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1358 Commits

Author SHA1 Message Date
Graydon Hoare
ab3635eebe Encode meta tags in the crate and start sketching enhanced logic for resolving crate "use" directives. 2011-06-09 17:24:32 -07:00
Patrick Walton
c9c1d860f1 rustc: Report type errors in terms of the actual types involved, not type variables 2011-06-09 17:23:15 -07:00
Patrick Walton
5318248f24 rustc: Annotate vector and string literals in the AST with their uniqueness or lack thereof 2011-06-09 17:11:21 -07:00
Patrick Walton
1c48102838 rustc: Add ty_istr and ty_ivec types 2011-06-09 16:23:19 -07:00
Tim Chevalier
1cc3fe567c Improve error message for wrong number of type arguments 
Improve error message in the case where a use of a polymorphic tag has
insufficient type arguments given. Before, the typechecker was
just crashing with a bounds check error.
 2011-06-09 14:50:49 -07:00
Patrick Walton
efcf8570f0 rustc: Remove comment dating back to the rustboot days from typeck 2011-06-09 14:19:04 -07:00
Patrick Walton
c7ca08d1b6 rustc: Remove all calls to resolve_all_vars and the function itself 2011-06-09 14:17:50 -07:00
Patrick Walton
06d706e197 rustc: Remove the call to resolve_all_vars when typechecking field exprs 2011-06-09 14:04:11 -07:00
Patrick Walton
3009574165 rustc: Unify with the root types 2011-06-09 14:04:11 -07:00
Marijn Haverbeke
1146136fa8 Fix double import that now somehow gets caught by resolve 2011-06-09 20:48:06 +02:00
Marijn Haverbeke
4ab862a50d Switch resolve pass to use visit.rs rather than walk.rs 2011-06-09 20:44:04 +02:00
Marijn Haverbeke
d8516178e5 Pass ty params to visit::visit_fn 2011-06-09 20:44:04 +02:00
Tim Chevalier
d1819fb747 Improve an error message in resolve 2011-06-09 11:37:52 -07:00
Tim Chevalier
b34a97de39 Start to check expr_check and expr_call constraints in typestate 
Start writing the cases for expr_check and expr_call to take
predicates into account, but this isn't working yet.
 2011-06-09 11:37:52 -07:00
Tim Chevalier
17ff2a0d79 Further support for predicate constraints 
Changed function types to include a list of constraints. Added
code for parsing and pretty-printing constraints. This necessitated
splitting pprust into two files (pprust and ppaux) to break a
circulate dependency, as ty_to_str now needs to print out constraints,
which may include literals, but pprust depended on ty.
 2011-06-09 11:37:52 -07:00
Patrick Walton
a4663d2845 rustc: Add fast paths for vars and param folds. 3x typechecking speedup. 2011-06-09 11:20:47 -07:00
Patrick Walton
73ae684536 rustc: Don't resolve all type variables eagerly for paths 2011-06-09 10:51:51 -07:00
Marijn Haverbeke
537d879dc1 Properly handle lifetime of aliases in nested blocks 
There was a bug that would cause the alias analyser to allow you to
invalidate an alias that was no longer directly referred to, even if
another alias was rooted in it. It now properly tracks dependencies
between live aliases.

Required another case of copying values in map.rs.
 2011-06-09 14:19:13 +02:00
Marijn Haverbeke
beda82ddf1 A revised, improved alias-checker 
The old system tried to ensure that the location an alias pointed at
would retain its type. That turned out to not be strong enough in the
face of aliases to the inside of tags.

The new system instead proves that values pointed to by aliases are
not replaced (or invalidated in some other way) at all. It knows of
two sufficient conditions for this, and tries to prove at least of
them:

A) The alias is 'immutably rooted' in a local, and this local is not
   reassigned for the lifetime of the alias. Immutably rooted means
   the alias refers to the local itself, or to something reachable
   from the local through immutable dereferencing.

B) No value whose type might include the type of the 'inner mutable
   element' of the thing the alias refers to (for example, the box in
   rec(mutable x = @mutable int)) is from the outer scope is accessed
   for the lifetime of the alias. This means for functions, no other
   argument types may include the alias's inner mutable type. For alt,
   for each, and for, it means the body does not refer to any locals
   originating from outside their scope that include this type.

