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1749 Commits

Author SHA1 Message Date
Eric Holk
827e300485 refactor: Move the task and communication-related translation functions to a new module. 2011-07-14 17:33:28 -07:00
Michael Sullivan
e9a6fc94d5 Make collect_upvars know about function args. 
Closes #697.
 2011-07-14 19:18:56 -05:00
Michael Sullivan
a3301f74f9 Generalize collect_upvars to work over any type of ast node. 2011-07-14 19:18:56 -05:00
Eric Holk
8afb1a7c63 refactor: Move the LLVM type and constant constructors into a new module. 2011-07-14 17:08:45 -07:00
Michael Sullivan
e2fcd29bbd Consolidate some arguments in typeck by just passing the record they came from. 2011-07-14 18:45:55 -05:00
Michael Sullivan
53c4cb6a2f Factor out build_environment's code to find a variable in a function context. 2011-07-14 18:45:02 -05:00
Michael Sullivan
759317ca8b Factor out closure construction from trans_for_each. 2011-07-14 18:45:01 -05:00
Michael Sullivan
0957525cc6 Fix array out of bounds index in load_environment. 
Closes #696.
 2011-07-14 18:34:43 -05:00
Rafael Ávila de Espíndola
c124a025bf Move rustc to the new llvm type system. Requires an update to llvm trunk. 2011-07-14 15:19:17 -04:00
Patrick Walton
e76f44453b rustc: First stab at interior string literals, untested as of yet 2011-07-14 11:47:20 -07:00
Brian Anderson
f4beac4a43 Revert "Allow main to return int" 
This reverts commit 8c94d8fd54.

There's no mechanism to actually return the value from main, so all this does
is allow main -> int to compile. Per #688, the program returns non-zero on
failure, so it's not obvious that this change is appropriate at this time.
 2011-07-14 10:37:28 -07:00
Rafael Ávila de Espíndola
7376e751ae Keep a pointer to rust_object_type. 2011-07-14 12:07:51 -04:00
Rafael Ávila de Espíndola
40f617390d Main part of the type system rewrite: 
Change the type of all objects to be { {}*, {}* }.
 2011-07-14 00:34:45 -04:00
Brian Anderson
8c94d8fd54 Allow main to return int 2011-07-13 19:22:53 -07:00
Tim Chevalier
f26ca025de Make resolve and the typechecker check for a main fn of the 
correct type

This means if a non-library program leaves out the main program,
the error gets caught earlier than link.

Closes #626.
 2011-07-13 18:30:53 -07:00
Patrick Walton
196753e4c3 rustc: Remove some interior vectors from ty, except the ones that I think were causing crashes before 2011-07-13 17:39:33 -07:00
Rafael Ávila de Espíndola
c94fc7aad8 Small cleanups that were missing in the last patch. 2011-07-13 20:21:17 -04:00
Rafael Ávila de Espíndola
9036758191 Next step in the type system change. Add task_type to the context. 2011-07-13 20:07:16 -04:00
Patrick Walton
2a3ab10f20 rustc: Remove exterior vectors from resolve again 
This reverts commit 6390c43dc4.
 2011-07-13 16:44:39 -07:00
Rafael Ávila de Espíndola
3d353f76a9 First step in the typesystem rewrite: 
Create the typedesc type in one place. That is where it will be named.
 2011-07-13 19:37:19 -04:00
Graydon Hoare
39151f2ad8 Prohibit trailing whitespace under 'tidy' script. Clean up all caught cases. 2011-07-13 15:44:09 -07:00
Tim Chevalier
04b239f3cb Use more precise spans in error messages for bad FRU exprs 
The type error message for an expression using FRU where a field
expression had the wrong type was using the span for the entire
expression. Fixed it to use the span for the individual field.

Closes #628.
 2011-07-13 15:30:30 -07:00
Marijn Haverbeke
8d68b0462a Refactor out some repetetive code in trans_alt 2011-07-13 11:33:46 +02:00
Marijn Haverbeke
be4f7354b4 Add box patterns 
An @ can now be prepended to a pattern to unbox something during
pattern matching.

Closes #661
 2011-07-13 11:11:43 +02:00
Marijn Haverbeke
6cb5c0980a box patterns, expect for the trans part 2011-07-13 10:50:16 +02:00
Marijn Haverbeke
6914d32acc Do not allow moving out of obj fields, properly check move inits 
Closes #591
 2011-07-13 10:23:13 +02:00
Patrick Walton
729fa81d3b Revert "rustc: Remove some exterior vectors from ty.rs" 
This reverts commit 01ea0647bb.
 2011-07-12 18:47:26 -07:00
Patrick Walton
6390c43dc4 Revert "rustc: Remove exterior vectors from resolve" 
This reverts commit 0ffe8c81c3.
 2011-07-12 18:42:58 -07:00
Patrick Walton
79ee267ef4 rustc: Remove the last few exterior vectors from typeck 2011-07-12 18:41:27 -07:00
Patrick Walton
f7ba28573f rustc: Remove a few scattered uses of exterior vectors from typestate 2011-07-12 18:34:22 -07:00
Patrick Walton
0ffe8c81c3 rustc: Remove exterior vectors from resolve 2011-07-12 18:29:03 -07:00
Patrick Walton
01ea0647bb rustc: Remove some exterior vectors from ty.rs 2011-07-12 18:21:50 -07:00
Patrick Walton
cdda0fd6d6 rustc: Remove some useless std::vec imports 2011-07-12 18:07:12 -07:00
Brian Anderson
41a3888da7 Fix type inference of fn tail expressions. Closes #680 2011-07-12 16:54:46 -07:00
Patrick Walton
a3add84909 rustc: Remove some interior vectors from typestate and some useless vec-related imports 2011-07-12 16:44:57 -07:00
Marijn Haverbeke
12d5532166 Use switches rather than chained conditionals to compile alt matches 
This also moves the alt-related trans code into its own file.

