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avoid &format in error message code

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This commit is contained in:
Takayuki Maeda
2023-06-23 02:17:39 +09:00
parent 0c2c243342
commit c8960622a2
4 changed files with 7 additions and 9 deletions
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10
compiler/rustc_macros/src/diagnostics/error.rs
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@@ -54,7 +54,7 @@ fn path_to_string(path: &syn::Path) -> String {
/// Returns an error diagnostic on span `span` with msg `msg`.
#[must_use]
pub(crate) fn span_err(span: impl MultiSpan, msg: &str) -> Diagnostic {
pub(crate) fn span_err<T: Into<String>>(span: impl MultiSpan, msg: T) -> Diagnostic {
Diagnostic::spanned(span, Level::Error, msg)
}
@@ -77,11 +77,9 @@ pub(crate) fn invalid_attr(attr: &Attribute) -> Diagnostic {
let span = attr.span().unwrap();
let path = path_to_string(attr.path());
match attr.meta {
Meta::Path(_) => span_err(span, &format!("`#[{path}]` is not a valid attribute")),
Meta::NameValue(_) => {
span_err(span, &format!("`#[{path} = ...]` is not a valid attribute"))
}
Meta::List(_) => span_err(span, &format!("`#[{path}(...)]` is not a valid attribute")),
Meta::Path(_) => span_err(span, format!("`#[{path}]` is not a valid attribute")),
Meta::NameValue(_) => span_err(span, format!("`#[{path} = ...]` is not a valid attribute")),
Meta::List(_) => span_err(span, format!("`#[{path}(...)]` is not a valid attribute")),
}
}