Examples with PropertyNode org.codehaus.groovy.ast.PropertyNode used on opensource projects

Example 91 with PropertyNode

use of org.codehaus.groovy.ast.PropertyNode in project groovy by apache.

the class PropertyTest method testInheritedProperties.

public void testInheritedProperties() throws Exception {
    ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC + ACC_SUPER, ClassHelper.make(DummyBean.class));
    classNode.addProperty(new PropertyNode("bar", ACC_PUBLIC, ClassHelper.STRING_TYPE, classNode, null, null, null));
    Class fooClass = loadClass(classNode);
    assertTrue("Loaded a new class", fooClass != null);
    Object bean = fooClass.getDeclaredConstructor().newInstance();
    assertTrue("Managed to create bean", bean != null);
    assertField(fooClass, "bar", 0, ClassHelper.STRING_TYPE);
    assertGetProperty(bean, "name", "James");
    assertSetProperty(bean, "name", "Bob");
    assertGetProperty(bean, "bar", null);
    assertSetProperty(bean, "bar", "newValue");
}

Example 92 with PropertyNode

use of org.codehaus.groovy.ast.PropertyNode in project groovy-core by groovy.

the class CategoryASTTransformation method ensureNoInstanceFieldOrProperty.

private boolean ensureNoInstanceFieldOrProperty(final SourceUnit source, final ClassNode parent) {
    boolean valid = true;
    for (FieldNode fieldNode : parent.getFields()) {
        if (!fieldNode.isStatic() && fieldNode.getLineNumber() > 0) {
            // if <0, probably an AST transform or internal code (like generated metaclass field, ...)
            addUnsupportedError(fieldNode, source);
            valid = false;
        }
    }
    for (PropertyNode propertyNode : parent.getProperties()) {
        if (!propertyNode.isStatic() && propertyNode.getLineNumber() > 0) {
            // if <0, probably an AST transform or internal code (like generated metaclass field, ...)
            addUnsupportedError(propertyNode, source);
            valid = false;
        }
    }
    return valid;
}

Example 93 with PropertyNode

use of org.codehaus.groovy.ast.PropertyNode in project groovy-core by groovy.

the class CategoryASTTransformation method visit.

/**
 * Property invocations done on 'this' reference are transformed so that the invocations at runtime are
 * done on the additional parameter 'self'
 */
public void visit(ASTNode[] nodes, final SourceUnit source) {
    if (nodes.length != 2 || !(nodes[0] instanceof AnnotationNode) || !(nodes[1] instanceof ClassNode)) {
        source.getErrorCollector().addError(new SyntaxErrorMessage(new SyntaxException("@Category can only be added to a ClassNode but got: " + (nodes.length == 2 ? nodes[1] : "nothing"), nodes[0].getLineNumber(), nodes[0].getColumnNumber()), source));
    }
    AnnotationNode annotation = (AnnotationNode) nodes[0];
    ClassNode parent = (ClassNode) nodes[1];
    ClassNode targetClass = getTargetClass(source, annotation);
    thisExpression.setType(targetClass);
    final LinkedList<Set<String>> varStack = new LinkedList<Set<String>>();
    if (!ensureNoInstanceFieldOrProperty(source, parent))
        return;
    Set<String> names = new HashSet<String>();
    for (FieldNode field : parent.getFields()) {
        names.add(field.getName());
    }
    for (PropertyNode field : parent.getProperties()) {
        names.add(field.getName());
    }
    varStack.add(names);
    final Reference parameter = new Reference();
    final ClassCodeExpressionTransformer expressionTransformer = new ClassCodeExpressionTransformer() {

        protected SourceUnit getSourceUnit() {
            return source;
        }

        private void addVariablesToStack(Parameter[] params) {
            Set<String> names = new HashSet<String>();
            names.addAll(varStack.getLast());
            for (Parameter param : params) {
                names.add(param.getName());
            }
            varStack.add(names);
        }

        @Override
        public void visitCatchStatement(CatchStatement statement) {
            varStack.getLast().add(statement.getVariable().getName());
            super.visitCatchStatement(statement);
            varStack.getLast().remove(statement.getVariable().getName());
        }

        @Override
        public void visitMethod(MethodNode node) {
            addVariablesToStack(node.getParameters());
            super.visitMethod(node);
            varStack.removeLast();
        }

        @Override
        public void visitBlockStatement(BlockStatement block) {
            Set<String> names = new HashSet<String>();
            names.addAll(varStack.getLast());
            varStack.add(names);
            super.visitBlockStatement(block);
            varStack.remove(names);
        }

        @Override
        public void visitClosureExpression(ClosureExpression ce) {
            addVariablesToStack(ce.getParameters());
            super.visitClosureExpression(ce);
            varStack.removeLast();
        }

        @Override
        public void visitDeclarationExpression(DeclarationExpression expression) {
            if (expression.isMultipleAssignmentDeclaration()) {
                TupleExpression te = expression.getTupleExpression();
                List<Expression> list = te.getExpressions();
                for (Expression arg : list) {
                    VariableExpression ve = (VariableExpression) arg;
                    varStack.getLast().add(ve.getName());
                }
            } else {
                VariableExpression ve = expression.getVariableExpression();
                varStack.getLast().add(ve.getName());
            }
            super.visitDeclarationExpression(expression);
        }

