public EnumMinMaxEventsForgeEval(
EnumMinMaxEventsForge forge,
ExprEvaluator innerExpression)
{
_forge = forge;
_innerExpression = innerExpression;
}
public static CodegenExpression Codegen(
EnumMinMaxEventsForge forge,
EnumForgeCodegenParams args,
CodegenMethodScope codegenMethodScope,
CodegenClassScope codegenClassScope)
{
var innerType = forge.InnerExpression.EvaluationType;
var innerTypeBoxed = Boxing.GetBoxedType(innerType);
//var paramTypes = (innerType == typeof(EventBean))
// ? EnumForgeCodegenNames.PARAMS_EVENTBEAN
// : EnumForgeCodegenNames.PARAMS_OBJECT;
var paramTypes = EnumForgeCodegenNames.PARAMS;
var scope = new ExprForgeCodegenSymbol(false, null);
var methodNode = codegenMethodScope
.MakeChildWithScope(innerTypeBoxed, typeof(EnumMinMaxEventsForgeEval), scope, codegenClassScope)
.AddParam(paramTypes);
var block = methodNode.Block
.DeclareVar(innerTypeBoxed, "minKey", ConstantNull());
var forEach = block.ForEach(typeof(EventBean), "next", EnumForgeCodegenNames.REF_ENUMCOLL)
.AssignArrayElement(EnumForgeCodegenNames.REF_EPS, Constant(forge.StreamNumLambda), Ref("next"))
.DeclareVar(
innerTypeBoxed,
"value",
forge.InnerExpression.EvaluateCodegen(innerTypeBoxed, methodNode, scope, codegenClassScope));
if (innerType.CanBeNull()) {
forEach.IfRefNull("value").BlockContinue();
}
forEach.IfCondition(EqualsNull(Ref("minKey")))
.AssignRef("minKey", Ref("value"))
.IfElse()
.IfCondition(
Relational(
ExprDotMethod(Unbox(Ref("minKey"), innerTypeBoxed), "CompareTo", Ref("value")),
forge.max ? LT : GT,
Constant(0)))
.AssignRef("minKey", Ref("value"));
block.MethodReturn(Ref("minKey"));
return LocalMethod(methodNode, args.Eps, args.Enumcoll, args.IsNewData, args.ExprCtx);
}
