public override object Visit(Program that, object value = null)
{
_symbols = that.Symbols;
foreach (Module module in that.Modules)
module.Visit(this);
_symbols = null;
return that;
}
/** Walks the \c Module nodes defined inside the \c Program node. */
public override object Visit(Program that, object value = null)
{
/** Assign the value of the "class global variable" \c _symbols as the remaining methods make use of it. */
/** \note We \b could pass in the symbol table as the \c value parameter, but this is easier and just as fast. */
_symbols = that.Symbols;
// Process each module in input order.
foreach (Module module in that.Modules)
module.Visit(this);
/** Clear the "class global variable" \c _symbols after use. */
_symbols = null;
return that;
}