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Merged
merged 1 commit into from
Feb 7, 2024
Merged

Mark "unused binding" suggestion as maybe incorrect #120470

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4 changes: 2 additions & 2 deletions compiler/rustc_passes/src/errors.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1739,7 +1739,7 @@ pub struct UnusedVariableTryPrefix {

#[derive(Subdiagnostic)]
pub enum UnusedVariableSugg {
#[multipart_suggestion(passes_suggestion, applicability = "machine-applicable")]
#[multipart_suggestion(passes_suggestion, applicability = "maybe-incorrect")]
TryPrefixSugg {
#[suggestion_part(code = "_{name}")]
spans: Vec<Span>,
Expand Down Expand Up @@ -1778,7 +1778,7 @@ pub struct UnusedVarTryIgnore {
}

#[derive(Subdiagnostic)]
#[multipart_suggestion(passes_suggestion, applicability = "machine-applicable")]
#[multipart_suggestion(passes_suggestion, applicability = "maybe-incorrect")]
pub struct UnusedVarTryIgnoreSugg {
#[suggestion_part(code = "{name}: _")]
pub shorthands: Vec<Span>,
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2 changes: 1 addition & 1 deletion tests/ui/lint/future-incompat-json-test.stderr
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
{"$message_type":"future_incompat","future_incompat_report":[{"diagnostic":{"$message_type":"diagnostic","message":"unused variable: `x`","code":{"code":"unused_variables","explanation":null},"level":"warning","spans":[{"file_name":"$DIR/future-incompat-json-test.rs","byte_start":338,"byte_end":339,"line_start":9,"line_end":9,"column_start":9,"column_end":10,"is_primary":true,"text":[{"text":" let x = 1;","highlight_start":9,"highlight_end":10}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"`-A unused-variables` implied by `-A unused`","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"to override `-A unused` add `#[allow(unused_variables)]`","code":null,"level":"help","spans":[],"children":[],"rendered":null},{"message":"if this is intentional, prefix it with an underscore","code":null,"level":"help","spans":[{"file_name":"$DIR/future-incompat-json-test.rs","byte_start":338,"byte_end":339,"line_start":9,"line_end":9,"column_start":9,"column_end":10,"is_primary":true,"text":[{"text":" let x = 1;","highlight_start":9,"highlight_end":10}],"label":null,"suggested_replacement":"_x","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"warning: unused variable: `x`
{"$message_type":"future_incompat","future_incompat_report":[{"diagnostic":{"$message_type":"diagnostic","message":"unused variable: `x`","code":{"code":"unused_variables","explanation":null},"level":"warning","spans":[{"file_name":"$DIR/future-incompat-json-test.rs","byte_start":338,"byte_end":339,"line_start":9,"line_end":9,"column_start":9,"column_end":10,"is_primary":true,"text":[{"text":" let x = 1;","highlight_start":9,"highlight_end":10}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"`-A unused-variables` implied by `-A unused`","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"to override `-A unused` add `#[allow(unused_variables)]`","code":null,"level":"help","spans":[],"children":[],"rendered":null},{"message":"if this is intentional, prefix it with an underscore","code":null,"level":"help","spans":[{"file_name":"$DIR/future-incompat-json-test.rs","byte_start":338,"byte_end":339,"line_start":9,"line_end":9,"column_start":9,"column_end":10,"is_primary":true,"text":[{"text":" let x = 1;","highlight_start":9,"highlight_end":10}],"label":null,"suggested_replacement":"_x","suggestion_applicability":"MaybeIncorrect","expansion":null}],"children":[],"rendered":null}],"rendered":"warning: unused variable: `x`
--> $DIR/future-incompat-json-test.rs:9:9
|
LL | let x = 1;
Expand Down