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Add a "fake" def_upvar and mechanisms to create it.

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This commit is contained in:
Michael Sullivan 2011-07-22 12:34:47 -07:00
parent e18d70fe12
commit f2f8943a85
2 changed files with 23 additions and 4 deletions
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6
src/comp/syntax/ast.rs
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@ -52,6 +52,11 @@ tag def {
def_use(def_id);
def_native_ty(def_id);
def_native_fn(def_id);
/* A "fake" def for upvars. This never appears in the def_map, but
* freevars::def_lookup will return it for a def that is an upvar.
* It contains the actual def. */
def_upvar(def_id, @def);
}
fn variant_def_ids(&def d) -> tup(def_id, def_id) {
@ -76,6 +81,7 @@ fn def_id_of_def(def d) -> def_id {
case (def_use(?id)) { ret id; }
case (def_native_ty(?id)) { ret id; }
case (def_native_fn(?id)) { ret id; }
case (def_upvar(?id, _)) { ret id; }
}
fail;
}