353 Commits

Author SHA1 Message Date
Patrick Walton
1aaee20737 rustc: Accept commas to separate tag variants 2012-01-18 12:27:12 -08:00
Tim Chevalier
c3bc8fada8 Allow omission of the '.' after nullary tag patterns
This commit allows patterns like:

alt x { some(_) { ... } none { } }

without the '.' after none. The parser suspends judgment about
whether a bare ident is a tag or a new bound variable; instead,
the resolver disambiguates.

This means that any code after resolution that pattern-matches on
patterns needs to call pat_util::normalize_pat, which consults
an environment to do this disambiguation.

In addition, local variables are no longer allowed to shadow
tag names, so this required changing some code (e.g. renaming
variables named "mut", and renaming ast::sub to subtract).

The parser currently accepts patterns with and without the '.'.
Once the compiler and libraries are changed, it will no longer
accept the '.'.
2012-01-17 10:08:16 -08:00
Kevin Atkinson
e1c50c4410 Don't evaluate discriminator value constants when parsing.
Remove disr_val from ast::variant_ and always use ty::variant_info
when the value is needed.  Move what was done during parsing into
other passes, primary typeck.rs.  This move also correctly type checks
the disr. value expression; thus, fixing rustc --pretty=typed when
disr. values are used.
2012-01-16 11:19:33 +01:00
Brian Anderson
3466c9b4be rustc: Parse fn inner attributes. Closes #1506 2012-01-15 17:48:58 -08:00
Brian Anderson
17585cc47e rustc: Extract comman parts of view parsing 2012-01-15 16:25:31 -08:00
Brian Anderson
478134354d rustc: Rename the lexer's err message to fatal and make it fail 2012-01-13 22:07:55 -08:00
Brian Anderson
f4bd03b998 rustc: Replace the lexer's error handling with diagnostic impl 2012-01-13 22:07:55 -08:00
Brian Anderson
e90701c546 rustc: Replace parser's error handling with diagnostic impl 2012-01-13 22:07:55 -08:00
Brian Anderson
ced0aa13d3 rustc: Extract driver::diagnostic from syntax::codemap 2012-01-13 16:06:56 -08:00
Brian Anderson
f26266e03d rustc: Refactor codemap::emit_* functions
A codemap is only needed when we have a span so put them both into the option.
2012-01-13 15:52:03 -08:00
Niko Matsakis
8685a1f7c4 distinguish "any closure" and "stack closure" (block) 2012-01-13 09:31:40 -08:00
Niko Matsakis
47a534c197 make blocks fn& and fn stand for "any closure" 2012-01-13 06:36:31 -08:00
Niko Matsakis
455f8b0d45 deprecate fn exprs and the fn() type, preferring fn@ and native fn 2012-01-13 06:27:34 -08:00
Marijn Haverbeke
24102d50ad Obj system? What obj system?
Removes the obj system from the compiler.

Closes #1484
2012-01-13 11:51:29 +01:00
Marijn Haverbeke
7f62944559 Convert the objects used in the lexer and parser to records + impls 2012-01-13 11:50:53 +01:00
Niko Matsakis
8818f42b19 make parser disambiguate fn~ at top level correctly 2012-01-12 13:47:38 -08:00
Kevin Atkinson
44352df57c Cleanups to previous commits for issue #1393. 2012-01-12 09:55:48 +01:00
Marijn Haverbeke
34d7f05292 Major clean-up of std::io
Use ifaces instead of objs, stop wrapping everything in two (or three)
layers of no-value-added indirection, and remove some of the more
pointless/outdated idioms from the code.
2012-01-11 21:00:11 +01:00
Graydon Hoare
0e334c6839 Fold and re-evaluate expr in tag discriminant. 2012-01-10 15:59:57 -08:00
Kevin Atkinson
08abf8d37f Support explicit discriminant numbers on tag variants.
Addresses issue #1393.

For now disallow disr. values unless all variants use nullary
contractors (i.e. "enum-like").

Disr. values are now encoded in the crate metadata, but only when it
will differ from the inferred value based on the order.
2012-01-10 15:59:57 -08:00
Patrick Walton
ffdb7f97f8 rustc: Accept "enum" in addition to "tag" 2012-01-10 15:32:39 -08:00
Niko Matsakis
1592de0faf replace lambda with fn@ 2012-01-10 13:31:06 -08:00
Niko Matsakis
8b911587df rename sendfn to fn~, lambda to fn@ 2012-01-10 13:31:06 -08:00
Austin Seipp
070b1c8333 Remove support for 'when' in alt-patterns from parser
Issue #1396
2012-01-09 19:27:06 -08:00
Austin Seipp
a94b1ccacb Change all uses of 'when' in alt-patterns to 'if'
Issue #1396
2012-01-09 19:27:05 -08:00
Graydon Hoare
8387896dda Remove proto_sugar and 'lambda' as keyword, commit to fn@. 2012-01-09 16:12:48 -08:00
Austin Seipp
9211348989 Make the parser accept 'if' as an alternative to 'when' in alt patterns.
Also fix the pretty printer, making it output 'if' instead of 'when'.

