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private static Func <int[], int[]> GenerateCopyExpression()
{
var ctor = typeof(int[]).GetConstructor(new[] { typeof(int) });
var get = typeof(int[]).GetMethod("Get", new[] { typeof(int) });
var set = typeof(int[]).GetMethod("Set", new[] { typeof(int), typeof(int) });
var p1 = Exp.Parameter(typeof(int[]));
var v1 = Exp.Variable(typeof(int[]));
var v2 = Exp.Variable(typeof(int));
var @break = Exp.Label();
var block = Exp.Block(
new[] { v1, v2 },
Exp.Assign(v1, Exp.New(ctor, Exp.Property(p1, "Length"))),
Exp.Assign(v2, Exp.Constant(0)),
Exp.Loop(
Exp.IfThenElse(
Exp.LessThan(v2, Exp.Property(p1, "Length")),
Exp.Block(
Exp.Call(v1, set, v2, Exp.Call(p1, get, v2)),
Exp.AddAssign(v2, Exp.Constant(1))
),
Exp.Break(@break)
),
@break),
v1
);
return(Exp.Lambda <Func <int[], int[]> >(block, new ParameterExpression[] { p1 }).Compile());
}
public static InvocationShape CreateFrom(Invocation invocation)
{
var method = invocation.Method;
Expression[] arguments;
{
var parameterTypes = method.GetParameterTypes();
var n = parameterTypes.Count;
arguments = new Expression[n];
for (int i = 0; i < n; ++i)
{
arguments[i] = E.Constant(invocation.Arguments[i], parameterTypes[i]);
}
}
LambdaExpression expression;
{
var mock = E.Parameter(method.DeclaringType, "mock");
expression = E.Lambda(E.Call(mock, method, arguments).Apply(UpgradePropertyAccessorMethods.Rewriter), mock);
}
if (expression.IsProperty())
{
var property = expression.ToPropertyInfo();
Guard.CanRead(property);
Debug.Assert(property.CanRead(out var getter) && method == getter);
}
return(new InvocationShape(expression, method, arguments, exactGenericTypeArguments: true));
}
protected override ExpressionBody Transform(CallExpression lx)
{
if (!_nameResolver.TryResolveFunctionName(lx.OperatorName, out var m))
{
throw new ArgumentException($"The function name `{lx.OperatorName}` was not recognized.");
}
var parameterCount = m.GetParameters().Count(pi => pi.ParameterType == typeof(LogEventPropertyValue));
if (parameterCount != lx.Operands.Length)
{
throw new ArgumentException($"The function `{lx.OperatorName}` requires {parameterCount} arguments.");
}
var operands = lx.Operands.Select(Transform).ToList();
// `and` and `or` short-circuit to save execution time; unlike the earlier Serilog.Filters.Expressions, nothing else does.
if (Operators.SameOperator(lx.OperatorName, Operators.RuntimeOpAnd))
{
return(CompileLogical(LX.AndAlso, operands[0], operands[1]));
}
if (Operators.SameOperator(lx.OperatorName, Operators.RuntimeOpOr))
{
return(CompileLogical(LX.OrElse, operands[0], operands[1]));
}
if (m.GetParameters().Any(pi => pi.ParameterType == typeof(StringComparison)))
{
operands.Insert(0, LX.Constant(lx.IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal));
}
return(LX.Call(m, operands));
}
private LambdaExpression fromEnumerableLambda(Type from)
{
var input = Ex.Parameter(from, "input");
var eType = from.GetTypeInfo().ImplementedInterfaces
.Where(i => i.GenericTypeArguments.Length == 1 && i.GetGenericTypeDefinition() == typeof(IEnumerable <>))
.Select(i => i.GenericTypeArguments[0]).SingleOrDefault()
?? from.GetTypeInfo().GenericTypeArguments[0];
var res = Ex.Parameter(typeof(string), "res");
var result = Ex.Block(new[] { res },
Ex.Assign(res, Ex.Call((from mi in typeof(string).GetTypeInfo().GetDeclaredMethods(nameof(string.Join))
where mi.GetGenericArguments().Length == 1
let par = mi.GetParameters()
where par.Length == 2 &&
par[0].ParameterType == typeof(string) &&
par[1].ParameterType == typeof(IEnumerable <>).MakeGenericType(mi.GetGenericArguments()[0])
select mi).Single().MakeGenericMethod(eType),
Ex.Constant(Separators[0].ToString()), input)),
Ex.Condition(Ex.MakeBinary(Et.Equal, Ex.Property(res, nameof(string.Length)), Ex.Constant(0)),
NoResult(typeof(string)),
Result(typeof(string), res)));
var block = Ex.Condition(Ex.MakeBinary(Et.Equal, input, Ex.Default(from)),
NoResult(typeof(string)),
result);
var lambda = Ex.Lambda(block, input);
return(lambda);
}
protected override ExpressionBody Transform(IndexOfMatchExpression mx)
{
var rx = LX.Constant(mx.Regex);
var target = Transform(mx.Corpus);
return(LX.Call(IndexOfMatchMethod, target, rx));
}
public static IQueryable <TEntity> EagerFetchAll <TEntity>(this IQueryable <TEntity> query)
{
// hack the session reference out of the provider - or is
// there a better way to do this?
