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Allow meta item's value to exceed max width

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This commit is contained in:
topecongiro 2018-02-23 23:15:29 +09:00
parent b17c522650
commit 0d8636f229
1 changed files with 8 additions and 1 deletions
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9
rustfmt-core/src/attr.rs
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@ -228,7 +228,14 @@ impl Rewrite for ast::MetaItem {
let name = self.name.as_str();
// 3 = ` = `
let lit_shape = shape.shrink_left(name.len() + 3)?;
let value = rewrite_literal(context, literal, lit_shape)?;
// `rewrite_literal` returns `None` when `literal` exceeds max
// width. Since a literal is basically unformattable unless it
// is a string literal (and only if `format_strings` is set),
// we might be better off ignoring the fact that the attribute
// is longer than the max width and contiue on formatting.
// See #2479 for example.
let value = rewrite_literal(context, literal, lit_shape)
.unwrap_or_else(|| context.snippet(literal.span).to_owned());
format!("{} = {}", name, value)
}
})