Lecture #16 - Projects #3 and #4

use this: type -> { file1, namespace1 }, { file2, namespace2 }, ...    length of list usually 1 instead of this: namespace.type -> { file } to store type information.

Use type, not namespace.type as the table key ! If you build the typetable using namespace.type as the key to store { file } then, when you lookup types, you need to prepend each token with every available namespace in turn until you find a match or find there is no match, since most types you encounter in code will not be qualified. If you use unqualified type as the key, then if the key's list has length 1, you are done. You either have a match or don't. That is, by far, the most likely scenario. If the list has length greater than 1, you simply compare the list's namespaces with the available namespaces. This means that you have to build a using table containing a list of all the using statements that don't start with "System". To that you need to add any declared namespaces in the file.