This commit removes the `-D warnings` flag being passed through the makefiles to
all crates to instead be a crate attribute. We want these attributes always
applied for all our standard builds, and this is more amenable to Cargo-based
builds as well.
Note that all `deny(warnings)` attributes are gated with a `cfg(stage0)`
attribute currently to match the same semantics we have today
This commit implements the stabilization of the custom hasher support intended
for 1.7 but left out due to some last-minute questions that needed some
decisions. A summary of the actions done in this PR are:
Stable
* `std:#️⃣:BuildHasher`
* `BuildHasher::Hasher`
* `BuildHasher::build_hasher`
* `std:#️⃣:BuildHasherDefault`
* `HashMap::with_hasher`
* `HashMap::with_capacity_and_hasher`
* `HashSet::with_hasher`
* `HashSet::with_capacity_and_hasher`
* `std::collections::hash_map::RandomState`
* `RandomState::new`
Deprecated
* `std::collections::hash_state`
* `std::collections::hash_state::HashState` - this trait was also moved into
`std::hash` with a reexport here to ensure that we can have a blanket impl to
prevent immediate breakage on nightly. Note that this is unstable in both
location.
* `HashMap::with_hash_state` - renamed
* `HashMap::with_capacity_and_hash_state` - renamed
* `HashSet::with_hash_state` - renamed
* `HashSet::with_capacity_and_hash_state` - renamed
Closes#27713
This splits the output of panics into two lines as proposed in #15239 and adds a
note about how to get a backtrace. Because the default panic message consists of
multiple lines now, this changes the test runner's failure output to not indent
the first line anymore.
Fixes#15239 and fixes#11704.
This commit implements the stabilization of the custom hasher support intended
for 1.7 but left out due to some last-minute questions that needed some
decisions. A summary of the actions done in this PR are:
Stable
* `std:#️⃣:BuildHasher`
* `BuildHasher::Hasher`
* `BuildHasher::build_hasher`
* `std:#️⃣:BuildHasherDefault`
* `HashMap::with_hasher`
* `HashMap::with_capacity_and_hasher`
* `HashSet::with_hasher`
* `HashSet::with_capacity_and_hasher`
* `std::collections::hash_map::RandomState`
* `RandomState::new`
Deprecated
* `std::collections::hash_state`
* `std::collections::hash_state::HashState` - this trait was also moved into
`std::hash` with a reexport here to ensure that we can have a blanket impl to
prevent immediate breakage on nightly. Note that this is unstable in both
location.
* `HashMap::with_hash_state` - renamed
* `HashMap::with_capacity_and_hash_state` - renamed
* `HashSet::with_hash_state` - renamed
* `HashSet::with_capacity_and_hash_state` - renamed
Closes#27713
On all platforms, reading from stdin where the actual stdin isn't present should
return 0 bytes as having been read rather than the entire buffer.
On Windows, handle the case where we're inheriting stdio handles but one of them
isn't present. Currently the behavior is to fail returning an I/O error but
instead this commit corrects it to detecting this situation and propagating the
non-set handle.
Closes#31167
The previous example did not do what its description said. In it panicked on integer overflow in debug mode, and went into an infinite loop in release mode (wrapping back to 0 after printing 254).
The previous example did not do what its description said. In it panicked on integer overflow in debug mode, and went into an infinite loop in release mode (wrapping back to 0 after printing 254).
This fixes#23880, a scoping bug in which items in a block are shadowed by local variables and type parameters that are in scope.
After this PR, an item in a block will shadow any local variables or type parameters above the item in the scope hierarchy. Items in a block will continue to be shadowed by local variables in the same block (even if the item is defined after the local variable).
This is a [breaking-change]. For example, the following code breaks:
```rust
fn foo() {
let mut f = 1;
{
fn f() {}
f += 1; // This will resolve to the function instead of the local variable
}
}
This fixes a bug in which items in a block are shadowed by local variables and type parameters that are in scope.
