public override CodegenExpression EvaluateCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
var eventToPublic = TableDeployTimeResolver.MakeTableEventToPublicField(table, classScope, GetType());
var method = parent.MakeChild(subselect.EvaluationType, GetType(), classScope);
method.Block
.IfCondition(
Relational(
ExprDotName(symbols.GetAddMatchingEvents(method), "Count"),
CodegenExpressionRelational.CodegenRelational.GT,
Constant(1)))
.BlockReturn(ConstantNull())
.DeclareVar<EventBean>(
"@event",
StaticMethod(
typeof(EventBeanUtility),
"GetNonemptyFirstEvent",
symbols.GetAddMatchingEvents(method)))
.MethodReturn(
ExprDotMethod(
eventToPublic,
"ConvertToUnd",
Ref("@event"),
symbols.GetAddEPS(method),
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
return LocalMethod(method);
}
public override CodegenExpression EvaluateCodegen(
CodegenMethodScope parent,
ExprSubselectEvalMatchSymbol symbols,
CodegenClassScope classScope)
{
CodegenExpressionInstanceField eventToPublic =
TableDeployTimeResolver.MakeTableEventToPublicField(table, classScope, this.GetType());
CodegenMethod method = parent.MakeChild(subselect.EvaluationType, this.GetType(), classScope);
method.Block.ApplyTri(DECLARE_EVENTS_SHIFTED, method, symbols);
method.Block.DeclareVar<EventBean>("filtered", ConstantNull());
CodegenBlock @foreach = method.Block.ForEach(
typeof(EventBean),
"@event",
symbols.GetAddMatchingEvents(method));
{
@foreach.AssignArrayElement(REF_EVENTS_SHIFTED, Constant(0), Ref("@event"));
CodegenMethod filter = CodegenLegoMethodExpression.CodegenExpression(subselect.FilterExpr, method, classScope, true);
CodegenLegoBooleanExpression.CodegenContinueIfNotNullAndNotPass(
@foreach,
typeof(bool?),
LocalMethod(
filter,
REF_EVENTS_SHIFTED,
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
@foreach.IfCondition(NotEqualsNull(Ref("filtered")))
.BlockReturn(ConstantNull())
.AssignRef("filtered", Ref("@event"));
}
method.Block.IfRefNullReturnNull("filtered")
.MethodReturn(
ExprDotMethod(
eventToPublic,
"ConvertToUnd",
Ref("filtered"),
symbols.GetAddEPS(method),
symbols.GetAddIsNewData(method),
symbols.GetAddExprEvalCtx(method)));
return LocalMethod(method);
}