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3373 Commits

Author SHA1 Message Date
Lindsey Kuper
5bd65de289 Typo fix in test case. 2011-06-23 10:47:29 -07:00
Tim Chevalier
9a48bd2f21 Compute typestate properly for move 
typestate now drops constraints correctly in the post-state of
a move expression or a declaration whose op is a move. It doesn't
yet drop constraints mentioning variables that get updated.

To do this, I had to change typestate to use trit-vectors instead
of bit-vectors, because for every constraint, there are three
possible values: known-to-be-false (e.g. after x <- y, init(y) is
known-to-be-false), known-to-be-true, and unknown. Before, we
conflated known-to-be-false with unknown. But move requires them
to be treated differently. Consider:

(program a)
(a1) x = 1;
(a2) y <- x;
(a3) log x;

(program b)
(b1) x = 1;
(b2) y <- z;
(b3) log x;

With only two values, the postcondition of statement a2 for
constraint init(x) is the same as that of b2: 0. But in (a2)'s
postcondition, init(x) *must* be false, but in (b2)'s condition,
it's just whatever it was in the postcondition of the preceding statement.
 2011-06-22 22:13:42 -07:00
Brian Anderson
7105cd1761 test: Add test for string matching in pattern alts. Closes #53 2011-06-22 22:05:11 -07:00
Brian Anderson
54566e9037 rustc: Convert field access on invalid types from an ICE to a fatal error 
Closes #367
 2011-06-22 21:31:32 -07:00
Lindsey Kuper
d9f452a2a8 Some work on supporting forwarding slots in vtables (issue #539). 2011-06-22 21:07:20 -07:00
Brian Anderson
523a088451 rustc: Use the rhs span when unifying binops 
This makes the error message correctly identify the term that wasn't the
expected type. Issue #516.
 2011-06-22 20:50:53 -07:00
Brian Anderson
ae234d61ea rustc: Remove some unneeded type annotations 2011-06-22 20:45:02 -07:00
Brian Anderson
d2b7ea877c rustc: Don't commit unification changes until unify succeeds 
This is so that subsequent reports about type mismatches get the types
correct.

Issue #516
 2011-06-22 20:43:50 -07:00
Brian Anderson
d9b56ec2ea rustc: Limit creader exports 2011-06-22 19:04:04 -07:00
Brian Anderson
ab98f16373 rustc: Downcase metadata::Encode 2011-06-22 18:09:53 -07:00
Brian Anderson
8746b84eec rustc: Handle valueless ret expressions as block results. Closes #521 2011-06-22 17:20:01 -07:00
Paul Stansifer
b4c3b83f26 Fix bug: globbed imports were importing everything visible from the other 
module, not just everything exported.
 2011-06-22 15:41:39 -07:00
Brian Anderson
adc18bb24a rustc: Introduce and parse additional meta_item forms 
Examples: #[test], #[link(name = "vers")]

Issue #487
 2011-06-22 13:55:58 -07:00
Rafael Ávila de Espíndola
64513808ca Use fast regalloc and codegen at OptLevel=0. 2011-06-22 16:50:30 -04:00
Brian Anderson
a6e188f8bf rustc: Rename parser.err to parser.fatal 2011-06-22 12:55:26 -07:00
Paul Stansifer
fe0925678c Remove a simidgeon of dead code. 2011-06-23 03:32:57 +08:00
Brian Anderson
cc2a514cdc test: Enable more tests 2011-06-22 08:35:02 -07:00
Michael Sullivan
7a4fb084f1 Pull environment loading out into a function. 2011-06-22 07:03:16 -07:00
Michael Sullivan
6b40cedcb1 Pull building the environment for for_each into a seperate function. 2011-06-22 07:03:16 -07:00
Michael Sullivan
c07443e6eb Removing out-of-date comment. 2011-06-22 07:03:15 -07:00
Tim Chevalier
1a6d029b07 Emit a better error message for unbound type parameters in nested functions 
This code was causing a bounds check failure:

fn hd[U](&vec[U] v) -> U {
  fn hd1(&vec[U] w) -> U {
    ret w.(0);
  }
  ret hd1(v);
}

because in hd1, U was being treated as if it referred to a type
parameter of hd1, rather than referring to the lexically enclosing binding
for U that's part of hd.

I'm actually not sure whether this is a legit program or not. But I wanted
to get rid of the bounds check error, so I assumed that program shouldn't
compile and made it a proper error message.
 2011-06-21 17:58:49 -07:00
Lindsey Kuper
efd8ff4647 Comments for all the anon obj tests. 2011-06-21 16:35:21 -07:00
Tim Chevalier
7fb35ecf84 Serialize constraints in types (literal arguments still not supported) 
This involved, in part, changing the ast::def type so that a def_fn
has a "purity" field. This lets the typechecker determine whether
functions defined in other crates are pure.

It also required updating some error messages in tests. As a test
for cross-crate constrained functions, I added a safe_slice function
to std::str (slice(), with one of the asserts replaced with a
function precondition) and some test cases (various versions of
fn-constraint.rs) that call it. Also, I changed "fn" to "pred" for
some of the boolean functions in std::uint.
 2011-06-21 14:37:33 -07:00
Marijn Haverbeke
3b6d94d489 Move names and ids of native items into their recs, rather than their tags 2011-06-21 23:11:00 +02:00
Lindsey Kuper
26d8eaefa7 Puts out burning tinderbox (oops, AST nodes don't have def_ids/anns). 2011-06-21 14:07:28 -07:00
Lindsey Kuper
84005fadbf Some progress on support for extending objects with new fields (issue 
into four separate issues (#538, #539, #540, #543) with corresponding
tests.
 2011-06-21 13:31:27 -07:00
Lindsey Kuper
718ee98f43 More descriptive identifiers. 2011-06-21 13:31:27 -07:00
Marijn Haverbeke
c34e9b33d9 Move expr ids into the expr record type 
This simplifies the tag variants a bit and makes expr_node_id
obsolete.
 2011-06-21 22:25:32 +02:00
Brian Anderson
34040be580 test: Add a test for distinguishing attributes from extensions 
Issue #487
 2011-06-21 11:50:55 -07:00
Patrick Walton
c109c9dd73 rustc: Output an unimplemented message when alias encounters an unknown sequence type 2011-06-21 11:10:14 -04:00
Patrick Walton
062c6b946b rustc: Implement "for" over interior vectors 2011-06-21 11:10:14 -04:00
Brian Anderson
23d6a6bde1 rustc: Remove unused slice call from extfmt. Closes #532 2011-06-21 07:49:40 -07:00
Rafael Ávila de Espíndola
28d1626221 Remove the old library names. These were unused since rustboot. 
Right now rustc hardcodes -lrustllvm. The idea is to instead remember all the native
modules used and convert them to -l directives to the linker. In the case of a
library that is installed in an unusual location, Graydon suggested using metadata:

