public static CodegenExpression CodegenExpressionMayCoerce(
ExprForge forge,
Type targetType,
CodegenMethod exprMethod,
ExprForgeCodegenSymbol exprSymbol,
CodegenClassScope classScope)
{
CodegenExpression expr = forge.EvaluateCodegen(forge.EvaluationType, exprMethod, exprSymbol, classScope);
return ExprNodeUtilityCodegen.CodegenCoerce(expr, forge.EvaluationType, targetType, false);
}
public virtual CodegenMethod MakeCodegen(
CodegenMethodScope parent,
SAIFFInitializeSymbolWEventType symbols,
CodegenClassScope classScope)
{
var method = parent.MakeChild(
typeof(ExprFilterSpecLookupable),
typeof(ExprFilterSpecLookupableForge),
classScope);
CodegenExpression singleEventEvalExpr = ConstantNull();
if (_optionalEventEvalForge != null) {
var eval = new CodegenExpressionLambda(method.Block)
.WithParam<EventBean>("bean")
.WithParam<ExprEvaluatorContext>("ctx");
var anonymous = NewInstance<ProxyExprEventEvaluator>(eval);
eval.Block.BlockReturn(
_optionalEventEvalForge.EventBeanWithCtxGet(Ref("bean"), Ref("ctx"), method, classScope));
singleEventEvalExpr = anonymous;
}
CodegenExpression epsEvalExpr = ConstantNull();
if (_optionalExprForge != null) {
epsEvalExpr = ExprNodeUtilityCodegen.CodegenEvaluator(
_optionalExprForge, method, typeof(ExprFilterSpecLookupableForge), classScope);
}
CodegenExpression serdeExpr = _valueSerde == null ? ConstantNull() : _valueSerde.Codegen(method, classScope, null);
CodegenExpression returnTypeExpr = _returnType == null ? ConstantNull() : Typeof(_returnType);
method.Block
.DeclareVar<ExprEventEvaluator>("eval", singleEventEvalExpr)
.DeclareVar<ExprEvaluator>("expr", epsEvalExpr)
.DeclareVar<ExprFilterSpecLookupable>(
"lookupable",
NewInstance<ExprFilterSpecLookupable>(
Constant(_expression),
Ref("eval"),
Ref("expr"),
returnTypeExpr,
Constant(_isNonPropertyGetter),
serdeExpr))
.Expression(
ExprDotMethodChain(symbols.GetAddInitSvc(method))
.Get(EPStatementInitServicesConstants.FILTERSHAREDLOOKUPABLEREGISTERY)
.Add(
"RegisterLookupable",
symbols.GetAddEventType(method),
Ref("lookupable")))
.MethodReturn(Ref("lookupable"));
return method;
}
