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1521 Commits

Author SHA1 Message Date
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
Eric Holk
a2dcd08cc2 Added string duplication to deep_copy. Closes #520. 2011-06-20 13:47:02 -07:00
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
5640bead58 Teach ret_ty_of_fn_ty to understand native functions. Closes #506. 2011-06-20 12:04:33 -07:00
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
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
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
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
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
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
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
2ba7729ae7 rustc: Cache results of type_has_pointers. 70% translation speedup. 2011-06-18 00:41:25 -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
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
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
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
753da64fd6 rustc: Demand unification of both sides of a binop 
Issue #500
 2011-06-17 11:35:00 -07:00
Paul Stansifer
391348ec86 Consistify ast::local. 2011-06-16 17:56:24 -07:00
Patrick Walton
ab7ebb608a rustc: Fix dominance issue when translating generic interior vectors 2011-06-16 17:48:32 -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
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
e7575b9f3a rustc: Add cases for istr and ivec to visit 2011-06-16 14:26:11 -07:00
Lindsey Kuper
a5563e173e Clean up whitespace oddities perpetrated by pretty-printer. 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
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
Patrick Walton
4673eb6839 rustc: Fix LLVM type error when generating cmp glue for interior vectors 2011-06-16 11:16:03 -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
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
Brian Anderson
94d971c0e8 rustc: Remove unused variable from check_assignment 2011-06-15 16:48:59 -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
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
Lindsey Kuper
fa5a7e7453 Simple anonymous objects get through translation. 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
ce72993488 Reformat source tree (minus a couple tests that are still grumpy). 2011-06-15 11:19:50 -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
31116dcdd5 rustc: Make room in item_mod for metadata 
Issue #487
 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
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
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
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
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
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
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
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
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
00eb3f5798 rustc: Sketch out translation of interior vector literals and take/drop glue 2011-06-10 19:36:33 -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
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
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
cc3d484d9d rustc: Add missing cases for istr and ivec to equal_type_structures() 2011-06-10 11:00:56 -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
Tim Chevalier
1cc3fe567c Improve error message for wrong number of type arguments 
Improve error message in the case where a use of a polymorphic tag has
insufficient type arguments given. Before, the typechecker was
just crashing with a bounds check error.
 2011-06-09 14:50:49 -07:00
Patrick Walton
efcf8570f0 rustc: Remove comment dating back to the rustboot days from typeck 2011-06-09 14:19:04 -07:00
Patrick Walton
c7ca08d1b6 rustc: Remove all calls to resolve_all_vars and the function itself 2011-06-09 14:17:50 -07:00
Patrick Walton
06d706e197 rustc: Remove the call to resolve_all_vars when typechecking field exprs 2011-06-09 14:04:11 -07:00
Patrick Walton
3009574165 rustc: Unify with the root types 2011-06-09 14:04:11 -07:00
Marijn Haverbeke
1146136fa8 Fix double import that now somehow gets caught by resolve 2011-06-09 20:48:06 +02:00
Marijn Haverbeke
4ab862a50d Switch resolve pass to use visit.rs rather than walk.rs 2011-06-09 20:44:04 +02:00
Marijn Haverbeke
d8516178e5 Pass ty params to visit::visit_fn 2011-06-09 20:44:04 +02:00
Tim Chevalier
d1819fb747 Improve an error message in resolve 2011-06-09 11:37:52 -07:00
Tim Chevalier
b34a97de39 Start to check expr_check and expr_call constraints in typestate 
Start writing the cases for expr_check and expr_call to take
predicates into account, but this isn't working yet.
 2011-06-09 11:37:52 -07:00
Tim Chevalier
17ff2a0d79 Further support for predicate constraints 
Changed function types to include a list of constraints. Added
code for parsing and pretty-printing constraints. This necessitated
splitting pprust into two files (pprust and ppaux) to break a
circulate dependency, as ty_to_str now needs to print out constraints,
which may include literals, but pprust depended on ty.
 2011-06-09 11:37:52 -07:00
Patrick Walton
a4663d2845 rustc: Add fast paths for vars and param folds. 3x typechecking speedup. 2011-06-09 11:20:47 -07:00
Patrick Walton
73ae684536 rustc: Don't resolve all type variables eagerly for paths 2011-06-09 10:51:51 -07:00
Marijn Haverbeke
537d879dc1 Properly handle lifetime of aliases in nested blocks 
There was a bug that would cause the alias analyser to allow you to
invalidate an alias that was no longer directly referred to, even if
another alias was rooted in it. It now properly tracks dependencies
between live aliases.

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

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

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

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

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

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

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

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

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

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

This makes the compiler slightly faster and 19k smaller.

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

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

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

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

Also add syntax for annotating functions that never return:

fn foo() -> ! {
   fail;
}

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

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

Name collision checking in local scopes will follow soon.
 2011-05-18 22:24:20 +02:00
Patrick Walton
13d9f6a264 rustc: Split out type variable fixups from unification 2011-05-18 13:08:54 -07:00
Patrick Walton
37d5dd9471 rustc: Group the variable binding machinery into a separate data structure during unification 2011-05-18 11:54:12 -07:00
Rafael Ávila de Espíndola
a795d0e5b2 And yet more dead code. 2011-05-18 14:28:08 -04:00
Patrick Walton
f4e049c415 rustc: Thread a statement context through the typechecker; use it for generating variable IDs. 40% typechecking speedup. 2011-05-17 22:21:31 -07:00
Patrick Walton
fdf8c49882 rustc: Don't rebuild the AST when typechecking statements 2011-05-17 21:09:34 -07:00
Patrick Walton
ace8058277 rustc: Have typechecking no longer rebuild the AST 2011-05-17 20:13:04 -07:00