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This commit is contained in:
Terence Parr 2012-07-26 18:17:05 -07:00
parent 0e24a66f07
commit 6322ff3abd
1 changed files with 6 additions and 0 deletions
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6
runtime/Java/src/org/antlr/v4/runtime/atn/ATNConfigSet.java
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@ -45,6 +45,12 @@ import java.util.Set;
*/ */
public class ATNConfigSet implements Set<ATNConfig> { public class ATNConfigSet implements Set<ATNConfig> {
// TODO: convert to long like Sam? use list and map from config to ctx? // TODO: convert to long like Sam? use list and map from config to ctx?
/*
The reason that we need this is because we don't want the hash map to use
the standard hash code and equals. We need all configurations with the same
(s,i,_,semctx) to be equal. Unfortunately, this key effectively doubles
the number of objects associated with ATNConfigs.
*/
public static class Key { public static class Key {
ATNState state; ATNState state;
int alt; int alt;