//IStatelessSession session = (IStatelessSession)query.Provider.GetType().GetProperty("Session").GetValue(query.Provider);
//ISession session = (ISession)query.Provider.GetType()
// .GetProperty("Session", System.Reflection.BindingFlags.Instance
// | System.Reflection.BindingFlags.NonPublic)
// .GetValue(query.Provider);
var entityType = typeof(TEntity);
var sessionFactory = Ioc.Create <ISessionFactory>();
IClassMetadata metaData = sessionFactory.GetClassMetadata(entityType);
for (int i = 0; i < metaData.PropertyNames.Length; i++)
{
global::NHibernate.Type.IType propType = metaData.PropertyTypes[i];
// get eagerly mapped associations to other entities
if (propType.IsAssociationType && !metaData.PropertyLaziness[i])
{
ParameterExpression par = Expression.Parameter(entityType, "p");
Expression propExp = Expression.Property(par, metaData.PropertyNames[i]);
Type relatedType = null;
LambdaExpression lambdaExp;
string methodName;
if (propType.ReturnedClass.IsGenericCollection())
{
relatedType = propType.ReturnedClass.GetGenericArguments()[0];
var funcType = typeof(Func <,>).MakeGenericType(entityType, typeof(IEnumerable <>).MakeGenericType(relatedType));
lambdaExp = Expression.Lambda(funcType, propExp, par);
methodName = "FetchMany";
}
else
{
relatedType = propType.ReturnedClass;
lambdaExp = Expression.Lambda(propExp, par);
methodName = "Fetch";
}
var fetchManyMethodImpl = typeof(EagerFetchingExtensionMethods).GetMethod(methodName).MakeGenericMethod(entityType, relatedType);
Expression callExpr = Expression.Call(null,
fetchManyMethodImpl,
// first parameter is the query, second is property access expression
query.Expression, lambdaExp
);
LambdaExpression expr = Expression.Lambda(callExpr, par);
Type fetchGenericType = typeof(NhFetchRequest <,>).MakeGenericType(entityType, propType.ReturnedClass);
query = (IQueryable <TEntity>)Activator.CreateInstance(fetchGenericType, query.Provider, callExpr);
}
}
return(query);
}
/// <summary>
/// Filters a sequence of values based on a fulltext search predicate
/// </summary>
/// <typeparam name="T">Any type</typeparam>
/// <param name="source">The source - some IQueryable object.</param>
/// <param name="text">The text - meaning of the search</param>
/// <param name="options">The options for full-text search</param>
/// <returns></returns>
public static IQueryable <T> FullTextSearchQuery <T>(this IQueryable <T> source, string text, FullTextSearchOptions options = null)
{
var pe = Exp.Parameter(typeof(T), "d");
var predicateBody = CreateSubExpression(pe, typeof(T), text, options, isQueriable: true);
if (predicateBody != null)
{
var whereExp = Exp.Lambda <Func <T, bool> >(predicateBody, new ParameterExpression[] { pe });
source = source.Where(whereExp);
}
//Order by Expression
if (options == null)
{
return(source);
}
var orderByProperty = options.OrderBy;
if (string.IsNullOrEmpty(orderByProperty))
{
orderByProperty = typeof(T).GetProperties().First().Name;
}
var property = Exp.Property(pe, orderByProperty);
var lambda = Exp.Lambda(property, pe);
var method = options.IsDescendingOrder ? "OrderByDescending" : "OrderBy";
var orderByExp = Exp.Call(typeof(Queryable), method, new[] { typeof(T), property.Type }, source.Expression, lambda);
source = source.Provider.CreateQuery <T>(orderByExp) as IOrderedQueryable <T>;
return(source);
}
private Expression ReplaceQueryable(Expression expression, object value)
{
MethodCallExpression mc = expression as MethodCallExpression;
if (mc != null)
{
Expression[] args = mc.Arguments.ToArray();
Expression narg = ReplaceQueryable(mc.Arguments[0], value);
