public static void GetEnumerableEventsCodegen(
AggregationAccessorWindowWEvalForge forge,
AggregationStateLinearForge stateForge,
AggregationAccessorForgeGetCodegenContext context)
{
context.Method.Block.IfCondition(EqualsIdentity(stateForge.AggregatorLinear.SizeCodegen(), Constant(0)))
.BlockReturn(ConstantNull())
.MethodReturn(
stateForge.AggregatorLinear.CollectionReadOnlyCodegen(
context.Method,
context.ClassScope,
context.NamedMethods));
}
public static void GetEnumerableScalarCodegen(
AggregationAccessorWindowWEvalForge forge,
AggregationStateLinearForge stateForge,
AggregationAccessorForgeGetCodegenContext context)
{
context.Method.Block
.DeclareVar<int>("size", stateForge.AggregatorLinear.SizeCodegen())
.IfCondition(EqualsIdentity(Ref("size"), Constant(0)))
.BlockReturn(ConstantNull())
.DeclareVar<IList<object>>("values", NewInstance<List<object>>(Ref("size")))
.DeclareVar<IEnumerator<EventBean>>(
"enumerator",
stateForge.AggregatorLinear.EnumeratorCodegen(
context.ClassScope,
context.Method,
context.NamedMethods))
.DebugStack()
.DeclareVar<EventBean[]>(
"eventsPerStreamBuf",
NewArrayByLength(typeof(EventBean), Constant(forge.StreamNum + 1)))
.WhileLoop(ExprDotMethod(Ref("enumerator"), "MoveNext"))
.DeclareVar<EventBean>("bean", Cast(typeof(EventBean), ExprDotName(Ref("enumerator"), "Current")))
.AssignArrayElement("eventsPerStreamBuf", Constant(forge.StreamNum), Ref("bean"))
.DeclareVar(
forge.ChildNode.EvaluationType.GetBoxedType(),
"value",
LocalMethod(
CodegenLegoMethodExpression.CodegenExpression(
forge.ChildNode,
context.Method,
context.ClassScope,
true),
Ref("eventsPerStreamBuf"),
ConstantTrue(),
ConstantNull()))
.ExprDotMethod(Ref("values"), "Add", Ref("value"))
.BlockEnd()
.MethodReturn(Ref("values"));
}
public static void GetValueCodegen(
AggregationAccessorWindowWEvalForge forge,
AggregationStateLinearForge accessStateFactory,
AggregationAccessorForgeGetCodegenContext context)
{
var size = accessStateFactory.AggregatorLinear.SizeCodegen();
var enumerator = accessStateFactory.AggregatorLinear.EnumeratorCodegen(
context.ClassScope,
context.Method,
context.NamedMethods);
var childExpr = CodegenLegoMethodExpression.CodegenExpression(
forge.ChildNode,
context.Method,
context.ClassScope,
false);
var childExprType = forge.ChildNode.EvaluationType;
CodegenExpression invokeChild = LocalMethod(childExpr, Ref("eventsPerStreamBuf"), Constant(true), ConstantNull());
if (forge.ComponentType != childExprType) {
invokeChild = Unbox(invokeChild);
}
context.Method.Block
.IfCondition(EqualsIdentity(size, Constant(0)))
.BlockReturn(ConstantNull())
.DeclareVar(TypeHelper.GetArrayType(forge.ComponentType), "array", NewArrayByLength(forge.ComponentType, size))
.DeclareVar<int>("count", Constant(0))
.DeclareVar<IEnumerator<EventBean>>("enumerator", enumerator)
.DebugStack()
.DeclareVar<EventBean[]>("eventsPerStreamBuf", NewArrayByLength(typeof(EventBean), Constant(forge.StreamNum + 1)))
.WhileLoop(ExprDotMethod(Ref("enumerator"), "MoveNext"))
.DeclareVar<EventBean>("bean", Cast(typeof(EventBean), ExprDotName(Ref("enumerator"), "Current")))
.AssignArrayElement("eventsPerStreamBuf", Constant(forge.StreamNum), Ref("bean"))
.AssignArrayElement(Ref("array"), Ref("count"), invokeChild)
.IncrementRef("count")
.BlockEnd()
.MethodReturn(Ref("array"));
}