The lifetime of an alias in an alt, for each, or for body is defined
as the range from its definition to its last use, not to the point
where it goes out of scope. This makes working around these
restrictions somewhat less annoying. For example, you can assign to
your alt-ed value you don't refer to any bindings afterwards.
 2011-06-09 13:11:29 +02:00
Marijn Haverbeke
bd90c7a3cb Add new visitor framework 2011-06-09 13:08:38 +02:00
Patrick Walton
6feb1dfd76 rustc: Don't eagerly resolve type variables after unification 2011-06-08 18:42:34 -07:00
Patrick Walton
cc7a8b668f rustc: Make resolve_all_vars() check to see whether the type actually has vars before folding over it; also remove some debug code. 2x typechecking speedup. 2011-06-08 18:05:45 -07:00
Patrick Walton
7527084e62 rustc: Don't generate so many variables when typechecking functions; remove mo_either 2011-06-08 18:05:45 -07:00
Patrick Walton
99c72b98b5 rustc: Use cnames in ty_to_str again; debugging code crept in 2011-06-08 15:49:46 -07:00
Patrick Walton
cc06bd4aa5 rustc: Add some miscellaneous demands that pushdown had previously caught; put out burning tinderbox 2011-06-08 15:33:16 -07:00
Patrick Walton
4571172c03 rustc: Remove pushdown. 15 second improvement. 2011-06-08 12:24:05 -07:00
Graydon Hoare
f54f2799c3 Merge pull request #403 from espindola/newllvm 
Update rust to build with newer llvm versions.
 2011-06-08 11:41:01 -07:00
Rafael Ávila de Espíndola
698022d351 Update rust to build with newer llvm versions. 2011-06-08 14:08:24 -04:00
Patrick Walton
08dcb9306b rustc: Remove all traces of the unification cache 2011-06-08 10:52:12 -07:00
Rafael Ávila de Espíndola
d360c481e8 Don't force the fetch of main.o from main.a, we are not using main.a anymore. 2011-06-08 13:47:21 -04:00
Josh Matthews
2235fb73ef Add optional message to fail. 2011-06-08 04:02:55 -04:00
Patrick Walton
0857d22c04 rustc: Print out a real error message on unresolved types. Puts out burning tinderbox. 2011-06-07 23:03:41 -07:00
Patrick Walton
ddec6b5f47 rustc: Use a set-based approach to unification; remove ty_bound_param and ty_local. 
Sorry, big perf regression; will fix soon.
 2011-06-07 19:33:18 -07:00
Graydon Hoare
721c5bbee8 More work on proper linkage name-mangling. Almost right, aside from version numbers. 2011-06-07 18:08:17 -07:00
Lindsey Kuper
a4ca75e6af For consistency, use ctxt instead of ty_ctxt outside of unify. 2011-06-07 15:18:30 -07:00
Lindsey Kuper
ab69c4a98f Removing dead code and redundant fails; changing fails to sess.bug 
calls (issue #444).
 2011-06-07 14:12:34 -07:00
Rafael Ávila de Espíndola
b1d6f12a05 Don't put a copy of main (the C one) in each binary we produce. This is a step 
in getting a driver that works on all linux systems.

Sorry for the linker hacks, I will remove them after snapshotting a new compiler.
 2011-06-07 16:56:27 -04:00
Graydon Hoare
319156c8d1 Begin tidying up name-mangling rules. 2011-06-06 15:48:47 -07:00
Rafael Ávila de Espíndola
ee54fa5c7d Implement enough support for pointer to get an identity function working. 2011-06-06 16:36:01 -04:00
Marijn Haverbeke
4bd5f834b0 First take on an alias-safety checker 
The alias checker works by ensuring that any value to which an alias
is created is rooted in some way that ensures it outlives the alias.

It is now disallowed to create an alias to the content of a mutable
box, or to a box hanging off a mutable field. There is also machinery
in place to prevent assignment to local variables whenever they are
the root of a live alias.
 2011-06-06 21:24:03 +02:00
Marijn Haverbeke
2b334f061a Change unsafe aliases 
This litters aberrations like 'alt({foo.bar}) { ... }' and f({*baz})
though the code (mostly in trans.rs). These are a way to explicitly
copy the given value so that it can be safely aliased. At some point
we'll probably want a more explicit copy operator.
 2011-06-06 21:09:55 +02:00
Brian Anderson
4d8f715dab rustc: Make resolve::unresolved return !. Remove redundant fails 2011-06-05 00:11:44 -04:00
Lindsey Kuper
2736d63db0 Adding comments; removing dead code. 2011-06-04 19:38:11 -07:00
Lindsey Kuper
5f95766a40 Remove redundant 'fail' exprs and dead code; use sess.bug or 
sess.span_err instead of 'fail'.  (issue #444)
 2011-06-04 18:34:40 -07:00
Lindsey Kuper
69325f815d More comments. 2011-06-03 17:16:28 -07:00
Lindsey Kuper
dcf7fbf833 Comments and cleanup. 2011-06-03 17:09:50 -07:00
Graydon Hoare
088ab03fdb Add spans to fields, args, methods. Improve pp of same. 2011-06-03 15:42:42 -07:00
Rafael Ávila de Espíndola
ba74c6cfdc Boilerplate for pointers. Sorry for missing this on the first patch. 2011-06-03 15:02:58 -04:00
Lindsey Kuper
dc29dead2e Removing redundant "fail"s. 2011-06-02 18:15:29 -07:00
Patrick Walton
ad9afefa10 rustc: Typecheck patterns from the top down; remove pushdown_pat 2011-06-02 18:11:26 -07:00
Tim Chevalier
ba377c043d Handle _|_ values properly in trans 
Generate an LLVMUndef value of the proper type for an argument of
type _|_. Otherwise we get an LLVM assertion failure.
 2011-06-02 17:52:04 -07:00
Tim Chevalier
468786e36d Fix unification bug 
Hello from SFO Terminal 3!

unify_fn_common had the expected and actual types reversed in one
place. This was causing the type of an occurence of a function f
with type fn(int) -> T to be set to fn(_|_) -> T at a call site like
f(fail); I think this was also making some of the type error messages
come out backwards, but I haven't checked.

