Examples of org.codehaus.groovy.ast.Variable

org.codehaus.groovy.ast.Variable
interface to mark a AstNode as Variable. Typically these are VariableExpression, FieldNode, PropertyNode and Parameter @author Jochen Theodorou

            if (ve.getAccessedVariable() instanceof FieldNode) {
                FieldNode fn = (FieldNode) ve.getAccessedVariable();
                if (!fn.getDeclaringClass().equals(current)) return OBJECT_TYPE;
            }
        } else if (exp instanceof Variable) {
            Variable v = (Variable) exp;
            type = v.getOriginType();
        } else {
            type = exp.getType();
        }
        return type.redirect();
    }

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            parameters = Parameter.EMPTY_ARRAY;
        } else if (parameters.length == 0) {
            // let's create a default 'it' parameter
            Parameter it = new Parameter(ClassHelper.OBJECT_TYPE, "it", ConstantExpression.NULL);
            parameters = new Parameter[]{it};
            Variable ref = expression.getVariableScope().getDeclaredVariable("it");
            if (ref!=null) it.setClosureSharedVariable(ref.isClosureSharedVariable());
        }


        Parameter[] localVariableParams = getClosureSharedVariables(expression);
        removeInitialValues(localVariableParams);

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    private void correctAccessedVariable(final InnerClassNode closureClass, ClosureExpression ce) {
        CodeVisitorSupport visitor = new CodeVisitorSupport() {
            @Override
            public void visitVariableExpression(VariableExpression expression) {
                Variable v = expression.getAccessedVariable(); 
                if (v==null) return;
                if (!(v instanceof FieldNode)) return;
                String name = expression.getName();
                FieldNode fn = closureClass.getDeclaredField(name);
                if (fn != null) { // only overwrite if we find something more specific

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    protected Parameter[] getClosureSharedVariables(ClosureExpression ce) {
        VariableScope scope = ce.getVariableScope();
        Parameter[] ret = new Parameter[scope.getReferencedLocalVariablesCount()];
        int index = 0;
        for (Iterator iter = scope.getReferencedLocalVariablesIterator(); iter.hasNext();) {
            Variable element = (org.codehaus.groovy.ast.Variable) iter.next();
            Parameter p = new Parameter(element.getType(), element.getName());
            p.setOriginType(element.getOriginType());
            p.setClosureSharedVariable(element.isClosureSharedVariable());
            ret[index] = p;
            index++;
        }
        return ret;
    }

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        }
    }


    private void checkFinalFieldAccess(Expression expression) {
        if (!(expression instanceof VariableExpression) && !(expression instanceof PropertyExpression)) return;
        Variable v = null;
        if (expression instanceof VariableExpression) {
            VariableExpression ve = (VariableExpression) expression;
            v = ve.getAccessedVariable();
        } else {
          PropertyExpression propExp = ((PropertyExpression) expression);

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        for (PropertyNode pn : cn.getProperties()) {
            if (pn.getName().equals(name)) return pn;
        }


        Variable ret = findClassMember(cn.getSuperClass(), name);
        if (ret != null) return ret;
        return findClassMember(cn.getOuterClass(), name);
    }

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    private Variable checkVariableNameForDeclaration(String name, Expression expression) {
        if ("super".equals(name) || "this".equals(name)) return null;


        VariableScope scope = currentScope;
        Variable var = new DynamicVariable(name, currentScope.isInStaticContext());
        // try to find a declaration of a variable
        while (true) {
            Variable var1;
            var1 = scope.getDeclaredVariable(var.getName());


            if (var1 != null) {
                var = var1;
                break;
            }


            var1 = scope.getReferencedLocalVariable(var.getName());
            if (var1 != null) {
                var = var1;
                break;
            }


            var1 = scope.getReferencedClassVariable(var.getName());
            if (var1 != null) {
                var = var1;
                break;
            }


            ClassNode classScope = scope.getClassScope();
            if (classScope != null) {
                Variable member = findClassMember(classScope, var.getName());
                if (member != null) {
                    boolean staticScope = currentScope.isInStaticContext() || isSpecialConstructorCall;
                    boolean staticMember = member.isInStaticContext();
                    // We don't allow a static context (e.g. a static method) to access
                    // a non-static variable (e.g. a non-static field).
                    if (! (staticScope && ! staticMember))
                        var = member;
                }

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        VariableExpression ve = (VariableExpression) object;
        if (!ve.getName().equals("this")) return;
        String name = pe.getPropertyAsString();
        if (name.equals("class")) return;
        if (name == null) return;
        Variable member = findClassMember(currentClass, name);
        if (member == null) return;
        checkVariableContextAccess(member, pe);
    }

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        }
    }


    public void visitVariableExpression(VariableExpression expression) {
        String name = expression.getName();
        Variable v = checkVariableNameForDeclaration(name, expression);
        if (v == null) return;
        expression.setAccessedVariable(v);
        checkVariableContextAccess(v, expression);
    }

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    }


    public void visitFieldExpression(FieldExpression expression) {
        String name = expression.getFieldName();
        //TODO: change that to get the correct scope
        Variable v = checkVariableNameForDeclaration(name, expression);
        checkVariableContextAccess(v, expression);
    }

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