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compiletest: Support custom normalization rules.
This commit is contained in:
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18712e6edf
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@ -9,10 +9,6 @@
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// except according to those terms.
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// run-pass
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// ignore-x86
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// ignore-arm
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// ignore-emscripten
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// ^ ignore 32-bit targets, as the error message is target-dependent. see PR #41968.
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#![warn(variant_size_differences)]
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#![allow(dead_code)]
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@ -24,26 +20,26 @@ enum Enum1 { }
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enum Enum2 { A, B, C }
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enum Enum3 { D(isize), E, F }
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enum Enum3 { D(i64), E, F }
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enum Enum4 { H(isize), I(isize), J }
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enum Enum4 { H(i64), I(i64), J }
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enum Enum5 {
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L(isize, isize, isize, isize), //~ WARNING three times larger
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M(isize),
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L(i64, i64, i64, i64), //~ WARNING three times larger
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M(i64),
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N
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}
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enum Enum6<T, U> {
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O(T),
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P(U),
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Q(isize)
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Q(i64)
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}
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#[allow(variant_size_differences)]
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enum Enum7 {
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R(isize, isize, isize, isize),
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S(isize),
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R(i64, i64, i64, i64),
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S(i64),
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T
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}
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pub fn main() { }
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@ -1,12 +1,12 @@
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warning: enum variant is more than three times larger (32 bytes) than the next largest
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--> $DIR/enum-size-variance.rs:32:5
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--> $DIR/enum-size-variance.rs:28:5
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32 | L(isize, isize, isize, isize), //~ WARNING three times larger
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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28 | L(i64, i64, i64, i64), //~ WARNING three times larger
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| ^^^^^^^^^^^^^^^^^^^^^
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note: lint level defined here
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--> $DIR/enum-size-variance.rs:17:9
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--> $DIR/enum-size-variance.rs:13:9
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17 | #![warn(variant_size_differences)]
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13 | #![warn(variant_size_differences)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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@ -8,10 +8,10 @@
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-x86
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// ignore-arm
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// ignore-emscripten
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// ignore 32-bit platforms (test output is different)
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// normalize-stderr-32bit: "&str (64 bits)" -> "&str ($STR bits)"
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// normalize-stderr-64bit: "&str (128 bits)" -> "&str ($STR bits)"
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#![feature(untagged_unions)]
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use std::mem::transmute;
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@ -22,7 +22,7 @@ error[E0512]: transmute called with types of different sizes
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34 | let x: u8 = transmute("test"); //~ ERROR transmute called with types of different sizes
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| ^^^^^^^^^
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= note: source type: &str (128 bits)
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= note: source type: &str ($STR bits)
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= note: target type: u8 (8 bits)
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error[E0512]: transmute called with types of different sizes
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@ -8,14 +8,9 @@
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-x86
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// ignore-arm
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// ignore-emscripten
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// ignore 32-bit platforms (test output is different)
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use std::mem;
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unsafe fn foo() -> (i32, *const (), Option<fn()>) {
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unsafe fn foo() -> (i8, *const (), Option<fn()>) {
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let i = mem::transmute(bar);
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//~^ ERROR is zero-sized and can't be transmuted
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//~^^ NOTE cast with `as` to a pointer instead
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@ -46,7 +41,7 @@ unsafe fn bar() {
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//~^^ NOTE cast with `as` to a pointer instead
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// No error if a coercion would otherwise occur.
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mem::transmute::<fn(), u32>(main);
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mem::transmute::<fn(), usize>(main);
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}
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unsafe fn baz() {
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@ -63,7 +58,7 @@ unsafe fn baz() {
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//~^^ NOTE cast with `as` to a pointer instead
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// No error if a coercion would otherwise occur.
