| library; | 
 | import self as self; | 
 | import "dart:core" as core; | 
 |  | 
 | static method staticTypeOf<T extends core::Object? = dynamic>(self::staticTypeOf::T% x) → dynamic | 
 |   return self::staticTypeOf::T%; | 
 | static method main() → dynamic { | 
 |   hoisted has-declared-initializer core::int v; | 
 |   { | 
 |     final synthesized core::Map<core::String, core::int> #0#0 = <core::String, core::int>{"key": 42}; | 
 |     synthesized core::int? #0#3; | 
 |     synthesized core::bool #0#3#isSet = false; | 
 |     if(!((!((#0#3#isSet ?{core::int?} #0#3{core::int?} : let final dynamic #t1 = #0#3#isSet = true in #0#3 = #0#0.{core::Map::[]}(#C1){(core::Object?) → core::int?}) == null) || null is core::int && #0#0.{core::Map::containsKey}(#C1){(core::Object?) → core::bool}) && (let final dynamic #t2 = v = (#0#3#isSet ?{core::int?} #0#3{core::int?} : let final dynamic #t3 = #0#3#isSet = true in #0#3 = #0#0.{core::Map::[]}(#C1){(core::Object?) → core::int?}) as{Unchecked} core::int in true))) | 
 |       throw{for-error-handling} new core::StateError::•("Pattern matching error"); | 
 |   } | 
 |   core::print(self::staticTypeOf<core::int>(v)); | 
 | } | 
 |  | 
 | constants  { | 
 |   #C1 = "key" | 
 | } |