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

org.codehaus.groovy.ast.expr.Expression
Represents a base class for expressions which evaluate as an object @author James Strachan @version $Revision: 17114 $

         ClassNode objectCN = getClassNode(Object.class);
         return new VariableExpression(name, objectCN);
      }
      else
      {
         Expression left = createExpr(packageName.subList(0, packageName.size() - 1));
         ConstantExpression right = new ConstantExpression(packageName.get(packageName.size() - 1));
         return new PropertyExpression(left, right);
      }
   }

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        Map attributes = this.annotation.getMembers();
        for(Iterator it = attributes.entrySet().iterator(); it.hasNext(); ) {
            Map.Entry entry = (Map.Entry) it.next();
            String attrName = (String) entry.getKey();
            Expression attrExpr = (Expression) entry.getValue();
            Class attrType = getAttributeType(attrName);
            if(attrType == null) {
                addError("Unknown attribute '" + attrName + "'", attrExpr);
                break;
            }

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        Statement stat = (Statement) stats.get(0);
        if (!(stat instanceof ExpressionStatement))
            return null;


        Expression expr = ((ExpressionStatement) stat).getExpression();
        if (!(expr instanceof ConstructorCallExpression))
            return null;


        return (ConstructorCallExpression) expr;
    }

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            out.println(");");
            return;
        }


        // Otherwise try the older method based on the constructor's call expression
        Expression arguments = constrCall.getArguments();


        if (constrCall.isSuperCall()) {
            out.print("super(");
        }
        else {
            out.print("this(");
        }


        // Else try to render some arguments
        if (arguments instanceof ArgumentListExpression) {
            ArgumentListExpression argumentListExpression = (ArgumentListExpression) arguments;
            List args = argumentListExpression.getExpressions();


            for (Iterator it = args.iterator(); it.hasNext();) {
                Expression arg = (Expression) it.next();


                if (arg instanceof ConstantExpression) {
                    ConstantExpression expression = (ConstantExpression) arg;
                    Object o = expression.getValue();


                    if (o instanceof String) {
                        out.print("(String)null");
                    } else {
                        out.print(expression.getText());
                    }
                } else {
                    printDefaultValue(out, arg.getType());
                }


                if (arg != args.get(args.size() - 1)) {
                    out.print(", ");
                }

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        Statement stat = (Statement) stats.get(0);
        if (!(stat instanceof ExpressionStatement))
            return null;


        Expression expr = ((ExpressionStatement) stat).getExpression();
        if (!(expr instanceof ConstructorCallExpression))
            return null;


        return (ConstructorCallExpression) expr;
    }

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            out.println(");");
            return;
        }


        // Otherwise try the older method based on the constructor's call expression
        Expression arguments = constrCall.getArguments();


        if (constrCall.isSuperCall()) {
            out.print("super(");
        }
        else {
            out.print("this(");
        }


        // Else try to render some arguments
        if (arguments instanceof ArgumentListExpression) {
            ArgumentListExpression argumentListExpression = (ArgumentListExpression) arguments;
            List args = argumentListExpression.getExpressions();


            for (Iterator it = args.iterator(); it.hasNext();) {
                Expression arg = (Expression) it.next();


                if (arg instanceof ConstantExpression) {
                    ConstantExpression expression = (ConstantExpression) arg;
                    Object o = expression.getValue();


                    if (o instanceof String) {
                        out.print("(String)null");
                    } else {
                        out.print(expression.getText());
                    }
                } else {
                    printDefaultValue(out, arg.getType());
                }


                if (arg != args.get(args.size() - 1)) {
                    out.print(", ");
                }

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        boolean hasExistingToString = hasDeclaredMethod(cNode, "toString", 0);
        if (hasExistingToString && hasDeclaredMethod(cNode, "_toString", 0)) return;


        final BlockStatement body = new BlockStatement();
        // def _result = new StringBuffer()
        final Expression result = new VariableExpression("_result");
        final Expression init = new ConstructorCallExpression(STRINGBUFFER_TYPE, MethodCallExpression.NO_ARGUMENTS);
        body.addStatement(new ExpressionStatement(new DeclarationExpression(result, ASSIGN, init)));


        body.addStatement(append(result, new ConstantExpression(cNode.getName())));
        body.addStatement(append(result, new ConstantExpression("(")));
        boolean first = true;
        List<PropertyNode> pList = getInstanceProperties(cNode);
        for (PropertyNode pNode : pList) {
            if (shouldSkip(pNode.getName(), excludes, includes)) continue;
            first = appendPrefix(cNode, body, result, first, pNode.getName());
            String getterName = "get" + Verifier.capitalize(pNode.getName());
            Expression getter = new MethodCallExpression(VariableExpression.THIS_EXPRESSION, getterName, MethodCallExpression.NO_ARGUMENTS);
            body.addStatement(append(result, new StaticMethodCallExpression(INVOKER_TYPE, "toString", getter)));
        }
        List<FieldNode> fList = new ArrayList<FieldNode>();
        if (includeFields) {
            fList.addAll(getInstanceNonPropertyFields(cNode));

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        }
        this.sourceUnit = sourceUnit;
    }


    protected boolean memberHasValue(AnnotationNode node, String name, Object value) {
        final Expression member = node.getMember(name);
        return member != null && member instanceof ConstantExpression && ((ConstantExpression) member).getValue().equals(value);
    }

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        final Expression member = node.getMember(name);
        return member != null && member instanceof ConstantExpression && ((ConstantExpression) member).getValue().equals(value);
    }


    protected Object getMemberValue(AnnotationNode node, String name) {
        final Expression member = node.getMember(name);
        if (member != null && member instanceof ConstantExpression) return ((ConstantExpression) member).getValue();
        return null;
    }

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        }


        AnnotatedNode parent = (AnnotatedNode) nodes[1];
        AnnotationNode node = (AnnotationNode) nodes[0];
        if (!MY_TYPE.equals(node.getClassNode())) return;
        Expression valueExpr = node.getMember("value");
        String value = null;
        if (valueExpr instanceof ConstantExpression) {
            ConstantExpression ce = (ConstantExpression) valueExpr;
            Object valueObject = ce.getValue();
            if (valueObject != null) value = valueObject.toString();

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