Tim Chevalier a08a376d6e Make controlflow part of a function type ... Change ty_fn to have a controlflow field. A 'controlflow' is essentially a bit of data that says whether or not this function never returns to the caller (if it never returns, that means it calls "fail" or another "never-returns" function on every control path). Also add syntax for annotating functions that never return: fn foo() -> ! { fail; } for example. Functions marked with ! implicitly have a result type of ty_bot, which is a new type that this commit also adds.		2011-05-20 16:57:37 -07:00
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common.rs	Make controlflow part of a function type	2011-05-20 16:57:37 -07:00
data.rs	rustc: Move the interner to a new module intended to be used for general data structures	2011-05-20 13:57:53 -07:00