public EnumAverageDecimalScalarLambdaForgeEval(
EnumAverageDecimalScalarLambdaForge forge,
ExprEvaluator innerExpression)
{
_forge = forge;
_innerExpression = innerExpression;
}
public static CodegenExpression Codegen(
EnumAverageDecimalScalarLambdaForge forge,
EnumForgeCodegenParams args,
CodegenMethodScope codegenMethodScope,
CodegenClassScope codegenClassScope)
{
var innerType = forge.InnerExpression.EvaluationType;
var resultTypeMember = codegenClassScope.AddDefaultFieldUnshared(
true,
typeof(ObjectArrayEventType),
Cast(
typeof(ObjectArrayEventType),
EventTypeUtility.ResolveTypeCodegen(forge.resultEventType, EPStatementInitServicesConstants.REF)));
CodegenExpression math =
codegenClassScope.AddOrGetDefaultFieldSharable(new MathContextCodegenField(forge.optionalMathContext));
var scope = new ExprForgeCodegenSymbol(false, null);
var methodNode = codegenMethodScope.MakeChildWithScope(
typeof(decimal?),
typeof(EnumAverageDecimalScalarLambdaForgeEval),
scope,
codegenClassScope)
.AddParam(EnumForgeCodegenNames.PARAMS);
var block = methodNode.Block;
block.DeclareVar<EnumAverageDecimalEventsForgeEval.AggregatorAvgDecimal>(
"agg",
NewInstance(typeof(EnumAverageDecimalEventsForgeEval.AggregatorAvgDecimal), math))
.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"));
var forEach = block.ForEach(typeof(object), "next", EnumForgeCodegenNames.REF_ENUMCOLL)
.AssignArrayElement("props", Constant(0), Ref("next"))
.DeclareVar(
innerType,
"num",
forge.InnerExpression.EvaluateCodegen(typeof(object), methodNode, scope, codegenClassScope));
if (innerType.CanBeNull()) {
forEach.IfRefNull("num").BlockContinue();
}
forEach.Expression(ExprDotMethod(Ref("agg"), "Enter", Ref("num")));
block.MethodReturn(ExprDotName(Ref("agg"), "Value"));
return LocalMethod(methodNode, args.Eps, args.Enumcoll, args.IsNewData, args.ExprCtx);
}
