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Auto merge of #88134 - rylev:force-warn-improvements, r=nikomatsakis

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Force warn improvements

As part of stablization of the `--force-warn` option (#86516) I've made the following changes:
* Error when the `warnings` lint group is based to the `--force-warn` option
* Tests have been updated to make it easier to understand the semantics of `--force-warn`

r? `@nikomatsakis`
This commit is contained in:
bors 2021-08-21 15:51:50 +00:00
commit 99b73e81b3
32 changed files with 139 additions and 13 deletions
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11
compiler/rustc_lint/src/context.rs
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@ -332,7 +332,16 @@ impl LintStore {
crate_attrs: &[ast::Attribute],
) {
let (tool_name, lint_name_only) = parse_lint_and_tool_name(lint_name);
if lint_name_only == crate::WARNINGS.name_lower() && level == Level::ForceWarn {
return struct_span_err!(
sess,
DUMMY_SP,
E0602,
"`{}` lint group is not supported with ´--force-warn´",
crate::WARNINGS.name_lower()
)
.emit();
}
let db = match self.check_lint_name(sess, lint_name_only, tool_name, crate_attrs) {
CheckLintNameResult::Ok(_) => None,
CheckLintNameResult::Warning(ref msg, _) => Some(sess.struct_warn(msg)),