Brian Anderson
4b30a06abe
Rename ast::proto_fn to ast::proto_shared
2011-10-20 18:23:48 -07:00
Brian Anderson
29ad3bdb10
Make fn denote a bare function. Convert fn to fn@ as needed
2011-10-20 18:23:48 -07:00
Brian Anderson
391e12124b
Tweak typecheck to enforce covariance on higher-order function arguments
2011-10-20 18:23:48 -07:00
Brian Anderson
342a400e79
Remove type coercion from fn to block
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fn is a proper subtype of block now
2011-10-20 18:23:48 -07:00
Brian Anderson
8136b92ee8
Give subtype relationships to function types
2011-10-20 18:23:48 -07:00
Brian Anderson
ed985b61d5
Bare functions can coerce to blocks
2011-10-20 18:23:48 -07:00
Brian Anderson
354bfc8292
Bare functions can coerce to shared closures
2011-10-20 18:23:48 -07:00
Brian Anderson
3bb020aaf8
Revert "Remove the environment argument from bare functions"
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This reverts commit 1b0f1f0b79fb29d28bcabb7a8468f4a5a95c0712.
2011-10-20 18:23:48 -07:00
Brian Anderson
0714bb5f7d
Fix the problem with check-fast randomly failing
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Trans has been assuming that tag node id's are unique across crates and they
are not so, depending on which way the wind is blowing, it would choose to use
a crate-local tag variant instead of the correct one from std.
No test case since I can't come up with a reliable one that compiles in a
reasonable amount of time.
2011-10-20 15:38:51 -07:00
Marijn Haverbeke
ef63f09dcd
Don't rely on main.ll anymore
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I'll remove the actual file after I register a snapshot.
Issue #992
2011-10-20 17:18:38 +02:00
Marijn Haverbeke
8124846b2c
Get rid of taskpointer-passing throughout the compiler
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Only intrinsics still take a dummy taskptr. We'll have to do some
makefile stunts to snapshot a version without taskptrs-in-intrinsics.
Issue #466
2011-10-20 14:22:17 +02:00
Marijn Haverbeke
457683c7fe
Do not pass taskpointers to "rust" native functions
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Issue #466
2011-10-20 14:22:17 +02:00
Marijn Haverbeke
6323a012bd
Remove taskptr argument from upcalls
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Issue #466
2011-10-20 13:15:21 +02:00
Marijn Haverbeke
e927df17f7
Remove spawn_wrap and main_wrap kludges
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This isn't needed now that our functions are cdecl (and was apparently
only still working by accident).
Issue #992
2011-10-20 13:15:09 +02:00
Brian Anderson
314c011d71
Immutable and mutable? are covariant on their inner types
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Whereas [mutable T] is invariant with respect to T, [T] and [mutable? T]
are covariant with respect to T.
2011-10-18 10:37:04 -07:00
Marijn Haverbeke
71a4a66135
Add a math module to the standard lib
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I need some rudimentary stdlib stuff for the tutorial.
Closes #1042
2011-10-18 13:54:35 +02:00
Marijn Haverbeke
d9d0782b5f
Don't try to build an LLVM switch on floats
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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
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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
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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
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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
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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
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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
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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
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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
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Issue #1038
2011-10-13 14:39:30 -07:00
Brian Anderson
89466ffd74
Rename rustc::middle::unsafeck to fn_usage
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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
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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.
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Closes #1034 . Closes #1035 .
2011-10-13 15:14:09 +02:00
Niko Matsakis
e8a0e592da
reimplement some of the unsafe stuff which got lost
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- 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
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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
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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
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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
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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
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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