| Index: pkg/serialization/lib/src/format.dart
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| diff --git a/pkg/serialization/lib/src/format.dart b/pkg/serialization/lib/src/format.dart
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| index 6e40e0ad797ce3c129b79e8c6b1636f04e4edbf9..c1d122e064bfc999e1d268fa0b3a91cd7172750b 100644
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| --- a/pkg/serialization/lib/src/format.dart
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| +++ b/pkg/serialization/lib/src/format.dart
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| @@ -161,7 +161,7 @@ class SimpleJsonFormat extends Format {
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|      var result = {};
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|      result["rules"] = null;
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|      var ruleData =
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| -        new List(r.serialization.rules.length).mappedBy((x) => []).toList();
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| +        new List(r.serialization.rules.length).map((x) => []).toList();
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|      var top = recursivelyFixUp(data, r, ruleData);
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|      result["data"] = ruleData;
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|      result["roots"] = [top];
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| @@ -434,4 +434,4 @@ class SimpleFlatFormat extends Format {
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|      input.moveNext();
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|      return input.current;
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|    }
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| -}
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| +}
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| 
 |