prepare v1.4.24 release#4514
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calebcartwright merged 4 commits intorust-lang:rustfmt-1.4.24from Nov 6, 2020
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We no longer flatten a block that looks like this:
```rust
match val {
pat => { macro_call!() }
}
```
Currently, rust ignores trailing semicolons in macro expansion in
expression position (see rust-lang/rust#33953)
If this is changed, flattening a block with a macro call may break the
user's code - the trailing semicolon will no longer parse if the macro
call occurs immediately on the right-hand side of the match arm
(e.g. `pat => macro_call!()`)
calebcartwright
commented
Nov 6, 2020
Comment on lines
+304
to
+305
| && is_simple_block(context, block, Some(&expr.attrs)) | ||
| && !stmt_is_expr_mac(&block.stmts[0]) => |
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Apparently we haven't backported support for comments in arm guards to v1.x which is why this was removed in 7c24c1e
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Refs rust-lang/rust#78341, needed due to subsequent breaking changes being merged upstream (more detail in rust-lang/rust#78775)