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Proper indentation of multiline post-comments in a list #4572
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,163 @@ | ||
| // Basic tests (using vectors) - list multiline post-comment is indented on its own | ||
| fn main() { | ||
| let v = [ | ||
| "A", /* item A comment */ | ||
| "BBB", /* item B comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "EEEEE", /* item E comment */ | ||
| "FFF", /* item F comment */ | ||
| "GG", /* item G comment line 1 | ||
| * item G comment line 2 */ | ||
| ]; | ||
| } | ||
|
|
||
| fn main() { | ||
| let v = [ | ||
| "GG", /* item G comment line 1 | ||
| * item G comment line 2 */ | ||
| "AAAAA", /* item A comment */ | ||
| "BBB", /* item B comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "E", /* item E comment */ | ||
| "FFF", /* item F comment */ | ||
| ]; | ||
| } | ||
|
|
||
| // Tests for Struct | ||
| pub(crate) struct ListFormatting<'a> { | ||
| tactic: DefinitiveListTactic, | ||
| separator: &'a str, /* Comment */ | ||
| trailing_separator: SeparatorTactic, /* Comment */ | ||
| separator_place: SeparatorPlace, // Comment 1 | ||
| // Comment 2 | ||
| shape: Shape, /* Non-expressions, e.g., items, will have a new line at the end of the list. | ||
| * Important for comment styles. */ | ||
| ends_with_newline: bool, // Remove newlines between list elements for expressions. | ||
| preserve_newline: bool, // Nested import lists get some special handling for the "Mixed" list type | ||
| nested: bool, | ||
| // Whether comments should be visually aligned. | ||
| align_comments: bool, /* comment */ | ||
| config: &'a Config, | ||
| } | ||
|
|
||
| fn main() { | ||
| l = ListItem { | ||
| pre_comment, /* Comment */ | ||
| pre_comment_style, /* Multiline comment | ||
| * Line 2 */ | ||
| /* New line comment */ | ||
| item: if self.inner.peek().is_none() && self.leave_last { /* Comment */ | ||
| None | ||
| } else { | ||
| (self.get_item_string)(&item) | ||
| }, | ||
| post_comment, /* Comment */ | ||
| new_lines, /* Comment */ | ||
| } | ||
| } | ||
|
|
||
| // Test for Function parameters | ||
| pub(crate) fn new(shape: Shape, config: &'a Config) -> Self { | ||
| ListFormatting { | ||
| tactic: DefinitiveListTactic::Vertical, /* Comment */ | ||
| separator: ",", /* comment */ | ||
| trailing_separator: SeparatorTactic::Never, /* Multiline comment | ||
| * second comment line */ | ||
| separator_place: SeparatorPlace::Back, // A longggggggggggggggggggggggggggggggggggggggggggggggggggg comment | ||
| shape, | ||
| /* New line comment */ | ||
| ends_with_newline: true, /* Comment */ | ||
| preserve_newline: false, /* Comment */ | ||
| nested: false, /* Comment */ | ||
| align_comments: true, /* Another Multiline comment | ||
| * second comment line */ | ||
| config, /* Last comment */ | ||
| } | ||
| } | ||
|
|
||
| // Test for `where` | ||
| impl<'a, T, I, F1, F2, F3> Iterator for ListItems<'a, I, F1, F2, F3> | ||
| where | ||
| I: Iterator<Item = T>, /* Comment */ | ||
| F111111111: Fn(&T) -> BytePos, /* Comment */ | ||
| F2222222: Fn(&T) -> BytePos, /* Multiline comment | ||
| * Line 2 */ | ||
| F3: Fn(&T) -> Option<String>, /* Comment */ | ||
| {} | ||
|
|
||
| // Test for some types of lists | ||
| pub(crate) fn itemize_list<'a, T, I, F1, F2, F3>( | ||
| snippet_provider: &'a SnippetProvider, /* Comment */ | ||
| inner: I, /* Comment */ | ||
| terminator: &'a str, /* Multiline comment | ||
| * Line 2 */ | ||
| separator: &'a str, /* Comment */ | ||
| get_lo: F1, /* Comment */ | ||
| get_hi: F2, | ||
| get_item_string: F3, /* Comment */ | ||
| prev_span_end: BytePos, /* Multiline comment | ||
| * Line 2 */ | ||
| next_span_start: BytePos, /* Comment */ | ||
