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Use a faked-up function as a key, because functions aren't identical cross-crate in Windows.

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This commit is contained in:
Paul Stansifer 2012-08-24 12:19:19 -07:00
parent 0f996f70a6
commit aa024acae3
3 changed files with 30 additions and 10 deletions
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14
src/libsyntax/parse/token.rs
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@ -325,8 +325,14 @@ mod special_idents {
type ident_interner = util::interner::interner<@~str>;
/** Key for thread-local data for sneaking interner information to the
* serializer/deserializer. It sounds like a hack because it is one. */
fn interner_key(+_x: @@ident_interner) { }
* serializer/deserializer. It sounds like a hack because it is one.
* Bonus ultra-hack: functions as keys don't work across crates,
* so we have to use a unique number. See taskgroup_key! in task.rs
* for another case of this. */
macro_rules! interner_key (
() => (unsafe::transmute::<(uint, uint), &fn(+@@token::ident_interner)>(
(-3 as uint, 0u)))
)
fn mk_ident_interner() -> ident_interner {
/* the indices here must correspond to the numbers in special_idents */
@ -343,8 +349,8 @@ fn mk_ident_interner() -> ident_interner {
|x,y| str::eq(*x, *y), init_vec);
/* having multiple interners will just confuse the serializer */
unsafe{ assert task::local_data_get(interner_key) == none };
unsafe{ task::local_data_set(interner_key, @rv) };
unsafe{ assert task::local_data_get(interner_key!()) == none };
unsafe{ task::local_data_set(interner_key!(), @rv) };
rv
}