示例#1
0
 public EnumSumScalarLambdaForgeEval(
     EnumSumScalarLambdaForge forge,
     ExprEvaluator innerExpression)
 {
     _forge = forge;
     _innerExpression = innerExpression;
 }
示例#2
0
        public static CodegenExpression Codegen(
            EnumSumScalarLambdaForge 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)));

            var scope = new ExprForgeCodegenSymbol(false, null);
            var methodNode = codegenMethodScope
                .MakeChildWithScope(
                    forge.sumMethodFactory.ValueType.GetBoxedType(),
                    typeof(EnumSumEventsForgeEval),
                    scope,
                    codegenClassScope)
                .AddParam(EnumForgeCodegenNames.PARAMS);

            var block = methodNode.Block;
            forge.sumMethodFactory.CodegenDeclare(block);
            block.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,
                    "value",
                    forge.InnerExpression.EvaluateCodegen(innerType, methodNode, scope, codegenClassScope));
            if (innerType.CanBeNull()) {
                forEach.IfRefNull("value").BlockContinue();
            }

            forge.sumMethodFactory.CodegenEnterNumberTypedNonNull(forEach, Ref("value"));

            forge.sumMethodFactory.CodegenReturn(block);
            return LocalMethod(methodNode, args.Eps, args.Enumcoll, args.IsNewData, args.ExprCtx);
        }