Closes #467
 2011-07-13 00:38:24 +02:00
Tim Chevalier
f7a1006a07 Make resolve check for type-variable name-shadowing 
Capturing a type argument in the enclosing scope should be an error --
this commit implements that check in resolve, avoiding a potential
assertion failure in trans.

Closes #648.
 2011-07-12 13:42:05 -07:00
Lindsey Kuper
0d9c08af2a Remove some obsolete comments. 2011-07-12 12:01:02 -07:00
Lindsey Kuper
a0b78e649e "Narrow scope forgives many sins." -- M. Schwern 2011-07-12 12:01:02 -07:00
Patrick Walton
0be1a0b500 rustc: Simplify tritv::copy; shaves a couple of seconds off typestate. 2011-07-12 11:47:32 -07:00
Tim Chevalier
e1f9bfbac9 Add missing files 
git add didn't, so this actually has the changes that should
have been in the previous commit
 2011-07-12 11:26:14 -07:00
Tim Chevalier
0e594939aa Fix potential use-before-init bug in trans 
This was being masked by a bug in typestate (fixed in the next commit).
 2011-07-12 11:21:14 -07:00
Paul Stansifer
48dbee6b47 Add elipses, reorganize the macro components into their own AST node. 2011-07-11 18:52:50 -07:00
Paul Stansifer
425732311a Move macro expansion to a separate phase, change macro syntax, and add parse_sess to session. 2011-07-11 18:52:50 -07:00
Tim Chevalier
e1620def9f In typeck, check for dynamically sized by-value arguments to thunks 
A check in trans didn't have a corresponding check in typeck, causing
some programs (to wit, compile-fail/chan-parameterized-args.rs - part of this
commit) to fail with an assertion failure in trans instead of a type error.
Fixed it. In short, arguments that are future thunk arguments (any spawn
arguments, and _ arguments in bind) need to either not contain type params
or type vars, or be by-reference.

Closes #665.
 2011-07-11 17:32:00 -07:00
Patrick Walton
05390b4b38 rustc: Implement explicit global scope resolution via leading "::"; add a test case 2011-07-11 16:02:16 -07:00
Tim Chevalier
9427864f33 Unify the rhs and lhs types in a send 
Closes #662.

One-line fixes are always the best :-D
 2011-07-11 15:24:47 -07:00
Patrick Walton
79ce5a4614 rustc: Implement pointer dereference; add a test case 2011-07-11 15:19:16 -07:00
Michael Sullivan
4618e802db Fix comparisons of the nil type to do something sensible. 
Closes #576.
 2011-07-11 14:45:21 -07:00
Marijn Haverbeke
c893188549 Use some actual or-patterns in resolve.rs 2011-07-11 21:23:49 +02:00
Michael Sullivan
7340824cbc Fix autoderef of function calls when the function is not an lval. 
As it turns out, the correct way to handle this is much simpler than what I
did originally.
Also add more tests.
 2011-07-11 11:38:01 -07:00
Michael Sullivan
cd97f4eed0 Fix handling of derived tydescs in bind. 
In trans_bind_thunk, we need to load the tydescs from the environment *before*
we try to construct derived tydescs from them.
 2011-07-11 11:37:55 -07:00
Michael Sullivan
0beb271d8c Fix bind to work with boxed arguments with type parameters. 
This still doesn't work with bare fn arguments with type parameters.
 2011-07-11 11:37:55 -07:00
Marijn Haverbeke
7595fe5153 Implement record patterns 
Closes #469.
 2011-07-11 15:32:41 +02:00
Marijn Haverbeke
12cb128a0a Move visit to newtype-style nominal type 
This makes getting the function fields out of the visitor less
cumbersome and more efficient (no take/drop).
 2011-07-11 13:53:50 +02:00
Marijn Haverbeke
5f544b1366 Output a meaningful error when too few or too many type parameters given 
Closes #619
 2011-07-11 13:19:34 +02:00
Marijn Haverbeke
86ee3454a1 Implement or-patterns in case clauses 
You can now say

    expr_move(?dst, ?src) | expr_assign(?dst, ?src) { ... }

to match both expr_move and expr_assign. The names, types, and number
of bound names have to match in all the patterns.

Closes #449.
 2011-07-11 11:01:54 +02:00
Marijn Haverbeke
4d325b1a15 Spill instead of copy when binding a pattern that's only a var binding 
The alias rules guarantee that the alt-ed value will outlive the binding's
last use, so this is safe.

This is a preparation for or-patterns. Joining scoped bindings seems like
it would get messy.
 2011-07-11 10:33:19 +02:00
Brian Anderson
e494e73cdd Use more encapsulation for metadata::cstore 2011-07-10 15:44:11 -07:00
Patrick Walton
f42c94740a rustc: Make rust-intrinsics take an explicit return pointer 2011-07-09 21:13:25 -07:00
Tim Chevalier
182c413af1 Propagate constraints through copy, move, and swap 
Assignments and moves with a simple local variable reference on the
RHS now propagate any typestate constraints the RHS was involved
in to the LHS. Swaps where both sides are local variables
exchange the constraints.

