1 /* 2 * Copyright 2016 Google Inc. All Rights Reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.turbine.parse; 18 19 import com.google.turbine.diag.SourceFile; 20 21 /** A Java lexer. */ 22 public interface Lexer { 23 /** Returns the next token in the input stream, or {@code EOF}. */ next()24 Token next(); 25 26 /** Returns the string value of the current literal or identifier token. */ stringValue()27 String stringValue(); 28 29 /** Returns the current position in the input. */ position()30 int position(); 31 32 /** Returns the source file for diagnostics. */ source()33 SourceFile source(); 34 35 /** Returns a saved javadoc comment. */ javadoc()36 String javadoc(); 37 } 38