library; import self as self; import "dart:core" as core; static method test(dynamic x) → dynamic { #L1: { final synthesized dynamic #0#0 = x; { if(#0#0 is core::Map && #0#0{core::Map}.{core::Map::containsKey}(#C1){(core::Object?) → core::bool} && #C2 =={core::num::==}{(core::Object) → core::bool} #0#0{core::Map}.{core::Map::[]}(#C1){(core::Object?) → dynamic} && #0#0{core::Map}.{core::Map::containsKey}(#C3){(core::Object?) → core::bool} && #C4 =={core::num::==}{(core::Object) → core::bool} #0#0{core::Map}.{core::Map::[]}(#C3){(core::Object?) → dynamic}) { { break #L1; } } } } } constants { #C1 = "a" #C2 = 1 #C3 = "b" #C4 = 2 }