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package com.puppycrawl.tools.checkstyle.checks.blocks; |
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import com.puppycrawl.tools.checkstyle.api.DetailAST; |
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import com.puppycrawl.tools.checkstyle.api.TokenTypes; |
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import com.puppycrawl.tools.checkstyle.api.Utils; |
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import com.puppycrawl.tools.checkstyle.checks.AbstractOptionCheck; |
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import com.puppycrawl.tools.checkstyle.checks.CheckUtils; |
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public class RightCurlyCheck extends AbstractOptionCheck<RightCurlyOption> |
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{ |
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65 | 4 | private boolean mShouldStartLine = true; |
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public RightCurlyCheck() |
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{ |
72 | 4 | super(RightCurlyOption.SAME, RightCurlyOption.class); |
73 | 4 | } |
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public void setShouldStartLine(boolean aFlag) |
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{ |
81 | 1 | mShouldStartLine = aFlag; |
82 | 1 | } |
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@Override |
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public int[] getDefaultTokens() |
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{ |
87 | 4 | return new int[] { |
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TokenTypes.LITERAL_TRY, |
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TokenTypes.LITERAL_CATCH, |
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TokenTypes.LITERAL_FINALLY, |
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TokenTypes.LITERAL_IF, |
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TokenTypes.LITERAL_ELSE, |
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}; |
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} |
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@Override |
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public void visitToken(DetailAST aAST) |
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{ |
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DetailAST rcurly; |
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DetailAST lcurly; |
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DetailAST nextToken; |
103 | 44 | boolean shouldCheckLastRcurly = false; |
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105 | 44 | switch (aAST.getType()) { |
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case TokenTypes.LITERAL_TRY: |
107 | 4 | lcurly = aAST.getFirstChild(); |
108 | 4 | nextToken = lcurly.getNextSibling(); |
109 | 4 | rcurly = lcurly.getLastChild(); |
110 | 4 | break; |
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case TokenTypes.LITERAL_CATCH: |
112 | 4 | nextToken = aAST.getNextSibling(); |
113 | 4 | lcurly = aAST.getLastChild(); |
114 | 4 | rcurly = lcurly.getLastChild(); |
115 | 4 | if (nextToken == null) { |
116 | 0 | shouldCheckLastRcurly = true; |
117 | 0 | nextToken = getNextToken(aAST); |
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} |
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break; |
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case TokenTypes.LITERAL_IF: |
121 | 20 | nextToken = aAST.findFirstToken(TokenTypes.LITERAL_ELSE); |
122 | 20 | if (nextToken != null) { |
123 | 12 | lcurly = nextToken.getPreviousSibling(); |
124 | 12 | rcurly = lcurly.getLastChild(); |
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} |
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else { |
127 | 8 | shouldCheckLastRcurly = true; |
128 | 8 | nextToken = getNextToken(aAST); |
129 | 8 | lcurly = aAST.getLastChild(); |
130 | 8 | rcurly = lcurly.getLastChild(); |
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} |
132 | 8 | break; |
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case TokenTypes.LITERAL_ELSE: |
134 | 12 | shouldCheckLastRcurly = true; |
135 | 12 | nextToken = getNextToken(aAST); |
136 | 12 | lcurly = aAST.getFirstChild(); |
137 | 12 | rcurly = lcurly.getLastChild(); |
138 | 12 | break; |
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case TokenTypes.LITERAL_FINALLY: |
140 | 4 | shouldCheckLastRcurly = true; |
141 | 4 | nextToken = getNextToken(aAST); |
142 | 4 | lcurly = aAST.getFirstChild(); |
143 | 4 | rcurly = lcurly.getLastChild(); |
144 | 4 | break; |
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default: |
146 | 0 | throw new RuntimeException("Unexpected token type (" |
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+ TokenTypes.getTokenName(aAST.getType()) + ")"); |
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} |
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150 | 44 | if ((rcurly == null) || (rcurly.getType() != TokenTypes.RCURLY)) { |
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152 | 12 | return; |
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} |
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155 | 32 | if (shouldCheckLastRcurly) { |
156 | 16 | if (rcurly.getLineNo() == nextToken.getLineNo()) { |
157 | 4 | log(rcurly, "line.alone", "}"); |
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} |
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} |
160 | 16 | else if ((getAbstractOption() == RightCurlyOption.SAME) |
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&& (rcurly.getLineNo() != nextToken.getLineNo())) |
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{ |
163 | 8 | log(rcurly, "line.same", "}"); |
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} |
165 | 8 | else if ((getAbstractOption() == RightCurlyOption.ALONE) |
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&& (rcurly.getLineNo() == nextToken.getLineNo())) |
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{ |
168 | 0 | log(rcurly, "line.alone", "}"); |
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} |
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171 | 32 | if (!mShouldStartLine) { |
172 | 8 | return; |
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} |
174 | 24 | final boolean startsLine = |
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Utils.whitespaceBefore(rcurly.getColumnNo(), |
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getLines()[rcurly.getLineNo() - 1]); |
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178 | 24 | if (!startsLine && (lcurly.getLineNo() != rcurly.getLineNo())) { |
179 | 3 | log(rcurly, "line.new", "}"); |
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} |
181 | 24 | } |
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private DetailAST getNextToken(DetailAST aAST) |
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{ |
190 | 24 | DetailAST next = null; |
191 | 24 | DetailAST parent = aAST; |
192 | 72 | while ((parent != null) && (next == null)) { |
193 | 48 | next = parent.getNextSibling(); |
194 | 48 | parent = parent.getParent(); |
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} |
196 | 24 | return CheckUtils.getFirstNode(next); |
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} |
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} |