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Beginnings of support for constrained types

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Programs with constrained types now parse and typecheck, but
typestate doesn't check them specially, so the one relevant test
case so far is XFAILed.

Also rewrote all of the constraint-related data structures in the
process (again), for some reason. I got rid of a superfluous
data structure in the context that was mapping front-end constraints
to resolved constraints, instead handling constraints in the same
way in which everything else gets resolved.
This commit is contained in:
Tim Chevalier
2011-07-19 17:52:34 -07:00
parent da2a7e5bd2
commit bd4aeef78b
20 changed files with 606 additions and 366 deletions
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8
src/comp/driver/rustc.rs
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@@ -134,8 +134,8 @@ fn compile_input(session::session sess, ast::crate_cfg cfg, str input,
bind resolve::resolve_crate(sess, ast_map, crate));
auto freevars =
time(time_passes, "freevar finding",
bind freevars::annotate_freevars(sess, d._0, crate));
auto ty_cx = ty::mk_ctxt(sess, d._0, d._1, ast_map, freevars);
bind freevars::annotate_freevars(sess, d, crate));
auto ty_cx = ty::mk_ctxt(sess, d, ast_map, freevars);
time[()](time_passes, "typechecking",
bind typeck::check_crate(ty_cx, crate));
if (sess.get_opts().run_typestate) {
@@ -200,8 +200,8 @@ fn pretty_print_input(session::session sess, ast::crate_cfg cfg,
case (ppm_typed) {
auto amap = middle::ast_map::map_crate(*crate);
auto d = resolve::resolve_crate(sess, amap, crate);
auto freevars = freevars::annotate_freevars(sess, d._0, crate);
auto ty_cx = ty::mk_ctxt(sess, d._0, d._1, amap, freevars);
auto freevars = freevars::annotate_freevars(sess, d, crate);
auto ty_cx = ty::mk_ctxt(sess, d, amap, freevars);
typeck::check_crate(ty_cx, crate);
ann = rec(pre=ann_paren_for_expr,
post=bind ann_typed_post(ty_cx, _));