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mem::transmute::<Option<fn()>, u32>(Some(main));
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mem::transmute::<Option<fn()>, usize>(Some(main));
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}
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fn main() {
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@ -1,26 +1,26 @@
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error[E0512]: transmute called with types of different sizes
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--> $DIR/transmute-from-fn-item-types-error.rs:19:13
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--> $DIR/transmute-from-fn-item-types-error.rs:14:13
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19 | let i = mem::transmute(bar);
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14 | let i = mem::transmute(bar);
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| ^^^^^^^^^^^^^^
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= note: source type: unsafe fn() {bar} (0 bits)
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= note: target type: i32 (32 bits)
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= note: target type: i8 (8 bits)
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:23:13
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--> $DIR/transmute-from-fn-item-types-error.rs:18:13
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23 | let p = mem::transmute(foo);
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18 | let p = mem::transmute(foo);
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| ^^^^^^^^^^^^^^
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= note: source type: unsafe fn() -> (i32, *const (), std::option::Option<fn()>) {foo}
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= note: source type: unsafe fn() -> (i8, *const (), std::option::Option<fn()>) {foo}
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= note: target type: *const ()
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= help: cast with `as` to a pointer instead
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:27:14
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--> $DIR/transmute-from-fn-item-types-error.rs:22:14
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27 | let of = mem::transmute(main);
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22 | let of = mem::transmute(main);
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| ^^^^^^^^^^^^^^
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= note: source type: fn() {main}
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@ -28,57 +28,28 @@ error[E0591]: can't transmute zero-sized type
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= help: cast with `as` to a pointer instead
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error[E0512]: transmute called with types of different sizes
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--> $DIR/transmute-from-fn-item-types-error.rs:36:5
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--> $DIR/transmute-from-fn-item-types-error.rs:31:5
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36 | mem::transmute::<_, u8>(main);
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31 | mem::transmute::<_, u8>(main);
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: fn() {main} (0 bits)
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= note: target type: u8 (8 bits)
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:40:5
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--> $DIR/transmute-from-fn-item-types-error.rs:35:5
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40 | mem::transmute::<_, *mut ()>(foo);
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35 | mem::transmute::<_, *mut ()>(foo);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: unsafe fn() -> (i32, *const (), std::option::Option<fn()>) {foo}
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= note: source type: unsafe fn() -> (i8, *const (), std::option::Option<fn()>) {foo}
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= note: target type: *mut ()
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= help: cast with `as` to a pointer instead
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:44:5
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--> $DIR/transmute-from-fn-item-types-error.rs:39:5
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44 | mem::transmute::<_, fn()>(bar);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: unsafe fn() {bar}
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= note: target type: fn()
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= help: cast with `as` to a pointer instead
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error[E0512]: transmute called with types of different sizes
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--> $DIR/transmute-from-fn-item-types-error.rs:49:5
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49 | mem::transmute::<fn(), u32>(main);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: fn() (64 bits)
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= note: target type: u32 (32 bits)
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:53:5
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53 | mem::transmute::<_, *mut ()>(Some(foo));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: unsafe fn() -> (i32, *const (), std::option::Option<fn()>) {foo}
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= note: target type: *mut ()
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= help: cast with `as` to a pointer instead
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:57:5
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57 | mem::transmute::<_, fn()>(Some(bar));
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39 | mem::transmute::<_, fn()>(bar);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: unsafe fn() {bar}
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@ -86,23 +57,34 @@ error[E0591]: can't transmute zero-sized type
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= help: cast with `as` to a pointer instead
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:61:5
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--> $DIR/transmute-from-fn-item-types-error.rs:48:5
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61 | mem::transmute::<_, Option<fn()>>(Some(baz));
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48 | mem::transmute::<_, *mut ()>(Some(foo));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: unsafe fn() -> (i8, *const (), std::option::Option<fn()>) {foo}
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= note: target type: *mut ()
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= help: cast with `as` to a pointer instead
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:52:5
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52 | mem::transmute::<_, fn()>(Some(bar));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: unsafe fn() {bar}
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= note: target type: fn()
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= help: cast with `as` to a pointer instead
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error[E0591]: can't transmute zero-sized type
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--> $DIR/transmute-from-fn-item-types-error.rs:56:5
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56 | mem::transmute::<_, Option<fn()>>(Some(baz));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: unsafe fn() {baz}
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= note: target type: std::option::Option<fn()>
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= help: cast with `as` to a pointer instead
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error[E0512]: transmute called with types of different sizes
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--> $DIR/transmute-from-fn-item-types-error.rs:66:5
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66 | mem::transmute::<Option<fn()>, u32>(Some(main));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: source type: std::option::Option<fn()> (64 bits)
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= note: target type: u32 (32 bits)
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error: aborting due to 11 previous errors
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error: aborting due to 9 previous errors
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@ -8,10 +8,10 @@
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-x86
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// ignore-arm
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// ignore-emscripten
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// ignore 32-bit platforms (test output is different)
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// Tests that `transmute` cannot be called on type parameters.
