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407 Commits

Author SHA1 Message Date
Graydon Hoare
b54e7e4506 Add new arg-passing mode 'move' denoted with '-T'. Translate as pass-by-value, doesn't deinit source yet nor get proper analysis in typestate, alias passes. 2011-08-08 15:53:41 -07:00
Tim Chevalier
5f03ca48d8 Add a fast path in ty::occurs_check_fails 
Use type_contains_vars in occurs_check_fails to avoid doing
any work most of the time. This fixes a performance regression.
(No one else noticed yet that typechecking just got 4x slower, right?
Well, now it isn't anymore. :-})
 2011-08-04 15:56:40 -07:00
Tim Chevalier
2baaeab784 Implement the occurs check 
In the writeback phase, the typechecker now checks that it isn't
replacing a type variable T with a type that contains T. It
also does an occurs check in do_autoderef in order to avoid
getting into an infinite chain of derefs.

I'm a bit worried that there are more places where the occurs
check needs to happen where I'm not doing it now, though.

Closes #768
 2011-08-04 15:30:09 -07:00
Patrick Walton
4061ca2bbd rustc: Generate shapes 2011-08-04 10:46:10 -07:00
Tim Chevalier
7c34550931 Make _|_ type binopable 
But don't actually generate code that does the operation. That means
hoisting the check I added in my last commit from trans_compare
up into trans_eager_binop (don't generate any code if one operand
has type _|_ ).

Closes #777
 2011-08-02 18:06:46 -07:00
Michael Sullivan
f371482593 Consolidate environment building/loading between closure types. 2011-08-02 16:30:56 -07:00
Marijn Haverbeke
985c32ef4c Partially implement destructuring locals 
You can now say

    let {bcx, val} = some_result_returner();

