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This defers to .fatal and .span_fatal for errors (rather than `fail!`
which prints the ICE message). It also adds the span lookup when an id
doesn't correspond to a block, to show what it is pointing at.
It also makes the argument parser slightly looser, so that passing
`--pretty flowgraph` recognises the `flowgraph` part and suggests to use
an integer.
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The #[phase(syntax,link)] attribute on `extern crate std` needs to be an
outer attribute so it can pretty-print properly.
Also add `#![no_std]` and `#[feature(phase)]` so compiling the
pretty-printed source will work.
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Closes #6449
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When printing colored diagnostics, we need to reset the terminal before
emitting the newline, not after. Otherwise it gets line-buffered and the
color won't reset until the next line is printed or the compiler exits.
Normally this isn't a problem, but when running rustc in parallel with
other processes (e.g. `make -j4`) this can cause the color to leak
to other lines.
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This is an implementation of RFC 16. A module can now only be loaded if the
module declaring `mod name;` "owns" the current directory. A module is
considered as owning its directory if it meets one of the following criteria:
* It is the top-level crate file
* It is a `mod.rs` file
* It was loaded via `#[path]`
* It was loaded via `include!`
* The module was declared via an inline `mod foo { ... }` statement
For example, this directory structure is now invalid
// lib.rs
mod foo;
// foo.rs
mod bar;
// bar.rs;
fn bar() {}
With this change `foo.rs` must be renamed to `foo/mod.rs`, and `bar.rs` must be
renamed to `foo/bar.rs`. This makes it clear that `bar` is a submodule of `foo`,
and can only be accessed through `foo`.
RFC: 0016-module-file-system-hierarchy
Closes #14180
[breaking-change]
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Fix #13732.
This is a revised, much less hacky form of PR #13753
The changes here:
* add instrumentation to aid debugging of linkage errors,
* fine tune some things in the Makefile where we are telling binaries to use a host-oriented path for finding dynamic libraries, when it should be feeding the binaries a target-oriented path for dynamic libraries.
* pass along the current stage number to run-make tests, and
* skip certain tests when running atop stage1.
Fix #13746 as well.
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Change `bytes!()` to return
{
static BYTES: &'static [u8] = &[...];
BYTES
}
This gives it the `'static` lifetime, whereas before it had an rvalue
lifetime. Until recently this would have prevented assigning `bytes!()`
to a static, as in
static FOO: &'static [u8] = bytes!(1,2,3);
but #14183 fixed it so blocks are now allowed in constant expressions
(with restrictions).
Fixes #11641.
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This is an implementation of RFC 16. A module can now only be loaded if the
module declaring `mod name;` "owns" the current directory. A module is
considered as owning its directory if it meets one of the following criteria:
* It is the top-level crate file
* It is a `mod.rs` file
* It was loaded via `#[path]`
* It was loaded via `include!`
* The module was declared via an inline `mod foo { ... }` statement
For example, this directory structure is now invalid
// lib.rs
mod foo;
// foo.rs
mod bar;
// bar.rs;
fn bar() {}
With this change `foo.rs` must be renamed to `foo/mod.rs`, and `bar.rs` must be
renamed to `foo/bar.rs`. This makes it clear that `bar` is a submodule of `foo`,
and can only be accessed through `foo`.
RFC: 0016-module-file-system-hierarchy
Closes #14180
[breaking-change]
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r? @alexcrichton
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Had to make `struct Tm` in `libtime` not serializable for now.
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1. Wherever the `buf` field of a `Formatter` was used, the `Formatter` is used
instead.
2. The usage of `write_fmt` is minimized as much as possible, the `write!` macro
is preferred wherever possible.
3. Usage of `fmt::write` is minimized, favoring the `write!` macro instead.
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Currently, the format_args!() macro takes as its first argument an expression
which is the callee of an ExprCall. This means that if format_args!() is used
with calling a method a closure must be used. Consider this code, however:
format_args!(|args| { foo.writer.write_fmt(args) }, "{}", foo.field)
The closure borrows the entire `foo` structure, disallowing the later borrow of
`foo.field`. To preserve the semantics of the `write!` macro, it is also
impossible to borrow specifically the `writer` field of the `foo` structure
because it must be borrowed mutably, but the `foo` structure is not guaranteed
to be mutable itself.