Issue #1396
2012-01-09 10:50:33 -08:00
Niko Matsakis
f832edc369 require a non-semi expr acting as a stmt to have unit return type 2012-01-05 10:44:38 -08:00
Niko Matsakis
37ba5f3b32 make parser handle parenthesized block-sugar exprs properly 2012-01-05 10:44:38 -08:00
Marijn Haverbeke
60ae1590af Switch to new param kind bound syntax
And remove support for the old syntax
2012-01-05 15:50:02 +01:00
Marijn Haverbeke
516fbed230 Fix bad spans for ast::ty parsing
The span would be pointing after the actual text.
2012-01-05 11:09:19 +01:00
Niko Matsakis
72a3667eb3 Allow tail expressions even in no_value blocks. Type checker
will guarantee they have unit type.
2012-01-03 13:13:52 -08:00
Niko Matsakis
de383bcfed extend parser so that expressions that do not require semi-colons
to be statements are not considered expressions in the tail position
2012-01-03 13:13:51 -08:00
Niko Matsakis
9e1dc703d2 rewrite to put blk as 2nd arg 2012-01-03 13:13:51 -08:00
Niko Matsakis
e34abbacf6 minimal changes to permit fn blocks in expr 2012-01-03 13:13:51 -08:00
Marijn Haverbeke
506a6ec38b Make syntax for impls less magical
The trick of interpreting parameters to the iface type as parameters
to the impl was just too magical.

Issue #1227
2012-01-03 15:37:41 +01:00
Niko Matsakis
aa5382bb13 split proto from fn_decl, as not all fn_decls know the proto.
this will address the (crashing) new test added.
2011-12-29 20:29:28 -08:00
Graydon Hoare
36c55b20a8 Add support in lexer for utf8 identifiers. No NFKC logic in char yet. 2011-12-29 14:45:18 -08:00
Marijn Haverbeke
1ed6a27548 Change representation of type params to handle interface bounds
Issue #1227
2011-12-28 21:18:16 +01:00
Marijn Haverbeke
25e65239ad Check impls methods against the type of their iface. 2011-12-23 18:11:36 +01:00
Marijn Haverbeke
057617c665 Parse iface items and interface references in impl items.
The (temporary) syntax is

    iface seq<T> {
        fn len() -> uint;
        fn iter(f: block(T));
    }

    // The 'blah<T>' can be left of to default the name of the
    // impl to seq<T>. The 'of seq<T>' can be left off when
    // not implementing a named interface.
    impl blah<T> of seq<T> for [T] {
        fn len() -> uint { vec::len(self) }
        fn iter(f: block(T)) { for x in self { f(x); } }
    }
2011-12-23 18:09:25 +01:00
Marijn Haverbeke
970f5cc0e4 Make ast::ty_method hold a fn_decl, rather than duplicating its fields 2011-12-23 13:32:17 +01:00
Graydon Hoare
f0dfbe7b1b Register new snapshots, purge log_err and log_full in favour of log(...). 2011-12-22 17:53:53 -08:00
Graydon Hoare
389329ef1e Merge all 3 log syntaxes, tidy up residual misuses. 2011-12-22 16:14:00 -08:00
Graydon Hoare
dcd771cd48 Merge branch 'master' of github.com:graydon/rust 2011-12-22 14:50:52 -08:00
Graydon Hoare
8b580954fe Register snapshots and switch logging over to use of log_full or #error / #debug. 2011-12-22 14:42:52 -08:00
Marijn Haverbeke
0490c36143 Unify some data structures in syntax::ast that were doing the same thing
As a preparation to removing some duplication in typeck.
2011-12-22 20:18:56 +01:00
Graydon Hoare
47d27af228 Merge branch 'master' of github.com:graydon/rust 2011-12-22 09:30:03 -08:00
Marijn Haverbeke
e2e077c831 Remove trivial cast checker
I consider the added complexity not justified at this point, and it
interacts badly with the patches for issue #828. Feel free to discuss.
2011-12-22 15:04:00 +01:00
Graydon Hoare
047b02d5bc More flailing on log syntax due to call-expr ambiguity in previous attempt. 2011-12-21 18:05:08 -08:00