At this point of the book, reader have likely use `cargo new --bin`,
likely 2 times, once if they are lazy. This remind them of the `cargo`
syntax.
I was myself unsure whether it was `cargo create`, `cargo new`, and
whether it would initialize in current working directory or needed a
target.
--
Otherwise thanks, I've been writing rust for a few hours, and likes it so far.
At this point of the book, reader have likely use `cargo new --bin`,
likely 2 times, once if they are lazy. This remind them of the `cargo`
syntax.
I was myself unsure whether it was `cargo create`, `cargo new`, and
whether it would initialize in current working directory or needed a
target.
Trait references are always invariant, so all uses of subtyping between
them are equivalent to using equality.
Moreover, the overlap check was previously performed twice per impl
pair, once in each direction. It is now performed only once, and
internally uses the equality check.
On glium, a crate that spends some time in coherence, this change sped
up coherence checking by a few percent (not very significant).
r? @nikomatsakis
Previously the file was not regenrated upon modification of `src/rustllvm` or others.
Now it will be rebuilt if `src/llvm` or `src/rustllvm` is touched.
Also added *.rs rule to 'clean' rule so that it is removed upon 'make
clean'.
Fixes#28614.
The `log` crate on crates.io already knows `TRACE`, but the internal liblog doesn't, which causes it to spew errors when a `TRACE` level is defined. I made `TRACE` behave like `DEBUG`.
It seems that OS X El Capitan does not pass DYLD_* environment variables to child processes anymore. See this link: https://forums.developer.apple.com/thread/9233
The causes a test in `src/libstd/process.rs' to fail when those environment variables are not found in the child process. This PR skips those variables similar to how the Windows envars that start with `=` are skipped.
Replace `TypeNsDef` and `ValueNsDef` with a more general type `NsDef`.
Define a newtype `NameBinding` for `Rc<RefCell<Option<NsDef>>>` and refactor `NameBindings` to be a `NameBinding` for each namespace.
Replace uses of `NameBindings` with `NameBinding` where only one binding is being used (in `NamespaceResult`, `Target,` etc).
Refactor away `resolve_definition_of_name_in_module` and `NameDefinition`, fixing issue #4952.
I'd like to have the message print out the index and length values like it does elsewhere, but I'm not sure how to do that without affecting perf here. Will `assert!(cond, "index out of bounds got {} but len is ", idx, len)` make things slower? It calls `panic_fmt` which is marked as cold but also calls `format_args!`, and I don't know if that allocates or does any heavy lifting.
cc @alexcrichton @Gankro
