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package cuchaz.enigma.gui;
import cuchaz.enigma.analysis.Token;
import java.util.HashMap;
import java.util.Map;
public class SourceRemapper {
private final String source;
private final Iterable<Token> tokens;
public SourceRemapper(String source, Iterable<Token> tokens) {
this.source = source;
this.tokens = tokens;
}
public Result remap(Remapper remapper) {
StringBuffer remappedSource = new StringBuffer(source);
Map<Token, Token> remappedTokens = new HashMap<>();
int accumulatedOffset = 0;
for (Token token : tokens) {
Token movedToken = token.move(accumulatedOffset);
String remappedName = remapper.remap(token, movedToken);
if (remappedName != null) {
accumulatedOffset += movedToken.getRenameOffset(remappedName);
movedToken.rename(remappedSource, remappedName);
}
if (!token.equals(movedToken)) {
remappedTokens.put(token, movedToken);
}
}
return new Result(remappedSource.toString(), remappedTokens);
}
public static class Result {
private final String remappedSource;
private final Map<Token, Token> remappedTokens;
Result(String remappedSource, Map<Token, Token> remappedTokens) {
this.remappedSource = remappedSource;
this.remappedTokens = remappedTokens;
}
public String getSource() {
return remappedSource;
}
public Token getRemappedToken(Token token) {
return remappedTokens.getOrDefault(token, token);
}
public boolean isEmpty() {
return remappedTokens.isEmpty();
}
}
public interface Remapper {
String remap(Token token, Token movedToken);
}
}
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