| 1 | /* |
|---|---|
| 2 | * Copyright (C) 2007-2010 Júlio Vilmar Gesser. |
| 3 | * Copyright (C) 2011, 2013-2020 The JavaParser Team. |
| 4 | * |
| 5 | * This file is part of JavaParser. |
| 6 | * |
| 7 | * JavaParser can be used either under the terms of |
| 8 | * a) the GNU Lesser General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * b) the terms of the Apache License |
| 12 | * |
| 13 | * You should have received a copy of both licenses in LICENCE.LGPL and |
| 14 | * LICENCE.APACHE. Please refer to those files for details. |
| 15 | * |
| 16 | * JavaParser is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU Lesser General Public License for more details. |
| 20 | */ |
| 21 | |
| 22 | package com.github.javaparser.printer.concretesyntaxmodel; |
| 23 | |
| 24 | import com.github.javaparser.GeneratedJavaParserConstants; |
| 25 | import com.github.javaparser.TokenTypes; |
| 26 | import com.github.javaparser.ast.Node; |
| 27 | import com.github.javaparser.printer.SourcePrinter; |
| 28 | import com.github.javaparser.utils.LineSeparator; |
| 29 | |
| 30 | import static com.github.javaparser.TokenTypes.*; |
| 31 | |
| 32 | public class CsmToken implements CsmElement { |
| 33 | private final int tokenType; |
| 34 | private String content; |
| 35 | private TokenContentCalculator tokenContentCalculator; |
| 36 | |
| 37 | public interface TokenContentCalculator { |
| 38 | String calculate(Node node); |
| 39 | } |
| 40 | |
| 41 | public int getTokenType() { |
| 42 | return tokenType; |
| 43 | } |
| 44 | |
| 45 | public String getContent(Node node) { |
| 46 | if (tokenContentCalculator != null) { |
| 47 | return tokenContentCalculator.calculate(node); |
| 48 | } |
| 49 | return content; |
| 50 | } |
| 51 | |
| 52 | public CsmToken(int tokenType) { |
| 53 | this.tokenType = tokenType; |
| 54 | this.content = GeneratedJavaParserConstants.tokenImage[tokenType]; |
| 55 | if (content.startsWith("\"")) { |
| 56 | content = content.substring(1, content.length() - 1); |
| 57 | } |
| 58 | |
| 59 | // Replace "raw" values with escaped textual counterparts (e.g. newlines {@code \r\n}) |
| 60 | // and "placeholder" values ({@code <SPACE>}) with their textual counterparts |
| 61 | if (isEndOfLineToken(tokenType)) { |
| 62 | // Use the unescaped version |
| 63 | content = LineSeparator.lookupEscaped(this.content).get().asRawString(); |
| 64 | } else if (isWhitespaceButNotEndOfLine(tokenType)) { |
| 65 | content = " "; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | public CsmToken(int tokenType, String content) { |
| 70 | this.tokenType = tokenType; |
| 71 | this.content = content; |
| 72 | } |
| 73 | |
| 74 | public CsmToken(int tokenType, TokenContentCalculator tokenContentCalculator) { |
| 75 | this.tokenType = tokenType; |
| 76 | this.tokenContentCalculator = tokenContentCalculator; |
| 77 | } |
| 78 | |
| 79 | @Override |
| 80 | public void prettyPrint(Node node, SourcePrinter printer) { |
| 81 | if (isEndOfLineToken(tokenType)) { |
| 82 | printer.println(); |
| 83 | } else { |
| 84 | printer.print(getContent(node)); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | @Override |
| 89 | public String toString() { |
| 90 | return "token(" + content + ")"; |
| 91 | } |
| 92 | |
| 93 | @Override |
| 94 | public boolean equals(Object o) { |
| 95 | if (this == o) return true; |
| 96 | if (o == null || getClass() != o.getClass()) return false; |
| 97 | |
| 98 | CsmToken csmToken = (CsmToken) o; |
| 99 | |
| 100 | if (tokenType != csmToken.tokenType) return false; |
| 101 | if (content != null ? !content.equals(csmToken.content) : csmToken.content != null) return false; |
| 102 | return tokenContentCalculator != null ? tokenContentCalculator.equals(csmToken.tokenContentCalculator) : csmToken.tokenContentCalculator == null; |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public int hashCode() { |
| 107 | int result = tokenType; |
| 108 | result = 31 * result + (content != null ? content.hashCode() : 0); |
| 109 | result = 31 * result + (tokenContentCalculator != null ? tokenContentCalculator.hashCode() : 0); |
| 110 | return result; |
| 111 | } |
| 112 | |
| 113 | public boolean isWhiteSpace() { |
| 114 | return TokenTypes.isWhitespace(tokenType); |
| 115 | } |
| 116 | |
| 117 | public boolean isNewLine() { |
| 118 | return TokenTypes.isEndOfLineToken(tokenType); |
| 119 | } |
| 120 | } |
| 121 |
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