Also: ty_bot does not contain pointers
 2011-06-02 17:52:04 -07:00
Patrick Walton
c515ed13de Merge pull request #450 from paulstansifer/quick_error_message_fix_2 
Flatten functions and objects in trans::simplify_type.
 2011-06-02 17:43:11 -07:00
Paul Stansifer
20bd927c3f Flatten functions and objects in trans::simplify_type. 2011-06-02 17:40:12 -07:00
Lindsey Kuper
3a6b5576ac Refactor make_fp_cmp_glue and make_integral_cmp_glue into one. 2011-06-02 16:35:25 -07:00
Paul Stansifer
1377e9b341 Implement pcwalton's code review suggestions. 2011-06-02 15:12:17 -07:00
Paul Stansifer
5cd10d2fef Error message, instead of segfault, when recursive types are used. 2011-06-02 14:03:17 -07:00
Tim Chevalier
24c9d7e5f8 Improve type error message for non-constructor in pattern 2011-06-01 18:15:12 -07:00
Tim Chevalier
1402cd101b Redo typestate-related data structures to support predicate constraints. No actual support yet, just infrastructure. 2011-06-01 18:14:48 -07:00
Lindsey Kuper
528c6516f0 Use span_err instead of err. Fixes issue #444. 2011-06-01 17:22:23 -07:00
Patrick Walton
af9272f70e rustc: Remove rustboot workaround from walk::default_visitor() 2011-06-01 16:52:22 -07:00
Patrick Walton
8851ae0423 rustc: Allow walking over patterns 2011-06-01 16:47:24 -07:00
Lindsey Kuper
dba9caeba9 Comments. 2011-06-01 16:39:52 -07:00
Rafael Ávila de Espíndola
a6ca9c2922 Don't create an empty section. 2011-06-01 15:59:28 -04:00
Rafael Ávila de Espíndola
30efdeeca1 Visibility is an ELF concept and protected visibility is not very well implemented, 
avoid using it for now.

Instead, mark pairs that are not needed elsewhere as internal.
 2011-06-01 15:45:31 -04:00
Lindsey Kuper
649a7bf38a Comments and cleanup. 2011-06-01 11:34:52 -07:00
Paul Stansifer
9f5dddf08c Now imports are not re-exported unless 'export' is explicitly used. 2011-05-31 18:43:26 -07:00
Michael Sullivan
fd1029e6dd Support move as an initializer. 2011-05-31 17:39:14 -07:00
Michael Sullivan
c232964301 Implement move semantics. 2011-05-31 17:39:14 -07:00
Michael Sullivan
5e7bba3d23 Insert plumbing for move that behaves just like assign. 2011-05-31 17:39:14 -07:00
Eric Holk
84a56ed7cd Teach the compiler to understand yield and join, as well as using task as a type name. 2011-05-31 16:28:13 -07:00
Brian Anderson
9daa00bf83 rustc: Teach rustc to use block results as fn return values. Closes #372 2011-05-31 19:18:55 -04:00
Rafael Ávila de Espíndola
cc96eeafca Move rust_vec_append_glue to rt. 2011-05-31 14:32:08 -04:00
Graydon Hoare
b6971d94df Consolidate formatting functions a bit more. 2011-05-31 11:00:47 -07:00
Graydon Hoare
b48cab962a Add span to field to catch per-field comments in rec exprs. 2011-05-31 11:00:47 -07:00
Rafael Ávila de Espíndola
e66f9e46f6 Start finishing up the rust_start signature transition. 2011-05-31 11:17:17 -04:00
Marijn Haverbeke
7d68cbdff0 Have blocks return their result by writing to a reserved space 
This makes it possible to pass the location of that space through to
nested blocks, resulting in less copying, taking, and dropping.

This makes the compiler slightly faster and 19k smaller.

A FIXME is to use 'move' semantics when returning the values from the
block -- don't bump the refcount and drop it again for the returning
block, but simply assign ownership to the receiver. To do this, we'll
need a way to (safely) scrub things from a block's cleanup list.
 2011-05-31 14:29:16 +02:00
Brian Anderson
81fc2d8728 rustc: Remove unneeded type params from alt patterns 2011-05-31 01:23:53 -04:00
Brian Anderson
c7e3f88c93 rustc: Pushdown type params for tag patterns. Closes #363 2011-05-31 00:00:04 -04:00
Tim Chevalier
18883fea3a In pre/postcondition computation, failing calls should set the postcondition 
A non-returning call should have a postcondition in which all predicates
are true -- not just a poststate. Otherwise, alt expressions where
one or more branches terminate in a non-returning call and others
initialize a variable get rejected.

Includes a test case.
 2011-05-27 20:43:51 -07:00
Tim Chevalier
95e1aa18c1 change comment 2011-05-27 20:43:51 -07:00
Tim Chevalier
9a24e4f780 Fix two typestate bugs 
* Non-returning calls should set all predicates to be true, not
  just the "this function returns" predicate

