Jan. 31, 2002
7:51 p.m.
On 31 Jan 2002 at 6:12, Jeremy Hylton wrote:
import mod.sub creates a binding for "mod" in the global namespace
The compiler can detect that the import statement is a package import -- and mark "mod.sub" as a candidate for optimization. A use of "mod.sub.attr" in function should be treated just as "mod.attr".
How can the compiler tell it's a package import? It's bad practice, but people write "import mod.attr" all the time. Heck, Marc-Andre tricks import so that pkg.mod is really pkg.attr where the attr turns into a mod when accessed. No problem, since it's only import that cares what it is. By the time it's used it's always global.attr.attr.... -- Gordon http://www.mcmillan-inc.com/