Examples of org.codehaus.groovy.ast.expr.BooleanExpression

org.codehaus.groovy.ast.expr.BooleanExpression
Represents a boolean expression @author James Strachan @version $Revision: 21223 $

    public static BooleanExpression isInstanceOf(Expression objectExpression, ClassNode cNode) {
        return new BooleanExpression(new BinaryExpression(objectExpression, INSTANCEOF, new ClassExpression(cNode)));
    }


    public static BooleanExpression equalsNullExpr(Expression argExpr) {
        return new BooleanExpression(new BinaryExpression(argExpr, COMPARE_EQUAL, ConstantExpression.NULL));
    }

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    public static BooleanExpression equalsNullExpr(Expression argExpr) {
        return new BooleanExpression(new BinaryExpression(argExpr, COMPARE_EQUAL, ConstantExpression.NULL));
    }


    public static BooleanExpression isZeroExpr(Expression expr) {
        return new BooleanExpression(new BinaryExpression(expr, COMPARE_EQUAL, new ConstantExpression(0)));
    }

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    }


    private static BooleanExpression notEqualsFieldExpr(FieldNode fNode, Expression other) {
        final Expression fieldExpr = new VariableExpression(fNode);
        final Expression otherExpr = new PropertyExpression(other, fNode.getName());
        return new BooleanExpression(new BinaryExpression(fieldExpr, COMPARE_NOT_EQUAL, otherExpr));
    }

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    private static BooleanExpression notEqualsPropertyExpr(PropertyNode pNode, Expression other) {
        String getterName = "get" + Verifier.capitalize(pNode.getName());
        Expression selfGetter = new MethodCallExpression(VariableExpression.THIS_EXPRESSION, getterName, MethodCallExpression.NO_ARGUMENTS);
        Expression otherGetter = new MethodCallExpression(other, getterName, MethodCallExpression.NO_ARGUMENTS);
        return new BooleanExpression(new BinaryExpression(selfGetter, COMPARE_NOT_EQUAL, otherGetter));
    }

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        Expression otherGetter = new MethodCallExpression(other, getterName, MethodCallExpression.NO_ARGUMENTS);
        return new BooleanExpression(new BinaryExpression(selfGetter, COMPARE_NOT_EQUAL, otherGetter));
    }


    private static BooleanExpression identicalExpr(Expression self, Expression other) {
        return new BooleanExpression(new MethodCallExpression(self, "is", new ArgumentListExpression(other)));
    }

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    private static BooleanExpression identicalExpr(Expression self, Expression other) {
        return new BooleanExpression(new MethodCallExpression(self, "is", new ArgumentListExpression(other)));
    }


    private static BooleanExpression notEqualClasses(ClassNode cNode, Expression other) {
        return new BooleanExpression(new BinaryExpression(new ClassExpression(cNode), COMPARE_NOT_EQUAL,
                new MethodCallExpression(other, "getClass", MethodCallExpression.NO_ARGUMENTS)));
    }

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        return new BooleanExpression(new BinaryExpression(new ClassExpression(cNode), COMPARE_NOT_EQUAL,
                new MethodCallExpression(other, "getClass", MethodCallExpression.NO_ARGUMENTS)));
    }


    public static BooleanExpression isInstanceof(ClassNode cNode, Expression other) {
        return new BooleanExpression(new BinaryExpression(other, INSTANCEOF, new ClassExpression(cNode)));
    }

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    public static boolean isOrImplements(ClassNode fieldType, ClassNode interfaceType) {
        return fieldType.equals(interfaceType) || fieldType.implementsInterface(interfaceType);
    }


    public static BooleanExpression isTrueExpr(Expression argExpr) {
        return new BooleanExpression(new BinaryExpression(argExpr, COMPARE_EQUAL, ConstantExpression.TRUE));
    }

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    public static BooleanExpression isTrueExpr(Expression argExpr) {
        return new BooleanExpression(new BinaryExpression(argExpr, COMPARE_EQUAL, ConstantExpression.TRUE));
    }


    public static BooleanExpression isOneExpr(Expression expr) {
        return new BooleanExpression(new BinaryExpression(expr, COMPARE_EQUAL, new ConstantExpression(1)));
    }

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        classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));
        classNode.addProperty(new PropertyNode("bar", ACC_PUBLIC, ClassHelper.STRING_TYPE, classNode, null, null, null));


        classNode.addProperty(new PropertyNode("result", ACC_PUBLIC, ClassHelper.STRING_TYPE, classNode, null, null, null));


        BooleanExpression expression =
                new BooleanExpression(
                        new BinaryExpression(
                                new FieldExpression(
                                        new FieldNode("bar", ACC_PRIVATE, ClassHelper.STRING_TYPE, classNode, ConstantExpression.NULL)),
                                Token.newSymbol("==", 0, 0),
                                new ConstantExpression("abc")));

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