diff options
Diffstat (limited to 'src/test')
6 files changed, 137 insertions, 5 deletions
diff --git a/src/test/compile-fail/borrowck/borrowck-init-in-fru.rs b/src/test/compile-fail/borrowck/borrowck-init-in-fru.rs index 569ddb80c2f..017318b6b21 100644 --- a/src/test/compile-fail/borrowck/borrowck-init-in-fru.rs +++ b/src/test/compile-fail/borrowck/borrowck-init-in-fru.rs @@ -8,6 +8,9 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. +// revisions: ast mir +//[mir]compile-flags: -Z emit-end-regions -Z borrowck-mir + #[derive(Clone)] struct point { x: isize, @@ -16,6 +19,9 @@ struct point { fn main() { let mut origin: point; - origin = point {x: 10,.. origin}; //~ ERROR use of possibly uninitialized variable: `origin.y` + origin = point {x: 10,.. origin}; + //[ast]~^ ERROR use of possibly uninitialized variable: `origin.y` [E0381] + //[mir]~^^ ERROR (Ast) [E0381] + //[mir]~| ERROR (Mir) [E0381] origin.clone(); } diff --git a/src/test/compile-fail/borrowck/borrowck-uninit-field-access.rs b/src/test/compile-fail/borrowck/borrowck-uninit-field-access.rs new file mode 100644 index 00000000000..957086f6af1 --- /dev/null +++ b/src/test/compile-fail/borrowck/borrowck-uninit-field-access.rs @@ -0,0 +1,49 @@ +// Copyright 2017 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// revisions: ast mir +//[mir]compile-flags: -Z emit-end-regions -Z borrowck-mir + +// Check that do not allow access to fields of uninitialized or moved +// structs. + +#[derive(Default)] +struct Point { + x: isize, + y: isize, +} + +#[derive(Default)] +struct Line { + origin: Point, + middle: Point, + target: Point, +} + +impl Line { fn consume(self) { } } + +fn main() { + let mut a: Point; + let _ = a.x + 1; //[ast]~ ERROR use of possibly uninitialized variable: `a.x` + //[mir]~^ ERROR [E0381] + //[mir]~| ERROR (Mir) [E0381] + + let mut line1 = Line::default(); + let _moved = line1.origin; + let _ = line1.origin.x + 1; //[ast]~ ERROR use of collaterally moved value: `line1.origin.x` + //[mir]~^ [E0382] + //[mir]~| (Mir) [E0381] + + let mut line2 = Line::default(); + let _moved = (line2.origin, line2.middle); + line2.consume(); //[ast]~ ERROR use of partially moved value: `line2` [E0382] + //[mir]~^ [E0382] + //[mir]~| (Mir) [E0381] +} diff --git a/src/test/compile-fail/borrowck/borrowck-uninit-ref-chain.rs b/src/test/compile-fail/borrowck/borrowck-uninit-ref-chain.rs new file mode 100644 index 00000000000..71f8693b210 --- /dev/null +++ b/src/test/compile-fail/borrowck/borrowck-uninit-ref-chain.rs @@ -0,0 +1,60 @@ +// Copyright 2017 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// revisions: ast mir +//[mir]compile-flags: -Z emit-end-regions -Z borrowck-mir + +struct S<X, Y> { + x: X, + y: Y, +} + +fn main() { + let x: &&Box<i32>; + let _y = &**x; //[ast]~ ERROR use of possibly uninitialized variable: `**x` [E0381] + //[mir]~^ (Ast) [E0381] + //[mir]~| (Mir) [E0381] + + let x: &&S<i32, i32>; + let _y = &**x; //[ast]~ ERROR use of possibly uninitialized variable: `**x` [E0381] + //[mir]~^ (Ast) [E0381] + //[mir]~| (Mir) [E0381] + + let x: &&i32; + let _y = &**x; //[ast]~ ERROR use of possibly uninitialized variable: `**x` [E0381] + //[mir]~^ (Ast) [E0381] + //[mir]~| (Mir) [E0381] + + + let mut a: S<i32, i32>; + a.x = 0; + let _b = &a.x; //[ast]~ ERROR use of possibly uninitialized variable: `a.x` [E0381] + //[mir]~^ ERROR (Ast) [E0381] + // (deliberately *not* an error under