This was a pain in the butt and I'm still not proud of the resulting
code. Needs refactoring like whoa.
 2011-07-08 22:25:57 -07:00
Tim Chevalier
be6febb46d Minor refactoring 2011-07-08 22:25:57 -07:00
Tim Chevalier
36c4cb37ad Improve impossible-case handling in ty::get_element_type 2011-07-08 22:25:57 -07:00
Brian Anderson
7498d03693 Improve the error message for import glob collisions. Closes #482 
Instead of noting where the imported things were defined, note where they were
imported. This is more useful and avoids issue #482.
 2011-07-08 18:55:01 -07:00
Patrick Walton
1ff426b89f rustc: Use interior vectors for the union-find in rustc 2011-07-08 17:00:21 -07:00
Patrick Walton
8450ab9a2b rustc: Fix a level-of-indirection problem by using size_of() to compute dynamically sized interior vector element sizes instead of field_of_tydesc() 2011-07-08 16:37:43 -07:00
Rafael Ávila de Espíndola
94f0e9d956 Add just enough logic to the driver so that we can link std statically. 2011-07-08 15:05:32 -04:00
Patrick Walton
7c66894a71 rustc: Do dynamic size calculations properly when concatenating interior vectors. Closes #640. 2011-07-08 11:29:29 -07:00
Brian Anderson
d0a432f4bb Don't export tyencode from the metadata module 
This involves pulling the type_abbrev cache out of crate_ctxt
 2011-07-08 09:37:01 -07:00
Brian Anderson
06391dda02 Make the interface to metadata::csearch more consistent 2011-07-08 09:37:01 -07:00
Brian Anderson
7ae711fc03 Begin splitting metadata::decoder into decoding and crate search modules 2011-07-08 09:37:01 -07:00
Brian Anderson
29b766029c Move external crate/lib resolution to its own pass 
The scope of external crate reading is beyond the resolve pass now, as it
builds up tables of information needed for several different purposes.
 2011-07-08 09:37:01 -07:00
Brian Anderson
85535fc3e0 Move crate_map from resolve to cstore 2011-07-08 09:37:00 -07:00
Brian Anderson
82983e5005 Replace the crate cache in session with the one in cstore 2011-07-08 09:37:00 -07:00
Marijn Haverbeke
c7bfef43c8 Ignore current scope when resolving self-shadowing imports 
That is, for example, import x::y::x, which defines a local x,
and thus wouldn't be able to find x::y anymore.

Closes issue #624
 2011-07-08 16:04:40 +02:00
Marijn Haverbeke
eeda0f4ab1 Don't unbox types in ty::is_binopable, do it on typeck side instead 
Closes issue #631

Removes ty::strip_boxes entirely, since unboxing is now more complicated
anyway.
 2011-07-08 15:52:54 +02:00
Marijn Haverbeke
381505f947 Remove useless return value in typeck::check_decl_local 2011-07-08 15:01:54 +02:00
Marijn Haverbeke
022363a674 Auto-bind generic functions when their value is taken in non-call context 
trans::trans_lval will now autobind if the given expression was the
name of a generic functions. Those callees (trans_call and trans_bind)
that are interested in the generics information call trans_lval_gen
now.
 2011-07-08 14:28:46 +02:00
Marijn Haverbeke
faec0d7799 Avoid superfluous take/drop for temp values passes as arguments 2011-07-08 13:46:29 +02:00
Marijn Haverbeke
b41fd61045 Make for-each bodies close over their parent's iterbody 
Closes issue #639
 2011-07-08 11:55:15 +02:00
Patrick Walton
7ed556cf8e rustc: Check iter return types. Closes #638. 2011-07-07 19:08:59 -07:00
Patrick Walton
2255eda625 rustc: Fix long line 2011-07-07 18:41:54 -07:00
Patrick Walton
edf8245273 rustc: Make trans use interior vectors 2011-07-07 18:39:05 -07:00
Patrick Walton
e1b107d74e rustc: Remove all exterior vectors from the AST 2011-07-07 18:39:05 -07:00
Lindsey Kuper
3243144046 Fix a bug that was interfering with method overriding. Issue #543. 
Previously, we were creating both a normal vtable entry and a
forwarding function for overriding methods, when they should have just
gotten a vtable entry.  This patch fixes that.
 2011-07-07 17:29:15 -07:00
Patrick Walton
deca79f372 Merge pull request #634 from robarnold/upstream-stable 
Allocate ivecs out of the kernel pool
 2011-07-07 15:18:07 -07:00
Brian Anderson
4304f8d4f6 Remove duplicate definition of def_to_str from middle::ty 2011-07-07 13:31:11 -07:00
Patrick Walton
0e2fff5337 rustc: Change lots of AST nodes to use interior vectors 2011-07-07 12:53:17 -07:00
Rafael Ávila de Espíndola
6d6c4c2a76 Command line changes for adding support for static libraries. 2011-07-07 14:42:50 -04:00
Marijn Haverbeke
16f82dce1c Clean up trans_arg_expr 
As a preparation for implementing the temporary-move optimization for
argument passing. The optimization itself isn't in yet, since it
mysteriously corrupts memory.
 2011-07-07 17:54:58 +02:00
Marijn Haverbeke
3bdbf74d47 Make moving of temporaries do the right thing, use it to optimize 
This adds support for dropping cleanups for temporary values when they
are moved somewhere else. It then adds wraps most copy operations
(return, put in data structure, box, etc) in a way that will fall back
to a move when it is safe.

This saves a lot of taking/dropping, shaving over a megabyte off the
stage2/rustc binary size.

In some cases, most notably function returns, we could detect that the
returned value is a local variable, and can thus be safely moved even
though it is not a temporary. This will require putting some more
information in lvals.