* Fixed a bug in the expr_alt case in tstate.states that wasn't updating
  the changed flag properly, then fixed *another* bug that was updating
  it too enthusiastically, but was masked by the first bug.
 2011-05-27 20:43:51 -07:00
Lindsey Kuper
dc9d5e1689 Lots of comments, and some more descriptive names. 2011-05-27 18:20:43 -07:00
Tim Chevalier
b6e0c5829f Check the declaration type in a for loop against the sequence type 
Changed the typechecker to correctly typecheck the declared variable
type in a for or for-each loop against the vector element type (for
a for loop) or the iterator type (for a for-each loop). Added a
test case.
 2011-05-27 17:42:09 -07:00
Tim Chevalier
0c5a55f275 add a function that returns the type of a local decl 2011-05-27 17:34:50 -07:00
Eric Holk
52795049e7 Generating names for wrappers, removed extra logging 2011-05-27 15:37:19 -07:00
Eric Holk
8cfc388d40 Switched calling conventions so that spawn with multiple arguments works. 2011-05-27 15:20:58 -07:00
Eric Holk
d49998f0ed Switching over to wrappers for spawning functions of multiple arguments. Doesn't quite work yet. 2011-05-27 15:20:58 -07:00
Eric Holk
da0e0b6f5e Removing excessively verbous logging. 2011-05-27 15:20:58 -07:00
Eric Holk
a88af906c5 Programs using spawn terminate 2011-05-27 15:20:58 -07:00
Eric Holk
dad426419c Working on 2 argument spawn. The arguments seem to be copied correctly once, but then they get lost. 2011-05-27 15:20:58 -07:00
Eric Holk
bb4c7a9c68 Arguments seem to be correctly passed to child processes now. 2011-05-27 15:20:58 -07:00
Eric Holk
21efd07bc1 New tasks run, but their arguments get lost and something ends up in an infinite loop when the task exits. 2011-05-27 15:20:58 -07:00
Tim Chevalier
0cbcf92749 Use annotations on blocks 
Previously, block_ty returned the type of the terminating
expression of the block (or nil if said expression was absent).
I changed check_expr to write the type of that expression into
the annotation for the block itself, so now block_ty can use the
block's annotation.
 2011-05-27 12:21:37 -07:00
Tim Chevalier
1a96e79fe0 Make _|_ unify with anything 
The typechecker had a number of special cases for unifying types
with _|_ (as with checking if and alt). But, a value of type _|_
should be usable in any context, as such a value always diverges,
and will never be used by its immediate context. Changed unify
accordingly, removed special cases.
 2011-05-26 20:50:25 -07:00
Paul Stansifer
af6b4821c1 Handle circularity in glob imports in a more elegant fashion. 2011-05-27 02:42:33 +00:00
Paul Stansifer
7fe3d821ac Add a map from def_id s to items in resolve::env. 
Use it to provide better error messages in the event of
glob-importing the same name multiple times.
 2011-05-27 02:42:33 +00:00
Paul Stansifer
54ca8565c9 Fix bugs: make sure glob imports show up in the right module, 
and make sure that circular glob imports don't diverge.
 2011-05-27 02:42:33 +00:00
Paul Stansifer
40fe44d23e "import module::*;" now works. 2011-05-27 02:42:33 +00:00
Paul Stansifer
e2bb98001e Part one of adding globbing to resolve.rs: build up glob links. (Part two will follow those links if non-glob resolution fails.) 2011-05-27 02:42:32 +00:00
Graydon Hoare
79c9e13073 More delicious dead code removal from runtime, upcalls. 2011-05-26 18:21:02 -07:00
Tim Chevalier
4f792f2dbb Track spans for each local variable in typestate 
This lets us print better messages in situations with name
shadowing.
 2011-05-26 18:14:32 -07:00
Tim Chevalier
250643c549 Remove unused imports 2011-05-26 18:01:48 -07:00
Graydon Hoare
9f95538462 Remove redisue of unused fields from 'ann'. 2011-05-26 17:26:59 -07:00
Graydon Hoare
2561b01211 Remove residual uses of fold, and fold itself. 2011-05-26 17:16:54 -07:00
Graydon Hoare
8e945dcd81 Remove native glues. All calls to C are direct now. 2011-05-26 16:45:01 -07:00
Michael Sullivan
1b29892b5b Produce a useful error message in trans when attempting to log an unsupported type. 
(Previously, an llvm assert was tripped.)
 2011-05-25 18:54:33 -04:00
Eric Holk
d72d50473f Fixing typechecking for spawn. 2011-05-25 18:01:45 -04:00
Rafael Ávila de Espíndola
94129c4216 dead argument removal part one. 2011-05-25 15:33:57 -04:00
Brian Anderson
9a88ba2b81 rustc: Downcase typeck::demand and typeck::pushdown 2011-05-24 20:26:46 -04:00
Brian Anderson
6473b73174 rustc: Use demand functions instead of open-coded typecheck for spawn 
Un-xfail spawn-non-nil-fn
 2011-05-24 20:23:21 -04:00
Rafael Ávila de Espíndola
de2e84e5b0 Only one gc glue. 2011-05-24 18:52:31 -04:00
Rafael Ávila de Espíndola
ac836dd79c There is only one yield glue. 2011-05-24 18:29:08 -04:00
Rafael Ávila de Espíndola
b1292580b9 Remove dead code for unwind_glue. 2011-05-24 17:28:37 -04:00
Rafael Ávila de Espíndola
0fc91b6ecc There is only one activate function now. 2011-05-24 17:00:45 -04:00
Eric Holk
2e8afc7b47 Merge pull request #404 from lkuper/cleanup 
Just removing some unnecessary imports.
 2011-05-24 13:51:00 -07:00
Marijn Haverbeke
fbc0e840e3 Stop showing a 'cyclic import' message for unresolved imports 
This only happened for single-length import paths, because the import
was being looked up in its own scope.
 2011-05-24 20:58:38 +02:00
Lindsey Kuper
f1d3b88f0a Just removing some unnecessary imports. 2011-05-24 11:22:40 -07:00
Tim Chevalier
bad05e20a3 Improve nonexistent-module error message 
The error message for (for example) "import vec;" without "use std;"
was "cyclic import", which was misleading because there were no
cycles. I changed it to "cyclic import or nonexistent module",
which doesn't break existing tests.
 2011-05-24 10:47:58 -07:00
Tim Chevalier
c9a8bdee2f Improve error message for ambiguous polymorphic types 
If a type still contains free type variables after typechecking (for
example, as with "auto foo = []", the result was an assertion failure
in typeck. Made it a human-readable error message instead.
 2011-05-23 19:46:27 -07:00
Tim Chevalier
b620be9cd2 Typecheck @[] correctly 
Previously, if you wrote
let @vec[int] foo = @[];