if (narg != args[0])
{
args[0] = narg;
return(Expression.Call(mc.Method, args));
}
else
{
return(mc);
}
}
ConstantExpression c = expression as ConstantExpression;
if (c != null && c.Type.GetInterfaces().Contains(typeof(IQueryable)))
{
return(Expression.Constant(value));
}
return(expression);
}
private LambdaExpression toDictLambda(Type from, Type to)
{
var valueType = recordCreator.GetValueType(to);
var recType = typeof(IRecord <>).MakeGenericType(valueType);
var set = recType.GetTypeInfo().GetDeclaredMethod(nameof(IRecord <object> .SetValue));
var input = Ex.Parameter(from, "input");
var tmp = Ex.Parameter(typeof(ConversionResult <>).MakeGenericType(valueType), "tmp");
var res = Ex.Parameter(typeof(IDictionary <,>).MakeGenericType(typeof(string), valueType), "res");
var rec = Ex.Parameter(recType, "rec");
var getters = GetReadablePropertiesForType(from);
var converters = getters.Select(g => Ref.GetLambda(g.PropertyType, valueType));
var end = Ex.Label(typeof(ConversionResult <>).MakeGenericType(to));
var block = Ex.Block(new[] { tmp, res, rec },
Ex.Assign(res, Ex.New(GetParameterlessConstructor(to))),
Ex.Assign(rec, recordCreator.Creator(to).ApplyTo(res)),
Ex.IfThen(Ex.MakeBinary(ExpressionType.Equal, rec, Ex.Default(rec.Type)), Ex.Goto(end, NoResult(to))),
Ex.Block(getters.Zip(converters, (g, c) => new { g, c })
.Select(x =>
Ex.Block(
Ex.Assign(tmp, x.c.ApplyTo(Ex.Property(input, x.g))),
Ex.IfThenElse(Ex.Property(tmp, nameof(IConversionResult.IsSuccessful)),
Ex.Call(rec, set, Ex.Constant(x.g.Name), Ex.Property(tmp, nameof(IConversionResult.Result))),
Ex.Goto(end, NoResult(to)))))),
Ex.Label(end, Result(to, Ex.Convert(res, to))));
return(Ex.Lambda(block, input));
}
public EvaluationCallback Create(Node node)
{
var compilerstate = new CompilerState
{
FunctionState = Exp.Parameter(typeof(Character), "state"),
ErrorVariable = Exp.Parameter(typeof(bool), "error")
};
var result = Make(compilerstate, node);
if (result.Type == typeof(bool))
{
result = ToInteger(result);
}
if (result.Type == typeof(int) || result.Type == typeof(float))
{
// int or float convert to number
var constructor = typeof(Number).GetConstructor(new[] { result.Type });
result = Exp.New(constructor, new[] { result });
// wrap the evaluation in a try..catch
var exceptionParameter = Exp.Parameter(typeof(Exception), "e");
var writeLineMethod = typeof(Console).GetMethod(nameof(Console.WriteLine), new Type[] { typeof(string) });
var toStringMethod = typeof(Exception).GetMethod(nameof(Exception.ToString));
var catchBody = Exp.Block(
Exp.Call(null, writeLineMethod, Exp.Call(exceptionParameter, toStringMethod)),
Exp.Constant(new Number(0)));
result = Exp.TryCatch(result, Exp.Catch(exceptionParameter, catchBody));
// create lambda
var func = Exp.Lambda <Func <Character, bool, Number> >(result, compilerstate.FunctionState, compilerstate.ErrorVariable).Compile();
return(new EvaluationCallback(o => func(o, false)));
}
throw new Exception();
}
public LambdaExpression CreateLambda(Type from, Type to)
{
var fromParameters = from.GetTypeInfo().GenericTypeArguments;
var toParameters = to.GetTypeInfo().GenericTypeArguments;
var converters = fromParameters
.Zip(toParameters, (f, t) => Ref.GetLambda(f, t))
.ToArray();
var input = Ex.Parameter(from, "input");
var res = toParameters.Select(t => Ex.Parameter(typeof(ConversionResult <>).MakeGenericType(t))).ToArray();
var conversion = res.Select((r, i) =>
Ex.Assign(res[i], converters[i].ApplyTo(Ex.PropertyOrField(input, $"Item{i + 1}")))).ToArray();