MIR-borrowck) + + let mut a: S<&&i32, &&i32>; + a.x = &&0; + let _b = &**a.x; //[ast]~ ERROR use of possibly uninitialized variable: `**a.x` [E0381] + //[mir]~^ ERROR (Ast) [E0381] + // (deliberately *not* an error under MIR-borrowck) + + + let mut a: S<i32, i32>; + a.x = 0; + let _b = &a.y; //[ast]~ ERROR use of possibly uninitialized variable: `a.y` [E0381] + //[mir]~^ ERROR (Ast) [E0381] + //[mir]~| ERROR (Mir) [E0381] + + let mut a: S<&&i32, &&i32>; + a.x = &&0; + let _b = &**a.y; //[ast]~ ERROR use of possibly uninitialized variable: `**a.y` [E0381] + //[mir]~^ ERROR (Ast) [E0381] + //[mir]~| ERROR (Mir) [E0381] +} diff --git a/src/test/compile-fail/borrowck/borrowck-use-in-index-lvalue.rs b/src/test/compile-fail/borrowck/borrowck-use-in-index-lvalue.rs index 7291bcd2ce1..2b567ebd2db 100644 --- a/src/test/compile-fail/borrowck/borrowck-use-in-index-lvalue.rs +++ b/src/test/compile-fail/borrowck/borrowck-use-in-index-lvalue.rs @@ -8,12 +8,19 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. +// revisions: ast mir +//[mir]compile-flags: -Z emit-end-regions -Z borrowck-mir + fn test() { let w: &mut [isize]; - w[5] = 0; //~ ERROR use of possibly uninitialized variable: `*w` + w[5] = 0; //[ast]~ ERROR use of possibly uninitialized variable: `*w` [E0381] + //[mir]~^ ERROR (Ast) [E0381] + //[mir]~| ERROR (Mir) [E0381] let mut w: &mut [isize]; - w[5] = 0; //~ ERROR use of possibly uninitialized variable: `*w` + w[5] = 0; //[ast]~ ERROR use of possibly uninitialized variable: `*w` [E0381] + //[mir]~^ ERROR (Ast) [E0381] + //[mir]~| ERROR (Mir) [E0381] } fn main() { test(); } diff --git a/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast-trait.rs b/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast-trait.rs index 796b455f5c7..a48d09b195a 100644 --- a/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast-trait.rs +++ b/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast-trait.rs @@ -8,6 +8,9 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. +// revisions: ast mir +//[mir]compile-flags: -Z emit-end-regions -Z borrowck-mir + // Variation on `borrowck-use-uninitialized-in-cast` in which we do a // trait cast from an uninitialized source. Issue #20791. @@ -16,5 +19,7 @@ impl Foo for i32 { } fn main() { let x: &i32; - let y = x as *const Foo; //~ ERROR use of possibly uninitialized variable: `*x` + let y = x as *const Foo; //[ast]~ ERROR use of possibly uninitialized variable: `*x` + //[mir]~^ ERROR (Ast) [E0381] + //[mir]~| ERROR (Mir) [E0381] } diff --git a/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast.rs b/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast.rs index 3f429bbd4b6..bdd90a3ce1e 100644 --- a/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast.rs +++ b/src/test/compile-fail/borrowck/borrowck-use-uninitialized-in-cast.rs @@ -8,11 +8,16 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. +// revisions: ast mir +//[mir]compile-flags: -Z emit-end-regions -Z borrowck-mir + // Check that we detect unused values that are cast to other things. // The problem was specified to casting to `*`, as creating unsafe // pointers was not being fully checked. Issue #20791. fn main() { let x: &i32; - let y = x as *const i32; //~ ERROR use of possibly uninitialized variable: `*x` + let y = x as *const i32; //[ast]~ ERROR use of possibly uninitialized variable: `*x` [E0381] + //[mir]~^ ERROR (Ast) [E0381] + //[mir]~| ERROR (Mir) [E0381] } |