internal Expression MakeExpression(RestrictedArguments restrictedArgs)
{
bool[] usageMarkers;
Expression[] spilledArgs;
Expression[] callArgs = GetArgumentExpressions(restrictedArgs, out usageMarkers, out spilledArgs);
Expression call;
MethodBase mb = _overload.ReflectionInfo;
// TODO: make MakeExpression virtual on OverloadInfo?
if (mb == null)
{
throw new InvalidOperationException("Cannot generate an expression for an overload w/o MethodBase");
}
MethodInfo mi = mb as MethodInfo;
if (mi != null)
{
Expression instance;
if (mi.IsStatic)
{
instance = null;
}
else
{
Debug.Assert(mi != null);
instance = _instanceBuilder.ToExpression(ref mi, _resolver, restrictedArgs, usageMarkers);
Debug.Assert(instance != null, "Can't skip instance expression");
}
if (CompilerHelpers.IsVisible(mi))
{
call = AstUtils.SimpleCallHelper(instance, mi, callArgs);
}
else
{
call = Ast.Call(
typeof(BinderOps).GetMethod("InvokeMethod"),
AstUtils.Constant(mi),
instance != null ? AstUtils.Convert(instance, typeof(object)) : AstUtils.Constant(null),
AstUtils.NewArrayHelper(typeof(object), callArgs)
);
}
}
else
{
ConstructorInfo ci = (ConstructorInfo)mb;
if (CompilerHelpers.IsVisible(ci))
{
call = AstUtils.SimpleNewHelper(ci, callArgs);
}
else
{
call = Ast.Call(
typeof(BinderOps).GetMethod("InvokeConstructor"),
AstUtils.Constant(ci),
AstUtils.NewArrayHelper(typeof(object), callArgs)
);
}
}
if (spilledArgs != null)
{
call = Expression.Block(spilledArgs.AddLast(call));
}
Expression ret = _returnBuilder.ToExpression(_resolver, _argBuilders, restrictedArgs, call);
List <Expression> updates = null;
for (int i = 0; i < _argBuilders.Count; i++)
{
Expression next = _argBuilders[i].UpdateFromReturn(_resolver, restrictedArgs);
if (next != null)
{
if (updates == null)
{
updates = new List <Expression>();
}
updates.Add(next);
}
}
if (updates != null)
{
if (ret.Type != typeof(void))
{
ParameterExpression temp = Ast.Variable(ret.Type, "$ret");
updates.Insert(0, Ast.Assign(temp, ret));
updates.Add(temp);
ret = Ast.Block(new[] { temp }, updates.ToArray());
}
else
{
updates.Insert(0, ret);
ret = Ast.Block(typeof(void), updates.ToArray());
}
}
if (_resolver.Temps != null)
{
ret = Ast.Block(_resolver.Temps, ret);
}
return(ret);
}
internal Expression MakeExpression(ParameterBinder parameterBinder, IList <Expression> parameters)
{
bool[] usageMarkers;
Expression[] spilledArgs;
Expression[] args = GetArgumentExpressions(parameterBinder, parameters, out usageMarkers, out spilledArgs);
MethodBase mb = Method;
MethodInfo mi = mb as MethodInfo;
Expression ret, call;
if (!mb.IsPublic || (mb.DeclaringType != null && !mb.DeclaringType.IsVisible))
{
if (mi != null)
{
mi = CompilerHelpers.GetCallableMethod(mi, _binder._binder.PrivateBinding);
if (mi != null)
{
mb = mi;
}
}
}
ConstructorInfo ci = mb as ConstructorInfo;
Debug.Assert(mi != null || ci != null);
if (mb.IsPublic && (mb.DeclaringType == null || mb.DeclaringType.IsVisible))
{
// public method
if (mi != null)
{
Expression instance = mi.IsStatic ? null : _instanceBuilder.ToExpression(parameterBinder, parameters, usageMarkers);
call = AstUtils.SimpleCallHelper(instance, mi, args);
}
else
{
call = AstUtils.SimpleNewHelper(ci, args);
}
}
else
{
// Private binding, invoke via reflection
if (mi != null)
{
Expression instance = mi.IsStatic ? Ast.Constant(null) : _instanceBuilder.ToExpression(parameterBinder, parameters, usageMarkers);
Debug.Assert(instance != null, "Can't skip instance expression");
call = Ast.Call(
typeof(BinderOps).GetMethod("InvokeMethod"),
Ast.Constant(mi),
AstUtils.Convert(instance, typeof(object)),
AstUtils.NewArrayHelper(typeof(object), args)
);
}
else
{
call = Ast.Call(
typeof(BinderOps).GetMethod("InvokeConstructor"),
Ast.Constant(ci),
AstUtils.NewArrayHelper(typeof(object), args)
);
}
}
if (spilledArgs != null)
{
call = Expression.Block(spilledArgs.AddLast(call));
}
ret = _returnBuilder.ToExpression(parameterBinder, _argBuilders, parameters, call);
List <Expression> updates = null;
for (int i = 0; i < _argBuilders.Count; i++)
{
Expression next = _argBuilders[i].UpdateFromReturn(parameterBinder, parameters);
if (next != null)
{
if (updates == null)
{
updates = new List <Expression>();
}
updates.Add(next);
}
}
if (updates != null)
{
if (ret.Type != typeof(void))
{
ParameterExpression temp = Ast.Variable(ret.Type, "$ret");
updates.Insert(0, Ast.Assign(temp, ret));
updates.Add(temp);
ret = Ast.Block(new [] { temp }, updates.ToArray());
}
else
{
updates.Insert(0, ret);
ret = Ast.Convert(
Ast.Block(updates.ToArray()),
typeof(void)
);
}
}
if (parameterBinder.Temps != null)
{
ret = Ast.Block(parameterBinder.Temps, ret);
}
return(ret);
}