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span: add span_extend_to_line helper

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Adds a simple helper function to the `SourceMap` for extending a `Span`
to encompass the entire line it is on - useful for suggestions where
removing a line is the suggested action.

Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood 2022-07-13 15:02:23 +01:00
parent 224aec213d
commit 97edb9f336
1 changed files with 5 additions and 0 deletions
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5
compiler/rustc_span/src/source_map.rs
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@ -718,6 +718,11 @@ pub fn span_extend_to_next_char(&self, sp: Span, c: char, accept_newlines: bool)
sp
}
/// Extends the given `Span` to contain the entire line it is on.
pub fn span_extend_to_line(&self, sp: Span) -> Span {
self.span_extend_to_prev_char(self.span_extend_to_next_char(sp, '\n', true), '\n', true)
}
/// Given a `Span`, tries to get a shorter span ending before the first occurrence of `char`
/// `c`.
pub fn span_until_char(&self, sp: Span, c: char) -> Span {