that would be a type error. That didn't seem right, so I changed
pushdown to unify the inner type in an unop application with the
argument type of the operator type.
 2011-05-23 17:17:49 -07:00
Tim Chevalier
2a73c4ffab Add line breaks to typestate error messages 2011-05-23 13:32:29 -07:00
Brian Anderson
d82e9c1874 rustc: Add a FIXME to expr_alt type checking 2011-05-21 18:35:21 -04:00
Brian Anderson
4504e23a82 rustc: Remove unnecessary pushdown from check_expr in the expr_if case 2011-05-21 18:18:48 -04:00
Brian Anderson
e24d7ae967 rustc: If all if branches are _|_, then the entire if is _|_ 2011-05-21 18:18:48 -04:00
Brian Anderson
085fb1a2db rustc: Remove outdated comment 2011-05-21 14:43:04 -04:00
Brian Anderson
b62bf8cede rustc: Allow if expressions to fail 2011-05-21 14:22:01 -04:00
Brian Anderson
6824f119fc rustc: Allow alt expressions to fail 2011-05-21 13:22:01 -04:00
Brian Anderson
418b4c4567 rustc: Assign ty_bot to nodes in write::bot_ty. Remove FIXME 2011-05-21 13:02:58 -04:00
Brian Anderson
779dd809d2 rustc: Blocks shouldn't try to return results for ty_bot 2011-05-21 12:56:31 -04:00
Tim Chevalier
755ca8eb73 Correctly check that ! functions always diverge 
Also make _|_ unify with any type.
 2011-05-20 19:54:14 -07:00
Brian Anderson
2fc0bedc83 rustc: Don't write metadata for unexported items 2011-05-20 21:32:57 -04:00
Tim Chevalier
467b938ea8 Merge remote-tracking branch 'graydon/master' into typestate_4 2011-05-20 18:23:03 -07:00
Tim Chevalier
964898eaf1 Error instead of warning for missing returns. Huzzah! 2011-05-20 18:20:54 -07:00
Lindsey Kuper
c3410bf927 More work on anonymous objects. 2011-05-20 17:59:56 -07:00
Tim Chevalier
c8d488b337 Change node_ann hash table to a vector in typestate 2011-05-20 16:57:37 -07:00
Tim Chevalier
9128a1bab8 rm unnecessary logging 2011-05-20 16:57:37 -07:00
Tim Chevalier
7e82f23bc0 rm unused import 2011-05-20 16:57:37 -07:00
Tim Chevalier
551fb13689 Add a "fail" after a while(true) loop in two places 
(in preparation for changing the "function may not return" warning
to an error)
 2011-05-20 16:57:37 -07:00
Tim Chevalier
a08a376d6e Make controlflow part of a function type 
Change ty_fn to have a controlflow field. A 'controlflow' is
essentially a bit of data that says whether or not this function
never returns to the caller (if it never returns, that means it calls
"fail" or another "never-returns" function on every control path).

Also add syntax for annotating functions that never return:

fn foo() -> ! {
   fail;
}

for example. Functions marked with ! implicitly have a result type of
ty_bot, which is a new type that this commit also adds.
 2011-05-20 16:57:37 -07:00
Eric Holk
0de27ce8bd Translated start_task, but it fails on spp == align_down(spp) 2011-05-20 16:51:09 -07:00
Eric Holk
d01948cd07 Called the new_task upcall. There are refcount issues though. 2011-05-20 16:51:08 -07:00
Eric Holk
219351e4b9 A little closure towards translating spawn. We're about ready to do the upcall, except that rustc segfaults. 2011-05-20 16:51:08 -07:00
Eric Holk
d6338a8c15 Added some comments to trans_spawn that sort of explains what needs to happen 2011-05-20 16:51:08 -07:00
Eric Holk
2b124a8140 Started working on translating spawn. It correctly generates the task name in the case that it is not provided. 2011-05-20 16:51:08 -07:00
Graydon Hoare
fa75703700 Twiddle glue inlining heuristics. ~10% win on build time. 2011-05-20 14:57:52 -07:00
Graydon Hoare
67b8501eb8 Elide a bunch of do-nothing take glue. 2011-05-20 14:50:57 -07:00
Graydon Hoare
381ba1d0ba Remove redundant secondary declaration of glue. 2011-05-20 14:48:33 -07:00
Patrick Walton
7e43a31f08 rustc: Move the interner to a new module intended to be used for general data structures 2011-05-20 13:57:53 -07:00
Brian Anderson
b6d2fe4d74 rustc: Translate else if blocks the same as other blocks. Closes #388 2011-05-19 23:32:09 -04:00
Brian Anderson
879a952a37 rustc: Find the correct outer scope in trans_block 2011-05-19 23:32:08 -04:00
Rafael Ávila de Espíndola
40b511a7c5 Revert 106216d673. 
This depends on llvm's 131294.
 2011-05-19 18:30:19 -07:00
Graydon Hoare
494c0c3b61 After all that, give up on "complex" version of type_has_pointers and just manually inspect. Can't calculate property during interning. 2011-05-19 18:28:09 -07:00
Graydon Hoare
7f938f4945 Move the ty_item_table into ty::ctxt.items, move variant_info to ty, and start sketching the contains_pointer property on types. 2011-05-19 17:21:36 -07:00
Graydon Hoare
1d67ee0e88 Remove type_glue.rs, don't think it's going to work. 2011-05-19 17:21:36 -07:00
Patrick Walton
bc87ecf110 rustc: Unify variables using a single type instead of keeping a list and doing it all at the end. This will give us better error messages. 2011-05-19 16:07:12 -07:00
Graydon Hoare
a4dd57705c Move type cache and node type table into type context. 2011-05-19 15:47:15 -07:00
Marijn Haverbeke
8a7b544995 Finish name collision testing. 
And fix a the single screw-up in the source code it caught.
 2011-05-19 21:58:57 +02:00
Paul Stansifer
533d3055f3 No functional change. Largely removed the native module/non-native module distinction from resolve.rs 2011-05-19 12:13:35 -07:00
Tim Chevalier
b74d0d7c3d Typestate checking code no longer uses fold -- only walk. 2011-05-19 11:40:16 -07:00
Tim Chevalier
d60e08c18e Eliminate explicit recursion in tstate.states (walk does that now), 
and kill dead code.
 2011-05-19 11:40:16 -07:00
Tim Chevalier
e1844d2719 Add ann as an argument to visit_fn 2011-05-19 11:40:16 -07:00
Tim Chevalier
6dcd607277 make trans compile 2011-05-19 11:40:16 -07:00
Tim Chevalier
a9bc6715e7 tidy tstate.collect_locals 2011-05-19 11:40:16 -07:00
Tim Chevalier
c0f728712b Rewrite pre_postconditions to use walk instead of fold 2011-05-19 11:40:16 -07:00
Tim Chevalier
2cd769e358 Add ident as an argument to visit_fn (typestate wants it) 2011-05-19 11:40:16 -07:00
Tim Chevalier
ef5473deb1 Trim imports 2011-05-19 11:40:16 -07:00
Tim Chevalier
bb594a03a1 remove now-unused ts field from ann 2011-05-19 11:40:16 -07:00
Tim Chevalier
e16b097599 Rewrite tstate.annotate to use walk instead of fold 
and various other tidying in typestate
 2011-05-19 11:40:16 -07:00
Tim Chevalier
dc83c84662 Add visit_fn_pre and visit_fn_post fields to visitors 
Added visit_fn_pre and visit_fn_post fields that get applied to
both regular functions and methods.
 2011-05-19 11:40:16 -07:00
Tim Chevalier
8cbdaf4f93 Make trans use span_err for the dreaded "ty_var in trans::type_of" error 
This required quite a bit of tiresome plumbing about of spans.
On the bright side, now other errors can be converted to span_err too.

