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diff -Naur antlr-3.3.orig/tool/src/main/java/org/antlr/tool/CompositeGrammar.java antlr-3.3/tool/src/main/java/org/antlr/tool/CompositeGrammar.java
--- antlr-3.3.orig/tool/src/main/java/org/antlr/tool/CompositeGrammar.java 2010-11-30 01:54:04.000000000 +0000
+++ antlr-3.3/tool/src/main/java/org/antlr/tool/CompositeGrammar.java 2015-10-03 14:28:50.063497181 +0100
@@ -219,7 +219,9 @@
public List<Grammar> getIndirectDelegates(Grammar g) {
List<Grammar> direct = getDirectDelegates(g);
List<Grammar> delegates = getDelegates(g);
- delegates.removeAll(direct);
+ if (direct != null) {
+ delegates.removeAll(direct);
+ }
return delegates;
}
@@ -389,7 +391,7 @@
Set<String> localRuleDefs = new HashSet<String>();
Set<String> overrides = new HashSet<String>();
// compute set of non-overridden rules for this delegate
- for (Rule r : p.grammar.getRules()) {
+ for (Rule r : (Collection<Rule>) p.grammar.getRules()) {
if ( !ruleDefs.contains(r.name) ) {
localRuleDefs.add(r.name);
}
@@ -409,7 +411,7 @@
// pass larger set of defined rules to delegates
if ( p.children!=null ) {
- for (CompositeGrammarTree delegate : p.children) {
+ for (CompositeGrammarTree delegate : (List<CompositeGrammarTree>) p.children) {
_minimizeRuleSet(ruleDefs, delegate);
}
}
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