Commit Graph

332 Commits

Author SHA1 Message Date
Tim Chevalier
f841e89443 Support unchecked blocks
This patch supports the syntax

    unchecked {
      ...
    }

    to disable purity checking within a block. Presumably it will only be
    used within a declared "pure fn". However, there is no checking that it
    doesn't occur elsewhere, and it would be harmless for it to do so.

    I went with Lindsey's suggestion for the syntax, but it's subject to
    change.

    This allows you to write code that uses predicates that call arbitrary
    Rust functions, but you must declare your intentions by wrapping it in
    an unchecked { ... } block. The test case run-pass/unchecked-predicates.rs
    demonstrates how to do that.
2011-08-25 18:28:23 -07:00
Tim Chevalier
da766791d3 hmm, this should have been in the last commit. Oops. 2011-08-24 14:29:08 -07:00
Tim Chevalier
c6155d1fd1 Change "pred" to "pure fn" (but still accept "pred")
This is part 1 of changing the "pred" keyword to "pure fn".
Right now, the compiler accepts both "pred" and "pure fn".
2011-08-24 14:21:37 -07:00
Graydon Hoare
c011f13144 Add kind-checking for assign-op, copy, ret, be, fail exprs. Fix caught kinding-violations in rustc and libstd. 2011-08-23 15:58:53 -07:00
Brian Anderson
7b12924813 Fix pretty-printing of istr literals. Issue #855 2011-08-23 11:09:38 -07:00
Brian Anderson
152cbaade7 Move functions from syntax::ast to syntax::ast_util
This leaves syntax::ast just defining the AST, which strikes me as somewhat
nicer
2011-08-22 10:44:04 -07:00
Marijn Haverbeke
7d08678b74 Implement pattern guards
The syntax is

    alt x {
        mypat where mycond { ... }
    }

The condition may refer to any of the variables bound by the pattern.
When a guard fails, pattern-matching continues with the next pattern.

Closes #857
2011-08-22 17:49:31 +02:00
Marijn Haverbeke
b24f978011 Drop arguments on the caller side, not the callee
This makes it easier for the caller to optimize the take/drop away for
temporary values, and opens up new possibilities for alias handling.

Breaks tail calls.
2011-08-22 10:16:09 +02:00
Brian Anderson
bc1b6b594b Stop parsing ~[] vector syntax 2011-08-20 11:04:00 -07:00
Brian Anderson
a7d837be74 Stop parsing .() indexes 2011-08-20 11:04:00 -07:00
Brian Anderson
518dc52f85 Reformat
This changes the indexing syntax from .() to [], the vector syntax from ~[] to
[] and the extension syntax from #fmt() to #fmt[]
2011-08-20 11:04:00 -07:00
Brian Anderson
7053b6010a Parse x[y] as indexes 2011-08-19 12:50:05 -07:00
Lindsey Kuper
325ea41a1e Getting rid of superfluous log statement. 2011-08-19 12:01:55 -07:00
Brian Anderson
4fc3618233 Change ast::ty_ivec, ty::ty_ivec to ty_vec 2011-08-18 14:11:06 -07:00
Brian Anderson
ec898244f7 Remove seq_kind from ast::expr_vec 2011-08-18 13:09:50 -07:00
Marijn Haverbeke
cd440d338e Remove or _-prefix all unused function arguments
This should make the compilation process a bit less noisy.
2011-08-18 10:02:13 +02:00
Brian Anderson
69d4838169 Stop parsing old-style vec types 2011-08-17 16:08:45 -07:00
Brian Anderson
cd54e77720 Allow multiple imports in a single statement
Like so: import foo::{bar, baz};