native module foo = "bar" {
}
 2011-06-20 18:09:24 -04:00
Rafael Ávila de Espíndola
2ad0954941 Merge remote branch 'upstream/master' 2011-06-20 17:58:37 -04:00
Rafael Ávila de Espíndola
a355505a5f Fix line length. 2011-06-20 17:57:29 -04:00
Marijn Haverbeke
56eb986584 Fix some uses of span_warn in alias.rs that should be span_fatal 2011-06-20 23:53:29 +02:00
Marijn Haverbeke
588dc3897b Make trans use the new ast_map instead of building its own 2011-06-20 23:53:28 +02:00
Marijn Haverbeke
854b3a9b73 Use ast_map in typeck, instead of building another index 2011-06-20 23:53:28 +02:00
Marijn Haverbeke
40db3aa6fb Add a separate AST mapping phase 
This will replace the various node_id-to-node mappings done in several
other passes. This commit already uses the new map in resolve, dropping
the ast_map that was built there before.
 2011-06-20 23:53:28 +02:00
Marijn Haverbeke
77af54bf6f Reduce confusing variable naming in resolve 
'id' is now used for node_ids, 'name' for idents
 2011-06-20 23:53:28 +02:00
Marijn Haverbeke
75681f9ad7 Get rid of def_ids and anns in AST nodes, use single node_id 
This reduces some redundancy in the AST data structures and cruft in
the code that works with them. To get a def_id from a node_id, apply
ast::local_def, which adds the local crate_num to the given node_id.
Most code only deals with crate-local node_ids, and won't have to
create def_ids at all.
 2011-06-20 23:53:28 +02:00
Rafael Ávila de Espíndola
3d8a5cb9e6 Remember the library files we used in rustc and pass them to the "linker". 
This avoid the hardcoded -lstd, allows programs to use other crates and avoids
any differences that may exist in the rustc and ld search logic.
 2011-06-20 17:44:12 -04:00
Eric Holk
a2dcd08cc2 Added string duplication to deep_copy. Closes #520. 2011-06-20 13:47:02 -07:00
Graydon Hoare
c051501784 Tighten up the hardbreak rules a bit. 2011-06-20 19:58:23 +00:00
Graydon Hoare
8cd0695230 Suppress hardbreaks when following hardbreaks. 2011-06-20 19:58:23 +00:00
Graydon Hoare
035d60d533 Fix interference between if-check and if printing. 2011-06-20 19:58:23 +00:00
Eric Holk
992153672b Removed duplicated ret_ty_of_fn. This also means the native function branch is working now, so this commit closes #506. 2011-06-20 12:04:33 -07:00
Eric Holk
ce50ae3212 Added a test case for #506 2011-06-20 12:04:33 -07:00
Eric Holk
5640bead58 Teach ret_ty_of_fn_ty to understand native functions. Closes #506. 2011-06-20 12:04:33 -07:00
Rafael Ávila de Espíndola
283744ba78 Remove flags that are not used during linking. 2011-06-20 15:00:07 -04:00
Graydon Hoare
97cf57adc1 Fix pp blank-lines insertion at beginning of file and before 'let' decls. 2011-06-20 10:45:33 -04:00
Brian Anderson
200dbe4c4f Remove various rustboot workarounds 2011-06-19 20:48:20 -07:00
Graydon Hoare
9b6ae59b22 Fix pp blank-line insertion after isolated comments in cboxes. 2011-06-19 22:55:58 -04:00
Patrick Walton
3f7380ccec rustc: Change smallintmap to use an ivec and use it for the node type table. 3x typechecking speedup. 2011-06-19 18:03:19 -07:00
Patrick Walton
8cdef277b2 rt: Fix size miscalculation in ivec_reserve 2011-06-19 18:03:19 -07:00
Brian Anderson
6cf9b17086 rustc: Make name resolution errors less fatal 
Failure happens at the end of name resolution

Issue #440
 2011-06-19 15:23:11 -07:00
Brian Anderson
c5238d57eb rustc: Make import resolution errors less fatal 
Failure happens at the end of import resolution

Issue #440
 2011-06-19 14:35:50 -07:00
Brian Anderson
76a752e7a4 rustc: Export only what's needed from middle::ty 
The list is formidable.
 2011-06-19 12:27:43 -07:00
Brian Anderson
80a8af7b47 rustc: Export only what's used from middle::resolve 2011-06-19 12:27:43 -07:00
Brian Anderson
942fcbe7a1 rustc: Re-introduce session.span_err, session.err 
These errors are non-fatal. The session.abort_if_errors function needs to be
called at strategic points to convert the previous errors to utter failure.

Issue #440
 2011-06-19 12:19:53 -07:00
Brian Anderson
43427dae0c rustc: Rename session.span_err -> span_fatal, err -> fatal 
Issue #440
 2011-06-19 12:19:53 -07:00
Brian Anderson
cf9ed08a50 Revert previous 6 commits. Hopefully put out Windows fire. 
Revert "rustc: Export only what's needed from middle::ty"

This reverts commit 4255d58aa5.

Revert "rustc: Make name resolution errors less fatal"

This reverts commit b8ab9ea89c.

Revert "rustc: Make import resolution errors less fatal"

This reverts commit 92a8ae94b9.

Revert "rustc: Export only what's used from middle::resolve"

This reverts commit 4539a2cf7a.

Revert "rustc: Re-introduce session.span_err, session.err"

This reverts commit 7fe9a88e31.

