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5170 Commits

Author SHA1 Message Date
Tim Chevalier
2c6eba00dd Added an extra check in trans_alt 
Gratuitous right now, but I'm going to change the type of trans::type_of
 2011-09-15 20:32:01 -07:00
Tim Chevalier
f41f75fe53 Added more predicates in trans 
Added the non_ty_var predicate (soon to be used)
Added a check in get_res_dtor (will be necessary for a future change
to type_of_fn)
Removed a gratuitous ret
 2011-09-15 20:23:06 -07:00
Tim Chevalier
059952da5b Change a few span_fatals to span_err 2011-09-15 19:51:27 -07:00
Tim Chevalier
994beca00d Add unreachable() fn, also nitpicking 2011-09-15 19:51:27 -07:00
Graydon Hoare
1e3e7d4bc5 Update README slightly. 2011-09-15 16:31:33 -07:00
Graydon Hoare
c94e612ade Begin sketching an ICU binding. Doesn't work yet. 2011-09-15 15:49:17 -07:00
Patrick Walton
18cf4d904c rt: Add libunwind.h support on Mac OS X 2011-09-15 12:52:50 -07:00
Patrick Walton
d1c27ba9e0 Revert "Make option::get return the option contents by reference" due to memory corruption 
This reverts commit fc0bf125168ec3df75bc57c250a62d3ea225a546.
 2011-09-15 12:52:09 -07:00
Marijn Haverbeke
fc0bf12516 Make option::get return the option contents by reference 
I can't believe this actually works!
 2011-09-15 17:49:29 +02:00
Brian Anderson
906f1fc425 Add regression tests for previously ambiguous syntactic forms 2011-09-15 08:47:23 -07:00
Marijn Haverbeke
7364a8c2b0 Prevent binary expressions from parsing when lhs is non-value block 2011-09-15 17:37:10 +02:00
Marijn Haverbeke
93ba85a0f1 Register new snapshot 2011-09-15 17:33:35 +02:00
Marijn Haverbeke
b843cf2117 Generalize expression roots in alias analysis 
This allows calls-returning-a-reference to count as expression roots,
making it possible to return the result of such a call by reference.

Issue #918
 2011-09-15 17:01:35 +02:00
Marijn Haverbeke
29177864c3 Add tests for returning by reference 
Issue #918
 2011-09-15 16:37:37 +02:00
Marijn Haverbeke
3abe3671bd Require the parameter that will be referenced to be noted 
Issue #918
 2011-09-15 16:15:17 +02:00
Marijn Haverbeke
75eee8b194 Overhaul alias-checking of blocks 
The set of active bindings has to be updated as by-reference locals are
encountered.

Issue #918
 2011-09-15 15:43:15 +02:00
Marijn Haverbeke
87fa38910e Make storing returned references in a by-reference local work 
fn f(a: {x: str}) -> &str {
        ret a.x;
    }

    fn main() {
        let x = {x: "hi"};
        let &y = f(x); // Look ma, no copy!
        log_err y;
    }

Issue #918.
 2011-09-15 15:17:14 +02:00
Marijn Haverbeke
25787bd2b8 Forbid assignment to by-reference bindings 
Issue #918
 2011-09-15 14:08:54 +02:00
Marijn Haverbeke
d7a1d6a1cb Make trans understand by-ref bindings 
Issue #918
 2011-09-15 14:00:58 +02:00
Marijn Haverbeke
8aad16112b Implement basic checking of by-reference bindings 
Issue #918
 2011-09-15 13:40:28 +02:00
Marijn Haverbeke
44c6370e6a Move local numbering into ast_map.rs 
This further simplifies the alias pass, which is sorely needed.
 2011-09-15 13:18:32 +02:00
Marijn Haverbeke
1cda74deee Add representation for by-ref let bindings 
Issue #918
 2011-09-15 11:42:56 +02:00
Marijn Haverbeke
197f360e30 Ensure parens are wrapped around composite exprs in call/index/field pos 
This is needed to fix the second example in issue #919
 2011-09-15 11:15:14 +02:00
Marijn Haverbeke
8c83ea564b More thorough check for (.. 10).x in pretty-printer 
Closes #919
 2011-09-15 10:59:06 +02:00
Marijn Haverbeke
63ecc84562 Also handle fail and put in print_maybe_parens_discrim 
Closes #920
 2011-09-15 10:14:52 +02:00
Marijn Haverbeke
3798b6f780 Remove maybe_protect_block kludge from pretty-printer 
It is no longer needed.
 2011-09-15 10:14:52 +02:00
Marijn Haverbeke
0b34e0e60b Introduce new semicolon rules 
- Loop bodies and resource constructors aren't allowed to have
  trailing expressions anymore.

