Improved HTML parsing

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/html/ast/HtmlScriptTagNode.java

+/*
+ * Copyright (c) 2013, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
+ * 
+ * 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 com.google.dart.engine.html.ast;
+
+import com.google.dart.engine.ast.CompilationUnit;
+import com.google.dart.engine.element.HtmlScriptElement;
+import com.google.dart.engine.html.ast.visitor.XmlVisitor;
+import com.google.dart.engine.html.scanner.Token;
+
+import java.util.List;
+
+/**
+ * Instances of the class {@code HtmlScriptTagNode} represent a script tag within an HTML file that
+ * references a Dart script.
+ */
+public class HtmlScriptTagNode extends XmlTagNode {
+  /**
+   * The AST structure representing the Dart code within this tag.
+   */
+  private CompilationUnit script;
+
+  /**
+   * The element representing this script.
+   */
+  private HtmlScriptElement scriptElement;
+
+  /**
+   * Initialize a newly created node to represent a script tag within an HTML file that references a
+   * Dart script.
+   * 
+   * @param nodeStart the token marking the beginning of the tag
+   * @param tag the name of the tag
+   * @param attributes the attributes in the tag
+   * @param attributeEnd the token terminating the region where attributes can be
+   * @param tagNodes the children of the tag
+   * @param contentEnd the token that starts the closing tag
+   * @param closingTag the name of the tag that occurs in the closing tag
+   * @param nodeEnd the last token in the tag
+   */
+  public HtmlScriptTagNode(Token nodeStart, Token tag, List<XmlAttributeNode> attributes,
+      Token attributeEnd, List<XmlTagNode> tagNodes, Token contentEnd, Token closingTag,
+      Token nodeEnd) {
+    super(nodeStart, tag, attributes, attributeEnd, tagNodes, contentEnd, closingTag, nodeEnd);
+  }
+
+  @Override
+  public <R> R accept(XmlVisitor<R> visitor) {
+    return visitor.visitHtmlScriptTagNode(this);
+  }
+
+  /**
+   * Return the AST structure representing the Dart code within this tag, or {@code null} if this
+   * tag references an external script.
+   * 
+   * @return the AST structure representing the Dart code within this tag
+   */
+  public CompilationUnit getScript() {
+    return script;
+  }
+
+  /**
+   * Return the element representing this script.
+   * 
+   * @return the element representing this script
+   */
+  public HtmlScriptElement getScriptElement() {
+    return scriptElement;
+  }
+
+  /**
+   * Set the AST structure representing the Dart code within this tag to the given compilation unit.
+   * 
+   * @param unit the AST structure representing the Dart code within this tag
+   */
+  public void setScript(CompilationUnit unit) {
+    script = unit;
+  }
+
+  /**
+   * Set the element representing this script to the given element.
+   * 
+   * @param scriptElement the element representing this script
+   */
+  public void setScriptElement(HtmlScriptElement scriptElement) {
+    this.scriptElement = scriptElement;
+  }
+}