I did not yet handle function arguments, since the logic for passing
them looked too convoluted to touch. I'll probably try that in the
near future, since it's bound to be a big win.
 2011-07-07 15:54:01 +02:00
Marijn Haverbeke
007a736642 Improve handling of move and swap by alias checker 
Closes issue #541.
Closes issue #591
 2011-07-07 10:37:19 +02:00
Rob Arnold
f6117173c9 Allocate rust_ivec buffers out of the kernel pool 
The duplication of upcalls is due to the fact that the runtime is
shared between stage0/rustc and stage1/rustc. Once snapshots are
updated, they should be de-duplicated.
 2011-07-06 20:41:24 -07:00
Lindsey Kuper
130006cdda Tie the knot for self-calls inside extended objects. Closes #539. 2011-07-06 18:39:01 -07:00
Lindsey Kuper
6ca81b3407 Fix a pointer bug. 2011-07-06 17:16:54 -07:00
Lindsey Kuper
553beda96d Add span information to create_vtbl and friends. 2011-07-06 17:16:53 -07:00
Lindsey Kuper
41f6a3d5e1 Comments and cleanup. 2011-07-06 17:16:53 -07:00
Patrick Walton
aad0bcc8d5 rustc: Make AST tuple types use interior vectors 2011-07-06 15:53:47 -07:00
Patrick Walton
7714cb297b rustc: Make AST paths use interior vectors 2011-07-06 15:14:52 -07:00
Patrick Walton
368f1f4ba8 rustc: Move middle::tstate::collect_locals over to interior vectors 2011-07-06 15:14:45 -07:00
Patrick Walton
b232ad94fd rustc: Remove unused or seldom-used imports from middle::tstate::{bitvectors, ck} 2011-07-06 15:14:35 -07:00
Patrick Walton
5739e0be01 rustc: Remove some unused references to std::vec from tstate::ann and tstate::auxiliary 2011-07-06 15:14:29 -07:00
Patrick Walton
abab04635a rustc: Move middle::tstate::auxiliary and middle::tstate::bitvectors over to interior vectors 2011-07-06 15:14:19 -07:00
Patrick Walton
6d1517cf3a rustc: Move tstate::annotate over to interior vectors 2011-07-06 15:14:09 -07:00
Patrick Walton
35c1dbd492 rustc: Convert bind_params_in_type() to use interior vectors 2011-07-06 15:13:59 -07:00
Patrick Walton
1d57800236 rustc: Migrate tag variants to interior vectors 2011-07-06 15:13:54 -07:00
Patrick Walton
2e1aa04fcd rustc: Make object methods into interior vectors 2011-07-06 15:13:47 -07:00
Brian Anderson
0eac640fdd Swap the expected/actual for typechecking fields of updated records 
In 'rec(a = b with c)', if a exists in c then the expected type for b is the
type of c.
 2011-07-06 14:04:52 -07:00
Patrick Walton
05954f37b7 rustc: Use an interior vector for ty::count_ty_params 2011-07-06 12:05:18 -07:00
Patrick Walton
e066bae56e rustc: Move the interner over to interior vectors 2011-07-06 12:05:13 -07:00
Patrick Walton
717ac3df77 rustc: Make the various constraint-related types in middle::ty use interior vectors 2011-07-06 12:05:06 -07:00
Patrick Walton
2fd46b54fb rustc: Make type parameter substitutions interior vectors 2011-07-06 12:04:59 -07:00
Patrick Walton
cb2018c6db rustc: Change constraints in types to use interior vectors 2011-07-06 12:04:07 -07:00
Patrick Walton
13d920c10d rustc: Switch tag type parameters to interior vectors 2011-07-06 12:03:55 -07:00
Patrick Walton
ede35f4c43 rustc: Use interior vectors for tag type parameters 2011-07-06 12:03:06 -07:00
Brian Anderson
066bcc6c79 Make "cannot determine a type for this local variable" non-fatal 2011-07-06 11:44:42 -07:00
Brian Anderson
5c20a8aa9c Make "cannot determine a type for this expression" non-fatal. Closes #621 2011-07-06 11:44:36 -07:00
Brian Anderson
c31472e845 Refactor the typeck::writeback AST walk 
All visitors take a wb_ctxt now instead of some taking a fn_ctxt and some
taking an ignore flag.
 2011-07-06 11:42:20 -07:00
Brian Anderson
0c9c4cb575 Remove unused method from typeck::writeback 2011-07-06 11:42:20 -07:00
Brian Anderson
c1136e4e05 Limit exports from typeck 2011-07-06 11:42:20 -07:00
Brian Anderson
97c1537374 Limit exports from typeck::writeback 2011-07-06 11:42:20 -07:00
Lindsey Kuper
e30d2c82ae Simplify AST for expr_anon_obj. 2011-07-06 11:36:06 -07:00
Lindsey Kuper
23bae67f4c Simplify arguments to trans_anon_obj and friends. 2011-07-06 11:36:06 -07:00
Patrick Walton
bbdba21b1f rustc: Revert the conversion to interior vectors due to heap corruption 2011-07-06 11:26:26 -07:00
Patrick Walton
1591955adf rustc: Make AST paths use interior vectors 2011-07-06 11:09:08 -07:00
Patrick Walton
b108280db1 rustc: Move middle::tstate::collect_locals over to interior vectors 2011-07-06 11:09:08 -07:00
Patrick Walton
48438ba1ae rustc: Remove unused or seldom-used imports from middle::tstate::{bitvectors, ck} 2011-07-06 11:09:07 -07:00
Patrick Walton
ec634e471f rustc: Remove some unused references to std::vec from tstate::ann and tstate::auxiliary 2011-07-06 11:09:07 -07:00
Patrick Walton
cfc659009e rustc: Move middle::tstate::auxiliary and middle::tstate::bitvectors over to interior vectors 2011-07-06 11:09:07 -07:00
Patrick Walton
702f88a3be rustc: Move tstate::annotate over to interior vectors 2011-07-06 11:09:07 -07:00
Patrick Walton
4c384304e9 rustc: Convert bind_params_in_type() to use interior vectors 2011-07-06 11:09:07 -07:00
Patrick Walton
5703bd1760 rustc: Migrate tag variants to interior vectors 2011-07-06 11:09:07 -07:00
Patrick Walton
52a7c2b78e rustc: Make object methods into interior vectors 2011-07-06 11:09:07 -07:00
Patrick Walton
75c5f9bdba rustc: Use an interior vector for ty::count_ty_params 2011-07-06 11:09:06 -07:00
Patrick Walton
bd7a072266 rustc: Move the interner over to interior vectors 2011-07-06 11:09:06 -07:00
Patrick Walton
b9a2117475 rustc: Make the various constraint-related types in middle::ty use interior vectors 2011-07-06 11:09:06 -07:00
Patrick Walton
0eb889f9d2 rustc: Make type parameter substitutions interior vectors 2011-07-06 11:09:06 -07:00
Patrick Walton
8bee69da25 rustc: Change constraints in types to use interior vectors 2011-07-06 11:09:06 -07:00
Patrick Walton
f391acbd3f rustc: Switch tag type parameters to interior vectors 2011-07-06 11:09:06 -07:00
Patrick Walton
09e591c12f rustc: Use interior vectors for tag type parameters 2011-07-06 11:09:06 -07:00
Marijn Haverbeke
7661c08496 Remove temporary stdlib placeholders, use actual stdlib functions 
(Possible now that a snapshot took place.)
 2011-07-06 16:46:17 +02:00
Lindsey Kuper
4c315666dd Forwarding functions. Lots of progress toward #539, #540, #543. 2011-07-05 20:21:59 -07:00
Lindsey Kuper
993e47175f Comments and cleanup. 2011-07-05 20:17:33 -07:00
Tim Chevalier
f279e0d76e Handle pattern-bound upvars 
If a closure inside a case alternative (for example, a for each loop)
referenced a pattern-bound variable, this would cause an assertion
failure in trans. Changed trans::collect_upvars to handle pattern-bound
vars correctly.

