Commit Graph

132 Commits

Author SHA1 Message Date
Tim Chevalier
a63780afce Minor class-related tweaks to the AST 2012-02-07 12:15:59 -08:00
Marijn Haverbeke
a08e589390 Handle built-in typenames in the resolve pass, rather than in parser
Closes #1728

Comments out a section of debuginfo.rs. This code was already broken
(only being called when --xg was passed, and only working on trivial
programs).
2012-02-06 17:06:19 +01:00
Marijn Haverbeke
e0fa5cd2ed Self types for ifaces
This allows a 'Name:' to appear in front of an iface declaration's
name, which will cause 'Name' to refer to the self type (with the same
number of type parameters as the iface has) in the method signatures
of the iface. For example:

    iface F: functor<A> {
        fn fmap<B>(f: fn(A) -> B) -> F<B>;
    }

Issue #1718
2012-02-06 09:56:41 +01:00
Kevin Atkinson
1d855ebc51 Remove support for $(...) form of quasi-quotes, use #ast{...} instead. 2012-02-05 15:38:27 -08:00
Tim Chevalier
f3343b3571 Beginnings of front-end support for classes
Added class support to the parser, prettyprinter, fold, and visit.
(See Issue 1726.)

This is WIP -- the test case is xfailed, and attempting to compile
it will error out in resolve.
2012-02-03 22:47:35 -08:00
Graydon Hoare
8fc624bc08 Fix various drift issues in the qq branch. 2012-02-03 20:54:18 -07:00
Kevin Atkinson
3604f36938 Implement folding of ast::ty. 2012-02-03 20:54:17 -07:00
Kevin Atkinson
da74a7f9ca Make macro arg optional in syntax, again untested. 2012-02-03 20:41:48 -07:00
Kevin Atkinson
5ef53382ae Add support for parsing quasi-quotes, doesn't do anything useful yet. 2012-02-03 20:23:49 -07:00
Marijn Haverbeke
2dbaa05af8 Remove support for native types
Issue #1673
2012-02-01 12:23:13 +01:00
Paul Woolcock
6ba3d24355 Remove ternary operator
`expr_ternary`, `ternary_to_if`, and all parses & lexer definitions have
been removed.
2012-01-30 18:21:19 +01:00
Marijn Haverbeke
b3f06c7d54 Stop passing spans to middle::trans functions that don't need them
Removes a bunch of (eventually) unused arguments. Makes span passing to debuginfo
explicit, instead of relying on the (usually incorrect) spans held in the contexts.

Closes #1439
2012-01-27 13:20:36 +01:00
Brian Anderson
2999479a2d rustc: Allow attributes on enum variants. Closes #1663 2012-01-25 16:24:06 -08:00
Marijn Haverbeke
76aabbe99d Rename tag to enum throughout the compiler
This should reduce confusion of people trying to read the code.
2012-01-25 14:34:31 +01:00
Kevin Atkinson
20ab47fe49 Allow ast_fold_precursor to change the span.
This involved changing the prototype for the callbacks to thread the
span though.  A wrapper function, fold::wrap, can be used to wrap the
old style callbacks.
2012-01-23 17:37:15 -08:00
Tim Chevalier
5b028f527f Remove support for the '.' after a nullary tag in a pattern
(Commit also includes lots of changes to remove '.'s that a git
merge messed up, or else it was monkeys.)
2012-01-19 01:04:59 -08:00
Tim Chevalier
04a2887f87 Remove '.' after nullary tags in patterns
Does what it says on the tin.

The next commit will remove support for this syntax.
2012-01-18 23:17:34 -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
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
Kevin Atkinson
44352df57c Cleanups to previous commits for issue #1393. 2012-01-12 09:55:48 +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
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
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
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
eacb629442 Work around unwinding bug
See issue #1374
2011-12-22 20:38:09 +01:00
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
8d9e7deab5 Switch log_expr to carrying a full expr:u32 for level. Add log_full variant that parses that expr, prepare for snapshot. 2011-12-21 14:31:31 -08:00
Niko Matsakis
6a90140941 Make { || ... } sugar for any type of closure, inferred 2011-12-21 06:14:35 -08:00
Marijn Haverbeke
60acae4df7 Add type argument field to expr_path
This way, you can explicitly provide type parameters when calling a
generic method.