This new macro is invoked like:
format_args_method!(foo.writer, write_fmt, "{}", foo.field)
This macro will generate an ExprMethodCall which allows the borrow checker to
understand that `writer` and `field` should be borrowed separately.
This macro is not strictly necessary, with DST or possibly UFCS other
workarounds could be used. For now, though, it looks like this is required to
implement the `write!` macro.
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Let's try this again!
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Add `EntryPat` and `NodePat` variants to ast_map, so that lookups for
id 1 in `let S{val: _x /* pat 2 */} /* pat 1 */ = ...` will actually
resolve to the pattern `S{ ... }`, rather than "unknown node", in a
function like `node_id_to_str`.
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This pull request fixes #12881.
Two caveats:
1. As explained in the commit message, this doesn't include a regression test. If this is unacceptable, please let me know, I'll see what I can do.
1. I'm getting some test failures on make check, all from debuginfo. I suspect this is due to #13680 and not related to my changes (I have GDB 7.7). This is the list of failed tests:
> [debuginfo-gdb] debuginfo/basic-types-globals.rs
> [debuginfo-gdb] debuginfo/basic-types-mut-globals.rs
> [debuginfo-gdb] debuginfo/basic-types.rs
> [debuginfo-gdb] debuginfo/borrowed-basic.rs
> [debuginfo-gdb] debuginfo/borrowed-managed-basic.rs
> [debuginfo-gdb] debuginfo/borrowed-struct.rs
> [debuginfo-gdb] debuginfo/borrowed-unique-basic.rs
> [debuginfo-gdb] debuginfo/box.rs
> [debuginfo-gdb] debuginfo/by-value-non-immediate-argument.rs
> [debuginfo-gdb] debuginfo/by-value-self-argument-in-trait-impl.rs
> [debuginfo-gdb] debuginfo/closure-in-generic-function.rs
> [debuginfo-gdb] debuginfo/evec-in-struct.rs
> [debuginfo-gdb] debuginfo/function-arg-initialization.rs
> [debuginfo-gdb] debuginfo/function-prologue-stepping-no-split-stack.rs
> [debuginfo-gdb] debuginfo/generic-function.rs
> [debuginfo-gdb] debuginfo/generic-functions-nested.rs
> [debuginfo-gdb] debuginfo/generic-method-on-generic-struct.rs
> [debuginfo-gdb] debuginfo/generic-static-method-on-struct-and-enum.rs
> [debuginfo-gdb] debuginfo/generic-struct.rs
> [debuginfo-gdb] debuginfo/lexical-scope-in-stack-closure.rs
> [debuginfo-gdb] debuginfo/lexical-scope-in-unique-closure.rs
> [debuginfo-gdb] debuginfo/method-on-generic-struct.rs
> [debuginfo-gdb] debuginfo/method-on-tuple-struct.rs
> [debuginfo-gdb] debuginfo/name-shadowing-and-scope-nesting.rs
> [debuginfo-gdb] debuginfo/recursive-struct.rs
> [debuginfo-gdb] debuginfo/self-in-generic-default-method.rs
> [debuginfo-gdb] debuginfo/shadowed-argument.rs
> [debuginfo-gdb] debuginfo/shadowed-variable.rs
> [debuginfo-gdb] debuginfo/simd.rs
> [debuginfo-gdb] debuginfo/simple-lexical-scope.rs
> [debuginfo-gdb] debuginfo/simple-struct.rs
> [debuginfo-gdb] debuginfo/simple-tuple.rs
> [debuginfo-gdb] debuginfo/static-method-on-struct-and-enum.rs
> [debuginfo-gdb] debuginfo/tuple-struct.rs
> [debuginfo-gdb] debuginfo/var-captured-in-nested-closure.rs
> [debuginfo-gdb] debuginfo/var-captured-in-sendable-closure.rs
> [debuginfo-gdb] debuginfo/var-captured-in-stack-closure.rs
I can provide the full output on request.