Revert "rustc: Rename session.span_err -> span_fatal, err -> fatal"

This reverts commit c394a7f49a.
 2011-06-19 03:29:19 -07:00
Brian Anderson
4255d58aa5 rustc: Export only what's needed from middle::ty 
The list is formidable.
 2011-06-19 02:42:05 -07:00
Brian Anderson
b8ab9ea89c rustc: Make name resolution errors less fatal 
Failure happens at the end of name resolution

Issue #440
 2011-06-19 02:42:05 -07:00
Brian Anderson
92a8ae94b9 rustc: Make import resolution errors less fatal 
Failure happens at the end of import resolution

Issue #440
 2011-06-19 02:42:01 -07:00
Brian Anderson
4539a2cf7a rustc: Export only what's used from middle::resolve 2011-06-19 02:41:03 -07:00
Brian Anderson
7fe9a88e31 rustc: Re-introduce session.span_err, session.err 
These errors are non-fatal. The session.abort_if_errors function needs to be
called at strategic points to convert the previous errors to utter failure.

Issue #440
 2011-06-19 02:41:02 -07:00
Brian Anderson
c394a7f49a rustc: Rename session.span_err -> span_fatal, err -> fatal 
Issue #440
 2011-06-19 02:40:59 -07:00
Brian Anderson
514813148b rustc: Store the lhs and rhs of receive exprs in left to right order 
With the changing of receive semantics the parser has been putting the rhs
expression in the first argument of expr_recv and the lhs in the second, and
all subsequent passes have been referring to them backwords (but still doing
the right thing because they were assuming that lhs was the port and rhs was
the receiver).

This makes all code agree on what lhs and rhs mean for receive expressions.
 2011-06-18 20:23:05 -07:00
Brian Anderson
364cd5763c rustc: receive is spelled |> now 2011-06-18 20:23:05 -07:00
Brian Anderson
3852f1eee3 Typecheck block tail expressions that are fn return values 2011-06-18 20:23:05 -07:00
Brian Anderson
ddbb31eb8e rustc: Remove the meta keyword 
Issue #487
 2011-06-18 20:23:05 -07:00
Brian Anderson
f58de2d687 Replace unexported meta tags with attributes 
Issue #487
 2011-06-18 20:23:05 -07:00
Brian Anderson
60023047a4 rustc: Replace 'export meta' with attributes 
Issue #487
 2011-06-18 20:23:05 -07:00
Graydon Hoare
814beaafdf Add -lssp on windows in attempt to put out tinderbox; no idea why ssp seems required on mingw. 2011-06-18 22:07:02 -04:00
Patrick Walton
7bb6733f2c test: Add a test case for derived-tydescs-before-dynamic-allocas 2011-06-18 18:44:21 -07:00
Patrick Walton
4f13879218 rustc: Allocate derived tydescs before dynamically sized allocas 2011-06-18 18:43:07 -07:00
Patrick Walton
877f001512 rustc: Don't bother to supply an alignment argument to the memmove intrinsic; LLVM is very fussy about what it considers a constant. 2011-06-18 16:59:44 -07:00
Patrick Walton
ca2ff9c50d stdlib: Add ivec::grow_set() 2011-06-18 16:41:09 -07:00
Patrick Walton
5d90b1df4b stdlib: Add ivec::grow() and ivec::grow_fn() 2011-06-18 16:29:45 -07:00
Patrick Walton
ef65542b1d test: Add test cases for ivec::init_elt, ivec::last, and ivec::slice 2011-06-18 16:05:44 -07:00
Patrick Walton
2ba7729ae7 rustc: Cache results of type_has_pointers. 70% translation speedup. 2011-06-18 00:41:25 -07:00
Patrick Walton
b2bcafe6fd stdlib: Add some more ivec functions, untested as of yet 2011-06-17 19:16:26 -07:00
Patrick Walton
5894e400b6 rustc: Add missing case for interior vectors in alias.rs 2011-06-17 19:16:26 -07:00
Tim Chevalier
7fc89f573d Restructure the "checking" pass in typestate 
I noticed that typestate was being lazier than it should be,
because it was only checking typestate for statements and
top-level expression (that is, the expression in a stmt_expr, but
not any subexpressions). So I rewrote the checks in tstate/ck.rs
to use walk, which exposed a few bugs in typestate that I fixed.

Also added some more test cases for if-check.
 2011-06-17 19:09:18 -07:00
Patrick Walton
a4eb6630f3 rustc: Increment by the dynamically-computed size in ivec::trans_append. Uncomment init_fn test in lib-ivec. 2011-06-17 19:01:14 -07:00
Brian Anderson
77189f834c rustc: Use correct version key in metadata 2011-06-17 18:33:07 -07:00
Brian Anderson
bd93e1abcd Register new snapshots. Update location of stage0's libstd 2011-06-17 18:19:37 -07:00
Patrick Walton
e0afcb400b test: Comment out the init-fn line in lib-ivec. Puts out burning tinderbox. 2011-06-17 17:53:43 -07:00
Patrick Walton
5fb9325848 rustc: Fix a bunch of memory management bugs relating to generic interior vectors. Uncomment all tests in lib-ivec. 2011-06-17 17:31:24 -07:00
Patrick Walton
68122edac3 Revert "rustc: Fix a bunch of memory management bugs relating to generic interior vectors" 
This reverts commit 2b5e40311d.
 2011-06-17 16:38:47 -07:00
Patrick Walton
2b5e40311d rustc: Fix a bunch of memory management bugs relating to generic interior vectors 2011-06-17 16:23:06 -07:00
unknown
8c6354ceb9 Made sure getcwd and friends work well on Windows. 2011-06-17 15:53:21 -07:00
Eric Holk
7c57b8baf5 Updating rustrt.def.in so that the path manipulation functions work on OS X. 2011-06-17 15:53:20 -07:00
Eric Holk
9adacfb26a Adding a test case for getcwd and related functions. 2011-06-17 15:53:20 -07:00
Eric Holk
a40116b398 stdlib: added getcwd and a convenience function to make relative paths absolute. This will be helpful for #441. 2011-06-17 15:53:19 -07:00
Brian Anderson
175fd8ee73 Update snapshot scripts to understand new dir layout 2011-06-17 15:39:58 -07:00
Eric Holk
2c1b269960 Implemented enough of deep_copy that we can pass scalars and channels to tasks. Closes #507. 2011-06-17 15:17:46 -07:00
Eric Holk
81fc51a8d7 Started using deep_copy for spawn arguments. 2011-06-17 15:17:46 -07:00
Eric Holk
71e1db596c Added a test case for #507 2011-06-17 15:17:46 -07:00
Brian Anderson
6e6bc5076c rustc: Support both meta tags and attributes for crate metadata 
This is a transitional patch for converting from 'meta' to attributes.

