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rustc: Use only ast_ty_to_ty for region inference

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This commit is contained in:
Patrick Walton 2012-03-13 12:01:34 -07:00
parent 014dd547a0
commit 107767731a
1 changed files with 5 additions and 28 deletions
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33
src/rustc/middle/region.rs
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@ -104,13 +104,13 @@ fn resolve_ty(ty: @ast::ty, cx: ctxt, visitor: visit::vt<ctxt>) {
alt ty.node {
ast::ty_rptr({id: region_id, node: node}, _) {
let region;
alt node {
ast::re_inferred { region = inferred_region; }
ast::re_inferred | ast::re_self { /* no-op */ }
ast::re_named(ident) {
// If at item scope, introduce or reuse a binding. If at
// block scope, require that the binding be introduced.
let bindings = cx.bindings;
let region;
alt list::find(*bindings, {|b| ident == b.name}) {
some(binding) { region = ty::re_named(binding.id); }
none {
@ -138,34 +138,11 @@ fn resolve_ty(ty: @ast::ty, cx: ctxt, visitor: visit::vt<ctxt>) {
}
}
}
let ast_type_to_region = cx.region_map.ast_type_to_region;
ast_type_to_region.insert(region_id, region);
}
ast::re_self {
// For blocks, "self" means "the current block".
//
// TODO: What do we do in an alt?
//
// FIXME: Doesn't work in type items.
alt cx.parent {
pa_item(item_id) | pa_nested_fn(item_id) {
let def_id = {crate: ast::local_crate,
node: item_id};
region = ty::re_caller(def_id);
}
pa_block(block_id) {
region = ty::re_block(block_id);
}
pa_crate {
cx.sess.span_bug(ty.span,
"region type outside item?!");
}
}
}
}
cx.region_map.ast_type_to_region.insert(region_id, region);
}
_ { /* nothing to do */ }
}