public EnumAverageDecimalEventsForgeEval(
EnumAverageDecimalEventsForge forge,
ExprEvaluator innerExpression)
{
_forge = forge;
_innerExpression = innerExpression;
}
public static CodegenExpression Codegen(
EnumAverageDecimalEventsForge forge,
EnumForgeCodegenParams args,
CodegenMethodScope codegenMethodScope,
CodegenClassScope codegenClassScope)
{
var innerType = forge.InnerExpression.EvaluationType;
CodegenExpression math =
codegenClassScope.AddOrGetDefaultFieldSharable(new MathContextCodegenField(forge.optionalMathContext));
var scope = new ExprForgeCodegenSymbol(false, null);
var methodNode = codegenMethodScope.MakeChildWithScope(
typeof(decimal?),
typeof(EnumAverageDecimalEventsForgeEval),
scope,
codegenClassScope)
.AddParam(EnumForgeCodegenNames.PARAMS);
var block = methodNode.Block;
block.DeclareVar<AggregatorAvgDecimal>(
"agg",
NewInstance<AggregatorAvgDecimal>(math));
var forEach = block.ForEach(typeof(EventBean), "next", EnumForgeCodegenNames.REF_ENUMCOLL)
.AssignArrayElement(EnumForgeCodegenNames.REF_EPS, Constant(forge.StreamNumLambda), Ref("next"))
.DeclareVar(
innerType,
"num",
forge.InnerExpression.EvaluateCodegen(innerType, methodNode, scope, codegenClassScope));
if (innerType.CanBeNull()) {
forEach.IfRefNull("num").BlockContinue();
}
forEach.Expression(ExprDotMethod(Ref("agg"), "Enter", Ref("num")))
.BlockEnd();
block.MethodReturn(ExprDotName(Ref("agg"), "Value"));
return LocalMethod(methodNode, args.Eps, args.Enumcoll, args.IsNewData, args.ExprCtx);
}