Incidentally, eliminated all direct uses of option::get in trans.
 2011-07-05 19:58:49 -07:00
Tim Chevalier
a793b85fbd Handle fail inside a for-each loop properly 2011-07-05 16:05:38 -07:00
Tim Chevalier
ded9008e38 handle fail inside a for loop 2011-07-05 16:05:38 -07:00
Tim Chevalier
6d0cb70fc3 Handle fail as an argument 2011-07-05 16:05:38 -07:00
Brian Anderson
a9d84ab28a Make type unification failures non-fatal 
Add a failure checkpoint after the typechecking pass. There are still many
fatal errors in typeck, but loosening up this one makes it easier to lean on
the compiler when making changes to types.

Issue #440.
 2011-07-05 14:40:33 -07:00
Graydon Hoare
a7d82a7f0f Factor the ivec code a touch. 2011-07-05 14:19:27 -07:00
Marijn Haverbeke
4349eaed84 Don't thread the local crate number through the session 
It's a constant, anyway.
 2011-07-05 16:09:32 +02:00
Marijn Haverbeke
6fd6fdea93 Move everything syntax-related to syntax/, break deps on rest of compiler 
src/comp/syntax is currently just a sub-module of rustc, but it will,
in the near future, be its own crate. This includes:

 - The AST data structure
 - The parser
 - The pretty-printer
 - Visit, walk, and fold
 - The syntax extension system
 - Some utility stuff that should be in the stdlib*

*) Stdlib extensions currently require a snapshot before they can be
   used, and the win build is very broken right now. This is temporary
   and will be cleaned up when one of those problems goes away.

A lot of code was moved by this patch, mostly towards a more organized
layout. Some package paths did get longer, and I guess the new layout
will take some getting used to. Sorry about that!

Please try not to re-introduce any dependencies in syntax/ on any of
the other src/comp/ subdirs.
 2011-07-05 15:57:21 +02:00
Marijn Haverbeke
fb10829aef Switch the alias checking pass to use span_err instead of span_fatal 
It'll now spit out all problems it finds, and only abort after
the whole pass has run.
 2011-07-04 22:00:07 +02:00
Marijn Haverbeke
b1423be1d6 Move the ids of pat AST nodes into their struct 
Just like it was done with items and exprs. Simplifies some code.
 2011-07-04 22:00:06 +02:00
Josh Matthews
7e7e326ee6 Make use of demand::simple instead of manually checking fail expr type. 2011-07-03 21:46:17 -07:00
Josh Matthews
a2775a5b72 Make non-str fail expression a type checking failure instead of a translation one. 2011-07-03 21:46:17 -07:00
Tim Chevalier
046c25dbc0 Handle fail as an argument; parse fail expressions unambiguously 
An expression like:

foo(1, fail, 2)

was failing to parse, because the parser was interpreting the comma
as the start of an expression that was an argument to fail, rather
than recognizing that the fail here has no arguments

Fixed this by using can_begin_expr to determine whether the next
token after a fail token suggests that this is a nullary fail or a
unary fail.