Issue #487
 2011-06-17 15:07:34 -07:00
Brian Anderson
81a187e8be rustc: Remove metadata from the session. 
This mechanism was not being used for anything. Issue #487.
 2011-06-17 14:46:59 -07:00
Rafael Ávila de Espíndola
342dbd7abe Put std in stageN/lib. This avoids windows trying to load stageN/std.ll when 
stageN/runstc.exe is run.
 2011-06-17 15:34:59 -04:00
Patrick Walton
e43a3755dd rustc: Add a type_owns_heap_mem() predicate 2011-06-17 12:32:18 -07:00
Patrick Walton
dfb806b367 rustc: Cast to opaque interior vector types in trans_vec_append if necessary. Puts out burning tinderbox. 2011-06-17 12:23:04 -07:00
Patrick Walton
4918c99f69 rustc: Copy the contents of generic interior vectors 2011-06-17 12:22:53 -07:00
Patrick Walton
4bb7597542 Revert "rustc: Copy the contents of generic interior vectors" 
This reverts commit 5bdbe1dfc2.
 2011-06-17 12:03:21 -07:00
Patrick Walton
5bdbe1dfc2 rustc: Copy the contents of generic interior vectors 2011-06-17 11:45:51 -07:00
Brian Anderson
e8228e1260 rustc: Demand that if conditions have bool type 
Closes #513
 2011-06-17 11:35:00 -07:00
Brian Anderson
a4d88dacc9 rustc: Fail to unify if two ty_vars don't unify 
Closes #500
 2011-06-17 11:35:00 -07:00
Brian Anderson
2a69db5b76 test: Fix mismatched types in prep for typechecker fixes 
Issue #500
 2011-06-17 11:35:00 -07:00
Brian Anderson
753da64fd6 rustc: Demand unification of both sides of a binop 
Issue #500
 2011-06-17 11:35:00 -07:00
Rafael Ávila de Espíndola
1dbc0442cd Automatically add a -L to the directory the binary is in. 2011-06-17 13:36:08 -04:00
Patrick Walton
982f51aa95 stdlib: Fix reserve on zero-length interior vectors; uncomment test_unsafe_ptrs() 2011-06-16 18:01:57 -07:00
Paul Stansifer
391348ec86 Consistify ast::local. 2011-06-16 17:56:24 -07:00
Patrick Walton
d47101703e stdlib: Sketch out ivec::init_fn, currently segfaulting 2011-06-16 17:48:59 -07:00
Patrick Walton
ab7ebb608a rustc: Fix dominance issue when translating generic interior vectors 2011-06-16 17:48:32 -07:00
Brian Anderson
a68a5c9b5e Disable lib-ivec's test_unsafe_ptrs. Not working here 2011-06-16 17:34:39 -07:00
Brian Anderson
6f4326c54d Add better error messages for bad attributes in .rc files 
Issue #487
 2011-06-16 17:23:20 -07:00
Brian Anderson
4b8fba5f34 rustc: Fix regressed handling of bad attributes 
Issue #487
 2011-06-16 17:23:20 -07:00
Brian Anderson
ffa7c76ed2 rustc: Change print_file to print_crate 
The pretty-printer needs access to the crate attributes in order to reproduce
inner crate attributes in standalone .rs files