Includes test cases.
 2011-05-19 11:40:16 -07:00
Tim Chevalier
f909dd114d Remove dead file (typestate_check is now a bunch of modules under middle/tstate) 2011-05-19 11:40:16 -07:00
Tim Chevalier
b624b43e47 Beginning of Operation Eliminate Folds 
Started by rewriting collect_locals to use walk instead of fold
 2011-05-19 11:40:16 -07:00
Tim Chevalier
4964023c5e Fix an error message that reversed the expected and actual number of arguments in a pattern 2011-05-19 11:40:16 -07:00
Patrick Walton
6417610788 rustc: Generalize variable bindings so that we can use it for locals too 2011-05-19 11:14:44 -07:00
Patrick Walton
df90934bf7 rustc: Split write_* in typeck into versions that will record fixups 2011-05-18 19:19:20 -07:00
Patrick Walton
d2bdfe36cf rustc: Don't inline free glue 2011-05-18 18:48:57 -07:00
Graydon Hoare
6f8b9e176f Factor free paths out of drop glue, into free glue as in rustboot. 2011-05-18 17:28:08 -07:00
Patrick Walton
0aee8b3bd7 rustc: Thread statement contexts through unification 2011-05-18 15:36:14 -07:00
Rafael Ávila de Espíndola
bb7d4e15a8 Remove dead code. 2011-05-18 16:33:22 -04:00
Marijn Haverbeke
28c4a5586e Start checking name collisions in modules 
(And remove a boatload of duplicate imports from the typestate files.)

