| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed 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 com.google.gwt.codegen.server; |
| |
| /** |
| * Helper class to produce string expressions consisting of literals and |
| * computed values. |
| */ |
| class PlainStringGenerator extends StringGenerator { |
| |
| private boolean firstExpression = true; |
| |
| /** |
| * Initialize the StringGenerator with an output buffer. |
| * |
| * @param buf output buffer |
| */ |
| PlainStringGenerator(StringBuilder buf) { |
| super(buf); |
| } |
| |
| @Override |
| protected void afterExpression(Type type) { |
| firstExpression = false; |
| } |
| |
| @Override |
| protected void beforeExpression(Type type) { |
| if (firstExpression) { |
| if (type == Type.PRIMITIVE) { |
| buf.append("\"\" + "); |
| } |
| } else { |
| buf.append(" + "); |
| } |
| } |
| |
| @Override |
| protected void finishOutput() { |
| if (firstExpression) { |
| buf.append("\"\""); |
| } |
| } |
| |
| @Override |
| protected void forceStringPrefix() { |
| if (firstExpression) { |
| buf.append("\"\" + "); |
| } |
| } |
| |
| @Override |
| protected void forceStringSuffix() { |
| } |
| } |