org.mozilla.javascript.ast.StringLiteral Maven / Gradle / Ivy
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.javascript.ast;
import org.mozilla.javascript.Token;
import org.mozilla.javascript.ScriptRuntime;
/**
* AST node for a single- or double-quoted string literal.
* Node type is {@link Token#STRING}.
*/
public class StringLiteral extends AstNode {
private String value;
private char quoteChar;
{
type = Token.STRING;
}
public StringLiteral() {
}
public StringLiteral(int pos) {
super(pos);
}
/**
* Creates a string literal node at the specified position.
* @param len the length including the enclosing quotes
*/
public StringLiteral(int pos, int len) {
super(pos, len);
}
/**
* Returns the node's value: the parsed string without the enclosing quotes
* @return the node's value, a {@link String} of unescaped characters
* that includes the delimiter quotes.
*/
public String getValue() {
return value;
}
/**
* Returns the string value, optionally including the enclosing quotes.
*/
public String getValue(boolean includeQuotes) {
if (!includeQuotes)
return value;
return quoteChar + value + quoteChar;
}
/**
* Sets the node's value. Do not include the enclosing quotes.
* @param value the node's value
* @throws IllegalArgumentException} if value is {@code null}
*/
public void setValue(String value) {
assertNotNull(value);
this.value = value;
}
/**
* Returns the character used as the delimiter for this string.
*/
public char getQuoteCharacter() {
return quoteChar;
}
public void setQuoteCharacter(char c) {
quoteChar = c;
}
@Override
public String toSource(int depth) {
return new StringBuilder(makeIndent(depth))
.append(quoteChar)
.append(ScriptRuntime.escapeString(value, quoteChar))
.append(quoteChar)
.toString();
}
/**
* Visits this node. There are no children to visit.
*/
@Override
public void visit(NodeVisitor v) {
v.visit(this);
}
}