It is a [breaking-change]. For example, the following code breaks:
```rust
fn foo() {
let mut f = 1;
{
fn f() {}
f += 1; // This will now resolve to the function instead of the local variable
}
}
```
Any breakage can be fixed by renaming the item that is no longer shadowed.
On all platforms, reading from stdin where the actual stdin isn't present should
return 0 bytes as having been read rather than the entire buffer.
On Windows, handle the case where we're inheriting stdio handles but one of them
isn't present. Currently the behavior is to fail returning an I/O error but
instead this commit corrects it to detecting this situation and propagating the
non-set handle.
Closes#31167
This PR adds some minor error correction to the parser - if there is a missing ident, we recover and carry on. It also makes compilation more robust so that non-fatal errors (which is still most of them, unfortunately) in parsing do not cause us to abort compilation. The effect is that a program with a missing or incorrect ident can get all the way to type checking.
In 95d904625b output was accidentally moved
from STDERR to STDOUT.
This commit also changes the order of debug output. Previously, it was:
```
/* id 22: … */ {
…
}
DEBUG:rustc::middle::dataflow:
```
Now, it is:
```
DEBUG:rustc::middle::dataflow: /* id 22: … */ {
…
}
```
Register LLVM passes with the correct LLVM pass manager.
LLVM was upgraded to a new version in this commit:
f9d4149c29
which was part of this pull request:
https://github.com/rust-lang/rust/issues/26025
Consider the following two lines from that commit:
f9d4149c29 (diff-a3b24dbe2ea7c1981f9ac79f9745f40aL462)f9d4149c29 (diff-a3b24dbe2ea7c1981f9ac79f9745f40aL469)
The purpose of these lines is to register LLVM passes. Prior to the that
commit, the passes being handled were assumed to be ModulePasses (a
specific type of LLVM pass) since they were being added to a ModulePass
manager. After that commit, both lines were refactored (presumably in an
attempt to DRY out the code), but the ModulePasses were changed to be
registered to a FunctionPass manager. This change resulted in
ModulePasses being run, but a Function object was being passed as a
parameter to the pass instead of a Module, which resulted in
segmentation faults.
In this commit, I changed relevant sections of the code to check the
type of the passes being added and register them to the appropriate pass
manager.
Closes https://github.com/rust-lang/rust/issues/31067
In 95d904625b output was accidentally moved
from STDERR to STDOUT.
This commit also changes the order of debug output. Previously, it was:
```
/* id 22: … */ {
…
}
DEBUG:rustc::middle::dataflow:
```
Now, it is:
```
DEBUG:rustc::middle::dataflow: /* id 22: … */ {
…
}
```
LLVM was upgraded to a new version in this commit:
f9d4149c29
which was part of this pull request:
https://github.com/rust-lang/rust/issues/26025
Consider the following two lines from that commit:
f9d4149c29 (diff-a3b24dbe2ea7c1981f9ac79f9745f40aL462)f9d4149c29 (diff-a3b24dbe2ea7c1981f9ac79f9745f40aL469)
The purpose of these lines is to register LLVM passes. Prior to the that
commit, the passes being handled were assumed to be ModulePasses (a
specific type of LLVM pass) since they were being added to a ModulePass
manager. After that commit, both lines were refactored (presumably in an
attempt to DRY out the code), but the ModulePasses were changed to be
registered to a FunctionPass manager. This change resulted in
ModulePasses being run, but a Function object was being passed as a
parameter to the pass instead of a Module, which resulted in
segmentation faults.
In this commit, I changed relevant sections of the code to check the
type of the passes being added and register them to the appropriate pass
manager.
Closes https://github.com/rust-lang/rust/issues/31067
This commit removes the `-D warnings` flag being passed through the makefiles to
all crates to instead be a crate attribute. We want these attributes always
applied for all our standard builds, and this is more amenable to Cargo-based
builds as well.
Note that all `deny(warnings)` attributes are gated with a `cfg(stage0)`
attribute currently to match the same semantics we have today