Issue #487
 2011-06-16 17:23:20 -07:00
Brian Anderson
e83a115d79 rustc: Parse crate attributes in standalone .rs files 
Issue #487
 2011-06-16 17:23:20 -07:00
Brian Anderson
ffae642663 rustc: Parse attributes in crate files 
Issue #487
 2011-06-16 17:23:20 -07:00
Brian Anderson
62939e41b2 rustc: Parse inner items of file-level modules linked from crate files 
Issue #487
 2011-06-16 17:23:20 -07:00
Patrick Walton
40746fa447 rustc: Implement conversions from interior vector data to unsafe pointers and vice-versa 2011-06-16 17:07:02 -07:00
Patrick Walton
e50c918e6b rustc: Implement type walking and comparison glue for unsafe pointers 2011-06-16 17:07:02 -07:00
Graydon Hoare
b84fffaa4e Reformat a bunch of recent churn. 2011-06-16 16:55:46 -07:00
Graydon Hoare
eb9969f546 Add support for marking files no-reformat. 2011-06-16 16:42:29 -07:00
Patrick Walton
050f62983d stdlib: Introduce an ivec module into the standard library; add a minimal test case 2011-06-16 16:08:26 -07:00
Patrick Walton
94cd2985b2 rustc: Parse T[mutable?] 2011-06-16 15:17:06 -07:00
Patrick Walton
d90ad442b4 rustc: Work around leak when translating interior vectors. Un-XFAIL interior-vec.rs. 2011-06-16 15:07:21 -07:00
Patrick Walton
5b341443da test: Add an interior-vec test case, XFAIL'd for now because of leaks in the compiler 2011-06-16 14:30:10 -07:00
Patrick Walton
e7575b9f3a rustc: Add cases for istr and ivec to visit 2011-06-16 14:26:11 -07:00
Brian Anderson
99301ff830 test: Add a test for outer attributes on the first module in a file 
Issue #487
 2011-06-16 14:21:43 -07:00
Brian Anderson
b727d079ed rustc: Pretty print module inner attributes 
Issue #487
 2011-06-16 14:21:43 -07:00
Brian Anderson
43cbbabccb rustc: Correctly mark attributes as inner attributes 
Issue #487
 2011-06-16 14:21:43 -07:00
Brian Anderson
f3996d32b0 rustc: Parse inner attributes of modules 
Issue #487
 2011-06-16 14:21:42 -07:00
Brian Anderson
0efd7fac8a stdlib: Add option::is_some 2011-06-16 14:21:42 -07:00
Tim Chevalier
49a4867da6 Pretty-print if-check 2011-06-16 14:08:48 -07:00
Patrick Walton
4fc286e24e rustc: Parse interior vector types in which the base type is a path properly 2011-06-16 14:03:07 -07:00
Patrick Walton
9210afc8a5 rustc: Pretty print interior vector types 2011-06-16 14:03:07 -07:00
Eric Holk
6ed6791df4 Removing dead upcall_join. Closes #509. 2011-06-16 12:23:13 -07:00
Lindsey Kuper
a5563e173e Clean up whitespace oddities perpetrated by pretty-printer. 2011-06-16 12:21:49 -07:00
Lindsey Kuper
efc55b2a3d Simple anonymous objects compile with stage0. 2011-06-16 12:21:49 -07:00
Tim Chevalier
219924e669 Bring back if-check 
Add "if check" (expr_if_check), a variation on check that executes
an "else" clause rather than failing if the check doesn't hold.
 2011-06-16 12:13:20 -07:00
Tim Chevalier
94ae4590c5 if-check test case 2011-06-16 12:13:20 -07:00
Michael Sullivan
bd8f6097a7 Get rid of old vec_append glue. 2011-06-16 11:58:29 -07:00
Michael Sullivan
a9d62e5a90 Write some tests for swap. 2011-06-16 11:47:54 -07:00
Michael Sullivan
272c7e2e87 Translate the swap operator. 2011-06-16 11:47:54 -07:00
Michael Sullivan
bc33a5fe50 Fix bug in move on structure types. 2011-06-16 11:47:54 -07:00
Michael Sullivan
cfd1f74ebb Bring swap through typechecking and typestate. 2011-06-16 11:47:54 -07:00
Michael Sullivan
066599104a Parse swap. 2011-06-16 11:47:54 -07:00
Michael Sullivan
e8d2d27a88 Add "<->" to the token definition and the lexer. 2011-06-16 11:47:54 -07:00
Patrick Walton
02c0501a61 rt: memory_region::free(NULL) shouldn't touch the live allocation count 2011-06-16 11:16:03 -07:00
Patrick Walton
4673eb6839 rustc: Fix LLVM type error when generating cmp glue for interior vectors 2011-06-16 11:16:03 -07:00
Rafael Ávila de Espíndola
741e77174c Merge remote branch 'upstream/master' 2011-06-16 14:09:15 -04:00
Rafael Ávila de Espíndola
c51ac6730f Update the snapshots. 2011-06-16 13:49:57 -04:00
Patrick Walton
f9da8b2676 rt: Add an ivec length intrinsic and an ivec reserve function, both untested as of yet 2011-06-16 10:32:52 -07:00
Patrick Walton
66c52036da rustc: Change interior vector syntax to T[] 2011-06-16 10:13:39 -07:00
Marijn Haverbeke
15f71b3600 Refactor ast::item representation 
Most of the fields in an AST item were present in all variants. Things
could be simplified considerably by putting them in the rec rather
than in the variant tags.
 2011-06-16 13:32:35 +02:00
Brian Anderson
6c2f322f82 Improve and test failure behavior for malformed attributes 2011-06-15 19:30:10 -07:00
Eric Holk
67360ae618 Fixed a problem where spawn arguments were getting lost again. Also, fixed up stack alignment, which closes #496 2011-06-15 18:16:59 -07:00
Eric Holk
c4f9bd9470 Re-enabled join. 2011-06-15 18:16:59 -07:00
Patrick Walton
1fa9133b76 rustc: Implement interior vector concatenation 2011-06-15 18:03:25 -07:00
Eric Holk
260aa408f3 Merge branch 'master' of github.com:graydon/rust into fastcall 2011-06-15 17:45:24 -07:00
Eric Holk
405c164f02 Updating snapshots.txt. Closes #495. 2011-06-15 17:45:02 -07:00
Michael Sullivan
a91d301b31 Add xterm to the term lib's list of supported terms. 2011-06-15 17:33:37 -07:00
Brian Anderson
94d971c0e8 rustc: Remove unused variable from check_assignment 2011-06-15 16:48:59 -07:00
Brian Anderson
f50fd6d8ae stdlib: Add color support for GNU screen 2011-06-15 16:38:17 -07:00
Brian Anderson
c19a026f46 stdlib: Add emacs variables to term.rs 2011-06-15 16:28:14 -07:00
Eric Holk
02018fed42 Step 3 of cdecl conversion. 2011-06-15 16:04:39 -07:00
Brian Anderson
14c5900a70 test: Add a compile-fail test for attribute/syntax parsing 
I don't currently know how to deal with syntax extensions that appear betweeen
an attribute and an item, so this test captures the error that occurs.

Issue #487
 2011-06-15 16:01:39 -07:00
Brian Anderson
2772a29e92 rustc: Support outer attributes on items that are defined as statements 
Issue #487
 2011-06-15 16:01:35 -07:00
Eric Holk
89ba649c3a Updating snapshots.txt 2011-06-15 15:57:15 -07:00
Brian Anderson
b8a5440b2d stdlib: Add an either module 
Like Haskell's, with left and right tags, various conversion functions
 2011-06-15 15:45:41 -07:00
Brian Anderson
95bdedf12d test: Add missing fn test cases to run-pass/item-attributes.rs 
Issue #487
 2011-06-15 15:45:41 -07:00
Tim Chevalier
a5bca7df88 Refactor data structures representing constraints (again...) 
I added a "resolved" version of the ast::constr type -- ty::constr_def
-- that has a def_id field instead of an ann_field. This is more
consistent with other types and eliminates some checking.

Incidentally, I removed the def_map argument to the top-level function
in middle::alias, since the ty::ctxt already has a def_map field.
 2011-06-15 15:38:12 -07:00
Patrick Walton
52d4f48144 rustc: Move ivec stuff to an ivec module in trans 2011-06-15 14:43:00 -07:00
Eric Holk
92bd35075b Step 2 of cdecl task transition. 2011-06-15 14:25:53 -07:00
Eric Holk
6a3f4abc6f Updating snapshots.txt 2011-06-15 14:19:40 -07:00
Patrick Walton
6c8e94f397 rustc: Change the default interior vector length to 4 per science 2011-06-15 14:14:33 -07:00
Rafael Ávila de Espíndola
a77180f4f5 Add support for producing shared libraries directly in the rust driver. 2011-06-15 16:54:13 -04:00
Marijn Haverbeke
9b5ebe726c Implement checking of alias safety in tail calls. 2011-06-15 21:39:27 +02:00
Marijn Haverbeke
b2b8002fd3 Fix unsafe uses of aliases in tail calls 2011-06-15 21:39:27 +02:00
Marijn Haverbeke
0987b17dcb Small simplification in parser.rs' crate parsing 2011-06-15 21:39:26 +02:00
Lindsey Kuper
1ad69291bc Added issue # to FIXME. 2011-06-15 12:29:34 -07:00
Lindsey Kuper
fa5a7e7453 Simple anonymous objects get through translation. 2011-06-15 12:18:52 -07:00
Lindsey Kuper
59a254ae32 Just some typo fixes. 2011-06-15 12:18:52 -07:00
Eric Holk
01ea27b205 Step 1 of moving task startup to always be cdecl. 2011-06-15 12:10:15 -07:00
Graydon Hoare
766d54df93 Fix a bunch of compile-command lines to use RBUILD 2011-06-15 12:01:19 -07:00
Graydon Hoare
7e806c5e87 Attempt to put out windows tinderbox. 2011-06-15 11:39:31 -07:00
Graydon Hoare
ce72993488 Reformat source tree (minus a couple tests that are still grumpy). 2011-06-15 11:19:50 -07:00
Graydon Hoare
8d381823e2 Print mutability of obj fields. 2011-06-15 10:25:23 -07:00
Graydon Hoare
f03107b58c Fix pp bug on native modules. 2011-06-15 10:09:28 -07:00
Brian Anderson
df6ec4f8ea rustc: Pretty-print outer attributes of items 
Issue #487
 2011-06-15 09:48:59 -07:00
Brian Anderson
6c6d7c3916 test: Add tests for multiple outer attributes on items 
Issue #487
 2011-06-15 09:48:59 -07:00
Brian Anderson
1c9277e0d3 rustc: Make room in remaining AST item nodes for attributes 
Issue #487
 2011-06-15 09:48:55 -07:00
Brian Anderson
697fdaac24 test: Add test cases for outer attributes on all item types 2011-06-15 09:46:38 -07:00
Brian Anderson
11c5c73d56 rustc: Introduce an attribute type to the AST 
Right now the only thing that it adds to meta_item is an indication of whether
the attribute was declared inside or outside the item, but I expect it will
become more useful.