| leave_last: bool, | ||
| ) -> ListItems<'a, I, F1, F2, F3> | ||
| where | ||
| I: Iterator<Item = T>, /* Comment */ | ||
| F111111111: Fn(&T) -> BytePos, /* Multiline comment | ||
| * Line 2 */ | ||
| F2222222: Fn(&T) -> BytePos, | ||
| F3: Fn(&T) -> Option<String>, /* Comment */ | ||
| { | ||
| ListItems {/* Comment to ListItems */ | ||
| snippet_provider, /* Multiline comment | ||
| * Line 2 */ | ||
| inner: inner.peekable(), /* Another multiline comment | ||
| * another Line 2 */ | ||
| get_lo, /* Comment */ | ||
| get_hi, | ||
| get_item_string, | ||
| prev_span_end, /* Comment */ | ||
| next_span_start,/* Comment */ | ||
| terminator, | ||
| separator, /* Yet another multiline comment | ||
| * yet another Line 2 */ | ||
| leave_last,/* Comment */ | ||
| } | ||
| } | ||
|
|
||
|
|
||
| // Tests when comment in the same line of the item will exceed line width | ||
| fn main() { | ||
| let v = [ | ||
| "A-Longgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg", /* item A comment */ | ||
| "BBB", /* item B Longgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D-Longggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "EEEEE", /* item E comment */ | ||
| ]; | ||
| } | ||
|
|
||
| // Test for nested items | ||
| fn main() { | ||
| let v1 = [ | ||
| "GG", /* item G comment line 1 | ||
| * item G comment line 2 */ | ||
| "AAAAA", /* item A comment */ | ||
| [ | ||
| "BBB", /* item B comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "E", /* item E comment */ | ||
| ], | ||
| "FFF", /* item F comment */ | ||
| ]; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| // Basic tests (using vectors) - list multiline post-comment is indented on its own | ||
| fn main() { | ||
| let v = [ | ||
| "A", /* item A comment */ | ||
| "BBB", /* item B comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "EEEEE", /* item E comment */ | ||
| "FFF", /* item F comment */ | ||
| "GG", /* item G comment line 1 | ||
| * item G comment line 2 */ | ||
| ]; | ||
| } | ||
|
|
||
| fn main() { | ||
| let v = [ | ||
| "GG", /* item G comment line 1 | ||
| * item G comment line 2 */ | ||
| "AAAAA", /* item A comment */ | ||
| "BBB", /* item B comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "E", /* item E comment */ | ||
| "FFF", /* item F comment */ | ||
| ]; | ||
| } | ||
|
|
||
| // Tests for Struct | ||
| pub(crate) struct ListFormatting<'a> { | ||
| tactic: DefinitiveListTactic, | ||
| separator: &'a str, /* Comment */ | ||
| trailing_separator: SeparatorTactic, /* Comment */ | ||
| separator_place: SeparatorPlace, // Comment 1 | ||
| // Comment 2 | ||
| shape: Shape, /* Non-expressions, e.g., items, will have a new line at the end of the list. | ||
| * Important for comment styles. */ | ||
| ends_with_newline: bool, // Remove newlines between list elements for expressions. | ||
| preserve_newline: bool, // Nested import lists get some special handling for the "Mixed" list type | ||
| nested: bool, | ||
| // Whether comments should be visually aligned. | ||
| align_comments: bool, /* comment */ | ||
| config: &'a Config, | ||
| } | ||
|
|
||
| fn main() { | ||
| l = ListItem { | ||
| pre_comment, /* Comment */ | ||
| pre_comment_style, /* Multiline comment | ||
| * Line 2 */ | ||
| /* New line comment */ | ||
| item: if self.inner.peek().is_none() && self.leave_last { | ||
| /* Comment */ | ||
| None | ||
| } else { | ||
| (self.get_item_string)(&item) | ||
| }, | ||
| post_comment, /* Comment */ | ||
| new_lines, /* Comment */ | ||
| } | ||
| } | ||
|
|
||
| // Test for Function parameters | ||
| pub(crate) fn new(shape: Shape, config: &'a Config) -> Self { | ||
| ListFormatting { | ||
| tactic: DefinitiveListTactic::Vertical, /* Comment */ | ||
