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2011-04-06Continued sketching out code for checking states against preconditions.Tim Chevalier-115/+215
It's still sketchy. I added a typestate annotation field to statements tagged stmt_decl or stmt_expr, because a stmt_decl statement has a typestate that's different from that of its child node. This necessitated trivial changes to a bunch of other files all over to the compiler. I also added a few small standard library functions, some of which I didn't actually end up using but which I thought might be useful anyway.
2011-04-06Remove reference to nonexistent ast.module from typestate_check.rs, stage1 ↵Graydon Hoare-1/+0
doesn't like it.
2011-04-05Brute force and ignorance workaround for tag-and-generic-obj; un-XFAIL it.Graydon Hoare-0/+3
2011-04-06More work on typestate. Sketched out code for computing and checking ↵Tim Chevalier-75/+482
prestates and poststates. Still a long ways away.
2011-04-05Last pieces of self-call support.Lindsey Kuper-5/+36
The last few pieces of the hack that lets us use trans.trans_call() to translate self-calls, plus a fix for the parser buy that was preventing self-call expressions from getting past parsing. test/run-pass/obj-self.rs works now (as in it actually prints "hi!" twice!).
2011-04-05Further on the path toward self-awareness.Lindsey Kuper-114/+87
Mostly: * Merciless refactoring of trans.rs so that trans_call can work for self-calls as well as other kinds of calls Also: * Various changes to go with having idents, rather than exprs, in expr_call_self AST nodes * Added missing case for SELF token to token.to_str()
2011-04-05FIx native wrapper generation to handle more arg types.Graydon Hoare-3/+23
2011-04-05Knocking out a quick fixme: pretty-printing exprs in error messages.Lindsey Kuper-2/+3
2011-04-04Make box prefix operator and box type carry mutability flag.Graydon Hoare-11/+10
2011-04-03Begin comparing vectors from the correct addressBrian Anderson-1/+1
Start at the first element instead of the address of the vector.
2011-04-02Change rust_vec to have a 16-byte header, to 16-byte-align vec-body data. ↵Graydon Hoare-0/+2
Major perf win.
2011-04-02Add FIXMEs around type handling in trans_if, trans_altBrian Anderson-0/+2
2011-04-02Join the results of alt arms so alt can be used as an expression.Brian Anderson-12/+18
Un-XFAIL expr-alt.rs.
2011-04-02Make join_results branch into the join block even when only one edge is live.Brian Anderson-6/+0
I don't don't totally understand the implications of this but it makes the behavior consistent for all live edges, which is going to make joining the arms of an alt expression work correctly.
2011-04-02Fail on non-exhaustive alt matchesBrian Anderson-3/+3
2011-04-02Terminate fail blocks by making their ends unreachable.Brian Anderson-3/+3
This will make implementing default alt arms simpler.
2011-04-01Write typarams for variants. Typecheck gets as far as ty.rs now.Graydon Hoare-2/+4
2011-04-01Encode ty_native ebml node for native types so typechecker has something to ↵Graydon Hoare-0/+1
work with.
2011-04-01Remove typestate_check reference to nonexistent ast.init node; rustc ↵Graydon Hoare-1/+0
compiling itself notices what rustboot did not :)
2011-04-01Re-enable typestate_check in build, was lost during merge. Sorry.Graydon Hoare-1/+1
2011-04-01Support for passing native types through metadata/creader.Graydon Hoare-1/+3
2011-04-01Guh. Actually commit the staged undo-of-indentation. Forgotten git staging ↵Graydon Hoare-56/+56
wins again.
2011-04-01Switch private linkage to local, re-indent trans.rs.Graydon Hoare-70/+70
2011-04-01rustc: Write symbols for native items into the crate metadataPatrick Walton-0/+1
2011-04-01rustc: Don't try to write symbols into the metadata for nullary tags. Puts ↵Patrick Walton-1/+3
out burning tinderbox.
2011-04-01rustc: Get tag variants from the crate metadataPatrick Walton-10/+28
2011-04-01rustc: Have tag_variants() return a new variant_info structure instead of an ↵Patrick Walton-37/+40
AST node
2011-04-01Started adding support for typestate checking.Tim Chevalier-197/+685
I added a new field to the ast "ann" type for typestate information. Currently, the field contains a record of a precondition bit vector and postcondition vector, but I tried to structure things so as to make it easy to change the representation of the typestate annotation type. I also had to add annotations to some syntactic forms that didn't have them before (fail, ret, be...), with all the boilerplate changes that that would imply. The main call to the typestate_check entry point is commented out and the actual pre-postcondition algorithm only has a few cases implemented, though the overall AST traversal is there. The rest of the typestate algorithm isn't implemented yet.
2011-04-01rustc: Remove useless call to tag_variant_with_id()Patrick Walton-1/+0
2011-04-01Cleanup typos and newlinesBrian Anderson-1/+1
2011-03-31Initialize the alloca used to retrieve boxed block results to null.Brian Anderson-11/+19
This allows blocks to be used in conditional constructs where the block may not ever execute: the drop glue will notice that it was never used and ignore it. Also, beef up the comments.
2011-03-31Only use allocas to hold expression results for boxed typesBrian Anderson-18/+3
2011-03-31Add more comments to trans_blockBrian Anderson-1/+2
2011-03-31Modify trans.rs to allow blocks to result in boxed valuesBrian Anderson-0/+59
2011-03-31rustc: Add a type annotation to tag itemsPatrick Walton-31/+29
2011-03-31rustc: Make tag_ty_params() and substitute_ty_params() take def ids instead ↵Patrick Walton-10/+6
of ty_params, and to check in external crates
2011-03-31rustc: Write out a path index as wellPatrick Walton-59/+117
2011-03-31More stuff to go with the new expr_call_self AST nodeLindsey Kuper-0/+68
2011-03-31More machinery for adding an expr_call_self AST node.Lindsey Kuper-1/+18
2011-03-31rustc: Index only the local part of definition IDsPatrick Walton-16/+21
2011-03-31rustc: Write out an index of definition info in crate metadataPatrick Walton-30/+100
2011-03-31rustc: Use the scaled index, not the raw index, if a vector has generic ↵Patrick Walton-2/+12
size. lib-vec.rs works now.
2011-03-31Rename incr_all_refcnts to take_ty, to match drop_tyBrian Anderson-4/+4
2011-03-31Restore scope block contexts to the translation of expr_block.Brian Anderson-2/+20
I removed this previously but that was wrong because it caused block expressions to not create a new scope.
2011-03-31Improve line comment positioningMarijn Haverbeke-40/+42
This involved making ast.variant spanned.
2011-03-31Add effect field to ast.ty_fn.Marijn Haverbeke-12/+13
Still not used, except by the pretty-printer.
2011-03-30rustc: Use the type cache to construct external item referencesPatrick Walton-19/+38
2011-03-30rustc: Thread an item-to-type mapping throughout the typechecking and ↵Patrick Walton-344/+353
translation phases
2011-03-30Ensure task stacks start out with a 16-byte aligned entry frame. Should make ↵Graydon Hoare-1/+2
OSX behave a bit better.
2011-03-29rustc: Add all items to the item table during translation. lib-vec now ↵Patrick Walton-1/+16
compiles, but asserts and then segfaults.