Issue #487
 2011-06-15 09:46:37 -07:00
Brian Anderson
0eefa5f9d3 rustc: Parse module attributes 
Issue #487
 2011-06-15 09:46:37 -07:00
Brian Anderson
31116dcdd5 rustc: Make room in item_mod for metadata 
Issue #487
 2011-06-15 09:46:37 -07:00
Brian Anderson
f42977d946 rustc: Modernize front::eval 2011-06-15 09:46:37 -07:00
Marijn Haverbeke
c7ab88cc35 Implement checking against assignments to immutable obj fields 2011-06-15 14:59:51 +02:00
Marijn Haverbeke
b0d46efd07 Stop dropping object field mutability on the floor 2011-06-15 14:20:04 +02:00
Marijn Haverbeke
0ddade3d7a Extend alias analysis to check assignments 
This is a somewhat odd place to put these checks, but the data tracked
by that pass, and the available functions, make it trivial to do such
a check there.
 2011-06-15 14:10:07 +02:00
Marijn Haverbeke
5fb518abc9 Fix assignments to immutable fields throughout the code 2011-06-15 14:10:07 +02:00
Marijn Haverbeke
180db08470 Refactor expr_root in alias.rs 
It was too clunky and specific before. Now returns a vec of dereference specs
instead of a bunch of special-case information. Further accessors extract
the information they need from this vec.
 2011-06-15 11:03:23 +02:00
Patrick Walton
ac743cfcb0 Merge pull request #490 from msullivan/fix_vec_append 
Move the implementation of vec_append from llvm assembly to a regular upcall
 2011-06-14 18:32:04 -07:00
Patrick Walton
c6be352f73 rustc: Implement on-heap resizing for interior vectors 2011-06-14 18:23:13 -07:00
Graydon Hoare
b7f043eeb7 Add new testcase to show the nature of our exciting block-expr / trailing unop interaction. 2011-06-14 17:07:48 -07:00
Rafael Ávila de Espíndola
ec9c4fdde7 Merge remote branch 'upstream/master' 2011-06-14 19:29:30 -04:00
Rafael Ávila de Espíndola
e6f87a7525 Use new snapshot. 2011-06-14 19:28:39 -04:00
Michael Sullivan
ccd1bcf7a7 Make tydesc glue functions use cdecl. 2011-06-14 16:09:21 -07:00
Michael Sullivan
5378f48a03 Remove vec_append_glue from the compiler. 2011-06-14 16:09:17 -07:00
Patrick Walton
14258b87a7 rustc: Free heapified interior vectors 2011-06-14 16:00:30 -07:00
Patrick Walton
bd18860be7 rustc: Fix LLVM type error that occurred when translating large unique vector literals 2011-06-14 16:00:02 -07:00
Michael Sullivan
95def699f1 Implement upcall_vec_append and use it for vector append. 2011-06-14 15:35:09 -07:00
Michael Sullivan
491d110645 Make type_desc fields have useful types and better names. Add in cmp_glue. 2011-06-14 15:35:08 -07:00
Tim Chevalier
36755e42df Remove some unnecessary xfails 2011-06-14 15:11:48 -07:00
Tim Chevalier
05b7eb6dff Make the typechecker check that dynamically sized arguments are passed by alias 
Before, this would cause an assertion failure in trans.
 2011-06-14 15:11:48 -07:00
Rafael Ávila de Espíndola
c3015b8952 Apply the makefile changes again, this time fixin the driver to not produce a 
rustc.exe.exe.
 2011-06-14 17:51:31 -04:00
Tim Chevalier
1cc7165e62 Un-xfail test/run-fail/pred.rs 2011-06-14 14:17:28 -07:00
Tim Chevalier
1513539b67 Improve error message for a failed assert or check 2011-06-14 14:17:28 -07:00
Patrick Walton
bf5840d530 rustc: Do a dynamic alloca for generic interior vectors; fix data pointer calculation when spilling vectors 2011-06-14 14:03:38 -07:00
Tim Chevalier
206429e075 Un-xfail working test cases 2011-06-14 13:58:10 -07:00
Marijn Haverbeke
df27699a57 Modernize some code in parser.rs 
No more explicit type params or working around rustboot bugs
 2011-06-14 22:09:00 +02:00
Marijn Haverbeke
f24408d89a Don't error when trans_lval is called on a non-lval 
This allows directly calling a function expression, or the
result of an alt/if/block expression.
 2011-06-14 21:38:56 +02:00
Tim Chevalier
6142c731a0 Un-xfail some tests that work 2011-06-14 12:27:23 -07:00
Tim Chevalier
7532681612 Add xfail-stage0 to some tests (not sure if it matters...) 2011-06-14 12:27:23 -07:00
Graydon Hoare
9ae843ab1c Print parens on unops when necessary. 'make reformat' output now builds to stage3. 2011-06-14 11:32:20 -07:00
Graydon Hoare
a1edf91f48 Fix bug in detecting trailing comments when at beginning-of-file. 2011-06-14 11:11:22 -07:00
Marijn Haverbeke
fa2b4d3a8d Remove a bunch of primitive-compiler-workarounds from pprust.rs 2011-06-14 18:23:27 +02:00
Marijn Haverbeke
471436a299 Implement function expressions/anonymous functions 
Looks like 'fn(..arg..) -> ret {body;}. They don't support type
parameters or upvars yet.
 2011-06-14 18:22:46 +02:00
Marijn Haverbeke
8c06d1bcb0 Remove 'peeking_at_item' from parser 
parse_item now returns a value to indicate it didn't find an item
 2011-06-14 14:53:01 +02:00
Patrick Walton
355c417267 rustc: Add some interior vector spill code, untested as of yet 2011-06-13 19:27:04 -07:00
Patrick Walton
c3bf7d07e9 rustc: Implement simple interior vector append translation 2011-06-13 18:57:25 -07:00
Tim Chevalier
a1bb4a4ded Refactor some typestate-related data structures 2011-06-13 18:21:22 -07:00
Eric Holk
d1857d30fc This is the mega-ucontext commit. It replaces the task switching mechanism with a new one inspired by ucontext. It works under Linux, OS X and Windows, and is Valgrind clean on Linux and OS X (provided the runtime is built with gcc). 
This commit also moves yield and join to the standard library, as requested in #42. Join is currently a no-op though.
 2011-06-13 18:14:13 -07:00
Brian Anderson
1595c9d767 rustc: Assignment expressions have nil type. Closes #483 2011-06-13 17:57:43 -07:00
Tim Chevalier
d65ad8c31c Change decl to local in expr_for and expr_for_each 
Since the decl in a for or for-each loop must always be a local
decl, I changed the AST to express this. Fewer potential match
failures and "the impossible happened" error messages = yay!
 2011-06-13 17:33:04 -07:00
Rafael Ávila de Espíndola
eb811a903f Enough driver support to link an empty program on linux. Will 
try to update the Makefiles to use it.
 2011-06-13 16:08:07 -04:00
Patrick Walton
913383d775 rustc: Preserve more type information for interior vectors at the LLVM level, allowing SROA to take place. log ~[ 2 ].(0) now optimizes to just log 2. 2011-06-12 00:44:43 -07:00
Patrick Walton
770bf24d72 rustc: Use in-bounds GEPs for fetching length and data of interior vectors 2011-06-11 23:32:21 -07:00
Patrick Walton
4375329031 rustc: Translate interior vector index expressions 2011-06-11 23:15:16 -07:00
Patrick Walton
8b318be4ce rustc: Typecheck vector index expressions for interior vectors 2011-06-11 19:52:49 -07:00
Patrick Walton
ac206068d9 rustc: Bump the default interior vector size up to 64 bytes 2011-06-11 19:42:48 -07:00
Patrick Walton
182b933ac4 rustc: Link with main.o 2011-06-11 19:31:47 -07:00
Patrick Walton
00eb3f5798 rustc: Sketch out translation of interior vector literals and take/drop glue 2011-06-10 19:36:33 -07:00
Tim Chevalier
b0a80104a3 Un-XFAIL pred-on-wrong-slots 2011-06-10 19:17:15 -07:00
Tim Chevalier
698c6406ba Reject programs with unsatisfied predicate constraints 
Generate appropriate constraints for calls to functions with
preconditions, and reject calls where those constraints don't
hold true in the prestate.