In addition, when translating calls, check before translating each
argument that the block still isn't terminated. This has the effect
that if an argument list includes fail, the back-end won't keep trying
to generate code for successive arguments and trip the !*terminated
assertion.
 2011-07-03 11:51:47 -07:00
Tim Chevalier
48a69d2100 Eliminate all direct calls to option::get() from typeck 
This means fewer mysterious error messages.
 2011-07-03 02:48:08 -07:00
Tim Chevalier
c425a422ed Manipulate contexts correctly in trans_fail_expr 
This fixes Issue #617
 2011-07-03 02:38:11 -07:00
Tim Chevalier
7426252549 Generate code properly for calls with _|_ - typed arguments 
The code for translating a fail (for example) would call
Unreachable(), which terminates the block; if a fail appeared as an
argument, this would cause an LLVM assertion failure. Changed
trans_call to handle this situation correctly.
 2011-07-02 22:02:59 -07:00
Josh Matthews
d485e0d15a Allow any string expression to be used with fail. 2011-07-02 00:06:58 -07:00
Patrick Walton
67c9ef9b30 rustc: Fix memory corruption with ivectors-inside-ivectors by duplicating *first*, and *then* copying subtypes. 2011-07-01 20:07:19 -07:00
Patrick Walton
d39c59ae41 rustc: Move path_to_str to front::ast 2011-07-01 17:22:18 -07:00
Patrick Walton
f7a2f01746 Revert "rustc: Change methods in ty::t to use interior vectors" 
This reverts commit 6720ea760d.
 2011-07-01 11:37:19 -07:00
Patrick Walton
6720ea760d rustc: Change methods in ty::t to use interior vectors 2011-07-01 11:33:17 -07:00
Brian Anderson
91b87b31e5 Remove the concept of crate directive let statements. Issue #604 2011-07-01 10:45:30 -07:00
Marijn Haverbeke
77f5d14f14 Track def_ids of native types so that they can be distinguished 
Closes #526
 2011-07-01 18:39:24 +02:00
Marijn Haverbeke
432e5e9f7f Allow dereferencing of single-variant, single-argument tag values 
(Using the * operator.)

This makes tags more useful as nominal 'newtype' types, since you no
longer have to copy out their contents (or construct a cumbersome
boilerplate alt) to access them.

I could have gone with a scheme where you could dereference individual
arguments of an n-ary variant with ._0, ._1, etc, but opted not to,
since we plan to move to a system where all variants are unary (or, I
guess, nullary).
 2011-07-01 17:51:47 +02:00
Marijn Haverbeke
fb72be0a89 Do not store a tag num for single-variant tags 
This is a preparation for tags-as-nominal-types. A tag that has only a
single variant is now represented, at run-time, as simply a tuple of
the variant's parameters, with the variant id left off.
 2011-07-01 17:50:52 +02:00
Michael Sullivan
7b1b5d5a8a Implement autoderef for function calls. 
This is important since we are going to be making functions noncopyable
soon, which means we'll be seeing a lot of boxed functions.
(*f)(...) is really just too heavyweight.

Doing the autodereferencing was a very little bit tricky since
trans_call works with an *lval* of the function whereas existing
autoderef code was not for lvals.
 2011-07-01 12:39:58 +02:00
Michael Sullivan
ee45d54a4e Move autoderefed_ty to ty.rs and rename it type_autoderef. 2011-07-01 12:39:57 +02:00
Patrick Walton
b773f8d22b rustc: Duplicate heap data of interior vectors when passing them by value 2011-06-30 19:09:52 -07:00
Patrick Walton
dc9f285b06 rustc: Remove unused variables from last commit 2011-06-30 16:19:04 -07:00
Patrick Walton
108cc4e0ed rustc: Change function argument types to interior vectors 2011-06-30 16:11:39 -07:00
Tim Chevalier
37bfbc4b79 Get rid of remaining unused variables 2011-06-30 12:37:30 -07:00
Tim Chevalier
6a74253d60 Don't warn about unused for-loop index variables 2011-06-30 12:37:30 -07:00
Tim Chevalier
d8db9a0fe1 Kill unused variables 2011-06-30 12:37:30 -07:00
Tim Chevalier
4519f54857 Warn for unused variables 
Modify typestate to check for unused variables and emit warnings
where relevant. This exposed a (previously harmless) bug in
collect_locals where outer functions had bit-vector entries
for init constraints for variables declared in their inner
nested functions. Fixing that required changing collect_locals to
use visit instead of walk -- probably a good thing anyway.
 2011-06-30 12:37:30 -07:00
Patrick Walton
add9031dd5 rustc: Use interior vectors for record types 2011-06-30 12:02:40 -07:00
Patrick Walton
fd0d1cb7d8 rustc: Make mk_imm_tup() take an interior vector 2011-06-30 11:35:05 -07:00
Patrick Walton
b841152a40 rustc: Use interior vectors for tuple types 2011-06-30 11:35:05 -07:00
Eric Holk
b4a145e60f Added a nanosecond timer to time.rs, support for some floating point casts, and a commandline-driven mode for pfib.rs 2011-06-30 11:32:10 -07:00
Brian Anderson
5de916dd5c Move middle::attr to front::attr 2011-06-30 10:06:26 -07:00
Marijn Haverbeke
86f16b90cd Support type parameters in resources 
Some rather dodgy code was added to trans in the process. I'd love to
discuss it with someone who knows more about types during translation.
 2011-06-30 18:36:12 +02:00
Marijn Haverbeke
31ec26d46a Make calling resource destructors work cross-crate 
Tydescs are currently re-created for each compilation unit (and I
guess for structural types, they have to be, though the duplication
still bothers me). This means a destructor can not be inlined in the
drop glue for a resource type, since other crates don't have access to
the destructor body.

