| /* |
| * |
| * 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 java.io.Reader; |
| import java.util.Collection; |
| |
| import org.apache.royale.compiler.internal.parsing.ISourceFragment; |
| import org.apache.royale.compiler.internal.parsing.SourceFragment; |
| import org.apache.royale.compiler.internal.parsing.SourceFragmentsReader; |
| import org.apache.royale.compiler.internal.parsing.as.ASParser; |
| import org.apache.royale.compiler.internal.parsing.as.OffsetLookup; |
| import org.apache.royale.compiler.internal.scopes.MXMLFileScope; |
| import org.apache.royale.compiler.internal.tree.as.ExpressionNodeBase; |
| import org.apache.royale.compiler.internal.tree.as.NodeBase; |
| import org.apache.royale.compiler.internal.workspaces.Workspace; |
| import org.apache.royale.compiler.mxml.IMXMLTagAttributeData; |
| import org.apache.royale.compiler.problems.ICompilerProblem; |
| import org.apache.royale.compiler.tree.ASTNodeID; |
| import org.apache.royale.compiler.tree.as.IASNode; |
| import org.apache.royale.compiler.tree.as.IExpressionNode; |
| import org.apache.royale.compiler.tree.mxml.IMXMLBindingAttributeNode; |
| |
| /** |
| * Implementation of the {@code IMXMLBindingAttributeNode} interface. |
| */ |
| class MXMLBindingAttributeNode extends MXMLNodeBase implements IMXMLBindingAttributeNode |
| { |
| /** |
| * Constructor |
| * |
| * @param parent The parent node of this node, or <code>null</code> if there |
| * is no parent. |
| */ |
| MXMLBindingAttributeNode(NodeBase parent) |
| { |
| super(parent); |
| } |
| |
| /** |
| * Constructor |
| * |
| * @param parent The parent node of this node |
| * @param expr The IExpressionNode for this BindingAttributeNode |
| */ |
| MXMLBindingAttributeNode(NodeBase parent, IExpressionNode expr) |
| { |
| super(parent); |
| this.expressionNode = expr; |
| } |
| |
| private String attributeName; // "source" or "destination" |
| |
| private IExpressionNode expressionNode; |
| |
| @Override |
| public ASTNodeID getNodeID() |
| { |
| // TODO Auto-generated method stub |
| return ASTNodeID.MXMLBindingAttributeID; |
| } |
| |
| @Override |
| public String getName() |
| { |
| return attributeName; |
| } |
| |
| public void setName(String s) |
| { |
| attributeName = s; |
| } |
| |
| @Override |
| public int getChildCount() |
| { |
| return expressionNode != null ? 1 : 0; |
| } |
| |
| @Override |
| public IASNode getChild(int i) |
| { |
| return i == 0 ? expressionNode : null; |
| } |
| |
| @Override |
| public IExpressionNode getExpressionNode() |
| { |
| return expressionNode; |
| } |
| |
| public void initializeFromAttribute(MXMLTreeBuilder builder, |
| IMXMLTagAttributeData attribute) |
| { |
| attributeName = attribute.getName(); |
| setLocation(attribute); |
| expressionNode = createExpressionNode(builder, attribute); |
| |
| // ASParser creates the ExpressionNodeBase as a child of a FileNode. |
| // Make it a child of the this MXMLBindingAttributeNode. |
| if (expressionNode != null) |
| ((ExpressionNodeBase)expressionNode).setParent(this); |
| } |
| |
| private IExpressionNode createExpressionNode(MXMLTreeBuilder builder, |
| IMXMLTagAttributeData attribute) |
| { |
| Workspace workspace = builder.getWorkspace(); |
| Collection<ICompilerProblem> problems = builder.getProblems(); |
| |
| ISourceFragment[] fragments = attribute.getValueFragments(problems); |
| |
| // Adjust fragment offsets from local to absolute, |
| // to take into account include files, source attributes, etc. |
| final MXMLFileScope fileScope = builder.getFileScope(); |
| final OffsetLookup offsetLookup = fileScope.getOffsetLookup(); |
| assert offsetLookup != null : "Expected OffsetLookup on FileScope."; |
| for (ISourceFragment fragment : fragments) |
| { |
| int physicalStart = fragment.getPhysicalStart(); |
| final int[] absoluteOffsets = offsetLookup.getAbsoluteOffset(attribute.getSourcePath(), physicalStart); |
| ((SourceFragment)fragment).setPhysicalStart(absoluteOffsets[0]); |
| } |
| |
| // Parse the fragments inside the databinding expression. |
| Reader reader = new SourceFragmentsReader(attribute.getSourcePath(), fragments); |
| return ASParser.parseDataBinding(workspace, reader, problems); |
| } |
| |
| /** |
| * For debugging only. Builds a string such as <code>"source"</code> from |
| * the attribute name. |
| */ |
| @Override |
| protected boolean buildInnerString(StringBuilder sb) |
| { |
| sb.append('"'); |
| sb.append(getName()); |
| sb.append('"'); |
| |
| return true; |
| } |
| } |