It is like `rewrite_assign_rhs` but lets us force to put the rhs on the next
line if it uses multiple lines.
This lets us avoid duplicating logic for choosing whether to put stuff on the
same line or the next line.
Doctests were disabled globally because up until #2456, they were just
formatting examples which were not supposed to compile. Now that there
is one runnable doctest, I disabled the other ones individually (by
adding the ignore directive).
I also added some empty lines around the code blocks to avoid the
following warning and instead ignore the code blocks cleanly:
WARNING: ... Code block is not currently run as a test, but will in
future versions of rustdoc. Please ensure this code block is a runnable
test, or use the `ignore` directive.
See rust-lang/rust#28712 for further details.
Previously, cargo fmt invoked without parameters would
only format the crate in the current directory, even if
the crate was part of a workspace. This patch restores
that behavior.
`format_code_block` formats the given `code_snippet` by enclosing it inside
`fn main` block. Previously we did not add indentation to the `code_snippet`
before formatting it. This works fine as long as we can format the given
`code_snippet`, but when the code block has unformattable macro, they gets
unindented. This commit fixes it by adding proper indentation before formatting
the `code_snippet`.
For example, when formatting the following code block,
```rust
some_macro!(pub fn foo() {
println!("Don't unindent me!");
});
```
previously we enclosed it like this:
```rust
fn main() {
some_macro!(pub fn foo() {
println!("Don't unindent me!");
});
}
```
with this PR, we will enclose it like this:
```rust
fn main() {
some_macro!(pub fn foo() {
println!("Don't unindent me!");
});
}
```
Closes#2523.
This commit adds `overflow` module. This module provides two APIs.
`rewrite_with_parens` is basically the same as `rewrite_call_inner`.
`rewrite_with_angle_brackets` is used for rewriting generics and types.
For example, with the following config file, rustfmt will ignore `src/types.rs`,
`src/foo/bar.rs` and every file under `examples/` directory.
```toml
[ignore]
files = [
"src/types.rs",
"src/foo/bar.rs",
]
directories = [
"examples",
]
```
`ast::Arm` used to have `beginning_vert` field whose type is `Option<Span>`
and holds a span of the beginning `|` if available. This field is now removed.
This commit works around that.
Since we only need a `BytePos` of the `|`, the type of `beginning_vert` in
`ArmWrapper` is `Option<BytePos>`.
