diff options
Diffstat (limited to 'src/test/ui/closures/2229_closure_analysis/match')
16 files changed, 910 insertions, 0 deletions
diff --git a/src/test/ui/closures/2229_closure_analysis/match/auxiliary/match_non_exhaustive_lib.rs b/src/test/ui/closures/2229_closure_analysis/match/auxiliary/match_non_exhaustive_lib.rs new file mode 100644 index 000000000..4060c4093 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/auxiliary/match_non_exhaustive_lib.rs @@ -0,0 +1,10 @@ +#[non_exhaustive] +pub enum E1 {} + +#[non_exhaustive] +pub enum E2 { A, B } + +#[non_exhaustive] +pub enum E3 { C } + +pub enum E4 { D } diff --git a/src/test/ui/closures/2229_closure_analysis/match/issue-87097.rs b/src/test/ui/closures/2229_closure_analysis/match/issue-87097.rs new file mode 100644 index 000000000..815fc0a71 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/issue-87097.rs @@ -0,0 +1,35 @@ +// run-pass +// edition:2021 + +enum Variant { + A, + B, //~ WARNING: variant `B` is never constructed +} + +struct A { + field: Variant, +} + +fn discriminant_is_a_ref() { + let here = A { field: Variant::A }; + let out_ref = &here.field; + + || match out_ref { //~ WARNING: unused closure that must be used + Variant::A => (), + Variant::B => (), + }; +} + +fn discriminant_is_a_field() { + let here = A { field: Variant::A }; + + || match here.field { //~ WARNING: unused closure that must be used + Variant::A => (), + Variant::B => (), + }; +} + +fn main() { + discriminant_is_a_ref(); + discriminant_is_a_field(); +} diff --git a/src/test/ui/closures/2229_closure_analysis/match/issue-87097.stderr b/src/test/ui/closures/2229_closure_analysis/match/issue-87097.stderr new file mode 100644 index 000000000..2a49ed4b5 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/issue-87097.stderr @@ -0,0 +1,36 @@ +warning: variant `B` is never constructed + --> $DIR/issue-87097.rs:6:5 + | +LL | enum Variant { + | ------- variant in this enum +LL | A, +LL | B, + | ^ + | + = note: `#[warn(dead_code)]` on by default + +warning: unused closure that must be used + --> $DIR/issue-87097.rs:17:5 + | +LL | / || match out_ref { +LL | | Variant::A => (), +LL | | Variant::B => (), +LL | | }; + | |______^ + | + = note: `#[warn(unused_must_use)]` on by default + = note: closures are lazy and do nothing unless called + +warning: unused closure that must be used + --> $DIR/issue-87097.rs:26:5 + | +LL | / || match here.field { +LL | | Variant::A => (), +LL | | Variant::B => (), +LL | | }; + | |______^ + | + = note: closures are lazy and do nothing unless called + +warning: 3 warnings emitted + diff --git a/src/test/ui/closures/2229_closure_analysis/match/issue-87426.rs b/src/test/ui/closures/2229_closure_analysis/match/issue-87426.rs new file mode 100644 index 000000000..74506979a --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/issue-87426.rs @@ -0,0 +1,14 @@ +// run-pass +// edition:2021 + +pub fn foo() { + let ref_x_ck = 123; + let _y = || match ref_x_ck { + 2_000_000..=3_999_999 => { println!("A")} + _ => { println!("B")} + }; +} + +fn main() { + foo(); +} diff --git a/src/test/ui/closures/2229_closure_analysis/match/issue-87988.rs b/src/test/ui/closures/2229_closure_analysis/match/issue-87988.rs new file mode 100644 index 000000000..27e7fabf1 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/issue-87988.rs @@ -0,0 +1,19 @@ +// run-pass +// edition:2021 + +const LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED: i32 = 0x01; +const LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT: i32 = 0x02; + +pub fn hotplug_callback(event: i32) { + let _ = || { + match event { + LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED => (), + LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT => (), + _ => (), + }; + }; +} + +fn main() { + hotplug_callback(1); +} diff --git a/src/test/ui/closures/2229_closure_analysis/match/issue-88331.rs b/src/test/ui/closures/2229_closure_analysis/match/issue-88331.rs new file mode 100644 index 000000000..0a6d71c68 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/issue-88331.rs @@ -0,0 +1,33 @@ +// edition:2021 + +#[derive(Copy, Clone, PartialEq, Eq)] +pub struct Opcode(pub u8); + +impl Opcode { + pub const OP1: Opcode = Opcode(0x1); +} + +pub fn example1(msg_type: Opcode) -> impl FnMut(&[u8]) { + move |i| match msg_type { + //~^ ERROR: non-exhaustive patterns: `Opcode(0_u8)` and `Opcode(2_u8..=u8::MAX)` not covered + Opcode::OP1 => unimplemented!(), + } +} + +#[derive(Copy, Clone, PartialEq, Eq)] +pub struct Opcode2(Opcode); + +impl Opcode2 { + pub const OP2: Opcode2 = Opcode2(Opcode(0x1)); +} + + +pub fn example2(msg_type: Opcode2) -> impl FnMut(&[u8]) { + + move |i| match msg_type { + //~^ ERROR: non-exhaustive patterns: `Opcode2(Opcode(0_u8))` and `Opcode2(Opcode(2_u8..=u8::MAX))` not covered + Opcode2::OP2=> unimplemented!(), + } +} + +fn main() {} diff --git a/src/test/ui/closures/2229_closure_analysis/match/issue-88331.stderr b/src/test/ui/closures/2229_closure_analysis/match/issue-88331.stderr new file mode 100644 index 000000000..7e22defa9 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/issue-88331.stderr @@ -0,0 +1,39 @@ +error[E0004]: non-exhaustive patterns: `Opcode(0_u8)` and `Opcode(2_u8..=u8::MAX)` not covered + --> $DIR/issue-88331.rs:11:20 + | +LL | move |i| match msg_type { + | ^^^^^^^^ patterns `Opcode(0_u8)` and `Opcode(2_u8..=u8::MAX)` not covered + | +note: `Opcode` defined here + --> $DIR/issue-88331.rs:4:12 + | +LL | pub struct Opcode(pub u8); + | ^^^^^^ + = note: the matched value is of type `Opcode` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms + | +LL ~ Opcode::OP1 => unimplemented!(), +LL ~ Opcode(0_u8) | Opcode(2_u8..=u8::MAX) => todo!(), + | + +error[E0004]: non-exhaustive patterns: `Opcode2(Opcode(0_u8))` and `Opcode2(Opcode(2_u8..=u8::MAX))` not covered + --> $DIR/issue-88331.rs:27:20 + | +LL | move |i| match msg_type { + | ^^^^^^^^ patterns `Opcode2(Opcode(0_u8))` and `Opcode2(Opcode(2_u8..=u8::MAX))` not covered + | +note: `Opcode2` defined here + --> $DIR/issue-88331.rs:18:12 + | +LL | pub struct Opcode2(Opcode); + | ^^^^^^^ + = note: the matched value is of type `Opcode2` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms + | +LL ~ Opcode2::OP2=> unimplemented!(), +LL ~ Opcode2(Opcode(0_u8)) | Opcode2(Opcode(2_u8..=u8::MAX)) => todo!(), + | + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0004`. diff --git a/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_1.rs b/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_1.rs new file mode 100644 index 000000000..914ebbe26 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_1.rs @@ -0,0 +1,44 @@ +// run-pass +// edition:2021 + +const PATTERN_REF: &str = "Hello World"; +const NUMBER: i32 = 30; +const NUMBER_POINTER: *const i32 = &NUMBER; + +pub fn edge_case_ref(event: &str) { + let _ = || { + match event { + PATTERN_REF => (), + _ => (), + }; + }; +} + +pub fn edge_case_str(event: String) { + let _ = || { + match event.as_str() { + "hello" => (), + _ => (), + }; + }; +} + +pub fn edge_case_raw_ptr(event: *const i32) { + let _ = || { + match event { + NUMBER_POINTER => (), + _ => (), + }; + }; +} + +pub fn edge_case_char(event: char) { + let _ = || { + match event { + 'a' => (), + _ => (), + }; + }; +} + +fn main() {} diff --git a/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_2.rs b/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_2.rs