var conversionSuccesful = Enumerable.Aggregate(res, (Ex)Ex.Constant(true),
(c, p) => Ex.MakeBinary(Et.AndAlso, c, Ex.Property(p, nameof(IConversionResult.IsSuccessful))));
var block = Ex.Block(res,
Ex.Block(conversion),
Ex.Condition(conversionSuccesful,
Result(to,
Ex.Call(Creator(to), Enumerable.Select(res, p => Ex.Property(p, nameof(IConversionResult.Result))))),
NoResult(to)));
var lambda = Ex.Lambda(block, input);
return(lambda);
}
public LambdaExpression CreateLambda(Type from, Type to)
{
var toParameters = to.GetTypeInfo().GenericTypeArguments;
var tupa = toParameters.Length;
var input = Ex.Parameter(from, "input");
var converters = toParameters.Select(p => Ref.GetLambda(typeof(string), p)).ToArray();
var res = toParameters.Select(p => Ex.Parameter(typeof(ConversionResult <>).MakeGenericType(p))).ToArray();
var end = Ex.Label(typeof(ConversionResult <>).MakeGenericType(to), "end");
var indexer = typeof(string[]).GetTypeInfo().GetDeclaredProperty("Item");
var split = Ex.Parameter(typeof(string[]), "split");
var conversion = Ex.Block(converters.Select((c, i) =>
Ex.Block(
Ex.Assign(res[i],
c.ApplyTo(Ex.MakeIndex(split, indexer, new[] { Ex.MakeBinary(Et.Add, Ex.Constant(i), Ex.MakeBinary(Et.Subtract, Ex.Property(split, nameof(Array.Length)), Ex.Constant(tupa))) }))),
Ex.IfThen(Ex.Not(Ex.Property(res[i], nameof(IConversionResult.IsSuccessful))),
Ex.Goto(end, NoResult(to))))));
var block = Ex.Block(new[] { split },
Ex.Assign(split, Ex.Call(input, nameof(string.Split), Type.EmptyTypes, _separator)),
Ex.Condition(Ex.MakeBinary(Et.LessThan, Ex.Property(split, nameof(Array.Length)), Ex.Constant(tupa)),
NoResult(to),
Ex.Block(res,
Ex.IfThen(Ex.MakeBinary(Et.GreaterThan, Ex.Property(split, nameof(Array.Length)), Ex.Constant(tupa)),
Ex.Assign(Ex.ArrayAccess(split, Ex.MakeBinary(Et.Subtract, Ex.Property(split, nameof(Array.Length)), Ex.Constant(tupa))),
Ex.Call(typeof(string), nameof(string.Join), Type.EmptyTypes, _separatorString,
Ex.Call(typeof(Enumerable), nameof(Enumerable.Take), new[] { typeof(string) }, split,
Ex.MakeBinary(Et.Add, Ex.Constant(1), Ex.MakeBinary(Et.Subtract, Ex.Property(split, nameof(Array.Length)), Ex.Constant(tupa))))))),
conversion,
Ex.Label(end, Result(to, Ex.Call(Creator(to), res.Select(r => Ex.Property(r, nameof(IConversionResult.Result)))))))));
var lambda = Ex.Lambda(block, input);
return(lambda);
}
private static TSetLambda CreateSetter <TGetLambda, TSetLambda>(
this Expression <TGetLambda> getter,
Type propertyType)
{
var memberExpression = (MemberExpression)getter.Body;
var property = (PropertyInfo)memberExpression.Member;
var setMethod = property.GetSetMethod();
if (setMethod == null)
{
return(default(TSetLambda));
}
var parameterValue = Expression.Parameter(propertyType);
var callParameter =
Equals(propertyType, memberExpression.Type)
? (Expression)parameterValue
: Expression.Convert(parameterValue, memberExpression.Type);
var newExpression = Expression.Lambda <TSetLambda>(
Expression.Call(memberExpression.Expression, setMethod, callParameter),
getter.Parameters.Concat(new[] { parameterValue })
);
return(newExpression.Compile());
}
public static Expression Call(ProcedureCall call)
{
if (ReferenceEquals(call, null))
{
throw new ArgumentNullException(nameof(call));
}
var services = Services.Instance;
var procedure = services.GetProcedureSignature(call);
if (!procedure.HasReturnType)
{
throw new InvalidOperationException(
"Cannot use a procedure that does not return a value.");
}
var arguments = services.GetArguments(procedure, call.Arguments);
var servicesExpr = LinqExpression.Constant(services);