Issue #817
2011-08-17 11:04:56 -07:00
Brian Anderson
67cc5b9e34 Allow multiple exports in a single export statement. Issue #817 2011-08-17 11:04:05 -07:00
Erick Tryzelaar
70b009178c Remove support for expr[T] syntax. 2011-08-16 15:05:57 -07:00
Erick Tryzelaar
c92f5b34d5 Remove support for foo[T] declaration syntax. 2011-08-16 15:05:57 -07:00
Erick Tryzelaar
adb9cde399 Remove type parameter and vec/port/chan foo[T] syntax. 2011-08-16 15:05:57 -07:00
Erick Tryzelaar
af21a27002 Port the compiler to the expr foo::<T> syntax. 2011-08-16 15:05:56 -07:00
Erick Tryzelaar
4abc471390 Port the compiler to foo<T> decl syntax. 2011-08-16 15:05:56 -07:00
Erick Tryzelaar
e4a0f997fb Port the compiler to the typaram foo<T> syntax. 2011-08-16 15:05:56 -07:00
Erick Tryzelaar
014c6922e1 Change expr foo[T] syntax to foo::<T>.
This preserves the old syntax for now.
2011-08-16 14:16:14 -07:00
Erick Tryzelaar
9304b7ee59 Change declaration type parameter syntax to foo<T>. 2011-08-16 14:16:14 -07:00
Erick Tryzelaar
0107d6a81d Change type parameter syntax to foo<T>.
This preserves the old syntax for now.
2011-08-16 14:16:14 -07:00
Eric Holk
862bc521a1 Removing tasks, ports and chans from the compiler. 2011-08-16 10:59:49 -07:00
Brian Anderson
f05a91a0dc Rename std::ivec to std::vec 2011-08-16 10:36:19 -07:00
Brian Anderson
46658c4a9c Revert "Revert "Make [] and ~[] both construct ivecs""
This reverts commit 28bf190219.

Should work now that tests are all using ivecs
2011-08-16 10:29:09 -07:00
Eric Holk
cf2def46c1 Removed trans_comm.rs from the compiler. Updating aio/sio to work with the new chan and port system, started on a networking module for the standard library. 2011-08-16 09:36:29 -07:00
Lindsey Kuper
f91351aaf6 The wonky for...in... whitespace was bothering me. Sorry! 2011-08-15 22:19:50 -07:00
Michael Sullivan
9b50011aae Parse type inferred lambda-block expressions. 2011-08-15 15:48:10 -07:00
Graydon Hoare
814bf41d89 Add operator 'copy', translates as fall-through. 2011-08-15 15:44:41 -07:00
Paul Stansifer
ebb16e6a25 Use span stacks to track macro expansion for less troublesome error messages. 2011-08-15 15:35:28 -07:00
Paul Stansifer
c48036c0b7 Make spans into stacks (to store expansion backtraces). 2011-08-15 15:35:27 -07:00
Paul Stansifer
d2f9b15052 Rename a field (so that macros can mention it). 2011-08-15 15:35:27 -07:00
Patrick Walton
af61daf294 rustc: Parse and typecheck unique pointers 2011-08-15 14:38:48 -07:00
Patrick Walton
55c9842e7d rustc: Unbreak "3 as uint < 5u" 2011-08-15 12:06:10 -07:00
Patrick Walton
91d83f5547 rustc: Accept <T> for type parameters in type and item declarations 2011-08-15 11:01:31 -07:00
Eric Holk
be7325073a Removed spawn and task from the parser. Updated all the tests except for the benchmarks. 2011-08-15 09:26:52 -07:00
Marijn Haverbeke
3f127e397f Add tuple patterns 2011-08-15 13:20:16 +02:00
Marijn Haverbeke
1ee24d31e1 Make tuples constructable 2011-08-15 12:18:27 +02:00
Marijn Haverbeke
9538b00363 Tuple types back, not constructable yet 2011-08-15 11:40:38 +02:00
Brian Anderson
28bf190219 Revert "Make [] and ~[] both construct ivecs"
This reverts commit 60e1cead9b.

