1 package com.github.javaparser; 2 3 import com.github.javaparser.ast.comments.BlockComment; 4 import com.github.javaparser.ast.comments.Comment; 5 import com.github.javaparser.ast.comments.JavadocComment; 6 import com.github.javaparser.ast.comments.LineComment; 7 8 import static com.github.javaparser.GeneratedJavaParserConstants.*; 9 import static com.github.javaparser.Position.pos; 10 11 /** 12 * Base class for {@link com.github.javaparser.GeneratedJavaParserTokenManager} 13 */ 14 abstract class GeneratedJavaParserTokenManagerBase { 15 /** 16 * Create a TokenRange that spans exactly one token 17 */ 18 private static TokenRange tokenRange(Token token) { 19 JavaToken javaToken = token.javaToken; 20 return new TokenRange(javaToken, javaToken); 21 } 22 23 /** 24 * Since comments are completely captured in a single token, including their delimiters, deconstruct them here so we 25 * can turn them into nodes later on. 26 */ 27 static Comment createCommentFromToken(Token token) { 28 String commentText = token.image; 29 if (token.kind == JAVADOC_COMMENT) { 30 return new JavadocComment(tokenRange(token), commentText.substring(3, commentText.length() - 2)); 31 } else if (token.kind == MULTI_LINE_COMMENT) { 32 return new BlockComment(tokenRange(token), commentText.substring(2, commentText.length() - 2)); 33 } else if (token.kind == SINGLE_LINE_COMMENT) { 34 // line comments have their end of line character(s) included, and we don't want that. 35 Range range = new Range(pos(token.beginLine, token.beginColumn), pos(token.endLine, token.endColumn)); 36 while (commentText.endsWith("\r") || commentText.endsWith("\n")) { 37 commentText = commentText.substring(0, commentText.length() - 1); 38 } 39 range = range.withEnd(pos(range.begin.line, range.begin.column + commentText.length())); 40 LineComment comment = new LineComment(tokenRange(token), commentText.substring(2)); 41 comment.setRange(range); 42 return comment; 43 } 44 throw new AssertionError("Unexpectedly got passed a non-comment token."); 45 } 46 } 47
