Merge pull request #2996 from ericvergnaud/fix-js-perf-issue-cause-by…

…-incorrect-fix rollback partially incorrect fix for #2902
antlr · Dec 6, 2020 · 0ad7056 · 0ad7056
2 parents 1b947ee + 74b8bb7
commit 0ad7056
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/runtime/JavaScript/src/antlr4/PredictionContext.js b/runtime/JavaScript/src/antlr4/PredictionContext.js
@@ -562,7 +562,7 @@ function mergeArrays(a, b, rootIsWildcard, mergeCache) {
 	while (i < a.returnStates.length && j < b.returnStates.length) {
 		const a_parent = a.parents[i];
 		const b_parent = b.parents[j];
-		if (equalArrays(a.returnStates[i], b.returnStates[j])) {
+		if (a.returnStates[i] === b.returnStates[j]) {
 			// same payload (stack tops are equal), must yield merged singleton
 			const payload = a.returnStates[i];
 			// $+$ = $