Make it possible to correctly indent snippet_block snippets #5134
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flip1995
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flip1995
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Feb 4, 2020
| @@ -261,7 +261,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Attributes { | |||
| _ => {}, | |||
| } | |||
| } | |||
| let line_span = last_line_of_span(cx, attr.span); | |||
| let line_span = first_line_of_span(cx, attr.span); | |||
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This function never returned the last line of the span, but always the first line, so I renamed it accordingly.
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Feb 5, 2020
| if (zero!(i % 2) || nonzero!(i % 5)) && i % 3 != 0 { | ||
| continue; | ||
| } { | ||
| println!("Blabber"); |
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This seems to be a regression as it now wraps the removed else part in a block?
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Yeah, it changed a little bit, but I would keep it that way for two reasons:
- It's too hard to align this correctly after removing the block
- Suggesting it like this prevents a bug, that could be produced by the suggestion:
let y: u32 = 23;
if x {
continue;
} else {
let y: u32 = 42;
// ...
}
println!("{}", y); // outputs 23previous, the suggestion would change the output:
let y: u32 = 23; // best case: a warning for unused var is produced
if x {
continue;
}
let y: u32 = 42;
// ...
println!("{}", y); // outputs 42now the output stays the same:
let y: u32 = 23;
if x {
continue;
}
{
let y: u32 = 42;
// ...
}
println!("{}", y); //outputs 23
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☔ The latest upstream changes (presumably #5125) made this pull request unmergeable. Please resolve the merge conflicts. |
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r=me with rebase |
phansch
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Feb 6, 2020
|
@bors r=phansch |
|
📌 Commit e23881e has been approved by |
bors
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Feb 6, 2020
Make it possible to correctly indent snippet_block snippets
This adds a `indent_relative_to` arg to the `{snippet,expr}_block` functions. This makes it possible to keep the correct indentation of block like suggestions.
In addition, this makes the `trim_multiline` function private and adds a `indent_of` function, to get the indentation of the first line of a span.
The suggestion of `needless_continue` cannot be made auto applicable, since it would be also necessary to remove code following the linted expression. (Well, maybe it is possible, but I don't know how to do it. Expanding the suggestion span to the last expression, that should be removed didn't work)
changelog: Improve suggestions, when blocks of code are involved
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☀️ Test successful - checks-travis, status-appveyor |
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This adds a
indent_relative_toarg to the{snippet,expr}_blockfunctions. This makes it possible to keep the correct indentation of block like suggestions.In addition, this makes the
trim_multilinefunction private and adds aindent_offunction, to get the indentation of the first line of a span.The suggestion of
needless_continuecannot be made auto applicable, since it would be also necessary to remove code following the linted expression. (Well, maybe it is possible, but I don't know how to do it. Expanding the suggestion span to the last expression, that should be removed didn't work)changelog: Improve suggestions, when blocks of code are involved