var executeCallMethod = typeof(Services).GetMethod(
"ExecuteCall", new[] { typeof(Scanner.ProcedureSignature), typeof(object[]) });
var procedureExpr = LinqExpression.Constant(procedure);
var argumentsExpr = LinqExpression.Constant(arguments);
var result = LinqExpression.Call(
servicesExpr, executeCallMethod,
new[] { procedureExpr, argumentsExpr });
var value = LinqExpression.Convert(
LinqExpression.Property(result, "Value"), procedure.ReturnType);
return(new Expression(value));
}
private static Expression MakeComparison(Expression left, string comparison, string value)
{
switch (comparison)
{
case "==":
return(MakeBinary(ExpressionType.Equal, left, value));
case "!=":
return(MakeBinary(ExpressionType.NotEqual, left, value));
case ">":
return(MakeBinary(ExpressionType.GreaterThan, left, value));
case ">=":
return(MakeBinary(ExpressionType.GreaterThanOrEqual, left, value));
case "<":
return(MakeBinary(ExpressionType.LessThan, left, value));
case "<=":
return(MakeBinary(ExpressionType.LessThanOrEqual, left, value));
case "Contains":
return(Expression.Call(MakeString(left), "Contains", Type.EmptyTypes,
Expression.Constant(value, typeof(string))));
case "StartsWith":
case "EndsWith":
return(Expression.Call(MakeString(left), comparison, Type.EmptyTypes,
Expression.Constant(value, typeof(string))));
default:
throw new NotSupportedException($"Invalid comparison operator '{comparison}'.");
}
}
public static Expression Average(Expression arg)
{
CheckIsEnumerable(arg);
var average = typeof(Enumerable).GetMethod("Average", new [] { arg.Type });
return(new Expression(LinqExpression.Call(average, arg)));
}
public static Expression Min(Expression arg)
{
CheckIsEnumerable(arg);
var min = typeof(Enumerable).GetMethod("Min", new [] { arg.Type });
return(new Expression(LinqExpression.Call(min, arg)));
}
public static Expression Sum(Expression arg)
{
CheckIsEnumerable(arg);
var sum = typeof(Enumerable).GetMethod("Sum", new [] { arg.Type });
return(new Expression(LinqExpression.Call(sum, arg)));
}
public void Call_Method_TypeArguments()
{
var expression =
LinqExpression.Call(
typeof(SampleClass).GetMethod(nameof(SampleClass.GenericStaticMethod)).MakeGenericMethod(typeof(object)));
ShouldRoundrip(expression);
}
/// <summary>
/// Creates a function that accepts 0 parameters and returns an untyped result
/// </summary>
/// <param name="Host">The declaring type instance, if applicable</param>
/// <returns></returns>
public Func <object> Func0(object Host = null)
{
var instance = Host != null?XPR.Constant(Host) : default(XPR);
var result = XPR.Convert(XPR.Call(instance, this), typeof(object));
return(XPR.Lambda <Func <object> >(result).Compile());
}
public static Expression ToList(Expression arg)
{
var valueType = GetEnumerableValueType(arg);
var toList = typeof(Enumerable).GetMethod("ToList");
toList = toList.MakeGenericMethod(valueType);
return(new Expression(LinqExpression.Call(toList, arg)));
}
public void Call_Method()
{
var expression =
LinqExpression.Call(
typeof(SampleClass).GetMethod(nameof(SampleClass.StaticMethod)));
ShouldRoundrip(expression);
}
/// <summary>
/// Creates a function that accepts 0 parameters returns a typed result
/// </summary>
/// <param name="Host">The declaring type instance, if applicable</param>
/// <typeparam name="X">The result type</typeparam>
/// <returns></returns>
public static Func <X> Func <X>(this MethodInfo method, object Host = null)
{
var instance = Host != null?XPR.Constant(Host) : default(XPR);
var callResult = XPR.Call(instance, method);