new file mode 100644 index 000000000..ae724f9c3 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_2.rs @@ -0,0 +1,37 @@ +// edition:2021 + +enum SingleVariant { + A +} + +struct TestStruct { + x: i32, + y: i32, + z: i32, +} + +fn edge_case_if() { + let sv = SingleVariant::A; + let condition = true; + // sv should not be captured as it is a SingleVariant + let _a = || { + match sv { + SingleVariant::A if condition => (), + _ => () + } + }; + let mut mut_sv = sv; + _a(); + + // ts should be captured + let ts = TestStruct { x: 1, y: 1, z: 1 }; + let _b = || { match ts { + TestStruct{ x: 1, .. } => (), + _ => () + }}; + let mut mut_ts = ts; + //~^ ERROR: cannot move out of `ts` because it is borrowed + _b(); +} + +fn main() {} diff --git a/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_2.stderr b/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_2.stderr new file mode 100644 index 000000000..1e42d73c6 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/match-edge-cases_2.stderr @@ -0,0 +1,17 @@ +error[E0505]: cannot move out of `ts` because it is borrowed + --> $DIR/match-edge-cases_2.rs:32:22 + | +LL | let _b = || { match ts { + | -- -- borrow occurs due to use in closure + | | + | borrow of `ts` occurs here +... +LL | let mut mut_ts = ts; + | ^^ move out of `ts` occurs here +LL | +LL | _b(); + | -- borrow later used here + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0505`. diff --git a/src/test/ui/closures/2229_closure_analysis/match/non-exhaustive-match.rs b/src/test/ui/closures/2229_closure_analysis/match/non-exhaustive-match.rs new file mode 100644 index 000000000..318673ef8 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/non-exhaustive-match.rs @@ -0,0 +1,54 @@ +// edition:2021 + +// aux-build:match_non_exhaustive_lib.rs + +/* The error message for non-exhaustive matches on non-local enums + * marked as non-exhaustive should mention the fact that the enum + * is marked as non-exhaustive (issue #85227). + */ + +// Ignore non_exhaustive in the same crate +#[non_exhaustive] +enum L1 { A, B } +enum L2 { C } + +extern crate match_non_exhaustive_lib; +use match_non_exhaustive_lib::{E1, E2, E3, E4}; + +fn foo() -> (L1, L2) {todo!()} +fn bar() -> (E1, E2, E3, E4) {todo!()} + +fn main() { + let (l1, l2) = foo(); + // No error for enums defined in this crate + let _a = || { match l1 { L1::A => (), L1::B => () } }; + // (except if the match is already non-exhaustive) + let _b = || { match l1 { L1::A => () } }; + //~^ ERROR: non-exhaustive patterns: `B` not covered [E0004] + + // l2 should not be captured as it is a non-exhaustive SingleVariant + // defined in this crate + let _c = || { match l2 { L2::C => (), _ => () } }; + let mut mut_l2 = l2; + _c(); + + // E1 is not visibly uninhabited from here + let (e1, e2, e3, e4) = bar(); + let _d = || { match e1 {} }; + //~^ ERROR: non-exhaustive patterns: type `E1` is non-empty [E0004] + let _e = || { match e2 { E2::A => (), E2::B => () } }; + //~^ ERROR: non-exhaustive patterns: `_` not covered [E0004] + let _f = || { match e2 { E2::A => (), E2::B => (), _ => () } }; + + // e3 should be captured as it is a non-exhaustive SingleVariant + // defined in another crate + let _g = || { match e3 { E3::C => (), _ => () } }; + let mut mut_e3 = e3; + //~^ ERROR: cannot move out of `e3` because it is borrowed + _g(); + + // e4 should not be captured as it is a SingleVariant + let _h = || { match e4 { E4::D => (), _ => () } }; + let mut mut_e4 = e4; + _h(); +} diff --git a/src/test/ui/closures/2229_closure_analysis/match/non-exhaustive-match.stderr b/src/test/ui/closures/2229_closure_analysis/match/non-exhaustive-match.stderr new file mode 