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mps-coderules
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Minor optimization: precompute hash value

This commit is contained in:
Fedor Isakov 2021-04-08 14:53:21 +02:00
parent 8a00024658
commit db7fbfc748
1 changed files with 7 additions and 6 deletions
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13
reactor/Core/src/jetbrains/mps/logic/reactor/program/Rule.java
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@ -70,8 +70,6 @@ public abstract class Rule {
public String name() { return name; }
public Object uniqueTag() { return utag; }
/**
* Rule is "stable" if it has no unique part
* and its name coincides with unique tag.
@ -90,24 +88,27 @@ public abstract class Rule {
this.group = groupPrefix;
this.name = commonPart;
this.utag = utagSb.toString();
this.hash = utag.hashCode();
}
public Tag(String commonPart, Object uniquePart) { this(commonPart, commonPart, uniquePart); }
@Deprecated
public Tag(String tag) { this(tag, tag, null); }
@Override
public int hashCode() { return utag.hashCode(); }
public int hashCode() { return hash; }
@Override
public boolean equals(Object obj) {
// NB: allow equality to String
if (obj == null) return false;
if (this == obj) return true;
// FIXME WTF? NB: allow equality to String
return this.toString().equals(obj.toString());
}
@Override
public String toString() { return utag; }
private final int hash;
private final String group;
private final String name;
private final String utag;