The check-fast driver can't work with this commit. Need to wait until main
taks ivecs
2011-08-14 12:54:18 -07:00
Tim Chevalier
1ba9af92bf Remove typestate workaround that's no longer necessary 2011-08-12 18:26:23 -07:00
Brian Anderson
60e1cead9b Make [] and ~[] both construct ivecs
It's no longer possible to create an exterior vec
2011-08-12 16:23:33 -07:00
Brian Anderson
7d05da96f7 Rename std::ioivec to std::io 2011-08-12 12:08:27 -07:00
Michael Sullivan
67e361a940 Introduce a ty_infer ast node and use it instead of option::t[ty].
This actually basically makes things worse, since we get less nice
type system guarentees but it will make doing type inferred blocks a
fair deal less painful. I'm not /really/ happy about this...
2011-08-10 20:18:07 -07:00
Graydon Hoare
511c053856 Remove dead keywords from parser. 2011-08-10 17:11:24 -07:00
Erick Tryzelaar
00ccd6ba42 Remove support for the ivec T[] syntax. 2011-08-09 15:53:26 -07:00
Erick Tryzelaar
8b15045224 Port the compiler to the ivec type [T] syntax. 2011-08-09 15:53:26 -07:00
Erick Tryzelaar
a37e00ed1f Change the ivec type syntax to [T].
This preserves the old syntax for now.
2011-08-09 11:29:36 -07:00
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
Patrick Walton
b079e1adbb rustc: Parse "inline". Also write it into metadata. 2011-08-05 13:59:27 -07:00
Patrick Walton
fd7ffd5ac2 rustc: Add inlineness to the fn decl instead 2011-08-05 11:46:43 -07:00
Patrick Walton
59e9b629c0 Revert "rustc: Introduce the concept of inline to the AST"
This reverts commit 9b9170f9fe.
2011-08-05 11:38:06 -07:00
Patrick Walton
9b9170f9fe rustc: Introduce the concept of inline to the AST 2011-08-05 11:33:48 -07:00
Brian Anderson
e4da7c5bee parse_crate_from_source_str takes a parse_sess, not codemap
This was causing problems when reading from stdin for subsequent passes that
needed to generate node ids.
2011-08-03 10:55:59 -07:00
Brian Anderson
35e9e02066 Use ioivec::read_whole_file_str in a few places 2011-08-02 10:39:14 -07:00
Brian Anderson
5f4b7e1ba7 Compiler accepts input from stdin when source file is called "-" 2011-08-02 10:39:09 -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
Marijn Haverbeke
c34d74315f Remove unreachable statements 2011-07-29 20:54:44 +02:00
Marijn Haverbeke
48cc11631c Parse anonymous objs in statement position
Closes #761
2011-07-29 15:01:06 +02:00
Marijn Haverbeke
b1d2a00b4a Remove support for obj dtors 2011-07-29 14:03:24 +02:00
Lindsey Kuper
b24da1c2e5 The names 'outer' and 'inner' make more sense than 'self' and 'with'.
(Also, some formatting and long-string cleanup.)
2011-07-28 14:54:32 -07:00
Paul Stansifer
86f337484e Change macro syntax to accept a single expr, not a sequence of exprs. 2011-07-28 12:12:08 -07:00
Graydon Hoare
acac6abc85 Parse, store and print type parameter kind constraints. 2011-07-28 17:22:59 +00:00
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
e3552da0e6 No longer allow 'case' keyword before patterns 2011-07-27 16:01:31 +02:00
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
Marijn Haverbeke
66c1ca857b Update the parser to accept the new syntax 2011-07-27 15:19:31 +02:00
Michael Sullivan
8c8fa79312 Add block and closure protos and parse/pp block and lambda exprs. 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
c0976ad70b Properly parse 'auto' for loop variable types 2011-07-26 14:53:01 +02:00
Marijn Haverbeke
aea537779e Remove all uses of tuples from the compiler and stdlib 2011-07-26 14:06:02 +02:00
Marijn Haverbeke
ce808bbc6f Make the pretty-printer output new-style syntax for local decls 2011-07-26 10:40:28 +02:00
Marijn Haverbeke
252b8ffe42 Add support for new-style local decls
let x = 5;
    let y: int = 10;
    // as soon as a typestate bug is fixed:
    let x: str = foo, y <- 20u;

'auto' and 'type-first let' will soon be dropped.
2011-07-26 10:27:26 +02:00
Graydon Hoare
5ab213a464 Correct input coordinate tracking on block-opening brace. 2011-07-25 17:35:40 -07:00
Michael Sullivan
25a89e068d Rename the block type to be blk also. Sorry. 2011-07-25 14:18:07 -07:00
Michael Sullivan
6bcdb48e35 Disallow block as a variable name in preparation for it becoming a keyword. 2011-07-25 13:42:38 -07:00
Marijn Haverbeke
19507787a9 Add support for bracey record types and literals
type foo = {mutable x: int, y: int};
    auto myfoo = {mutable x: 10, y: 20u};

