public EnumTakeWhileIndexEventsForgeEval( EnumTakeWhileIndexEventsForge forge, ExprEvaluator innerExpression) { _forge = forge; _innerExpression = innerExpression; }
public static CodegenExpression Codegen( EnumTakeWhileIndexEventsForge forge, EnumForgeCodegenParams args, CodegenMethodScope codegenMethodScope, CodegenClassScope codegenClassScope) { var indexTypeMember = codegenClassScope.AddDefaultFieldUnshared( true, typeof(ObjectArrayEventType), Cast( typeof(ObjectArrayEventType), EventTypeUtility.ResolveTypeCodegen(forge.indexEventType, EPStatementInitServicesConstants.REF))); var scope = new ExprForgeCodegenSymbol(false, null); var methodNode = codegenMethodScope .MakeChildWithScope( typeof(FlexCollection), typeof(EnumTakeWhileIndexEventsForgeEval), scope, codegenClassScope) .AddParam(EnumForgeCodegenNames.PARAMS); var innerValue = forge.innerExpression.EvaluateCodegen( typeof(bool?), methodNode, scope, codegenClassScope); var block = methodNode.Block .IfCondition(ExprDotMethod(EnumForgeCodegenNames.REF_ENUMCOLL, "IsEmpty")) .BlockReturn(EnumForgeCodegenNames.REF_ENUMCOLL) .DeclareVar<ObjectArrayEventBean>( "indexEvent", NewInstance<ObjectArrayEventBean>(NewArrayByLength(typeof(object), Constant(1)), indexTypeMember)) .AssignArrayElement( EnumForgeCodegenNames.REF_EPS, Constant(forge.streamNumLambda + 1), Ref("indexEvent")) .DeclareVar<object[]>("props", ExprDotName(Ref("indexEvent"), "Properties")); var blockSingle = block .IfCondition(EqualsIdentity(ExprDotName(EnumForgeCodegenNames.REF_ENUMCOLL, "Count"), Constant(1))) .DeclareVar<EventBean>( "item", Cast( typeof(EventBean), ExprDotMethodChain(EnumForgeCodegenNames.REF_ENUMCOLL).Add("First"))) .AssignArrayElement("props", Constant(0), Constant(0)) .AssignArrayElement(EnumForgeCodegenNames.REF_EPS, Constant(forge.streamNumLambda), Ref("item")); CodegenLegoBooleanExpression.CodegenReturnValueIfNotNullAndNotPass( blockSingle, forge.innerExpression.EvaluationType, innerValue, FlexEmpty()); blockSingle.BlockReturn(FlexEvent(Ref("item"))); block.DeclareVar<ArrayDeque<EventBean>>("result", NewInstance(typeof(ArrayDeque<EventBean>))) .DeclareVar<int>("count", Constant(-1)); var forEach = block.ForEach(typeof(EventBean), "next", EnumForgeCodegenNames.REF_ENUMCOLL) .Increment("count") .AssignArrayElement("props", Constant(0), Ref("count")) .AssignArrayElement(EnumForgeCodegenNames.REF_EPS, Constant(forge.streamNumLambda), Ref("next")); CodegenLegoBooleanExpression.CodegenBreakIfNotNullAndNotPass( forEach, forge.innerExpression.EvaluationType, innerValue); forEach.Expression(ExprDotMethod(Ref("result"), "Add", Ref("next"))); block.MethodReturn(FlexWrap(Ref("result"))); return LocalMethod(methodNode, args.Eps, args.Enumcoll, args.IsNewData, args.ExprCtx); }