return(XPR.Lambda <Func <X> >(callResult).Compile());
}
public Expr ToExpression()
{
if (Method.IsStatic)
{
return(Expr.Call(Method, Parameters.Select(p => p.ToExpression())));
}
return(Expr.Call(InvocationTarget.ToExpression(), Method, Parameters.Select(p => p.ToExpression())));
}
/// <summary>
/// Creates a function that accepts 1 typed parameter and returns a typed result
/// </summary>
/// <typeparam name="X">The type of the first parameter</typeparam>
/// <typeparam name="Y">The result type</typeparam>
/// <param name="Host">An instance of the declaring type, if applicable</param>
/// <returns></returns>
public static Func <X, Y> Func <X, Y>(this MethodInfo method, object Host = null)
{
var instance = Host != null?XPR.Constant(Host) : default(XPR);
var src = XPR.Parameter(typeof(X), "src");
var callResult = XPR.Call(instance, method, src);
return(XPR.Lambda <Func <X, Y> >(callResult, src).Compile());
}
/// <summary>
/// Creates a function that accepts 3 untyped parameters and returns an untyped result
/// </summary>
/// <param name="Host">The declaring type instance, if applicable</param>
/// <returns></returns>
public Func <object, object, object, object> Func3(object Host = null)
{
var instance = Host != null?XPR.Constant(Host) : default;
var callResult = XPR.Call(null, this, ArgumentExpressions);
var result = XPR.Convert(callResult, typeof(object));
return(XPR.Lambda <Func <object, object, object, object> >(result, GetParameters(3)).Compile());
}
public void Call_Method_Arguments()
{
var expression =
LinqExpression.Call(
typeof(SampleClass).GetMethod(nameof(SampleClass.StaticMethodWithArgument)),
LinqExpression.Constant(0L));
ShouldRoundrip(expression);
}
/// <summary>
/// Creates a function that accepts 2 typed parameters and returns a typed result
/// </summary>
/// <typeparam name="X1">The type of the first parameter</typeparam>
/// <typeparam name="X2">The type of the second parameter</typeparam>
/// <typeparam name="Y">The result type</typeparam>
/// <param name="Host">An instance of the declaring type, if applicable</param>
/// <returns></returns>
public static Func <X1, X2, Y> Func <X1, X2, Y>(this MethodInfo method, object Host = null)
{
var instance = Host != null?XPR.Constant(Host) : default(XPR);
var x1 = XPR.Parameter(typeof(X1), "x1");
var x2 = XPR.Parameter(typeof(X2), "x2");
var callResult = XPR.Call(instance, method, x1, x2);
return(XPR.Lambda <Func <X1, X2, Y> >(callResult, x1, x2).Compile());
}
static ExpressionBody CompileLogical(Func <ExpressionBody, ExpressionBody, ExpressionBody> apply, ExpressionBody lhs, ExpressionBody rhs)
{
return(LX.Convert(
LX.New(
typeof(ScalarValue).GetConstructor(new[] { typeof(object) }) !,
LX.Convert(apply(
LX.Call(CoerceToScalarBooleanMethod, lhs),
LX.Call(CoerceToScalarBooleanMethod, rhs)), typeof(object))),
typeof(LogEventPropertyValue)));
}
private static RuleGenerator /*!*/ CreateGetter(int index)
{
return(delegate(MetaObjectBuilder /*!*/ metaBuilder, CallArguments /*!*/ args, string /*!*/ name) {
metaBuilder.Result = Ast.Call(
Ast.Convert(args.TargetExpression, typeof(RubyStruct)),
typeof(RubyStruct).GetMethod("GetValue"),
Ast.Constant(index)
);
});
}
static Expression ToNumber(Expression Expression)
{
return Expression.Call(LuaEvents_toNumber, Expression);
}
static Expression GetFirstArgumentAsBool(Expression Expression)
{
Expression e = GetFirstArgument(Expression);
return Expression.Call(e, LuaObject_AsBool);
}
static Expression GetAsBool(Expression Expression)
{
return Expression.Call(Expression, LuaObject_AsBool);
}