The old syntax is also still supported.
2011-07-25 17:41:00 +02:00
Marijn Haverbeke
cce1b4667b Add look-ahead to parser object 2011-07-25 17:16:41 +02:00
Marijn Haverbeke
dca67f95cb Make the lexer slightly less stateful 2011-07-25 16:46:08 +02:00
Marijn Haverbeke
e949aab10a Remove some rustboot-isms
Closes #464
2011-07-25 15:07:48 +02:00
Marijn Haverbeke
f0be65cb50 Fix span information returned by parser::parse_seq
Its hi pos used to be the end of the token after the sequence. It now
properly reports the end of the closing token.
2011-07-25 14:04:37 +02:00
Paul Stansifer
e18d70fe12 Implement Macro By Example. 2011-07-22 16:53:43 -07:00
Marijn Haverbeke
b9b674abe7 Start adding support for multiple variable declarations per stmt
This adds parser support and most of the machinery for

    auto x = 10, y = 20;

However, the above still goes wrong somewhere in typestate, causing
the state checker to believe only the last variable in the list is
initialized after the statement.

Tim, if you have a moment, could you go over the changes to the tstate
code in this patch and see where I'm going wrong?

Multi-var-decls without the typestate extension

Add a loop
2011-07-22 17:51:26 +02:00
Lindsey Kuper
55acc737a8 Remove vestiges of typarams from anon objs. 2011-07-21 15:12:27 -07:00
Tim Chevalier
8a7f2e0fe5 Parse nil literals (including in patterns)
Closes #622.
2011-07-20 16:02:53 -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
Brian Anderson
c40d6265ce Support x86 stdcall convention
This allows rust to call the Win32 API
2011-07-18 13:56:15 -07:00
Josh Matthews
a411c865b2 Make clear the differentiation between char pos and byte pos in filemaps. Fix up error printing for files with multi-byte characters. 2011-07-16 15:57:24 -07:00
Patrick Walton
917afa4cc9 rustc: Remove a bunch of exterior vectors 2011-07-15 11:38:46 -07:00
Patrick Walton
be489ee9e2 rustc: Move much of metadata reading over to interior vectors 2011-07-14 12:00:48 -07:00
Graydon Hoare
39151f2ad8 Prohibit trailing whitespace under 'tidy' script. Clean up all caught cases. 2011-07-13 15:44:09 -07:00
Tim Chevalier
5e1a6dac44 Parse nullary ret correctly
ret is similar to fail: if not followed by an expression, it
should be parsed as a ret without an argument. The old version would
fail if ret was followed by a close paren (for example). Fixed it.

Closes #676.
2011-07-13 15:00:59 -07:00
Marijn Haverbeke
6cb5c0980a box patterns, expect for the trans part 2011-07-13 10:50:16 +02:00
Tim Chevalier
a8b1ea159c Make the parser add correct spans to view_items
Closes #650.
2011-07-11 19:12:02 -07:00
Paul Stansifer
9a0e85a920 Change "etc" syntax for record patterns from {a:b ...} to {a:b, _}. 2011-07-11 18:52:50 -07:00
Paul Stansifer
48dbee6b47 Add elipses, reorganize the macro components into their own AST node. 2011-07-11 18:52:50 -07:00
Paul Stansifer
425732311a Move macro expansion to a separate phase, change macro syntax, and add parse_sess to session. 2011-07-11 18:52:50 -07:00
Paul Stansifer
80cf4ecd3b Add nodes for embedding types and blocks in expressions for macros. 2011-07-11 18:52:10 -07:00
Brian Anderson
e45819ad70 Add parser::parse_crate_from_source_str
The fuzzer wants to be able to do stuff like this
2011-07-11 17:46:24 -07:00
Brian Anderson
9fe03b3c55 Pull lexer creation out of new_parser
This will allow custom lexers to be injected into the parser (for fuzzing)
2011-07-11 16:56:02 -07:00
Brian Anderson
08f8753d80 Pull file reading out of the lexer 2011-07-11 16:56:02 -07:00
Patrick Walton
05390b4b38 rustc: Implement explicit global scope resolution via leading "::"; add a test case 2011-07-11 16:02:16 -07:00
Marijn Haverbeke
7595fe5153 Implement record patterns
Closes #469.
2011-07-11 15:32:41 +02:00
Marijn Haverbeke
86ee3454a1 Implement or-patterns in case clauses
You can now say

    expr_move(?dst, ?src) | expr_assign(?dst, ?src) { ... }

to match both expr_move and expr_assign. The names, types, and number
of bound names have to match in all the patterns.

