public EnumMostLeastFrequentScalarLamdaForgeEval( EnumMostLeastFrequentScalarLamdaForge forge, ExprEvaluator innerExpression) { _forge = forge; _innerExpression = innerExpression; }
public static CodegenExpression Codegen( EnumMostLeastFrequentScalarLamdaForge forge, EnumForgeCodegenParams args, CodegenMethodScope codegenMethodScope, CodegenClassScope codegenClassScope) { var resultTypeMember = codegenClassScope.AddDefaultFieldUnshared( true, typeof(ObjectArrayEventType), Cast( typeof(ObjectArrayEventType), EventTypeUtility.ResolveTypeCodegen(forge.resultEventType, EPStatementInitServicesConstants.REF))); var returnType = Boxing.GetBoxedType(forge.InnerExpression.EvaluationType); var scope = new ExprForgeCodegenSymbol(false, null); var paramTypes = EnumForgeCodegenNames.PARAMS; var methodNode = codegenMethodScope .MakeChildWithScope( returnType, typeof(EnumMostLeastFrequentScalarLamdaForgeEval), scope, codegenClassScope) .AddParam(paramTypes); var block = methodNode.Block .IfCondition(ExprDotMethod(EnumForgeCodegenNames.REF_ENUMCOLL, "IsEmpty")) .BlockReturn(ConstantNull()) .DeclareVar<IDictionary<object, int>>("items", NewInstance(typeof(HashMap<object, int>))) .DeclareVar<ObjectArrayEventBean>( "resultEvent", NewInstance<ObjectArrayEventBean>(NewArrayByLength(typeof(object), Constant(1)), resultTypeMember)) .AssignArrayElement(EnumForgeCodegenNames.REF_EPS, Constant(forge.StreamNumLambda), Ref("resultEvent")) .DeclareVar<object[]>("props", ExprDotName(Ref("resultEvent"), "Properties")); block.ForEach(typeof(object), "next", EnumForgeCodegenNames.REF_ENUMCOLL) .AssignArrayElement("props", Constant(0), Ref("next")) .DeclareVar<object>( "item", forge.InnerExpression.EvaluateCodegen(typeof(object), methodNode, scope, codegenClassScope)) .DeclareVar<int?>("existing", ExprDotMethod(Ref("items"), "GetBoxed", Ref("item"))) .IfCondition(EqualsNull(Ref("existing"))) .AssignRef("existing", Constant(1)) .IfElse() .Increment("existing") .BlockEnd() .ExprDotMethod(Ref("items"), "Put", Ref("item"), Unbox(Ref("existing"))); block.MethodReturn( Cast( returnType, StaticMethod( typeof(EnumMostLeastFrequentEventForgeEval), "GetEnumMostLeastFrequentResult", Ref("items"), Constant(forge.isMostFrequent)))); return LocalMethod(methodNode, args.Eps, args.Enumcoll, args.IsNewData, args.ExprCtx); }