Issue #1227
2011-12-19 10:43:23 +01:00
Niko Matsakis
2833ca478c reorder args to the various vec, option fns so blk comes last 2011-12-16 07:17:23 -08:00
Marijn Haverbeke
d529757515 Make polymorphic impl methods work
Something will still have to be done to the AST to make it possible to
say `x.foo::<int>()`, since currently field access never allows type
parameters.

Issue #1227
2011-12-16 13:47:48 +01:00
Marijn Haverbeke
cff6bdd036 Change syntax for impl
Move the name of the bundle to the front, allow type parameters (not
handled yet), and add a 'for' keyword:

    impl utils for int {
        fn str() -> str { int::str(self) }
        fn times(f: block()) { ... }
    }
2011-12-16 11:46:57 +01:00
Marijn Haverbeke
7efef98901 Make uses of self in impls compile
Get rid of expr_self_call, introduces def_self. `self` is now,
syntactically, simply a variable. A method implicitly brings a `self`
binding into scope.

Issue #1227
2011-12-16 11:46:57 +01:00
Marijn Haverbeke
888bc80025 Parse and resolve implementations.
Issue #1227
2011-12-16 11:46:57 +01:00
Niko Matsakis
c28ada0368 first attempt, not happy with it 2011-12-14 14:32:18 -08:00
Graydon Hoare
fa9ad984fb Copy first batch of material from libstd to libcore. 2011-12-13 16:34:50 -08:00
Marijn Haverbeke
9a269a3aa8 Allow binding of nested patterns
See src/test/run-pass/nested-patterns.rs for some examples. The syntax is

    boundvar@subpattern

Which will match the subpattern as usual, but also bind boundvar to the
whole matched value.

Closes #838
2011-12-08 12:03:48 +01:00
Graydon Hoare
799690bea0 Remove stmt_crate_directive, it's vestigial and confusing. 2011-12-07 13:33:00 -08:00
Marijn Haverbeke
b40c6773c2 Box ast::path values
It seems inefficient to copy them around. Let's measure whether that's actually
> the case
2011-11-30 13:38:38 +01:00
Haitao Li
3e303af86b rustc: Add a path attribute for crate directives
The path information was an optional "filename" component of crate
directive AST. It is now replaced by an attribute with metadata named
"path".

With this commit, a directive

  mod foo = "foo.rs";

should be written as:

  #[path = "foo.rs"]
  mod foo;

Closes issue #906.
2011-11-24 15:31:18 -08:00
Marijn Haverbeke
e98286b594 Allow import directives in any block
Closes #49
2011-11-23 20:57:34 +01:00
Marijn Haverbeke
a8dd52ed36 Remove last traces of auth keyword
The reference now has an empty hole where the auth keyword used to be.
Changing the keyword table seems to require manually sorting the
keywords and putting them back into some kind of arcane interleaved
order. I'll open an issue to actually fix this.

Closes #1211
2011-11-23 11:02:27 +01:00
Haitao Li
5ca83553bc rustc: Remove abi from ast::native_mod 2011-11-21 13:49:52 +01:00
Niko Matsakis
adc79e2f44 remove compile-command from local variable blocks 2011-11-17 11:46:13 -08:00
Haitao Li
88f29aab27 Use attributes for native module ABI and link name
This patch changes how to specify ABI and link name of a native module.

Before:
  native "cdecl" mod llvm = "rustllvm" {...}

After:
  #[abi = "cdecl"]
  #[link_name = "rustllvm"]
  native mod llvm {...}

The old optional syntax for ABI and link name is no longer supported.

Fixes issue #547
2011-11-16 11:35:13 -08:00
Haitao Li
3b683f5205 rustc: Use link_name attribute for native function
Fixes issue #906
2011-11-16 23:45:07 +08:00
Brian Anderson
81a44ccacf Remove hack to break the AST fold cycle. Closes #998 2011-10-21 17:47:31 -07:00
Marijn Haverbeke
7114702496 Change the way block calls are parsed, mark them as block-calls.
This makes it possible to omit the semicolon after the block, and will
cause the pretty-printer to properly print such calls (if
pretty-printing of blocks wasn't so broken). Block calls (with the
block outside of the parentheses) can now only occur at statement
level, and their value can not be used. When calling a block-style
function that returns a useful value, the block must be put insde the
parentheses.

Issue #1054
2011-10-21 14:24:14 +02:00