public void ReturnObject(ParameterExpression variable)
{
LabelTarget returnLabel = ExpressionFactory.Label(variable.Type);
BodyExpressions.Add(ExpressionFactory.Return(returnLabel, variable));
BodyExpressions.Add(ExpressionFactory.Label(returnLabel, variable));
}
public ParameterExpression CreateObject <TEntity>(string name, Type[] constructorTypes, Expression[] constructorValues)
{
ConstructorInfo constructor = typeof(TEntity).GetConstructor(constructorTypes);
ParameterExpression variableExpression = AddVariable <TEntity>(name);
Expression createObjectExpression = ExpressionFactory.Assign(
variableExpression,
ExpressionFactory.New(
constructor,
constructorValues));
BodyExpressions.Add(createObjectExpression);
return(variableExpression);
}
public void For(Expression collectionExpression, Func <ParameterExpression, Expression> contentExpressionDelegate)
{
ParameterExpression iteratorVariable = ExpressionFactory.Variable <int>(nameof(iteratorVariable));
LabelTarget breakLabel = ExpressionFactory.Label(nameof(breakLabel));
Expression forBlock = ExpressionFactory.Block(
new[] { iteratorVariable },
ExpressionFactory.Loop(
ExpressionFactory.IfThenElse(
ExpressionFactory.LessThan(
iteratorVariable,
ExpressionFactory.Call(
collectionExpression,
CollectionCountProperty.GetMethod)),
ExpressionFactory.Block(
contentExpressionDelegate(iteratorVariable),
ExpressionFactory.PostIncrementAssign(iteratorVariable)),
ExpressionFactory.Break(breakLabel)),
breakLabel)
);
BodyExpressions.Add(forBlock);
}
public void SetProperty(ParameterExpression variable, PropertyInfo property, Expression value) => BodyExpressions.Add(ExpressionFactory.Call(variable, property.SetMethod, value));