitiveType + ")V", null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(primitiveLoadOp, 2);
        mv.visitFieldInsn(PUTFIELD, targetType, field.getName(), primitiveType);
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "set", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + AsmUtils.toTargetTypeDeclaration(propertyType) + ")V", null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        AsmUtils.invoke(mv, property, valueMethod, "()" + primitiveType);
        mv.visitFieldInsn(PUTFIELD, targetType, field.getName(), primitiveType);
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    appendPrimitiveSynthetic(cw, targetType, primitiveType, propertyType, classType, setMethod, primitiveLoadOp);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}

Example 15 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class CsvMapperCellHandlerBuilder method createTargetSetterClass.

public static <T> byte[] createTargetSetterClass(String className, DelayedCellSetterFactory<T, ?>[] delayedCellSetters, CellSetter<T>[] setters, Type type, boolean ignoreException, int maxMethodSize) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    FieldVisitor fv;
    MethodVisitor mv;
    final String targetType = AsmUtils.toAsmType(type);
    final String classType = AsmUtils.toAsmType(className);
    cw.visit(Opcodes.V1_6, Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, classType, "L" + CSV_CELL_MAPPER_TYPE + "<L" + targetType + ";>;", CSV_CELL_MAPPER_TYPE, null);
    // declare fields
    for (int i = 0; i < delayedCellSetters.length; i++) {
        if (delayedCellSetters[i] != null) {
            fv = cw.visitField(Opcodes.ACC_PROTECTED + Opcodes.ACC_FINAL, "delayedCellSetter" + i, AsmUtils.toTargetTypeDeclaration(DELAYED_CELL_SETTER_TYPE), "L" + DELAYED_CELL_SETTER_TYPE + "<L" + targetType + ";*>;", null);
            fv.visitEnd();
        }
    }
    for (int i = 0; i < setters.length; i++) {
        if (setters[i] != null) {
            fv = cw.visitField(Opcodes.ACC_PROTECTED + Opcodes.ACC_FINAL, "setter" + i, AsmUtils.toTargetTypeDeclaration(CELL_SETTER_TYPE), "L" + CELL_SETTER_TYPE + "<L" + targetType + ";>;", null);
            fv.visitEnd();
        }
    }
    appendInit(delayedCellSetters, setters, cw, targetType, classType, maxMethodSize);
    appendDelayedCellValue(delayedCellSetters, ignoreException, cw, classType);
    append_delayedCellValue(delayedCellSetters, cw, classType, maxMethodSize);
    appendCellValue(setters, ignoreException, cw, classType);
    append_cellValue(delayedCellSetters, setters, cw, classType, maxMethodSize);
    appendApplyDelayedSetter(delayedCellSetters, ignoreException, cw, classType, maxMethodSize);
    appendApplyDelayedCellSetterN(delayedCellSetters, cw, classType);
    appendGetDelayedCellSetter(delayedCellSetters, cw, targetType, classType, maxMethodSize);
    appendPeekDelayedCellSetterValue(delayedCellSetters, cw, classType, maxMethodSize);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}