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This adds the flag --color, which allows the user to force coloring or
turn it off. The default behavior stays the same as before (colorize, if
output goes to tty).
Why this is beneficial is explained in issue #12881.
Please note that this commit doesn't include any regression tests. I
thought about how I'd write a test for this and it doesn't seem to be
worth the effort to me for a UI change like this.
Fixes #12881.
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drive-by: added some doc.
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When printing doc comments, always put a newline after them in a macro
invocation to ensure that a line-doc-comment doesn't consume remaining tokens on
the line.
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Now that the #[deriving] attribute is removed, the raw_pointers_deriving lint
was broken. This commit restores the lint by preserving lint attributes
across #[deriving] to the implementations and using #[automatically_derived] as
the trigger for activating the lint.
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Previously, literals "1i" were printed as "1". This fixes the
numeric-method-autoexport test for pretty printing.
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This uses the trick of replacing the << token with a < token to parse closure
types correctly.
Closes #13324
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Integers are always parsed as a u64 in libsyntax, but they're stored as i64. The
parser and pretty printer both printed an i64 instead of u64, sometimes
introducing an extra negative sign.
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* Added `// no-pretty-expanded` to pretty-print a test, but not run it through
the `expanded` variant.
* Removed #[deriving] and other expanded attributes after they are expanded
* Removed hacks around &str and &&str and friends (from both the parser and the
pretty printer).
* Un-ignored a bunch of tests
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Some `Expr` needs parentheses when printed. For example, without
parentheses, `ExprUnary(UnNeg, ExprBinary(BiAdd, ..))` becomes
`-lhs + rhs` which is wrong.
Those cases don't appear in ordinary code (since parentheses are
explicitly added) but they can appear in manually crafted ast by
extensions.
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This commit revisits the `cast` module in libcore and libstd, and scrutinizes
all functions inside of it. The result was to remove the `cast` module entirely,
folding all functionality into the `mem` module. Specifically, this is the fate
of each function in the `cast` module.
* transmute - This function was moved to `mem`, but it is now marked as
#[unstable]. This is due to planned changes to the `transmute`
function and how it can be invoked (see the #[unstable] comment).
For more information, see RFC 5 and #12898
* transmute_copy - This function was moved to `mem`, with clarification that is
is not an error to invoke it with T/U that are different
sizes, but rather that it is strongly discouraged. This
function is now #[stable]
* forget - This function was moved to `mem` and marked #[stable]
* bump_box_refcount - This function was removed due to the deprecation of
managed boxes as well as its questionable utility.
* transmute_mut - This function was previously deprecated, and removed as part
of this commit.
* transmute_mut_unsafe - This function doesn't serve much of a purpose when it
can be achieved with an `as` in safe code, so it was
removed.
* transmute_lifetime - This function was removed because it is likely a strong
indication that code is incorrect in the first place.
* transmute_mut_lifetime - This function was removed for the same reasons as
`transmute_lifetime`
* copy_lifetime - This function was moved to `mem`, but it is marked
`#[unstable]` now due to the likelihood of being removed in
the future if it is found to not be very useful.
* copy_mut_lifetime - This function was also moved to `mem`, but had the same
treatment as `copy_lifetime`.
* copy_lifetime_vec - This function was removed because it is not used today,
and its existence is not necessary with DST
(copy_lifetime will suffice).
In summary, the cast module was stripped down to these functions, and then the
functions were moved to the `mem` module.
transmute - #[unstable]
transmute_copy - #[stable]
forget - #[stable]
copy_lifetime - #[unstable]
copy_mut_lifetime - #[unstable]
[breaking-change]
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This code does not belong in libstd, and rather belongs in a dedicated crate. In
the future, the syntax::ext::format module should move to the fmt_macros crate
(hence the name of the crate), but for now the fmt_macros crate will only
contain the format string parser.
The entire fmt_macros crate is marked #[experimental] because it is not meant
for general consumption, only the format!() interface is officially supported,
not the internals.
This is a breaking change for anyone using the internals of std::fmt::parse.
