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2515 Commits

Author SHA1 Message Date
Marijn Haverbeke
d9d0782b5f Don't try to build an LLVM switch on floats 
Closes #1046
 2011-10-18 13:54:35 +02:00
Brian Anderson
0f0fa26c72 Enforce variance rules for mutable types 2011-10-17 20:51:34 -07:00
Brian Anderson
48d351b21e Add a variance transform for calculation of recursive variance 2011-10-17 19:37:34 -07:00
Brian Anderson
d6613384fd Introduce covariance, contravariance and invariance to the type unifier 
This will be used to resolve some problems with mutable? covariance and also
to implement function subtyping
 2011-10-17 19:34:12 -07:00
Brian Anderson
b61578e1cd Don't unify from mutable? to immutable 
Immutable is supposed to be a subtype of mutable-huh.
 2011-10-17 16:36:49 -07:00
Brian Anderson
f7a825c614 Split record_var_binding into methods for expected and actual 
This allows unify to maintain the same subtype relationship between
expected and actual throughout unify, which we are going to need
for mutable? and for function types.
 2011-10-17 16:36:49 -07:00
Brian Anderson
1a64153b24 Correct two more analyses of mutable? as mutable 
I can't come up with test cases but this seems correct.
 2011-10-17 16:35:33 -07:00
Brian Anderson
4d9d889dbf Don't allow assignment to mutable-wha? 2011-10-17 16:35:33 -07:00
Marijn Haverbeke
0a01144797 Use trans_expr_save_in instead of trans_expr when appropriate 
This guards against passing a save_in destination to nil or bot-typed things.
 2011-10-14 11:27:16 +02:00
Marijn Haverbeke
06257d66e7 Don't crash when reporting an unresolved import in the nil scope 
Closes #1027
 2011-10-14 11:25:14 +02:00
Brian Anderson
3808a498cd Remove an unnecessary visitor from rustc::middle::fn_usage 2011-10-13 14:55:50 -07:00
Brian Anderson
acf9b83e71 Fix a use of visit in rustc::middle::fn_usage 
This was working by just skipping an AST node instead of doing the advertised
check. I can't find a test case for it, but this is more correct.
 2011-10-13 14:55:47 -07:00
Brian Anderson
bc4c3df1bf Don't allow the value of generic bare functions to be taken 
Issue #1038
 2011-10-13 14:39:30 -07:00
Brian Anderson
89466ffd74 Rename rustc::middle::unsafeck to fn_usage 
I'm going to add further checks unrelated to unsafe.

Issue #1038
 2011-10-13 12:25:57 -07:00
Marijn Haverbeke
6a7800508b Make trans_anon_obj properly thread its bcx 
Closes #893