...by which I mean that it works for one test case :-)
 2011-06-10 19:17:15 -07:00
Graydon Hoare
a1bc2b17cc Make darwin happy. 2011-06-10 18:32:38 -07:00
Graydon Hoare
603ad1748b Fix printf flags. 2011-06-10 17:59:34 -07:00
Brian Anderson
10a4ecbd96 stdlib: Remove a FIXME for issue #452 2011-06-11 00:42:52 +00:00
Brian Anderson
2723e1c48f test: Add tests for issue #452 2011-06-11 00:42:52 +00:00
Graydon Hoare
c734c969fb Merge branch 'master' of github.com:graydon/rust 2011-06-10 17:36:23 -07:00
Graydon Hoare
1d1010cac0 Move rt:: logging namespace to ::rt:: and implement RUST_LOG=? and RUST_LOG=::help as synonyms that dump the crate logging map. Also warn when some logging specs don't match. 2011-06-10 17:31:48 -07:00
Lindsey Kuper
f6d7d75699 More work on typechecking anon objs. 2011-06-10 17:18:08 -07:00
Graydon Hoare
8876e2c29e Oops, fix logging string specs. Nobody likes writing RUST_LOG=_ZN5rustc5front7creaderE, do they? 2011-06-10 16:32:21 -07:00
Graydon Hoare
9671d21408 Implement meta tag matching in creader. Start using it in rustc.rc. Close #459. Close #457. 2011-06-10 15:54:41 -07:00
Tim Chevalier
774c6d0198 Friendlier error message for break outside a loop 
The typechecker should really check for this, but at least now
there's an error message rather than an inexhaustive match failure
in trans.
 2011-06-10 14:34:01 -07:00
Tim Chevalier
e5eacf8ea9 Use RHS type when translating assignments 
In code like "auto foo = fail", a type gets inferred for foo
depending on how it's used. However, fail still has type _|_ and
still should be treated that way: particularly, its value shouldn't
be copied. Fixed trans to reflect that.
 2011-06-10 14:05:06 -07:00
Patrick Walton
f1431adb40 rustc: Add a generic struct_elt() function to trans 2011-06-10 13:49:22 -07:00
Patrick Walton
451fc176d3 rustc: Derive flags for unsafe pointers. Puts out burning tinderbox. 2011-06-10 13:13:46 -07:00
Graydon Hoare
52c4c9014f Encode meta tags in the crate and start sketching enhanced logic for resolving crate "use" directives. 
Now with extra "works on OSX" kludging.
 2011-06-10 12:57:29 -07:00
Patrick Walton
4634f236a9 rustc: Add some missing cases to ty.rs for interior vectors, and modify the pattern match so this is less likely to happen again. Add the LLVM type mapping as well. 2011-06-10 12:07:38 -07:00
Patrick Walton
d8b271e3b1 test: Change bitwise.rs to use ! instead of ~. Should put out burning tinderbox. 2011-06-10 11:34:07 -07:00
Patrick Walton
cc3d484d9d rustc: Add missing cases for istr and ivec to equal_type_structures() 2011-06-10 11:00:56 -07:00
Lindsey Kuper
3ce82d2e70 Fix a non-exhaustive match failure. 2011-06-10 10:58:55 -07:00
Patrick Walton
7b7c746c1e Merge pull request #447 from paulstansifer/quick_error_message_fix 
Error message, instead of segfault, when recursive types are used.
 2011-06-10 10:53:42 -07:00
Patrick Walton
dfdd6dbc54 rustc: Remove the bitwise not operator 2011-06-10 10:47:33 -07:00
Lindsey Kuper
7a066ba547 Dead code elimination. 2011-06-10 10:23:48 -07:00
Marijn Haverbeke
1dbf3e8477 Minimal comment for visit.rs 2011-06-10 17:29:34 +02:00
Marijn Haverbeke
97576bd149 Move some uses of walk to visit in trans.rs 2011-06-10 17:24:20 +02:00
Marijn Haverbeke
e25e05539e Handle mutable references in alias analysis 2011-06-10 16:44:33 +02:00
Marijn Haverbeke
f28796ed99 Fix unsafe uses of mutable references 2011-06-10 16:44:32 +02:00
Marijn Haverbeke
fccf065266 Implement mutable/immutable alias distinction. 
Before, all aliases were implicitly mutable, and writing
&mutable was the same as writing &. Now, the two are
distinguished, and assignments to regular aliases are
no longer allowed.
 2011-06-10 12:15:58 +02:00
Marijn Haverbeke
798bbd2e22 Fix all occurrences of writing to immutable aliases 
You'd be surprised.
 2011-06-10 12:15:28 +02:00
Lindsey Kuper
c51c6ba354 Sketching trans_anon_obj. 2011-06-09 18:16:28 -07:00
Patrick Walton
40e3a9fcbc Revert "Encode meta tags in the crate and start sketching enhanced logic for resolving crate "use" directives." due to tree bustage 
This reverts commit ab3635eebe.
 2011-06-09 18:15:13 -07:00
Patrick Walton
60706f1e35 rustc: Write interior vecs and strings into the metadata and add logic for them in ty_to_str 2011-06-09 18:00:46 -07:00
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
Patrick Walton
1408e1aa16 snap: Register new snapshots 2011-06-09 15:59:31 -07:00
Patrick Walton
54d34bec59 rustc: Parse istr and ivec 2011-06-09 15:05:08 -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
Erick Tryzelaar
501201a431 Remove executable bit from lock_and_signal.cpp. 2011-06-09 12:30:57 -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
Rafael Ávila de Espíndola
46920e073b Remove hack now that stage0 doesn't use it. 2011-06-09 14:26:10 -04:00
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
Patrick Walton
80f86d1e9b stdlib: Make union-find not create loops when unifying two already-unified sets 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
43fbb07126 Add vec::member 2011-06-09 13:11:28 +02:00
Marijn Haverbeke
77c1b9650f Some more workarounds to please the alias checker 
Some of the vec utilities now only work on immutable vecs, since they
would have to be rewritten to do a lot more copying to be alias-safe.

