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

org.codehaus.groovy.ast.expr.BinaryExpression
Represents two expressions and an operation @author James Strachan @version $Revision: 20590 $

            ListIterator<Statement> litr = blockStatements.listIterator();
            while (litr.hasNext()) {
                Statement stmt = litr.next();
                if (stmt instanceof ExpressionStatement &&
                        ((ExpressionStatement) stmt).getExpression() instanceof BinaryExpression) {
                    BinaryExpression bExp = (BinaryExpression) ((ExpressionStatement) stmt).getExpression();
                    if (bExp.getLeftExpression() instanceof FieldExpression) {
                        FieldExpression fExp = (FieldExpression) bExp.getLeftExpression();
                        if (fExp.getFieldName().equals("$VALUES")) {
                            for (Statement tmpStmt : staticFieldStatements) {
                                litr.add(tmpStmt);
                            }
                        }

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    public static Statement assignStatement(Expression fieldExpr, Expression value) {
        return new ExpressionStatement(assignExpr(fieldExpr, value));
    }


    private static Expression assignExpr(Expression expression, Expression value) {
        return new BinaryExpression(expression, ASSIGN, value);
    }

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    private static Expression assignExpr(Expression expression, Expression value) {
        return new BinaryExpression(expression, ASSIGN, value);
    }


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

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    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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    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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