Similar for loop variables. Assigning to such variables is not safe
yet. Function arguments also remain a TODO.
 2011-08-01 17:51:37 +02:00
Graydon Hoare
59c441a66a Encode, decode, and thread through typechecking all the param kinds, not just the counts. 2011-07-29 16:40:30 -07:00
Graydon Hoare
f3c05b9fae Turn on kind propagation for typarams. Annotate a bunch of typarams in rustc and libstd. 2011-07-29 12:58:52 -07:00
Marijn Haverbeke
c34d74315f Remove unreachable statements 2011-07-29 20:54:44 +02:00
Marijn Haverbeke
ae46c154f0 Make sure resources always have their drop glue called 
Even when their content does not contain pointers
 2011-07-29 12:53:58 +02:00
Graydon Hoare
3e63fdc4c9 Thread kinds into the type system. Don't quite activate yet, since it breaks stdlib and snapshot isn't ready to compile modified stdlib. 2011-07-28 13:29:39 -07:00
Eric Holk
a5fe66e706 Adding upcalls to to ref() and deref() tasks. This is the first step towards atomic reference counting of tasks. 2011-07-28 10:47:28 -07:00
Graydon Hoare
a11bb404a5 Further refinement to kind system lattice and type-kind rules; first successful caught kind error (prohibits copying a pinned resource, though trans already caught it later). 2011-07-27 21:23:54 -07:00
Michael Sullivan
d1298f768c Have bind support non-alias parametric non-bound arguments. 
This was previously disallowed by the typechecker and not properly handled
in trans. I removed the typechecker check (replacing it with a simpler
check that spawned functions don't have type params) and fixed trans.
Closes #756.
 2011-07-27 18:46:46 -07:00
Graydon Hoare
63f74f3771 Remove vestiges of "layers", insert skeletal do-nothing "kind" pass plus cached calculation of kind for each type. 2011-07-27 17:49:00 -07:00
Marijn Haverbeke
6e2a7bff7f Fix damage done by the pretty-printer 2011-07-27 15:54:33 +02:00
Marijn Haverbeke
df7f21db09 Reformat for new syntax 2011-07-27 15:54:33 +02:00
Michael Sullivan
ac948b4ccd Resolve and typecheck alias-environment-capturing blocks. 2011-07-26 12:30:14 -07:00
Marijn Haverbeke
2c1250780d Remove tuple support from the compiler 2011-07-26 15:19:56 +02:00
Marijn Haverbeke
aea537779e Remove all uses of tuples from the compiler and stdlib 2011-07-26 14:06:02 +02:00
Michael Sullivan
25a89e068d Rename the block type to be blk also. Sorry. 2011-07-25 14:18:07 -07:00
Marijn Haverbeke
e949aab10a Remove some rustboot-isms 
Closes #464
 2011-07-25 15:07:48 +02:00
Marijn Haverbeke
beab6ba8aa Add a pass that checks for unreachable alt arms 2011-07-25 13:52:59 +02:00
Marijn Haverbeke
b45d973552 Rewrite trans_cast, float->float and float->int casts 2011-07-22 13:10:59 +02:00
Michael Sullivan
f8bb5a3b58 Make ty::ctxt be boxed. 
Arguably we should leave ty_ctxt as a bare rec and just always work with
boxes of it. This winds up being simpler and prettier, though.
 2011-07-21 17:39:06 -07:00
Tim Chevalier
2261ddc717 Move ast_constr_to_constr from typeck to ty 
so that it can be used in places that import ty.
 2011-07-21 16:09:55 -07:00
Lindsey Kuper
075a094c1f Now with more type inference. 2011-07-21 15:46:03 -07:00
Patrick Walton
b49bdad499 rustc: Box raw types. Shaves about 5 seconds off compilation. 2011-07-21 11:43:52 -07:00
Patrick Walton
355f77ef87 rustc: Remove cnames for now 2011-07-20 19:13:55 -07:00
Patrick Walton
3ec3b02ed0 rustc: Strip cnames before generating glue to avoid duplicates 2011-07-20 19:04:45 -07:00
Tim Chevalier
41212792c6 Add missing case in tyencode for ty_constr 
Fixes the Windoze breakage, I hope.
 2011-07-19 20:16:03 -07:00
Tim Chevalier
bd4aeef78b Beginnings of support for constrained types 
Programs with constrained types now parse and typecheck, but
typestate doesn't check them specially, so the one relevant test
case so far is XFAILed.

Also rewrote all of the constraint-related data structures in the
process (again), for some reason. I got rid of a superfluous
data structure in the context that was mapping front-end constraints
to resolved constraints, instead handling constraints in the same
way in which everything else gets resolved.
 2011-07-19 18:57:28 -07:00
Michael Sullivan
f8c6d282f8 Add a pass that finds all of the free variables. 2011-07-19 12:01:14 -07:00
Patrick Walton
07a68df3b7 rustc: Skip null when translating string concatenation 2011-07-18 18:00:45 -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
Graydon Hoare
39151f2ad8 Prohibit trailing whitespace under 'tidy' script. Clean up all caught cases. 2011-07-13 15:44:09 -07:00
Patrick Walton
729fa81d3b Revert "rustc: Remove some exterior vectors from ty.rs" 
This reverts commit 01ea0647bb9773f44a8100c461af30046c3293aa.
 2011-07-12 18:47:26 -07:00
Patrick Walton
01ea0647bb rustc: Remove some exterior vectors from ty.rs 2011-07-12 18:21:50 -07:00
Tim Chevalier
36c4cb37ad Improve impossible-case handling in ty::get_element_type 2011-07-08 22:25:57 -07:00
Patrick Walton
1ff426b89f rustc: Use interior vectors for the union-find in rustc 2011-07-08 17:00:21 -07:00
Brian Anderson
7ae711fc03 Begin splitting metadata::decoder into decoding and crate search modules 2011-07-08 09:37:01 -07:00
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
Patrick Walton
e1b107d74e rustc: Remove all exterior vectors from the AST 2011-07-07 18:39:05 -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
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
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