Name collision checking in local scopes will follow soon.
 2011-05-18 22:24:20 +02:00
Patrick Walton
13d9f6a264 rustc: Split out type variable fixups from unification 2011-05-18 13:08:54 -07:00
Patrick Walton
37d5dd9471 rustc: Group the variable binding machinery into a separate data structure during unification 2011-05-18 11:54:12 -07:00
Rafael Ávila de Espíndola
a795d0e5b2 And yet more dead code. 2011-05-18 14:28:08 -04:00
Patrick Walton
f4e049c415 rustc: Thread a statement context through the typechecker; use it for generating variable IDs. 40% typechecking speedup. 2011-05-17 22:21:31 -07:00
Patrick Walton
fdf8c49882 rustc: Don't rebuild the AST when typechecking statements 2011-05-17 21:09:34 -07:00
Patrick Walton
ace8058277 rustc: Have typechecking no longer rebuild the AST 2011-05-17 20:13:04 -07:00
Brian Anderson
a98ea4f3ef rustc: Run block cleanups on else if blocks 
With the scheme used to translate 'else if' currently the if expression is
translated in a new (else) scope context. If that if expression wants to
result in a value that requires refcounting then it will need to drop the
refcount in the cleanups of the else block.
 2011-05-17 22:25:24 -04:00
Patrick Walton
e840a37f33 rustc: Remove typeck::check_item_fn(); it's entirely superfluous! 2011-05-17 19:20:24 -07:00
Patrick Walton
87288a186d rustc: Make check_const() not rebuild the AST (although it's not called at the moment!) 2011-05-17 19:13:16 -07:00
Patrick Walton
d21741843c rustc: Make check_block not rebuild the AST 2011-05-17 19:10:24 -07:00
Patrick Walton
10503a4a02 rustc: Don't rebuild the AST when writing back locals 2011-05-17 19:00:29 -07:00
Patrick Walton
8637a4eaf3 rustc: Pull the type out of the correct expression when typechecking channel types. Puts out burning tinderbox. 2011-05-17 18:19:45 -07:00
Patrick Walton
83e1dc63c2 rustc: Fix return value of expr_spawn case in pushdown_expr. Should put out soon-to-be-burning tinderbox. 2011-05-17 17:44:30 -07:00
Patrick Walton
c6d4c31ee4 rustc: Don't rebuild the AST when typechecking expressions 2011-05-17 17:43:06 -07:00
Eric Holk
cff9a3cc2a Fixing compile problems from recent changes. 2011-05-17 14:38:32 -07:00
Eric Holk
cf02c67137 Removing the TODO comment. 2011-05-17 14:38:32 -07:00
Eric Holk
8d10594ed5 Added a few more expr_spawn cases so the spawn.rs test case gets a little further before failing. 2011-05-17 14:38:32 -07:00
Patrick Walton
37768cba92 rustc: Don't rebuild call or bind expressions during typechecking 2011-05-17 14:37:23 -07:00
Patrick Walton
f300de2963 rustc: Make return value checking warnings a little prettier. Also introduce a new "note" diagnostic level. 2011-05-17 14:12:49 -07:00
Patrick Walton
5047ab0b0c rustc: Flatten annotations 2011-05-17 13:55:32 -07:00
Marijn Haverbeke
09d8ef8d51 Finally rename std::_xxx to std::xxx 
Except for _task, which is still a keyword.
 2011-05-17 20:41:41 +02:00
Brian Anderson
fbfd8552ab Return a better result from blocks. Closes issue #377 
Blocks return in a copy of the result of their ending expression, not the
direct result of the ending expression, as that may be a local variable which
gets zeroed by drop_slot.
 2011-05-17 00:46:56 -04:00
Graydon Hoare
4c5e315843 Rename aux.rs to auxiliary.rs since win32 doesn't like files named "aux". Really. 2011-05-16 19:21:29 -07:00
Graydon Hoare
a2e2e78103 Merge remote branch 'origin/master' into HEAD 
Conflicts:
	src/comp/middle/trans.rs
 2011-05-16 19:04:45 -07:00
Graydon Hoare
fbbc1a77d2 Rewrite everything to use [] instead of vec() in value position. 2011-05-16 18:21:22 -07:00
Tim Chevalier
971b5d5151 Started adding support for return checking and non-returning function annotations 
* Reorganized typestate into several modules.

* Made typestate check that any function with a non-nil return type
  returns a value. For now, the check is a warning and not an error
  (see next item).

* Added a "bot" type (prettyprinted as _|_), for constructs like be, ret, break, cont, and
  fail that don't locally return a value that can be inspected. "bot"
  is distinct from "nil". There is no concrete syntax for _|_, while
  the concrete syntax for the nil type is ().

* Added support to the parser for a ! annotation on functions whose
  result type is _|_. Such a function is required to have either a
  fail or a call to another ! function that is reached in all control
  flow paths. The point of this annotation is to mark functions like
  unimpl() and span_err(), so that an alt with a call to err() in one
  case isn't a false positive for the return-value checker. I haven't
  actually annotated anything with it yet.

* Random bugfixes:

* * Fixed bug in trans::trans_binary that was throwing away the
    cleanups for nested subexpressions of an and or or
    (tests: box-inside-if and box-inside-if2).

