| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.royale.compiler.internal.tree.mxml; |
| |
| import org.apache.royale.compiler.constants.IASLanguageConstants; |
| import org.apache.royale.compiler.internal.projects.RoyaleProject; |
| import org.apache.royale.compiler.internal.tree.as.NodeBase; |
| import org.apache.royale.compiler.mxml.IMXMLLanguageConstants; |
| import org.apache.royale.compiler.mxml.IMXMLTagAttributeData; |
| import org.apache.royale.compiler.mxml.IMXMLTagData; |
| import org.apache.royale.compiler.problems.ICompilerProblem; |
| import org.apache.royale.compiler.problems.MXMLEmptyAttributeProblem; |
| import org.apache.royale.compiler.problems.MXMLRequiredAttributeProblem; |
| import org.apache.royale.compiler.problems.MXMLSameBindingSourceAndDestinationProblem; |
| import org.apache.royale.compiler.tree.ASTNodeID; |
| import org.apache.royale.compiler.tree.as.IASNode; |
| import org.apache.royale.compiler.tree.mxml.IMXMLBindingAttributeNode; |
| import org.apache.royale.compiler.tree.mxml.IMXMLBindingNode; |
| |
| import static org.apache.royale.compiler.mxml.IMXMLLanguageConstants.*; |
| |
| /** |
| * Implementation of the {@code IMXMLBindingNode} interface. |
| */ |
| class MXMLBindingNode extends MXMLNodeBase implements IMXMLBindingNode |
| { |
| /** |
| * Constructor |
| * |
| * @param parent The parent node of this node, or <code>null</code> if there |
| * is no parent. |
| */ |
| MXMLBindingNode(NodeBase parent) |
| { |
| super(parent); |
| } |
| |
| private IMXMLBindingAttributeNode[] children = null; |
| |
| private MXMLBindingAttributeNode sourceAttributeNode = null; |
| |
| private MXMLBindingAttributeNode destinationAttributeNode = null; |
| |
| private boolean twoWay = false; |
| |
| @Override |
| public ASTNodeID getNodeID() |
| { |
| return ASTNodeID.MXMLBindingID; |
| } |
| |
| @Override |
| public String getName() |
| { |
| return IMXMLLanguageConstants.BINDING; |
| } |
| |
| @Override |
| public int getChildCount() |
| { |
| return children != null ? children.length : 0; |
| } |
| |
| @Override |
| public IASNode getChild(int i) |
| { |
| return children != null ? children[i] : null; |
| } |
| |
| @Override |
| protected MXMLNodeInfo createNodeInfo(MXMLTreeBuilder builder) |
| { |
| return new MXMLNodeInfo(builder); |
| } |
| |
| @Override |
| protected void processTagSpecificAttribute(MXMLTreeBuilder builder, IMXMLTagData tag, |
| IMXMLTagAttributeData attribute, |
| MXMLNodeInfo info) |
| { |
| if (attribute.isSpecialAttribute(ATTRIBUTE_SOURCE)) |
| { |
| sourceAttributeNode = new MXMLBindingAttributeNode(this); |
| sourceAttributeNode.initializeFromAttribute(builder, attribute); |
| info.addChildNode(sourceAttributeNode); |
| } |
| else if (attribute.isSpecialAttribute(ATTRIBUTE_DESTINATION)) |
| { |
| destinationAttributeNode = new MXMLBindingAttributeNode(this); |
| destinationAttributeNode.initializeFromAttribute(builder, attribute); |
| info.addChildNode(destinationAttributeNode); |
| } |
| else if (attribute.isSpecialAttribute(ATTRIBUTE_TWO_WAY)) |
| { |
| String value = attribute.getMXMLDialect().trim(attribute.getRawValue()); |
| if (value.equals(IASLanguageConstants.TRUE)) |
| twoWay = true; |
| else if (value.equals(IASLanguageConstants.FALSE)) |
| twoWay = false; |
| else |
| { |
| // TODO Report a problem; |
| } |
| } |
| else |
| { |
| super.processTagSpecificAttribute(builder, tag, attribute, info); |
| } |
| } |
| |
| @Override |
| protected void initializationComplete(MXMLTreeBuilder builder, IMXMLTagData tag, |
