Example usage for org.objectweb.asm.commons GeneratorAdapter pop2

Introduction

In this page you can find the example usage for org.objectweb.asm.commons GeneratorAdapter pop2.

Prototype

public void pop2() 

Source Link

Document

Generates a POP2 instruction.

Usage

From source file:io.datakernel.codegen.ExpressionSequence.java

License:Apache License

@Override
public Type load(Context ctx) {
    GeneratorAdapter g = ctx.getGeneratorAdapter();

    Type type = VOID_TYPE;/*from   w  w w.  j  av a 2s  .  c om*/
    for (int i = 0; i < expressions.size(); i++) {
        Expression expression = expressions.get(i);
        type = expression.load(ctx);
        if (i != expressions.size() - 1) {
            if (type.getSize() == 1)
                g.pop();
            if (type.getSize() == 2)
                g.pop2();
        }
    }

    return type;
}

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From source file:io.datakernel.codegen.Utils.java

License:Apache License

public static void cast(Context ctx, Type type, Type targetType) {
    GeneratorAdapter g = ctx.getGeneratorAdapter();

    if (type.equals(targetType)) {
        return;//from  w  w  w .j a  v  a 2  s . c om
    }

    if (targetType == Type.VOID_TYPE) {
        if (type.getSize() == 1)
            g.pop();
        if (type.getSize() == 2)
            g.pop2();
        return;
    }

    if (type == Type.VOID_TYPE) {
        throw new RuntimeException(format("Can't cast VOID_TYPE to %s. %s", targetType.getClassName(),
                exceptionInGeneratedClass(ctx)));
    }

    if (type.equals(ctx.getThisType())) {
        final Class<?> javaType = getJavaType(ctx.getClassLoader(), targetType);
        for (Class<?> aClass : ctx.getOtherClasses()) {
            if (javaType.isAssignableFrom(aClass)) {
                return;
            }
        }
        throw new RuntimeException(format("Can't cast self %s to %s, %s", type.getClassName(),
                targetType.getClassName(), exceptionInGeneratedClass(ctx)));
    }

    if (!type.equals(ctx.getThisType()) && !targetType.equals(ctx.getThisType())
            && getJavaType(ctx.getClassLoader(), targetType)
                    .isAssignableFrom(getJavaType(ctx.getClassLoader(), type))) {
        return;
    }

    if (targetType.equals(getType(Object.class)) && isPrimitiveType(type)) {
        g.box(type);
        g.cast(wrap(type), getType(Object.class));
        return;
    }

    if ((isPrimitiveType(type) || isWrapperType(type))
            && (isPrimitiveType(targetType) || isWrapperType(targetType))) {

        Type targetTypePrimitive = isPrimitiveType(targetType) ? targetType : unwrap(targetType);

        if (isWrapperType(type)) {
            g.invokeVirtual(type, primitiveValueMethod(targetType));
            return;
        }

        assert isPrimitiveType(type);

        if (type != targetTypePrimitive) {
            g.cast(type, targetTypePrimitive);
        }

        if (isWrapperType(targetType)) {
            g.valueOf(targetTypePrimitive);
        }

        return;
    }

    g.checkCast(targetType);
}

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From source file:io.datakernel.codegen.VarField.java

License:Apache License

public static void setField(Context ctx, Type ownerType, String field, Type valueType, boolean isStatic) {
    GeneratorAdapter g = ctx.getGeneratorAdapter();

    Class<?> valueClass = getJavaType(ctx.getClassLoader(), valueType);

    if (ctx.getThisType().equals(ownerType)) {
        Map<String, Class<?>> fieldNameToClass = (isStatic) ? ctx.getStaticFields() : ctx.getThisFields();
        Class<?> fieldClass = fieldNameToClass.get(field);
        if (fieldClass == null) {
            throw new RuntimeException(format("No field \"%s\" in generated class %s. %s", field,
                    ctx.getThisType().getClassName(), exceptionInGeneratedClass(ctx)));
        }//from w  w w  .j  a va 2s .com

        Type fieldType = getType(fieldClass);
        cast(ctx, valueType, fieldType);
        if (isStatic)
            g.putStatic(ownerType, field, fieldType);
        else
            g.putField(ownerType, field, fieldType);

        return;
    }

    Class<?> argumentClass = getJavaType(ctx.getClassLoader(), ownerType);

    try {
        java.lang.reflect.Field javaField = argumentClass.getField(field);
        if (Modifier.isPublic(javaField.getModifiers())
                && Modifier.isStatic(javaField.getModifiers()) == isStatic) {
            Type fieldType = getType(javaField.getType());
            cast(ctx, valueType, fieldType);
            if (Modifier.isStatic(javaField.getModifiers()))
                g.putStatic(ownerType, field, fieldType);
            else
                g.putField(ownerType, field, fieldType);
            return;
        }
    } catch (NoSuchFieldException ignored) {
    }

    java.lang.reflect.Method javaSetter = tryFindSetter(argumentClass, field, valueClass);

    if (javaSetter == null && Primitives.isWrapperType(valueClass)) {
        javaSetter = tryFindSetter(argumentClass, field, Primitives.unwrap(valueClass));
    }

    if (javaSetter == null && valueClass.isPrimitive()) {
        javaSetter = tryFindSetter(argumentClass, field, Primitives.wrap(valueClass));
    }

    if (javaSetter == null) {
        javaSetter = tryFindSetter(argumentClass, field);
    }

    if (javaSetter != null) {
        Type fieldType = getType(javaSetter.getParameterTypes()[0]);
        cast(ctx, valueType, fieldType);
        invokeVirtualOrInterface(g, argumentClass, getMethod(javaSetter));
        Type returnType = getType(javaSetter.getReturnType());
        if (returnType.getSize() == 1) {
            g.pop();
        } else if (returnType.getSize() == 2) {
            g.pop2();
        }
        return;
    }

    throw new RuntimeException(format("No public field or setter for class %s for field \"%s\". %s ",
            ownerType.getClassName(), field, exceptionInGeneratedClass(ctx)));
}

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From source file:lucee.transformer.bytecode.util.ASMUtil.java

License:Open Source License

/**
 * @param adapter/*from ww w.  ja v a2  s .co  m*/
 * @param expr
 * @param mode
 */
public static void pop(GeneratorAdapter adapter, Expression expr, int mode) {
    if (mode == Expression.MODE_VALUE && (expr instanceof ExprDouble))
        adapter.pop2();
    else
        adapter.pop();
}

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From source file:lucee.transformer.bytecode.util.ASMUtil.java

License:Open Source License

public static void pop(GeneratorAdapter adapter, Type type) {
    if (type.equals(Types.DOUBLE_VALUE))
        adapter.pop2();
    else if (type.equals(Types.VOID))
        ;//from   w w  w . j  a v a 2 s .co  m
    else
        adapter.pop();
}

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