Destructors are now compiled as separate functions with an external
symbol that can be looked up in the crate (under the resource type's
def_id), and called from the drop glue.
 2011-06-30 18:36:12 +02:00
Graydon Hoare
c796a8f24d Re-enable tidy (it was broken) and fix various non-tidy things. 2011-06-29 15:14:55 -07:00
Tim Chevalier
76b755f9ad Remove workaround for a compiler bug that, I guess, got fixed 2011-06-29 14:28:03 -07:00
Tim Chevalier
1ba85932b1 Add a runtime flag to enable/disable claims en masse 
Now, if the environment variable CHECK_CLAIMS is set, then all
claims turn into checks. Otherwise, claims are no-ops.
 2011-06-29 14:28:02 -07:00
Brian Anderson
29afe1a518 Write metadata for sythesized name/vers items to the crate's link attr 
If the crate doesn't specify it's name or version, the defaults need to be
exported in the crate metadata
 2011-06-29 14:21:39 -07:00
Brian Anderson
325f46da06 Move the calculation of the crate name, vers and cmh to a single function 2011-06-29 14:21:39 -07:00
Graydon Hoare
5b2c17fba5 Fix resource encoding bugs. 2011-06-29 12:14:29 -07:00
Patrick Walton
b18cefdfd7 rustc: Fix a leak that resulted from copying a structural interior type containing interior vectors. Add a test case. 2011-06-29 12:16:07 -07:00
Patrick Walton
bbd0d58955 rustc: Unbreak self assignment 2011-06-29 10:22:53 -07:00
Michael Sullivan
1d05718c2d Extend visit to use visit_fn to visit fn expressions. 2011-06-29 09:04:00 -07:00
Brian Anderson
7c500fc0a0 Replace common::new_seq_hash with an adapter around std::smallintmap 
It would be better to either convert ast_map to use smallintmap or make
smallintmap and hashmap follow the same interface, but I don't feel up to
it just now. Closes #585.
 2011-06-28 19:48:33 -07:00
Lindsey Kuper
7b5d34aa9a Comments and cleanup. 2011-06-28 19:06:44 -07:00
Lindsey Kuper
57e5cde3a2 Comments and cleanup. 2011-06-28 18:54:56 -07:00
Brian Anderson
6832f75f0b Support attaching attributes to modules via the crate file. Issue #487 2011-06-28 18:39:34 -07:00
Patrick Walton
74f8eb51ae rustc: Move duplicate_heap_parts to copy glue; add a test case 2011-06-28 17:59:30 -07:00
Tim Chevalier
db478ed4de Remove outdated comments 2011-06-28 17:50:07 -07:00
Michael Sullivan
b944d8d72e Require that both sides of a swap be lvals. 2011-06-28 17:28:06 -07:00
Brian Anderson
83b7215366 Cleanup attribute code. Issue #487 2011-06-28 16:55:07 -07:00
Patrick Walton
dfcfef41df rustc: Rename take glue to copy glue 2011-06-28 16:52:59 -07:00
Tim Chevalier
9f1444c701 Implement "claim" 
Implement "claim" (issue #14), which is a version of "check" that
doesn't really do the check at runtime. It's an unsafe feature.

The new flag --check-claims turns claims into checks automatically --
but it's off by default, so by default, the assertion in a claim
doesn't execute at runtime.
 2011-06-28 16:41:06 -07:00
Eric Holk
866ee6ecb4 Re-enabling some tests. 2011-06-28 16:12:34 -07:00
Eric Holk
64596e6583 Teach the parser and typechecker to understand port[int](). Closes #588 2011-06-28 16:11:04 -07:00
Brian Anderson
8ac60e99ea Extract meta_item sorting from back::link to middle::attr 2011-06-28 15:46:09 -07:00
Brian Anderson
aecc5e6e0f Add comments to middle::attr. Issue #487 2011-06-28 15:34:27 -07:00
Brian Anderson
a83b64d15d Rework how linkage attributes are determined 
The meta items within a crate's link attribute are used in linkage:

 #[link(name = "std",
        vers = "1.0",
        custom = "whatever")];

Name and vers are treated specially, and everything else is hashed together
into the crate meta hash.

Issue #487
 2011-06-28 15:25:47 -07:00
Brian Anderson
0608e277b6 Add some helper functions for attributes. Issue #487 2011-06-28 15:25:47 -07:00
Tim Chevalier
28459ca0eb Handle lazy binops properly in typestate 
The typestate analysis now reflects that the second operand of a
logical and or or may not be evaluated.
 2011-06-28 13:07:52 -07:00
Patrick Walton
1ca0db5421 rustc: Add a "type-owns-heap-mem" cache. 2x translation speedup. 2011-06-28 11:36:11 -07:00
Patrick Walton
5f5b7e3348 rustc: Don't call cmp glue if the type is a simple scalar 2011-06-28 11:24:34 -07:00
Marijn Haverbeke
fb14afd5eb Add test cases for resources 2011-06-28 18:00:38 +02:00
Marijn Haverbeke
07125aa38b Fix bug that prevented boxes-in-resources from being freed 2011-06-28 18:00:05 +02:00
Marijn Haverbeke
e2cb97a2fc Add some missing cases for ty_res in ty.rs 2011-06-28 18:00:05 +02:00
Marijn Haverbeke
d730bb730a Make it possible to use * to dereference a resource 2011-06-28 18:00:05 +02:00
Paul Stansifer
c3901cdf8e Add simple syntax extension (#simplext) 2011-06-28 15:02:12 +00:00
Marijn Haverbeke
be748fc215 Properly guard resource values against double-drop 
Ths involved adding an extra field to their representation, so that there is
something to check for zero.
 2011-06-28 16:14:15 +02:00
Patrick Walton
663aa76635 rustc: Call cmp glue directly if we statically know it 2011-06-27 18:35:01 -07:00
Patrick Walton
dfccd5a138 rustc: Fix stack explosion on -O0 from Alloca() instead of alloca() in cmp glue 2011-06-27 18:27:26 -07:00
Tim Chevalier
85b5b2a8e4 Tests for while loops that may invalidate constraints 
Wrote some small test cases that use while loops and moves, to
make sure the poststate for the loop body gets propagated into the
new prestate and deinitialization gets reflected.