        @Override
        public void visitForLoop(ForStatement forLoop) {
            Expression exp = forLoop.getCollectionExpression();
            exp.visit(this);
            Parameter loopParam = forLoop.getVariable();
            if (loopParam != null) {
                varStack.getLast().add(loopParam.getName());
            }
            super.visitForLoop(forLoop);
        }

        @Override
        public void visitExpressionStatement(ExpressionStatement es) {
            // GROOVY-3543: visit the declaration expressions so that declaration variables get added on the varStack
            Expression exp = es.getExpression();
            if (exp instanceof DeclarationExpression) {
                exp.visit(this);
            }
            super.visitExpressionStatement(es);
        }

        @Override
        public Expression transform(Expression exp) {
            if (exp instanceof VariableExpression) {
                VariableExpression ve = (VariableExpression) exp;
                if (ve.getName().equals("this"))
                    return thisExpression;
                else {
                    if (!varStack.getLast().contains(ve.getName())) {
                        return new PropertyExpression(thisExpression, ve.getName());
                    }
                }
            } else if (exp instanceof PropertyExpression) {
                PropertyExpression pe = (PropertyExpression) exp;
                if (pe.getObjectExpression() instanceof VariableExpression) {
                    VariableExpression vex = (VariableExpression) pe.getObjectExpression();
                    if (vex.isThisExpression()) {
                        pe.setObjectExpression(thisExpression);
                        return pe;
                    }
                }
            } else if (exp instanceof ClosureExpression) {
                ClosureExpression ce = (ClosureExpression) exp;
                ce.getVariableScope().putReferencedLocalVariable((Parameter) parameter.get());
                Parameter[] params = ce.getParameters();
                if (params == null) {
                    params = Parameter.EMPTY_ARRAY;
                } else if (params.length == 0) {
                    params = new Parameter[] { new Parameter(ClassHelper.OBJECT_TYPE, "it") };
                }
                addVariablesToStack(params);
                ce.getCode().visit(this);
                varStack.removeLast();
            }
            return super.transform(exp);
        }
    };
    for (MethodNode method : parent.getMethods()) {
        if (!method.isStatic()) {
            method.setModifiers(method.getModifiers() | Opcodes.ACC_STATIC);
            final Parameter[] origParams = method.getParameters();
            final Parameter[] newParams = new Parameter[origParams.length + 1];
            Parameter p = new Parameter(targetClass, "$this");
            p.setClosureSharedVariable(true);
            newParams[0] = p;
            parameter.set(p);
            System.arraycopy(origParams, 0, newParams, 1, origParams.length);
            method.setParameters(newParams);
            expressionTransformer.visitMethod(method);
        }
    }
    new VariableScopeVisitor(source, true).visitClass(parent);
}

Example 94 with PropertyNode

use of org.codehaus.groovy.ast.PropertyNode in project groovy-core by groovy.

the class SortableASTTransformation method findProperties.

private List<PropertyNode> findProperties(AnnotationNode annotation, ClassNode classNode, final List<String> includes, final List<String> excludes) {
    List<PropertyNode> properties = new ArrayList<PropertyNode>();
    for (PropertyNode property : classNode.getProperties()) {
        String propertyName = property.getName();
        if (property.isStatic() || excludes.contains(propertyName) || !includes.isEmpty() && !includes.contains(propertyName))
            continue;
        properties.add(property);
    }
    for (String name : includes) {
        checkKnownProperty(annotation, name, properties);
    }
    for (PropertyNode pNode : properties) {
        checkComparable(pNode);
    }
    if (!includes.isEmpty()) {
        Comparator<PropertyNode> includeComparator = new Comparator<PropertyNode>() {

            public int compare(PropertyNode o1, PropertyNode o2) {
                return new Integer(includes.indexOf(o1.getName())).compareTo(includes.indexOf(o2.getName()));
            }
        };
        Collections.sort(properties, includeComparator);
    }
    return properties;
}

Example 95 with PropertyNode

use of org.codehaus.groovy.ast.PropertyNode in project groovy-core by groovy.

the class SortableASTTransformation method createSortable.

private void createSortable(AnnotationNode annotation, ClassNode classNode) {
    List<String> includes = getMemberList(annotation, "includes");
    List<String> excludes = getMemberList(annotation, "excludes");
    if (!checkIncludeExclude(annotation, excludes, includes, MY_TYPE_NAME))
        return;
    if (classNode.isInterface()) {
        addError(MY_TYPE_NAME + " cannot be applied to interface " + classNode.getName(), annotation);
    }
    List<PropertyNode> properties = findProperties(annotation, classNode, includes, excludes);
    implementComparable(classNode);
    classNode.addMethod(new MethodNode("compareTo", ACC_PUBLIC, ClassHelper.int_TYPE, params(param(newClass(classNode), OTHER)), ClassNode.EMPTY_ARRAY, createCompareToMethodBody(properties)));
    for (PropertyNode property : properties) {
        createComparatorFor(classNode, property);
    }
    new VariableScopeVisitor(sourceUnit, true).visitClass(classNode);
}