| separator: ",", /* comment */ | ||
| trailing_separator: SeparatorTactic::Never, /* Multiline comment | ||
| * second comment line */ | ||
| separator_place: SeparatorPlace::Back, // A longggggggggggggggggggggggggggggggggggggggggggggggggggg comment | ||
| shape, | ||
| /* New line comment */ | ||
| ends_with_newline: true, /* Comment */ | ||
| preserve_newline: false, /* Comment */ | ||
| nested: false, /* Comment */ | ||
| align_comments: true, /* Another Multiline comment | ||
| * second comment line */ | ||
| config, /* Last comment */ | ||
| } | ||
| } | ||
|
|
||
| // Test for `where` | ||
| impl<'a, T, I, F1, F2, F3> Iterator for ListItems<'a, I, F1, F2, F3> | ||
| where | ||
| I: Iterator<Item = T>, /* Comment */ | ||
| F111111111: Fn(&T) -> BytePos, /* Comment */ | ||
| F2222222: Fn(&T) -> BytePos, /* Multiline comment | ||
| * Line 2 */ | ||
| F3: Fn(&T) -> Option<String>, /* Comment */ | ||
| { | ||
| } | ||
|
|
||
| // Test for some types of lists | ||
| pub(crate) fn itemize_list<'a, T, I, F1, F2, F3>( | ||
| snippet_provider: &'a SnippetProvider, /* Comment */ | ||
| inner: I, /* Comment */ | ||
| terminator: &'a str, /* Multiline comment | ||
| * Line 2 */ | ||
| separator: &'a str, /* Comment */ | ||
| get_lo: F1, /* Comment */ | ||
| get_hi: F2, | ||
| get_item_string: F3, /* Comment */ | ||
| prev_span_end: BytePos, /* Multiline comment | ||
| * Line 2 */ | ||
| next_span_start: BytePos, /* Comment */ | ||
| leave_last: bool, | ||
| ) -> ListItems<'a, I, F1, F2, F3> | ||
| where | ||
| I: Iterator<Item = T>, /* Comment */ | ||
| F111111111: Fn(&T) -> BytePos, /* Multiline comment | ||
| * Line 2 */ | ||
| F2222222: Fn(&T) -> BytePos, | ||
| F3: Fn(&T) -> Option<String>, /* Comment */ | ||
| { | ||
| ListItems { | ||
| /* Comment to ListItems */ | ||
| snippet_provider, /* Multiline comment | ||
| * Line 2 */ | ||
| inner: inner.peekable(), /* Another multiline comment | ||
| * another Line 2 */ | ||
| get_lo, /* Comment */ | ||
| get_hi, | ||
| get_item_string, | ||
| prev_span_end, /* Comment */ | ||
| next_span_start, /* Comment */ | ||
| terminator, | ||
| separator, /* Yet another multiline comment | ||
| * yet another Line 2 */ | ||
| leave_last, /* Comment */ | ||
| } | ||
| } | ||
|
|
||
| // Tests when comment in the same line of the item will exceed line width | ||
| fn main() { | ||
| let v = [ | ||
| "A-Longgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg", /* item A comment */ | ||
| "BBB", /* item B Longgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D-Longggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "EEEEE", /* item E comment */ | ||
| ]; | ||
| } | ||
|
|
||
| // Test for nested items | ||
| fn main() { | ||
| let v1 = [ | ||
| "GG", /* item G comment line 1 | ||
| * item G comment line 2 */ | ||
| "AAAAA", /* item A comment */ | ||
| [ | ||
| "BBB", /* item B comment */ | ||
| "CCCCCC", /* item C comment line 1 | ||
| * item C comment line 2 */ | ||
| "D", /* item D comment line 1 | ||
| * item D comment line 2 */ | ||
| "E", /* item E comment */ | ||
| ], | ||
| "FFF", /* item F comment */ | ||
| ]; | ||
| } |
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kind of a bummer to have to do the multi vs. single line check multiple times, but at first glance I don't see a good way of avoiding that
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Tried to find solution, but one of the checks whether the comment is mutliline is done in a loop for identifying the group, and the other is done later when formatting each items. Adding
post_comment_is_multilnefield toListItemand initialize it inIterator for ListItemmay work, but I didn't try to do such change.