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@ -211,6 +211,9 @@ pub struct TestProps {
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// The test must be compiled and run successfully. Only used in UI tests for
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// now.
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pub run_pass: bool,
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// customized normalization rules
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pub normalize_stdout: Vec<(String, String)>,
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pub normalize_stderr: Vec<(String, String)>,
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}
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impl TestProps {
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@ -237,6 +240,8 @@ impl TestProps {
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must_compile_successfully: false,
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check_test_line_numbers_match: false,
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run_pass: false,
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normalize_stdout: vec![],
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normalize_stderr: vec![],
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}
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}
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@ -351,6 +356,13 @@ impl TestProps {
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if !self.run_pass {
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self.run_pass = config.parse_run_pass(ln);
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}
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if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") {
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self.normalize_stdout.push(rule);
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}
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if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") {
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self.normalize_stderr.push(rule);
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}
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});
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for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] {
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@ -399,7 +411,6 @@ fn iter_header(testfile: &Path, cfg: Option<&str>, it: &mut FnMut(&str)) {
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}
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impl Config {
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fn parse_error_pattern(&self, line: &str) -> Option<String> {
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self.parse_name_value_directive(line, "error-pattern")
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}
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@ -497,6 +508,22 @@ impl Config {
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}
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}
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fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> {
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if self.parse_cfg_name_directive(line, prefix) {
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let from = match parse_normalization_string(&mut line) {
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Some(s) => s,
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None => return None,
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};
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let to = match parse_normalization_string(&mut line) {
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Some(s) => s,
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None => return None,
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};
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Some((from, to))
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} else {
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None
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}
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}
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/// Parses a name-value directive which contains config-specific information, e.g. `ignore-x86`
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/// or `normalize-stderr-32bit`. Returns `true` if the line matches it.
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fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> bool {
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@ -568,3 +595,29 @@ fn expand_variables(mut value: String, config: &Config) -> String {
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value
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}
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/// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line`
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/// variable after the end of the quoted string.
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///
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/// # Examples
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///
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/// ```
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/// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\".";
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/// let first = parse_normalization_string(&mut s);
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/// assert_eq!(first, Some("something (32 bits)".to_owned()));
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/// assert_eq!(s, " -> \"something ($WORD bits)\".");
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/// ```
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fn parse_normalization_string(line: &mut &str) -> Option<String> {
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// FIXME support escapes in strings.
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let begin = match line.find('"') {
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Some(i) => i + 1,
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None => return None,
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};
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let end = match line[begin..].find('"') {
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Some(i) => i + begin,
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None => return None,
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};
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let result = line[begin..end].to_owned();
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*line = &line[end+1..];
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Some(result)
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}
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@ -2228,8 +2228,10 @@ actual:\n\
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let expected_stdout_path = self.expected_output_path("stdout");
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let expected_stdout = self.load_expected_output(&expected_stdout_path);
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let normalized_stdout = self.normalize_output(&proc_res.stdout);
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let normalized_stderr = self.normalize_output(&proc_res.stderr);
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let normalized_stdout =
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self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout);
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let normalized_stderr =
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self.normalize_output(&proc_res.stderr, &self.props.normalize_stderr);
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let mut errors = 0;
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errors += self.compare_output("stdout", &normalized_stdout, &expected_stdout);
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@ -2375,13 +2377,17 @@ actual:\n\
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mir_dump_dir
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}
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fn normalize_output(&self, output: &str) -> String {
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fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
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let parent_dir = self.testpaths.file.parent().unwrap();
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let parent_dir_str = parent_dir.display().to_string();
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output.replace(&parent_dir_str, "$DIR")
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let mut normalized = output.replace(&parent_dir_str, "$DIR")
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.replace("\\", "/") // normalize for paths on windows
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.replace("\r\n", "\n") // normalize for linebreaks on windows
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.replace("\t", "\\t") // makes tabs visible
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.replace("\t", "\\t"); // makes tabs visible
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for rule in custom_rules {
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normalized = normalized.replace(&rule.0, &rule.1);
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}
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normalized
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}
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fn expected_output_path(&self, kind: &str) -> PathBuf {
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