Along with that, rewrite the code for intersecting states. I still
find it dodgy, but I guess I'll continue trying to add more tests.
Also, I'll probably feel better about it once I start formalizing
the algorithm.
 2011-06-27 18:14:23 -07:00
Tim Chevalier
6d1050b1c7 pure_exp should set the state, not extend it 
This fixes a bug where de-initializations were getting masked
(and programs that used a variable that had been de-initialized
snuck through).
 2011-06-27 18:14:23 -07:00
Brian Anderson
df2cfac07f Move what's left of metadata::cwriter into middle::trans 2011-06-27 16:30:27 -07:00
Brian Anderson
119193497e Extract metadata::decoder from metadata::creader 2011-06-27 16:30:27 -07:00
Brian Anderson
5601a6f534 Move metadata::cwriter::encode to metadata::tyencode 2011-06-27 16:30:27 -07:00
Brian Anderson
ba5c7a570d Rename middle::metadata to metadata::cwriter. Move creader to metadata 
Preparation for a lot more metadata refactoring
 2011-06-27 16:30:27 -07:00
Brian Anderson
d4a5487e1c Limit exports from middle::metadata 2011-06-27 16:30:27 -07:00
Patrick Walton
e4b5d910dc rustc: Directly emit calls to glue if possible 2011-06-27 15:38:21 -07:00
Brian Anderson
36fb754476 Index obj and res ctor metadata by ctor id, not item id 
Both the type and the ctor were trying to use the same id and this was making
creader unable to find the ctor when running 'rustc --ls'
 2011-06-27 12:34:44 -07:00
Tim Chevalier
a6f36ba3f5 removing log statement that snuck in there 2011-06-27 11:38:07 -07:00
Tim Chevalier
1656fa19ef Implement move for scalar values 
Before, something like:

let int y = 42;
let int x;
x <- y;

would cause an LLVM assertion failure. Fixed it.
 2011-06-27 11:32:06 -07:00
Brian Anderson
29a8219c4c Add a very simple map implementation for sequential integer keys 
Use it for the ast_map. Cuts 40% off the time spent prior to LLVM.
 2011-06-26 20:37:08 -07:00
Brian Anderson
08b49a5d8f Reformulate an assert in ty::tag_variants 
This was doing a redundant hashmap lookup. Removing the redundancy trims 5%
(2.8s) off rustc's compile time
 2011-06-26 18:02:47 -07:00
Brian Anderson
cfaa0f4b91 Fail typechecking for bad binop/type combinations 
Includes assignment operations. Add regression tests for lots of less useful,
less used or unexpected combinations, as well as a selection of compile-fail
tests. Closes #500 (again!)
 2011-06-25 19:42:59 -07:00
Marijn Haverbeke
afa632124f Use single-bar or to make tstate/states.rs prettier 
Sorry. This is the kind of thing I do when I'm on a plane and too
tired to manage anything that requires thinking.
 2011-06-25 21:16:03 +02:00
Marijn Haverbeke
7432017d5e Primitive support for non-copyable values 2011-06-25 21:15:11 +02:00
Marijn Haverbeke
f6753be655 Allow moving out of temporary values 
This will probably need more work, as moving doesn't appear to do
quite the right thing yet in general, and we should also check
somewhere that we're not, for example, moving out the content out of
an immutable field (probably moving out of fields is not okay in
general).
 2011-06-25 21:15:11 +02:00
Marijn Haverbeke
61fc12d0d0 Partial implementation of resources 
Non-copyability is not enforced yet, and something is still flaky with
dropping of the internal value, so don't actually use them yet. I'm
merging this in so that I don't have to keep merging against new
patches.
 2011-06-25 21:15:11 +02:00
Marijn Haverbeke
781a265b88 Remove variable name 'res' from test suite 2011-06-25 21:15:04 +02:00
Tim Chevalier
582e1f13f0 Invalidate constraints correctly after an assignment expression 
Modified typestate to throw away any constraints mentioning a
variable on the LHS of an assignment, recv, assign_op, or on
either side of a swap.

Some code cleanup as well.
 2011-06-24 22:36:53 -07:00
Michael Sullivan
818d7c9398 Use visit_fn_{pre,post} to avoid going past lambdas during writeback instead of explicitly casing. 2011-06-24 15:55:08 -07:00
Michael Sullivan
b732ec6f82 Have walk call visit_fn_pre and visit_fn_post on fn expressions. 
As a side effect, this fixes a bug where typestate would not properly be checked
inside of fn expressions.
 2011-06-24 15:46:20 -07:00
Michael Sullivan
f3717da1b1 Modify the fn vistors in walk so that they can handle functions without names. Update the typestate code to understand this. 2011-06-24 15:46:20 -07:00
Patrick Walton
baf474443a rustc: Increment by the unit size in iter_structural_ty when iterating over interior vectors if the unit size is dynamic 2011-06-24 17:36:30 -04:00
Marijn Haverbeke
2ebd19477b Sanitize use of ids for obj constructors. 
Typeck and trans used to, by historical coincidence, use the item_obj
node id, which was used to identify the obj type by the rest of the
system, for the constructor function. This is now identified by the
ctor id stored in the tag throughout.
 2011-06-24 21:22:52 +02:00
Marijn Haverbeke
9643aedb04 Remove uses of variable name 'res' from rustc 
This in preparation of making 'res' a keyword for defining resources.
Please don't introduce too many new ones in the meantime...
 2011-06-24 21:22:23 +02:00
Marijn Haverbeke
3d7fdb509a Remove def_obj 
Since obj constructors and types have different def_ids now,
their def can simply be a def_fn and a def_ty.
 2011-06-24 21:13:25 +02:00
Patrick Walton
b4c0893a39 rustc: If needed, duplicate types' heap parts recursively through structural types 2011-06-24 14:32:50 -04:00
Brian Anderson
b9fc4dfc54 rustc: Cleanup trans_if, trans_alt 2011-06-23 22:16:16 -07:00
Brian Anderson
05c0216654 rustc: Add ternary operator. Closes #565 
The implementation is so simple it might be considered cheating: at almost
every step the expr_ternary is just converted to expr_if.
 2011-06-23 22:16:11 -07:00