private void Visit(AssignmentStmt assign)
{
var il = CurrentMethodIL;
var varSymbol = assign.VariableSymbol;
if (varSymbol.Type.IsArray)
{
var arrVar = assign.Variable as ArrayVariableExpr;
if (varSymbol is GlobalSymbol)
{
var globalVar = varSymbol as GlobalSymbol;
il.Emit(OpCodes.Ldsfld, globalVar.CILField);
Visit((dynamic)arrVar.SubscriptExpr);
Visit((dynamic)assign.AssignmentExpr);
il.Emit(OpCodes.Stelem, varSymbol.Type.CILType.GetElementType());
}
else if (varSymbol is VariableSymbol)
{
var localVar = varSymbol as VariableSymbol;
il.Emit(OpCodes.Ldloc, localVar.CILLocal);
Visit((dynamic)arrVar.SubscriptExpr);
Visit((dynamic)assign.AssignmentExpr);
il.Emit(OpCodes.Stelem, varSymbol.Type.CILType.GetElementType());
}
else if (varSymbol is ParameterSymbol)
{
var localVar = varSymbol as ParameterSymbol;
il.Emit(OpCodes.Ldarg, localVar.CILParameter.Position - 1);
Visit((dynamic)arrVar.SubscriptExpr);
Visit((dynamic)assign.AssignmentExpr);
il.Emit(OpCodes.Stelem, varSymbol.Type.CILType.GetElementType());
}
else
{
throw new Exception("Unexpected symboltype " + varSymbol.GetType());
}
}
else
{
Visit((dynamic)assign.AssignmentExpr);
if (varSymbol is GlobalSymbol)
{
var globalVar = varSymbol as GlobalSymbol;
CurrentMethodIL.Emit(OpCodes.Stsfld, globalVar.CILField);
}
else if (varSymbol is VariableSymbol)
{
var localVar = varSymbol as VariableSymbol;
CurrentMethodIL.Emit(OpCodes.Stloc, localVar.CILLocal);
}
else if (varSymbol is ParameterSymbol)
{
var localVar = varSymbol as ParameterSymbol;
CurrentMethodIL.Emit(OpCodes.Starg, localVar.CILParameter.Position - 1);
}
else
{
throw new Exception("Unexpected symboltype " + varSymbol.GetType());
}
}
}