Closes #449.
2011-07-11 11:01:54 +02:00
Patrick Walton
e1b107d74e rustc: Remove all exterior vectors from the AST 2011-07-07 18:39:05 -07:00
Patrick Walton
0e2fff5337 rustc: Change lots of AST nodes to use interior vectors 2011-07-07 12:53:17 -07:00
Patrick Walton
2f29f9931d rustc: Make constraint args in the AST interior vectors 2011-07-06 16:19:19 -07:00
Patrick Walton
f164d7779a rustc: Move AST constraints to interior vectors 2011-07-06 16:12:39 -07:00
Patrick Walton
c83782f500 rustc: Migrate core AST types to interior vectors 2011-07-06 16:01:47 -07:00
Patrick Walton
aad0bcc8d5 rustc: Make AST tuple types use interior vectors 2011-07-06 15:53:47 -07:00
Patrick Walton
401b6362d7 rustc: Make meta items into interior vectors 2011-07-06 15:46:03 -07:00
Patrick Walton
479ce4d783 rustc: Move crate directives over to interior vectors 2011-07-06 15:15:06 -07:00
Patrick Walton
0226f56115 rustc: Convert attribute in the AST to interior vectors 2011-07-06 15:15:00 -07:00
Patrick Walton
7714cb297b rustc: Make AST paths use interior vectors 2011-07-06 15:14:52 -07:00
Lindsey Kuper
e30d2c82ae Simplify AST for expr_anon_obj. 2011-07-06 11:36:06 -07:00
Patrick Walton
bbdba21b1f rustc: Revert the conversion to interior vectors due to heap corruption 2011-07-06 11:26:26 -07:00
Patrick Walton
ec890fff23 Temp commit on the way to making meta_item into an interior vector 2011-07-06 11:09:08 -07:00
Patrick Walton
3f6c9f8d84 rustc: Move crate directives over to interior vectors 2011-07-06 11:09:08 -07:00
Patrick Walton
c927d97fa0 rustc: Convert attribute in the AST to interior vectors 2011-07-06 11:09:08 -07:00
Patrick Walton
1591955adf rustc: Make AST paths use interior vectors 2011-07-06 11:09:08 -07:00
Marijn Haverbeke
8e585e7008 Support paren-free and lightweight-case syntax
(The old syntax is still supported as well, for now.)

It is now possible to leave out the parens around if, while, and
do/while conditions, and around alt expressions. Cases in an alt block
can now leave off the case keyword and parens around the pattern.

After the next snapshot, we can start migrating our code to use the
new alt syntax, probably with a pretty-printer pass. The paren-free
syntax will remain optional (you may always parenthesize expressions),
but the old case syntax will no longer be supported in the future.
2011-07-06 17:50:52 +02:00
Marijn Haverbeke
7661c08496 Remove temporary stdlib placeholders, use actual stdlib functions
(Possible now that a snapshot took place.)
2011-07-06 16:46:17 +02:00
Brian Anderson
2cb129355b Change ast::meta_name_value to accept any literal, not just string
This isn't useful for much of anything yet, since metadata::encoder doesn't
know how to handle the non-string variants.

Issue #611
2011-07-05 17:25:18 -07:00
Brian Anderson
8499c77cee Parse attributes for native items. Closes #609 2011-07-05 12:43:44 -07:00
Marijn Haverbeke
6fd6fdea93 Move everything syntax-related to syntax/, break deps on rest of compiler
src/comp/syntax is currently just a sub-module of rustc, but it will,
in the near future, be its own crate. This includes:

 - The AST data structure
 - The parser
 - The pretty-printer
 - Visit, walk, and fold
 - The syntax extension system
 - Some utility stuff that should be in the stdlib*

*) Stdlib extensions currently require a snapshot before they can be
   used, and the win build is very broken right now. This is temporary
   and will be cleaned up when one of those problems goes away.

A lot of code was moved by this patch, mostly towards a more organized
layout. Some package paths did get longer, and I guess the new layout
will take some getting used to. Sorry about that!

Please try not to re-introduce any dependencies in syntax/ on any of
the other src/comp/ subdirs.
2011-07-05 15:57:21 +02:00