/*
* Copyright 2012, 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.ast;
import com.google.dart.engine.scanner.Token;
import java.util.List;
/**
* Instances of the class {@code ListLiteral} represent a list literal.
*
* <pre>
* listLiteral ::=
* 'const'? ('<' {@link TypeName type} '>')? '[' ({@link Expression expressionList} ','?)? ']'
* </pre>
*
* @coverage dart.engine.ast
*/
public class ListLiteral extends TypedLiteral {
/**
* The left square bracket.
*/
private Token leftBracket;
/**
* The expressions used to compute the elements of the list.
*/
private NodeList<Expression> elements = new NodeList<Expression>(this);
/**
* The right square bracket.
*/
private Token rightBracket;
/**
* Initialize a newly created list literal.
*
* @param constKeyword the token representing the 'const' keyword
* @param typeArguments the type argument associated with this literal, or {@code null} if no type
* arguments were declared
* @param leftBracket the left square bracket
* @param elements the expressions used to compute the elements of the list
* @param rightBracket the right square bracket
*/
public ListLiteral(Token constKeyword, TypeArgumentList typeArguments, Token leftBracket,
List<Expression> elements, Token rightBracket) {
super(constKeyword, typeArguments);
this.leftBracket = leftBracket;
this.elements.addAll(elements);
this.rightBracket = rightBracket;
}
@Override
public <R> R accept(AstVisitor<R> visitor) {
return visitor.visitListLiteral(this);
}
@Override
public Token getBeginToken() {
Token token = getConstKeyword();
if (token != null) {
return token;
}
TypeArgumentList typeArguments = getTypeArguments();
if (typeArguments != null) {
return typeArguments.getBeginToken();
}
return leftBracket;
}
/**
* Return the expressions used to compute the elements of the list.
*
* @return the expressions used to compute the elements of the list
*/
public NodeList<Expression> getElements() {
return elements;
}
@Override
public Token getEndToken() {
return rightBracket;
}
/**
* Return the left square bracket.
*
* @return the left square bracket
*/
public Token getLeftBracket() {
return leftBracket;
}
/**
* Return the right square bracket.
*
* @return the right square bracket
*/
public Token getRightBracket() {
return rightBracket;
}
/**
* Set the left square bracket to the given token.
*
* @param bracket the left square bracket
*/
public void setLeftBracket(Token bracket) {
leftBracket = bracket;
}
/**
* Set the right square bracket to the given token.
*
* @param bracket the right square bracket
*/
public void setRightBracket(Token bracket) {
rightBracket = bracket;
}
@Override
public void visitChildren(AstVisitor<?> visitor) {
super.visitChildren(visitor);
elements.accept(visitor);
}
}