** In typeck, unify the expected type arguments of a tag with the
   actual specified arguments.
 2011-05-16 16:59:25 -07:00
Tim Chevalier
c75125fcce Noticed that metadata::Encode::enc_sty didn't have a case for ty_task, so I added one (though this wasn't causing the problem I was seeing... 2011-05-16 16:13:11 -07:00
Patrick Walton
f74298215c rustc: Fix indentation in typeck::check_lit() 2011-05-16 15:24:32 -07:00
Patrick Walton
1fc1ad91ce rustc: Don't rebuild the call expression in typeck::replace_expr_type() 2011-05-16 15:20:11 -07:00
Patrick Walton
278d64dafc rustc: Don't unpack annotations in trans::lval_generic_fn() 2011-05-16 15:20:11 -07:00
Patrick Walton
32b8dcb97c rustc: Factor out the code that interns types into an "interner" data structure 2011-05-16 13:58:13 -07:00
Patrick Walton
3760bfab87 rustc: Don't rebuild AST patterns during typechecking 2011-05-16 11:45:00 -07:00
Patrick Walton
ca51b49c0a rustc: Replace the redundant typeck::node_ann_ty_params() with ty::ann_to_type_params() 2011-05-16 11:43:50 -07:00
Patrick Walton
3aaf02b907 rustc: Make the type collection pass no longer rebuild the AST 2011-05-16 10:34:32 -07:00
Patrick Walton
525a5c582f rustc: Fix indentation in ty_param_count_and_ty_for_def() 2011-05-16 10:32:38 -07:00
Patrick Walton
594c70f788 rustc: Add an item_ann() accessor function 2011-05-16 10:32:38 -07:00
Brian Anderson
f77c5ba512 rustc: Wait until generic glue is actually emitted to define it as internal 
The verifier was not liking this when generating unoptimized bitcode. Per LLVM
docs it is not valid for function declarations to be marked internal, but
their implementations may be.
 2011-05-15 19:53:06 -04:00
Brian Anderson
8eaafdaa2d rustc: Rename 'Unify' modules to 'unify' 2011-05-14 21:13:47 -04:00
Patrick Walton
de421afa55 rustc: Use walk instead of fold for the first item collection pass 2011-05-14 11:03:10 -07:00
Patrick Walton
8b3f359442 rustc: Change "Collect" to "collect" 2011-05-14 11:03:10 -07:00
Patrick Walton
85120d9959 rustc: Look types up in the side table 2011-05-13 18:46:44 -07:00
Patrick Walton
ef75860a0a rustc: Write nil types into the node type table wherever plain_ann() is used 2011-05-13 17:55:07 -07:00
Lindsey Kuper
5679f5c55e 'with' no longer a token; whitespace police. 
Plus renaming the anonymous objects test to a more descriptive name,
and XFAILing it because it doesn't work yet.
 2011-05-13 17:37:01 -07:00
Lindsey Kuper
cd31d5d532 More anon obj work; whitespace police in middle::fold 
Passing args to middle::fold::fold_expr_anon_obj by reference to be
consistent with the other folds; adding a dummy fold_expr_anon_obj to
typeck to be filled in later.
 2011-05-13 17:35:13 -07:00
Lindsey Kuper
814b17352c Use new module namespace syntax. 2011-05-13 17:35:13 -07:00
Lindsey Kuper
b6f35c6a4b More work toward anonymous objects. 2011-05-13 17:35:13 -07:00
Lindsey Kuper
d3242b9644 Bug fixes. 
Fixed infinite loop on anonymous objects in parser; added
expr_anon_obj to walk.rs; fixed syntax of test case.
 2011-05-13 17:35:13 -07:00
Lindsey Kuper
6c1c5b3948 More progress on anonymous objects. 
Still segfaulting on the method-overriding.rs test, though.
 2011-05-13 17:35:13 -07:00
Patrick Walton
fac1342513 rustc: Move replace_expr_type() from ty to typeck, as it's only used in the latter 2011-05-13 17:06:30 -07:00
Brian Anderson
843e9435ab rustc: Fix long lines in typeck.rs 2011-05-13 20:06:02 -04:00
Patrick Walton
23d3b0ec57 rustc: Get ann_to_type_params() on board the ann_to_ty_param_substs_opt_and_ty() train 2011-05-13 16:53:35 -07:00
Patrick Walton
0739849e9f rustc: Make all type lookups go through the one ty::ann_to_ty_param_substs_opt_and_ty() function 2011-05-13 16:40:21 -07:00
Patrick Walton
4f2eb31870 rustc: Write types contained in "trivial annotations" to the table 2011-05-13 16:27:55 -07:00
Patrick Walton
e888fe6f9b rustc: Change ty::triv_ann() to take a node ID instead of a full annotation 2011-05-13 14:39:00 -07:00
Brian Anderson
2f440b1452 rustc: lowercase the link and link::write modules 2011-05-13 16:55:37 -04:00
Graydon Hoare
0d32ff723a Slight adjustments to shape, rename to type_glue.rs. 2011-05-13 13:29:50 -07:00
Patrick Walton
c97b05141a rustc: Add write_type() wherever ann_types are written, except for triv_ann() 2011-05-13 13:06:34 -07:00
Patrick Walton
be9aa1cc5e rustc: Fix the type of node_types; stub the write_type function 2011-05-13 12:12:54 -07:00
Patrick Walton
6e34679a65 rustc: Remove a minor rustboot workaround in typeck::resolve_local_types_in_block() 2011-05-13 11:23:00 -07:00
Patrick Walton
8a8f68aa75 rustc: Make typeck::instantiate_path() not return an annotation 2011-05-13 10:53:55 -07:00
Marijn Haverbeke
ae26b775b4 Implement module namespaces 
Module names no longer clash with type and value names. The
tokenizer/parser still needs to be taught to be more careful in
identifying keywords, so that we can use 'str' and 'vec' and so as
module names.
 2011-05-13 17:20:46 +02:00
Marijn Haverbeke
eb419fd8c7 Extend crate format to allow multiple definitions for a single name 
The type/value namespace distinction pretty much works now. Module
namespace is up next.
 2011-05-13 17:20:39 +02:00
Marijn Haverbeke
1a12a7b04b Make module indices hold a list of items 
This way, they can support having both a type and a value
of the same name.
 2011-05-13 13:34:59 +02:00
Marijn Haverbeke
58ec5d1654 Move capture checking into resolve.rs 
Drops capture.rs. The new algorithm also checks for captures function
arguments and obj fields.
 2011-05-13 12:44:05 +02:00
Marijn Haverbeke
89490e416b Change resolve to use walk instead of fold 
Possibly, at some point, we should add a state-passing variant of
walk, or a wrapper that makes it easier to thread state. (See the
repetetive pop_state_for_* functions in this commit.)
 2011-05-13 11:35:25 +02:00
Marijn Haverbeke
7082bf4478 Ensure visit_ty is called on type parameters during walk 2011-05-13 11:35:25 +02:00
Marijn Haverbeke
39a000714a Add visit_arm and visit_method to walk.rs 
The resolver needs to update its state for individual arms and
methods.
 2011-05-13 11:34:51 +02:00
Patrick Walton
5295a4dabd rustc: Flatten recursive vectors in trans::simplify_type(). Prevents an infinite loop. 2011-05-12 18:37:28 -07:00
Patrick Walton
b163247d4e rustc: Beginnings of a "shape" module to convert types to shapes 2011-05-12 18:30:21 -07:00