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rustc: Implement typechecking for simple monomorphic derivable traits on monomorphic types. r=brson

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This commit is contained in:
Patrick Walton
2012-10-22 17:57:10 -07:00
parent 575950d12c
commit 3bf0a9b094
23 changed files with 422 additions and 123 deletions
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6
src/libsyntax/fold.rs
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@@ -248,11 +248,13 @@ fn noop_fold_item_underscore(i: item_, fld: ast_fold) -> item_ {
let struct_def = fold_struct_def(struct_def, fld);
item_class(struct_def, /* FIXME (#2543) */ copy typms)
}
item_impl(tps, ifce, ty, methods) => {
item_impl(tps, ifce, ty, ref methods_opt) => {
item_impl(fold_ty_params(tps, fld),
ifce.map(|p| fold_trait_ref(*p, fld)),
fld.fold_ty(ty),
vec::map(methods, |x| fld.fold_method(*x)))
option::map(methods_opt,
|methods| vec::map(
*methods, |x| fld.fold_method(*x))))
}
item_trait(tps, traits, methods) => {
item_trait(fold_ty_params(tps, fld),