Unfortunately, anon objs are still so broken as to be useless
(fields don't work).
 2011-10-13 18:04:09 +02:00
Marijn Haverbeke
e4c91fdf65 Properly fill single-variant zero-arg tag values. 
Closes #1034. Closes #1035.
 2011-10-13 15:14:09 +02:00
Niko Matsakis
e8a0e592da reimplement some of the unsafe stuff which got lost 
- blocks inherit unsafety
  - remove the --check-unsafe flag
  - add unsafe annotations where needed to get things to compile
 2011-10-12 16:33:07 -07:00
Niko Matsakis
215b1ab000 make compiler emit more than 1 error in the case of unsafe 2011-10-12 16:33:07 -07:00
Niko Matsakis
3b66806624 prohibit ptr deref unless in unsafe code 2011-10-12 16:33:07 -07:00
Niko Matsakis
a56698575c fix error msg 2011-10-12 16:33:07 -07:00
Niko Matsakis
81533ff737 add pass to check that unsafe fns cannot be used as values 2011-10-12 16:33:06 -07:00
Niko Matsakis
f2cd33df72 continue to annotate trans functions as unsafe where neccessary 2011-10-12 16:33:06 -07:00
Niko Matsakis
2094668949 continue to annotate trans functions as unsafe where neccessary 2011-10-12 16:33:06 -07:00
Niko Matsakis
d4d7eb069b add unsafe tags into various points in the translation chains 
and so forth
 2011-10-12 16:33:06 -07:00
Niko Matsakis
c1cefa52d0 Add unsafe tags to usage of LLVM funcs 2011-10-12 16:33:06 -07:00
Niko Matsakis
212707ce84 make native functions markable as unsafe and incorporate that 
into the type check
 2011-10-12 14:39:34 -07:00
Niko Matsakis
24b201fa48 skip test, remove whitespace 2011-10-12 14:39:34 -07:00
Niko Matsakis
b9a9559c91 correct lines over 78 chars 2011-10-12 14:39:34 -07:00
Niko Matsakis
f3c68e7238 enable unsafe checking but only with a flag --check-unsafe 2011-10-12 14:39:34 -07:00
Niko Matsakis
cbe8da0655 make treatment of unchecked/unsafe blocks more uniform 
also repair various errors in the parser related to such blocks.
rename checked_blk to default_blk to reflect the fact that it
inherits its purity from the surrounding context.
 2011-10-12 14:39:24 -07:00
Niko Matsakis
046ca827dd Add unsafe blocks, unsafe functions, and two rudimentary tests 
related to them
 2011-10-12 14:26:47 -07:00
Niko Matsakis
29584cc5ac Extend the unchecked block stuff to allow unsafe blocks as well. 2011-10-12 14:26:47 -07:00
Niko Matsakis
58b8e88356 expand purity to include unsafe 2011-10-12 14:26:47 -07:00
Brian Anderson
99f876e3a8 Make build_environment and trans_bind_thunk GEP bound arguments the same 
These functions both use GEP_tup_like to get at the arguments bound to the
environment, but they were starting from a different 'level' of the
environment-box structure. Frighteningly, this was leading to them having
different opinions of how the bound arguments were aligned in some cases.
 2011-10-12 12:11:07 -07:00
Marijn Haverbeke
306f7fb25f Simplify copying of uniques 
We can call take glue, rather than duplicating it inline.
 2011-10-12 11:05:20 +02:00
David Rajchenbach-Teller
8c9dd54ded [Renaming] str_to_float is now float::from_str, float_to_str is now float::to_str 2011-10-12 10:56:05 +02:00
Brian Anderson
1b0f1f0b79 Remove the environment argument from bare functions 
Issue #1022
 2011-10-11 10:51:10 -07:00
Brian Anderson
5b0f79b75a Don't allow bind to produce bare functions 
Issue #1022
 2011-10-11 10:51:10 -07:00
Brian Anderson
b277039325 Introduce ast::proto_bare 
Issue #1022
 2011-10-11 10:51:10 -07:00
David Rajchenbach-Teller
2ec85135e2 [Move] Moved str_to_float, float_to_str from compiler to lib 2011-10-11 16:41:34 +02:00
Marijn Haverbeke
33167f7dec Adjust function signatures to allow for vecs being immediate 
Some code was relying on vectors being implicitly by-reference (as
non-immediate value). This adds the necessary &&-sigils.

Closes #1021
 2011-10-10 16:01:51 +02:00
Marijn Haverbeke
b4bae8fea5 Make vectors and strings immediates again 
There's no good reason to force them to be spilled anymore. Some
pieces of trans become more elegant this way, and less stack allocs
and load/stores are needed.

Issue #1021
 2011-10-10 15:59:16 +02:00
Marijn Haverbeke
5c53959f20 Make bcx_tcx-style accessors return by reference 2011-10-10 12:25:58 +02:00
Marijn Haverbeke
00daeb485c Move type_is_immediate into ty.rs 2011-10-10 12:23:58 +02:00
Marijn Haverbeke
a35dbf3fd5 Don't spill immediates in order to drop them 
Issue #1012
 2011-10-10 12:20:28 +02:00
Marijn Haverbeke
fa1295343f Make free glue take a pointer to the heap part (box) 
This way, it can be used to drop values without first spilling them.

Issue #1012
 2011-10-10 10:25:32 +02:00
Marijn Haverbeke
aff536ec0e Fix bad float-type detection in trans 
Closes #1017
 2011-10-09 10:07:10 +02:00
Marijn Haverbeke
c7eee8fb05 Stop registering cleanups for types that don't need them 2011-10-07 14:46:23 +02:00
Marijn Haverbeke
31586339b1 Make it possible to have locals that don't live on the stack 
Local values that are not mutated, don't need to be cleaned up, and
are immediate, don't need to be spilled. (All immediate args, and
non-pointer immediate let locals.)
 2011-10-07 14:43:19 +02:00
Marijn Haverbeke
8db71530f5 Forbid passing dynamically-sized types by value 
Issue #1008
 2011-10-07 10:41:40 +02:00