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| author | jrqc <jrqc01@hotmail.com> | 2020-08-14 09:25:26 +0300 |
|---|---|---|
| committer | jrqc <jrqc01@hotmail.com> | 2020-08-16 00:24:27 +0300 |
| commit | baa4cb1cddc3a8ce1f47c4006e236edf082ee858 (patch) | |
| tree | a377c88e8292df2de5a65c8e54bdaf8d6e91baa2 | |
| parent | 96efaee55240a3d3428ea5fe30c884a3227dad6e (diff) | |
| download | rust-baa4cb1cddc3a8ce1f47c4006e236edf082ee858.tar.gz rust-baa4cb1cddc3a8ce1f47c4006e236edf082ee858.zip | |
early return removed
| -rw-r--r-- | clippy_lints/src/returns.rs | 4 | ||||
| -rw-r--r-- | clippy_lints/src/unused_unit.rs | 3 | ||||
| -rw-r--r-- | tests/ui/needless_return.fixed | 30 | ||||
| -rw-r--r-- | tests/ui/needless_return.rs | 30 | ||||
| -rw-r--r-- | tests/ui/needless_return.stderr | 14 |
5 files changed, 40 insertions, 41 deletions
diff --git a/clippy_lints/src/returns.rs b/clippy_lints/src/returns.rs index 4d91f9be999..3c5541e64b4 100644 --- a/clippy_lints/src/returns.rs +++ b/clippy_lints/src/returns.rs @@ -160,10 +160,6 @@ fn check_final_expr<'tcx>( span: Option<Span>, replacement: RetReplacement, ) { - if last_statement_borrows(cx, expr) { - return; - } - match expr.kind { // simple return is always "bad" ExprKind::Ret(ref inner) => { diff --git a/clippy_lints/src/unused_unit.rs b/clippy_lints/src/unused_unit.rs index e322e402535..7548c6afa97 100644 --- a/clippy_lints/src/unused_unit.rs +++ b/clippy_lints/src/unused_unit.rs @@ -16,8 +16,7 @@ declare_clippy_lint! { /// less readable. Depending on formatting they can make a `break` or `return` /// statement look like a function call. /// - /// **Known problems:** The lint currently misses unit return types in types, - /// e.g., the `F` in `fn generic_unit<F: Fn() -> ()>(f: F) { .. }`. + /// **Known problems:** None. /// /// **Example:** /// ```rust diff --git a/tests/ui/needless_return.fixed b/tests/ui/needless_return.fixed index b795516f999..d849e093da7 100644 --- a/tests/ui/needless_return.fixed +++ b/tests/ui/needless_return.fixed @@ -69,24 +69,20 @@ fn test_void_match(x: u32) { } } -mod no_lint_if_stmt_borrows { - mod issue_5858 { - fn read_line() -> String { - use std::io::BufRead; - let stdin = ::std::io::stdin(); - return stdin.lock().lines().next().unwrap().unwrap(); - } +fn read_line() -> String { + use std::io::BufRead; + let stdin = ::std::io::stdin(); + return stdin.lock().lines().next().unwrap().unwrap(); +} - fn read_line2(value: bool) -> String { - if value { - use std::io::BufRead; - let stdin = ::std::io::stdin(); - let _a = stdin.lock().lines().next().unwrap().unwrap(); - return String::from("test"); - } else { - return String::new(); - } - } +fn borrows_but_not_last(value: bool) -> String { + if value { + use std::io::BufRead; + let stdin = ::std::io::stdin(); + let _a = stdin.lock().lines().next().unwrap().unwrap(); + String::from("test") + } else { + String::new() } } diff --git a/tests/ui/needless_return.rs b/tests/ui/needless_return.rs index 3547991935d..29f2bd1852a 100644 --- a/tests/ui/needless_return.rs +++ b/tests/ui/needless_return.rs @@ -69,24 +69,20 @@ fn test_void_match(x: u32) { } } -mod no_lint_if_stmt_borrows { - mod issue_5858 { - fn read_line() -> String { - use std::io::BufRead; - let stdin = ::std::io::stdin(); - return stdin.lock().lines().next().unwrap().unwrap(); - } +fn read_line() -> String { + use std::io::BufRead; + let stdin = ::std::io::stdin(); + return stdin.lock().lines().next().unwrap().unwrap(); +} - fn read_line2(value: bool) -> String { - if value { - use std::io::BufRead; - let stdin = ::std::io::stdin(); - let _a = stdin.lock().lines().next().unwrap().unwrap(); - return String::from("test"); - } else { - return String::new(); - } - } +fn borrows_but_not_last(value: bool) -> String { + if value { + use std::io::BufRead; + let stdin = ::std::io::stdin(); + let _a = stdin.lock().lines().next().unwrap().unwrap(); + return String::from("test"); + } else { + return String::new(); } } diff --git a/tests/ui/needless_return.stderr b/tests/ui/needless_return.stderr index c34eecbcbb6..f73c833a801 100644 --- a/tests/ui/needless_return.stderr +++ b/tests/ui/needless_return.stderr @@ -72,5 +72,17 @@ error: unneeded `return` statement LL | _ => return, | ^^^^^^ help: replace `return` with an empty block: `{}` -error: aborting due to 12 previous errors +error: unneeded `return` statement + --> $DIR/needless_return.rs:83:9 + | +LL | return String::from("test"); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return`: `String::from("test")` + +error: unneeded `return` statement + --> $DIR/needless_return.rs:85:9 + | +LL | return String::new(); + | ^^^^^^^^^^^^^^^^^^^^^ help: remove `return`: `String::new()` + +error: aborting due to 14 previous errors |