100644 index 000000000..e0678bc71 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/non-exhaustive-match.stderr @@ -0,0 +1,70 @@ +error[E0004]: non-exhaustive patterns: `B` not covered + --> $DIR/non-exhaustive-match.rs:26:25 + | +LL | let _b = || { match l1 { L1::A => () } }; + | ^^ pattern `B` not covered + | +note: `L1` defined here + --> $DIR/non-exhaustive-match.rs:12:14 + | +LL | enum L1 { A, B } + | -- ^ not covered + = note: the matched value is of type `L1` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | let _b = || { match l1 { L1::A => (), B => todo!() } }; + | ++++++++++++++ + +error[E0004]: non-exhaustive patterns: type `E1` is non-empty + --> $DIR/non-exhaustive-match.rs:37:25 + | +LL | let _d = || { match e1 {} }; + | ^^ + | +note: `E1` defined here + --> $DIR/auxiliary/match_non_exhaustive_lib.rs:2:1 + | +LL | pub enum E1 {} + | ^^^^^^^^^^^ + = note: the matched value is of type `E1`, which is marked as non-exhaustive +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown + | +LL ~ let _d = || { match e1 { +LL + _ => todo!(), +LL ~ } }; + | + +error[E0004]: non-exhaustive patterns: `_` not covered + --> $DIR/non-exhaustive-match.rs:39:25 + | +LL | let _e = || { match e2 { E2::A => (), E2::B => () } }; + | ^^ pattern `_` not covered + | +note: `E2` defined here + --> $DIR/auxiliary/match_non_exhaustive_lib.rs:5:1 + | +LL | pub enum E2 { A, B } + | ^^^^^^^^^^^ + = note: the matched value is of type `E2`, which is marked as non-exhaustive +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | let _e = || { match e2 { E2::A => (), E2::B => (), _ => todo!() } }; + | ++++++++++++++ + +error[E0505]: cannot move out of `e3` because it is borrowed + --> $DIR/non-exhaustive-match.rs:46:22 + | +LL | let _g = || { match e3 { E3::C => (), _ => () } }; + | -- -- borrow occurs due to use in closure + | | + | borrow of `e3` occurs here +LL | let mut mut_e3 = e3; + | ^^ move out of `e3` occurs here +LL | +LL | _g(); + | -- borrow later used here + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0004, E0505. +For more information about an error, try `rustc --explain E0004`. diff --git a/src/test/ui/closures/2229_closure_analysis/match/pattern-matching-should-fail.rs b/src/test/ui/closures/2229_closure_analysis/match/pattern-matching-should-fail.rs new file mode 100644 index 000000000..69cf920de --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/pattern-matching-should-fail.rs @@ -0,0 +1,79 @@ +// edition:2021 + +#![feature(never_type)] + +// Should fake read the discriminant and throw an error +fn test1() { + let x: !; + let c1 = || match x { }; + //~^ ERROR E0381 +} + +// Should fake read the discriminant and throw an error +fn test2() { + let x: !; + let c2 = || match x { _ => () }; + //~^ ERROR E0381 +} + +// Testing single variant patterns +enum SingleVariant { + Points(u32) +} + +// Should fake read the discriminant and throw an error +fn test3() { + let variant: !; + let c = || { + //~^ ERROR E0381 + match variant { + SingleVariant::Points(_) => {} + } + }; + c(); +} + +// Should fake read the discriminant and throw an error +fn test4() { + let variant: !; + let c = || { //~ ERROR E0381 + match variant { + SingleVariant::Points(a) => { + println!("{:?