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fix: nullptr in PatternMatcher
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1 changed files with 1 additions and 2 deletions
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@ -83,11 +83,10 @@ public class PatternMatcher {
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if(predicates.size() == 0) return new InsnSequence(cur); //match whatever
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first = cur;
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last = cur;
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for(int match = 0; match < predicates.size(); last = reverse ? last.getPrevious() : last.getNext()) {
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for(int match = 0; last != null && match < predicates.size(); last = reverse ? last.getPrevious() : last.getNext()) {
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if(ignoreLabels && cur.getType() == AbstractInsnNode.LABEL) continue;
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if(ignoreFrames && cur.getType() == AbstractInsnNode.FRAME) continue;
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if(ignoreLineNumbers && cur.getType() == AbstractInsnNode.LINE) continue;
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if(last == null) break;
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if(!predicates.get(match).test(last)) break;
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if(match == predicates.size() - 1) {
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if(reverse) return new InsnSequence(last, first); //we are matching backwards
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