public EnumAggregateEventsForgeEval(
EnumAggregateEventsForge forge,
ExprEvaluator initialization,
ExprEvaluator innerExpression)
{
_forge = forge;
_initialization = initialization;
_innerExpression = innerExpression;
}
public static CodegenExpression Codegen(
EnumAggregateEventsForge forge,
EnumForgeCodegenParams args,
CodegenMethodScope codegenMethodScope,
CodegenClassScope codegenClassScope)
{
var typeMember = 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.Initialization.EvaluationType,
typeof(EnumAggregateEventsForgeEval),
scope,
codegenClassScope)
.AddParam(EnumForgeCodegenNames.PARAMS);
var initType = forge.Initialization.EvaluationType;
var initTypeBoxed = initType.GetBoxedType();
var unboxRequired = initType != initTypeBoxed;
var innerType = forge.InnerExpression.EvaluationType;
var block = methodNode.Block;
block.DeclareVar(
initTypeBoxed,
"value",
forge.Initialization.EvaluateCodegen(initType, methodNode, scope, codegenClassScope))
.IfCondition(ExprDotMethod(EnumForgeCodegenNames.REF_ENUMCOLL, "IsEmpty"))
.BlockReturn(
unboxRequired
? (CodegenExpression) ExprDotName(Ref("value"), "Value")
: (CodegenExpression) Ref("value"));
block.DeclareVar<ObjectArrayEventBean>(
"resultEvent",
NewInstance<ObjectArrayEventBean>(NewArrayByLength(typeof(object), Constant(1)), typeMember))
.AssignArrayElement(EnumForgeCodegenNames.REF_EPS, Constant(forge.StreamNumLambda), Ref("resultEvent"))
.DeclareVar<object[]>("props", ExprDotName(Ref("resultEvent"), "Properties"));
block.ForEach(typeof(EventBean), "next", EnumForgeCodegenNames.REF_ENUMCOLL)
.AssignArrayElement("props", Constant(0), Ref("value"))
.AssignArrayElement(EnumForgeCodegenNames.REF_EPS, Constant(forge.StreamNumLambda + 1), Ref("next"))
.AssignRef(
"value",
forge.InnerExpression.EvaluateCodegen(
innerType, methodNode, scope, codegenClassScope))
.BlockEnd();
block.MethodReturn(
unboxRequired
? (CodegenExpression) ExprDotName(Ref("value"), "Value")
: (CodegenExpression) Ref("value"));
return LocalMethod(methodNode, args.Eps, args.Enumcoll, args.IsNewData, args.ExprCtx);
}