}", a); + } + } + }; + c(); +} + +fn test5() { + let t: !; + let g: !; + + let a = || { + match g { }; //~ ERROR E0381 + let c = || { + match t { }; //~ ERROR E0381 + }; + + c(); + }; + +} + +// Should fake read the discriminant and throw an error +fn test6() { + let x: u8; + let c1 = || match x { }; + //~^ ERROR E0381 + //~| ERROR: non-exhaustive patterns: type `u8` is non-empty +} + +fn main() { + test1(); + test2(); + test3(); + test4(); + test5(); + test6(); +} diff --git a/src/test/ui/closures/2229_closure_analysis/match/pattern-matching-should-fail.stderr b/src/test/ui/closures/2229_closure_analysis/match/pattern-matching-should-fail.stderr new file mode 100644 index 000000000..fea5441ec --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/pattern-matching-should-fail.stderr @@ -0,0 +1,83 @@ +error[E0004]: non-exhaustive patterns: type `u8` is non-empty + --> $DIR/pattern-matching-should-fail.rs:67:23 + | +LL | let c1 = || match x { }; + | ^ + | + = note: the matched value is of type `u8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown + | +LL ~ let c1 = || match x { +LL + _ => todo!(), +LL ~ }; + | + +error[E0381]: used binding `x` isn't initialized + --> $DIR/pattern-matching-should-fail.rs:8:23 + | +LL | let x: !; + | - binding declared here but left uninitialized +LL | let c1 = || match x { }; + | ^ `x` used here but it isn't initialized + +error[E0381]: used binding `x` isn't initialized + --> $DIR/pattern-matching-should-fail.rs:15:14 + | +LL | let x: !; + | - binding declared here but left uninitialized +LL | let c2 = || match x { _ => () }; + | ^^ - borrow occurs due to use in closure + | | + | `x` used here but it isn't initialized + +error[E0381]: used binding `variant` isn't initialized + --> $DIR/pattern-matching-should-fail.rs:27:13 + | +LL | let variant: !; + | ------- binding declared here but left uninitialized +LL | let c = || { + | ^^ `variant` used here but it isn't initialized +LL | +LL | match variant { + | ------- borrow occurs due to use in closure + +error[E0381]: used binding `variant` isn't initialized + --> $DIR/pattern-matching-should-fail.rs:39:13 + | +LL | let variant: !; + | ------- binding declared here but left uninitialized +LL | let c = || { + | ^^ `variant` used here but it isn't initialized +LL | match variant { + | ------- borrow occurs due to use in closure + +error[E0381]: used binding `g` isn't initialized + --> $DIR/pattern-matching-should-fail.rs:54:15 + | +LL | let g: !; + | - binding declared here but left uninitialized +... +LL | match g { }; + | ^ `g` used here but it isn't initialized + +error[E0381]: used binding `t` isn't initialized + --> $DIR/pattern-matching-should-fail.rs:56:19 + | +LL | let t: !; + | - binding declared here but left uninitialized +... +LL | match t { }; + | ^ `t` used here but it isn't initialized + +error[E0381]: used binding `x` isn't initialized + --> $DIR/pattern-matching-should-fail.rs:67:23 + | +LL | let x: u8; + | - binding declared here but left uninitialized +LL | let c1 = || match x { }; + | ^ `x` used here but it isn't initialized + +error: aborting due to 8 previous errors + +Some errors have detailed explanations: E0004, E0381. +For more information about an error, try `rustc --explain E0004`. diff --git a/src/test/ui/closures/2229_closure_analysis/match/patterns-capture-analysis.rs b/src/test/ui/closures/2229_closure_analysis/match/patterns-capture-analysis.rs new file mode 100644 index 000000000..56f5ac44d --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/patterns-capture-analysis.rs @@ -0,0 +1,137 @@ +// edition:2021 + +#![feature(rustc_attrs)] + +// Should capture the discriminant since a variant of a multivariant enum is +// mentioned in the match arm; the discriminant is captured by the closure regardless +// of if it creates a binding +fn test_1_should_capture() { + let variant = Some(2229); + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + + || { + //~^ First Pass analysis includes: + //~| Min Capture analysis includes: + match variant { + //~^ NOTE: Capturing variant[] -> ImmBorrow + //~| NOTE: Min Capture variant[] -> ImmBorrow + Some(_) => {} + _ => {} + } + }; + c(); +} + +// Should not capture the discriminant since only a wildcard is mentioned in the +// match arm +fn test_2_should_not_capture() { + let variant = Some(2229); + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + || { + //~^ First Pass analysis includes: + match variant { + _ => {} + } + }; + c(); +} + +// Testing single variant patterns +enum SingleVariant { + Points(u32) +} + +// Should not capture the discriminant since the single variant mentioned +// in the match arm does not trigger a binding +fn test_3_should_not_capture_single_variant() { + let variant = SingleVariant::Points(1); + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + || { + //~^ First Pass analysis includes: + match variant { + SingleVariant::Points(_) => {} + } + }; + c(); +} + +// Should not capture the discriminant since the single variant mentioned +// in the match arm does not trigger a binding +fn test_6_should_capture_single_variant() { + let variant = SingleVariant::Points(1); + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + || { + //~^ First Pass analysis includes: + //~| Min Capture analysis includes: + match variant { + //~^ NOTE: Capturing variant[] -> ImmBorrow + //~| NOTE: Capturing variant[(0, 0)] -> ImmBorrow + //~| NOTE: Min Capture variant[] -> ImmBorrow + SingleVariant::Points(a) => { + println!("{:?}", a); + } + } + }; + c(); +} + +// Should not capture the discriminant since only wildcards are mentioned in the +// match arm +fn test_4_should_not_capture_array() { + let array: [i32; 3] = [0; 3]; + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + || { + //~^ First Pass analysis includes: + match array { + [_,_,_] => {} + } + }; + c(); +} + +// Testing MultiVariant patterns +enum MVariant { + A, + B, + C, +} + +// Should capture the discriminant since a variant of the multi variant enum is +// mentioned in the match arm; the discriminant is captured by the closure +// regardless of if it creates a binding +fn test_5_should_capture_multi_variant() { + let variant = MVariant::A; + let c = #[rustc_capture_analysis] + //~^ ERROR: attributes on expressions are experimental + //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> + || { + //~^ First Pass analysis includes: + //~| Min Capture analysis includes: + match variant { + //~^ NOTE: Capturing variant[] -> ImmBorrow + //~| NOTE: Min Capture variant[] -> ImmBorrow + MVariant::A => {} + _ => {} + } + }; + c(); +} + +fn main() { + test_1_should_capture(); + test_2_should_not_capture(); + test_3_should_not_capture_single_variant(); + test_6_should_capture_single_variant(); + test_4_should_not_capture_array(); + test_5_should_capture_multi_variant(); +} diff --git a/src/test/ui/closures/2229_closure_analysis/match/patterns-capture-analysis.stderr b/src/test/ui/closures/2229_closure_analysis/match/patterns-capture-analysis.stderr new file mode 100644 index 000000000..460813333 --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/match/patterns-capture-analysis.stderr @@ -0,0 +1,203 @@ +error[E0658]: attributes on expressions are experimental + --> $DIR/patterns-capture-analysis.rs:10:14 + | +LL | let c = #[rustc_capture_analysis] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information + = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable + +error[E0658]: attributes on expressions are experimental + --> $DIR/patterns-capture-analysis.rs:31:14 + | +LL | let c = #[rustc_capture_analysis] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information + = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable + +error[E0658]: attributes on expressions are experimental + --> $DIR/patterns-capture-analysis.rs:52:14 + | +LL | let c = #[rustc_capture_analysis] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information + = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable + +error[E0658]: attributes on expressions are experimental + --> $DIR/patterns-capture-analysis.rs:68:14 + | +LL | let c = #[rustc_capture_analysis] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information + = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable + +error[E0658]: attributes on expressions are experimental + --> $DIR/patterns-capture-analysis.rs:90:14 + | +LL | let c = #[rustc_capture_analysis] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information + = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable + +error[E0658]: attributes on expressions are experimental + --> $DIR/patterns-capture-analysis.rs:114:14 + | +LL | let c = #[rustc_capture_analysis] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information + = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable + +error: First Pass analysis includes: + --> $DIR/patterns-capture-analysis.rs:14:5 + | +LL | / || { +LL | | +LL | | +LL | | match variant { +... | +LL | | } +LL | | }; + | |_____^ + | +note: Capturing variant[] -> ImmBorrow + --> $DIR/patterns-capture-analysis.rs:17:15 + | +LL | match variant { + | ^^^^^^^ + +error: Min Capture analysis includes: + --> $DIR/patterns-capture-analysis.rs:14:5 + | +LL | / || { +LL | | +LL | | +LL | | match variant { +... | +LL | | } +LL | | }; + | |_____^ + | +note: Min Capture variant[] -> ImmBorrow + --> $DIR/patterns-capture-analysis.rs:17:15 + | +LL | match variant { + | ^^^^^^^ + +error: First Pass analysis includes: + --> $DIR/patterns-capture-analysis.rs:34:5 + | +LL | / || { +LL | | +LL | | match variant { +LL | | _ => {} +LL | | } +LL | | }; + | |_____^ + +error: First Pass analysis includes: + --> $DIR/patterns-capture-analysis.rs:55:5 + | +LL | / || { +LL | | +LL | | match variant { +LL | | SingleVariant::Points(_) => {} +LL | | } +LL | | }; + | |_____^ + +error: First Pass analysis includes: + --> $DIR/patterns-capture-analysis.rs:71:5 + | +LL | / || { +LL | | +LL | | +LL | | match variant { +... | +LL | | } +LL | | }; + | |_____^ + | +note: Capturing variant[] -> ImmBorrow + --> $DIR/patterns-capture-analysis.rs:74:15 + | +LL | match variant { + | ^^^^^^^ +note: Capturing variant[(0, 0)] -> ImmBorrow + --> $DIR/patterns-capture-analysis.rs:74:15 + | +LL | match variant { + | ^^^^^^^ + +error: Min Capture analysis includes: + --> $DIR/patterns-capture-analysis.rs:71:5 + | +LL | / || { +LL | | +LL | | +LL | | match variant { +... | +LL | | } +LL | | }; + | |_____^ + | +note: Min Capture variant[] -> ImmBorrow + --> $DIR/patterns-capture-analysis.rs:74:15 + | +LL | match variant { + | ^^^^^^^ + +error: First Pass analysis includes: + --> $DIR/patterns-capture-analysis.rs:93:5 + | +LL | / || { +LL | | +LL | | match array { +LL | | [_,_,_] => {} +LL | | } +LL | | }; + | |_____^ + +error: First Pass analysis includes: + --> $DIR/patterns-capture-analysis.rs:117:5 + | +LL | / || { +LL | | +LL | | +LL | | match variant { +... | +LL | | } +LL | | }; + | |_____^ + | +note: Capturing variant[] -> ImmBorrow + --> $DIR/patterns-capture-analysis.rs:120:15 + | +LL | match variant { + | ^^^^^^^ + +error: Min Capture analysis includes: + --> $DIR/patterns-capture-analysis.rs:117:5 + | +LL | / || { +LL | | +LL | | +LL | | match variant { +... | +LL | | } +LL | | }; + | |_____^ + | +note: Min Capture variant[] -> ImmBorrow + --> $DIR/patterns-capture-analysis.rs:120:15 + | +LL | match variant { + | ^^^^^^^ + +error: aborting due to 15 previous errors + +For more information about this error, try `rustc --explain E0658`. |