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Auto merge of #8080 - dswij:8019, r=giraffate
Fix FP on `question_mark` if returned object is not local Closes #8019 changelog: [`question_mark`] Fix FP when returned object is not local
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commit
f615ea474b
3 changed files with 39 additions and 1 deletions
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@ -159,7 +159,7 @@ impl QuestionMark {
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fn expression_returns_unmodified_err(cx: &LateContext<'_>, expr: &Expr<'_>, cond_expr: &Expr<'_>) -> bool {
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match peel_blocks_with_stmt(expr).kind {
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ExprKind::Ret(Some(ret_expr)) => Self::expression_returns_unmodified_err(cx, ret_expr, cond_expr),
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ExprKind::Path(_) => path_to_local(expr) == path_to_local(cond_expr),
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ExprKind::Path(_) => path_to_local(expr).is_some() && path_to_local(expr) == path_to_local(cond_expr),
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_ => false,
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}
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}
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@ -136,6 +136,24 @@ fn result_func(x: Result<i32, i32>) -> Result<i32, i32> {
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Ok(y)
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}
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// see issue #8019
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pub enum NotOption {
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None,
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First,
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AfterFirst,
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}
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fn obj(_: i32) -> Result<(), NotOption> {
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Err(NotOption::First)
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}
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fn f() -> NotOption {
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if obj(2).is_err() {
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return NotOption::None;
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}
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NotOption::First
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}
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fn main() {
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some_func(Some(42));
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some_func(None);
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@ -157,4 +175,5 @@ fn main() {
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func();
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let _ = result_func(Ok(42));
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let _ = f();
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}
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@ -168,6 +168,24 @@ fn result_func(x: Result<i32, i32>) -> Result<i32, i32> {
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Ok(y)
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}
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// see issue #8019
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pub enum NotOption {
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None,
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First,
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AfterFirst,
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}
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fn obj(_: i32) -> Result<(), NotOption> {
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Err(NotOption::First)
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}
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fn f() -> NotOption {
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if obj(2).is_err() {
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return NotOption::None;
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}
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NotOption::First
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}
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fn main() {
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some_func(Some(42));
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some_func(None);
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@ -189,4 +207,5 @@ fn main() {
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func();
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let _ = result_func(Ok(42));
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let _ = f();
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}
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