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and obsolete `-` mode altogether (it *was* parsed as `+` mode).
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adjusting a few foreign functions that were declared with by-ref
mode. This also allows us to remove by-val mode in the near future.
With copy mode, though, we have to be careful because Rust will implicitly pass
somethings by pointer but this may not be the C ABI rules. For example, rust
will pass a struct Foo as a Foo*. So I added some code into the adapters to
fix this (though the C ABI rules may put the pointer back, oh well).
This patch also includes a lint mode for the use of by-ref mode
in foreign functions as the semantics of this have changed.
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r? @graydon
This removes `log` from the language. Because we can't quite implement it as a syntax extension (probably need globals at the least) it simply renames the keyword to `__log` and hides it behind macros.
After this the only way to log is with `debug!`, `info!`, etc. I figure that if there is demand for `log!` we can add it back later.
I am not sure that we ever agreed on this course of action, though I *think* there is consensus that `log` shouldn't be a statement.
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Currently the opts_present() function only checks to see if the option is
configured in the match, but doesn't actually check to see if the option
value has been set. This means that opt_present('h') may return false while
opts_present([~'h']) returns true.
Add a test case to catch this condition and fix opts_present() to check
the value before returning true.
Note, there is another API difference between these two functions that this
does not address. Currently if you pass a non-configured option to
opt_present() the program will fail!(), but opts_present() simply returns
false. If it is acceptable to standardize on the fail!() then opts_present()
should probably be implemented in terms of the opt_present() function.
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Currently the opts_present() function only checks to see if the option is
configured in the match, but doesn't actually check to see if the option
value has been set. This means that opt_present('h') may return false while
opts_present([~'h']) returns true.
Add a test case to catch this condition and fix opts_present() to check
the value before returning true.
Note, there is another API difference between these two functions that this
does not address. Currently if you pass a non-configured option to
opt_present() the program will fail!(), but opts_present() simply returns
false. If it is acceptable to standardize on the fail!() then opts_present()
should probably be implemented in terms of the opt_present() function.
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Previous year range of 2011-2013 was based on file creation date. The
check_license python script, however, only accepts copyrights starting
in 2012 or later.
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There were three issues effecting the example in the getopts rustdoc:
1. The blockquote was incorrectly formatted. Fixed by switching to using
an explicit markdown code section with ```.
2. The `fail fail_str(f)` would not compile. Fixed by using `fail!()` instead
of `fail`.
3. The line `matches.free[0]` produced a compile error about moving from
an immutable vector. Fix by using `copy`.
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rs=deexterning
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are currently inferred. New rules are coming that will require
them to be explicit. All add some explicit self declarations.
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inherent impls, not just those of the `impl Type` variety.
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A small step towards fixing #2827
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imports
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This allows `TreeMap`/`TreeSet` to fully express their requirements and reduces the comparisons from ~1.5 per level to 1 which really helps for string keys.
I also added `ReverseIter` to the prelude exports because I forgot when I originally added it.
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The fix is straight-forward, but there are several changes
while fixing the issue.
1) disallow `mut` keyword when making a new struct
In code base, there are following code,
```rust
struct Foo { mut a: int };
let a = Foo { mut a: 1 };
```
This is because of structural record, which is
deprecated corrently (see issue #3089) In structural
record, `mut` keyword should be allowd to control
mutability. But without structural record, we don't
need to allow `mut` keyword while constructing struct.
2) disallow structural records in parser level
This is related to 1). With structural records, there
is an ambiguity between empty block and empty struct
To solve the problem, I change parser to stop parsing
structural records. I think this is not a problem,
because structural records are not compiled already.
Misc. issues
There is an ambiguity between empty struct vs. empty match stmt.
with following code,
```rust
match x{} {}
```
Two interpretation is possible, which is listed blow
```rust
match (x{}) {} // matching with newly-constructed empty struct
(match x{}) {} // matching with empty enum(or struct) x
// and then empty block
```
It seems that there is no such code in rust code base, but
there is one test which uses empty match statement:
https://github.com/mozilla/rust/blob/incoming/src/test/run-pass/issue-3037.rs
All other cases could be distinguished with look-ahead,
but this can't be. One possible solution is wrapping with
parentheses when matching with an uninhabited type.
```rust
enum what { }
fn match_with_empty(x: what) -> ~str {
match (x) { //use parentheses to remove the ambiguity
}
}
```
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This changes various type_names to TypeNames and fixes the example for `tcp::accept` that was still using the old `match` syntax and `{|args| ...}` closures.
The `accept` example was fairly outdated. I was just going to stay away from all the IO things until the scheduler revamp lands, but `accept` is probably one of the obvious starting points for networking stuff for a learner, and I don't want to get in the way of anyone's enthusiasm.
Doesn't touch non-comment lines, so I hope I will get away without learning about unit tests. It doesn't seem like the test system is set up to extract tests from doc comments right now.
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