//-----------------------------------------------------------
private Type Visit(ReturnStatement node, Table table)
{
if (table is GlobalSymbolTable)
{
if (node.Count() != 0)
{
throw new SemanticError("Return statement cannot return values in main section", node.AnchorToken);
}
return(Type.VOID);
}
else
{
Type returnType = Visit((dynamic)node[0], table);
//Search for the procedure in which the return statement was called and compare return types
foreach (KeyValuePair <string, GlobalProcedure> entry in GPTable)
{
var proc = entry.Value;
if (proc.LocalSymbols == table)
{
if (proc.ReturnType != returnType)
{
throw new SemanticError("Incorrect return statement. Expecting a " + proc.ReturnType + ", but found a " + returnType, node.AnchorToken);
}
break;
}
}
return(returnType);
}
}