Some of the flags have moved to std::fmt::rt, while the actual parsing support
has all moved to the fmt_macros library.
[breaking-change]
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This code does not belong in libstd, and rather belongs in a dedicated crate. In
the future, the syntax::ext::format module should move to the fmt_macros crate
(hence the name of the crate), but for now the fmt_macros crate will only
contain the format string parser.
The entire fmt_macros crate is marked #[experimental] because it is not meant
for general consumption, only the format!() interface is officially supported,
not the internals.
This is a breaking change for anyone using the internals of std::fmt::parse.
Some of the flags have moved to std::fmt::rt, while the actual parsing support
has all moved to the fmt_macros library.
[breaking-change]
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This commit brings the local_data api up to modern rust standards with a few key
improvements:
* All functionality is now exposed as a method on the keys themselves. Instead
of importing std::local_data, you now use "key.set()" and "key.get()".
* All closures have been removed in favor of RAII functionality. This means that
get() and get_mut() no long require closures, but rather return
Option<SmartPointer> where the smart pointer takes care of relinquishing the
borrow and also implements the necessary Deref traits
* The modify() function was removed to cut the local_data interface down to its
bare essentials (similarly to how RefCell removed set/get).
[breaking-change]
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This commit brings the local_data api up to modern rust standards with a few key
improvements:
* The `pop` and `set` methods have been combined into one method, `replace`
* The `get_mut` method has been removed. All interior mutability should be done
through `RefCell`.
* All functionality is now exposed as a method on the keys themselves. Instead
of importing std::local_data, you now use "key.replace()" and "key.get()".
* All closures have been removed in favor of RAII functionality. This means that
get() and get_mut() no long require closures, but rather return
Option<SmartPointer> where the smart pointer takes care of relinquishing the
borrow and also implements the necessary Deref traits
* The modify() function was removed to cut the local_data interface down to its
bare essentials (similarly to how RefCell removed set/get).
[breaking-change]
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Previously, the parser would not allow you to simultaneously implement a
function with a different abi as well as being unsafe at the same time. This
extends the parser to allow functions of the form:
unsafe extern fn foo() {
// ...
}
The closure type grammar was also changed to reflect this reversal, types
previously written as "extern unsafe fn()" must now be written as
"unsafe extern fn()". The parser currently has a hack which allows the old
style, but this will go away once a snapshot has landed.
Closes #10025
[breaking-change]
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This moves as much allocation as possible from teh std::str module into
core::str. This includes essentially all non-allocating functionality, mostly
iterators and slicing and such.
This primarily splits the Str trait into only having the as_slice() method,
adding a new StrAllocating trait to std::str which contains the relevant new
allocation methods. This is a breaking change if any of the methods of "trait
Str" were overriden. The old functionality can be restored by implementing both
the Str and StrAllocating traits.
[breaking-change]
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for `~str`/`~[]`.
Note that `~self` still remains, since I forgot to add support for
`Box<self>` before the snapshot.
r? @brson or @alexcrichton or whoever
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Lots of assorted things here and there, all the details are in the commits.
Closes #11712
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for `~str`/`~[]`.
Note that `~self` still remains, since I forgot to add support for
`Box<self>` before the snapshot.
How to update your code:
* Instead of `~EXPR`, you should write `box EXPR`.
* Instead of `~TYPE`, you should write `Box<Type>`.
* Instead of `~PATTERN`, you should write `box PATTERN`.
[breaking-change]
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Previously, the parser would not allow you to simultaneously implement a
function with a different abi as well as being unsafe at the same time. This
extends the parser to allow functions of the form:
unsafe extern fn foo() {
// ...
}
The closure type grammar was also changed to reflect this reversal, types
previously written as "extern unsafe fn()" must now be written as
"unsafe extern fn()". The parser currently has a hack which allows the old
style, but this will go away once a snapshot has landed.
Closes #10025
[breaking-change]
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Some cases were not correctly handled by this lint, for instance `let a = 42u8; a < 0` and `let a = 42u8; a > 255`.
It led to the discovery of two useless comparisons, which I removed.
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