| MXMLNodeInfo info) |
| { |
| super.initializationComplete(builder, tag, info); |
| |
| children = info.getChildNodeList().toArray(new IMXMLBindingAttributeNode[0]); |
| |
| // Add an expression dependency on mx.binding.BindingManager. |
| RoyaleProject project = builder.getProject(); |
| builder.addExpressionDependency(project.getBindingManagerClass()); |
| |
| // Do some semantic checks. |
| |
| IMXMLTagAttributeData sourceAttribute = tag.getTagAttributeData(ATTRIBUTE_SOURCE); |
| IMXMLTagAttributeData destinationAttribute = tag.getTagAttributeData(ATTRIBUTE_DESTINATION); |
| |
| String trimmedSourceValue = null; |
| String trimmedDestinationValue = null; |
| |
| if (sourceAttribute == null) |
| { |
| // 'source' attribute is required |
| ICompilerProblem problem = new MXMLRequiredAttributeProblem(tag, ATTRIBUTE_SOURCE); |
| builder.addProblem(problem); |
| markInvalidForCodeGen(); |
| } |
| else |
| { |
| trimmedSourceValue = builder.getMXMLDialect().trim(sourceAttribute.getRawValue()); |
| if (trimmedSourceValue.isEmpty()) |
| { |
| // 'source' attribute value cannot be empty |
| ICompilerProblem problem = new MXMLEmptyAttributeProblem(sourceAttribute); |
| builder.addProblem(problem); |
| markInvalidForCodeGen(); |
| } |
| } |
| |
| if (destinationAttribute == null) |
| { |
| // 'destination' attribute is required |
| ICompilerProblem problem = new MXMLRequiredAttributeProblem(tag, ATTRIBUTE_DESTINATION); |
| builder.addProblem(problem); |
| markInvalidForCodeGen(); |
| } |
| else |
| { |
| trimmedDestinationValue = builder.getMXMLDialect().trim(destinationAttribute.getRawValue()); |
| if (trimmedDestinationValue.isEmpty()) |
| { |
| // 'destination' attribute value cannot be empty |
| ICompilerProblem problem = new MXMLEmptyAttributeProblem(destinationAttribute); |
| builder.addProblem(problem); |
| markInvalidForCodeGen(); |
| } |
| } |
| |
| if (trimmedSourceValue != null && !trimmedSourceValue.isEmpty() && |
| trimmedDestinationValue != null && !trimmedDestinationValue.isEmpty() && |
| trimmedSourceValue.equals(trimmedDestinationValue)) |
| { |
| // 'source' and 'destination' values cannot be the same |
| // TODO "a.b" and "a . b" won't be detected as the same. |
| // Should we compare tokens instead? |
| ICompilerProblem problem = new MXMLSameBindingSourceAndDestinationProblem(tag); |
| builder.addProblem(problem); |
| markInvalidForCodeGen(); |
| } |
| } |
| |
| @Override |
| public IMXMLBindingAttributeNode getSourceAttributeNode() |
| { |
| return sourceAttributeNode; |
| } |
| |
| @Override |
| public IMXMLBindingAttributeNode getDestinationAttributeNode() |
| { |
| return destinationAttributeNode; |
| } |
| |
| @Override |
| public boolean getTwoWay() |
| { |
| return twoWay; |
| } |
| |
| /** |
| * For debugging only. Builds a string such as <code>twoWay="true"</code> |
| * from the attribute name. |
| */ |
| @Override |
| protected boolean buildInnerString(StringBuilder sb) |
| { |
| sb.append("twoWay"); |
| sb.append('='); |
| sb.append('"'); |
| sb.append(twoWay); |
| sb.append('"'); |
| |
| return true; |
| } |
| |
| /** |
| * Set the destination attribute node - used when creating synthetic |
| * MXMLBindingNodes |
| */ |
| void setDestinationAttributeNode(MXMLBindingAttributeNode dest) |
| { |
| this.destinationAttributeNode = dest; |
| } |
| |
| /** |
| * Set the source attribute node - used when creating synthetic |
| * MXMLBindingNodes |
| */ |
| void setSourceAttributeNode(MXMLBindingAttributeNode src) |
| { |
| this.sourceAttributeNode = src; |
| } |
| } |