Some forced copying was added to map.rs, showing a weakness in the
alias checker (or maybe the alias system): when fn args are passed
into a function, calling them must assume all aliases that are not
immutably rooted (directly connected to a local or temporary without
any mutable edges) become invalid. This will be a drag on functional
programming in Rust.

Work around alias issues in the stdlib
 2011-06-09 13:08:39 +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
537d4ac65a rustc: Fix error pattern in compile-fail/arg-count-mismatch.rs 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
Graydon Hoare
8691a1a1e5 Tidy up 'export meta' situation now that snapshot understands it. 2011-06-08 15:58:03 -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
Graydon Hoare
b02b50c695 Register new snapshots. 2011-06-08 14:58:58 -07:00
Patrick Walton
2f853ddb8d test: Add a test case for issue #362, "ret none". 2011-06-08 12:52:36 -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
Rafael Ávila de Espíndola
7034a28241 Update the snapshot. 2011-06-07 20:40:31 -04:00
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
Josh Matthews
df9cf0be9b Add multiline, whitespace-eating strings. 2011-06-07 11:21:10 +02:00
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
Brian Anderson
53ea2a4751 stdlib: Use spans for #fmt errors originating in std 
Issue #444
 2011-06-04 19:48:19 -04:00
Brian Anderson
a177dc485b rustc: Reenable debug logging in extfmt 
This is not obnoxious now that logging is off by default
 2011-06-04 17:57:53 -04:00
Brian Anderson
4b566fe7f9 rustc: Hide the parser from syntax extensions 
Eventually extensions will probably need access to the parser again, but it'll
be in a different form.
 2011-06-04 17:51:59 -04:00
Brian Anderson
c88fa92de4 rustc: Generate extension annotations from ext_ctxt instead of parser 2011-06-04 17:44:24 -04:00
Brian Anderson
1d6f1dc58d rustc: Add a next_ann method to ext_ctxt 
After this we can remove the parser from the syntax extensions, at least for
now.
 2011-06-04 17:31:44 -04:00
Brian Anderson
3ca5fff195 rustc: Use spans for #env errors 
Issue #444
 2011-06-04 17:14:32 -04:00
Brian Anderson
ac83e34dc6 rustc: Report unimplemented #fmt features with spans 2011-06-04 17:10:08 -04:00
Brian Anderson
dd588519bd rustc: Add a span_unimpl method to ext_ctxt 2011-06-04 17:10:08 -04:00
Brian Anderson
ecf1bd7651 rustc: Use spans on extfmt error messages 
Issue #444
 2011-06-04 17:10:04 -04:00
Brian Anderson
794221b353 rustc: Return the correct span from parse_seq 2011-06-04 16:36:08 -04:00
Brian Anderson
c18f2e2dac rustc: Pass the correct span to syntax extensions 2011-06-04 15:57:13 -04:00
Brian Anderson
af46f3ed0d rustc: Introduce ext module. Move some things from parser to ext. 
Introduce an ext_ctxt record to provide a span_err method for use while
expanding syntax extensions. Hopefully it will be useful for other things.
 2011-06-04 15:49:42 -04:00
Paul Stansifer
dbd066a02a "macro" -> "syntax extension" for now 2011-06-03 18:47:11 -07:00