- An expression that ends* in a block without trailing expression can
  can not be called, indexed, or subscripted.

- Only expression-statements that end* in a block without trailing
  expression can omit their semicolon.

*) 'Ending in a trailing expression' is defined as being a block or
   construct-ending-in-a-block (if, alt) that either ends in an
   expression itself, or ends in another block-like expression that
   has a trailing expression (by these same rules).
 2011-09-15 09:49:00 +02:00
Marijn Haverbeke
7298b8f4ba Insert omitted semicolons for statements 2011-09-15 09:49:00 +02:00
Brian Anderson
2bed548d1b xfail-fast run-pass/linked-failure.rs. Not sure what the problem is. 2011-09-14 17:47:48 -07:00
Brian Anderson
a0ad9a42cd Unsupervise tasks before the scheduler kills them. Unblock before yield->fail 2011-09-14 17:05:35 -07:00
Brian Anderson
69eda46af8 Add a run-pass test for linked failure 2011-09-14 15:51:46 -07:00
Brian Anderson
103197bc42 Make failure propagation to dead parents work 
The failure will basically go 'through' the dead parent and continue
propagating the failure (as if the child was reparented).
 2011-09-14 15:48:14 -07:00
Brian Anderson
9505d70513 Make linked task failure work again 2011-09-14 14:20:41 -07:00
Brian Anderson
ad2bdbee08 Add another XFAILed test for failing destructors 2011-09-14 10:59:17 -07:00
Brian Anderson
ca0d3cae5c Add another unwind test 
This makes sure that cleanups added after the first invoke in a scope are
actually run on unwind
 2011-09-14 09:21:28 -07:00
Brian Anderson
31d4fe37f6 Revert "Try a little harder to avoid creating new landing pads" 
This reverts commit b8e31ac46917edcf5922f0b191c5e6c4505830d2.

Conflicts:

	src/comp/middle/trans.rs
 2011-09-14 09:19:31 -07:00
Marijn Haverbeke
93de2f0b74 Add syntax and representation for return-by-mutably-rooted-ref 
This will be used in the near future to decide what can safely
be done with the returned reference.

Issue #918
 2011-09-14 17:30:38 +02:00
Marijn Haverbeke
1cabe37155 Prevent memory errors when returning references to temp args. 
Issue #918
 2011-09-14 16:46:54 +02:00
Marijn Haverbeke
c6619f9ce0 Accept returning refs rooted in an arg from a by-ref funtion 
Issue #918
 2011-09-14 16:19:15 +02:00
Marijn Haverbeke
a3c449df74 Make ast_map.rs index function args, switch it over to simple_visitor 2011-09-14 15:30:59 +02:00
Marijn Haverbeke
cd0e7fc041 Remove some extra white-space introduced by the pretty-printer 2011-09-14 15:20:22 +02:00
Marijn Haverbeke
7d69712dee Disallow implicit arg copying when the function returns a ref 
Issue #918
 2011-09-14 14:57:20 +02:00
Marijn Haverbeke
93d2a4f82a Add support for basic return-by-alias to trans 
Issue #918
 2011-09-14 14:39:08 +02:00
Marijn Haverbeke
9a69ee79e0 Clean up trans_obj.rs a bit 
As a preparation to adding an arg to type_of_fn_full
 2011-09-14 13:49:22 +02:00
Marijn Haverbeke
6cd24173d4 Add a ret_style field to fn_ctxt in trans 2011-09-14 13:48:51 +02:00
Marijn Haverbeke
2aac43d809 Simplify trans::new_fn_ctxt_w_id 
It was still living in the pre-decent-type-inference era.
 2011-09-14 13:26:39 +02:00
Marijn Haverbeke
0699acb6f7 Rudimentary checking of safe alias returns 2011-09-14 13:09:45 +02:00
Marijn Haverbeke
63519d9006 Rename restrict to binding in alias.rs 
Its role gradually changed to the point where the old name doesn't
really make sense anymore.
 2011-09-14 12:06:51 +02:00
Marijn Haverbeke
44df041799 Stop needlessly boxing vectors in alias.rs 2011-09-14 11:37:52 +02:00
Marijn Haverbeke
51dae63c44 Make most of the compiler aware of return-by-reference 
tyencode/tydecode still don't know about it. return_ref will be extended to take
arguments anyway.
 2011-09-14 11:31:05 +02:00