73 lines
2.0 KiB
Rust
73 lines
2.0 KiB
Rust
// rust-lang/rust#55492: errors detected during MIR-borrowck's
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// analysis of a closure body may only be caught when AST-borrowck
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// looks at some parent.
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// transcribed from borrowck-closures-unique.rs
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mod borrowck_closures_unique {
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pub fn e(x: &'static mut isize) {
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static mut Y: isize = 3;
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let mut c1 = |y: &'static mut isize| x = y;
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//~^ ERROR is not declared as mutable
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unsafe {
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c1(&mut Y);
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//~^ WARN mutable reference to mutable static is discouraged [static_mut_refs]
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}
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}
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}
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mod borrowck_closures_unique_grandparent {
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pub fn ee(x: &'static mut isize) {
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static mut Z: isize = 3;
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let mut c1 = |z: &'static mut isize| {
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let mut c2 = |y: &'static mut isize| x = y;
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//~^ ERROR is not declared as mutable
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c2(z);
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};
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unsafe {
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c1(&mut Z);
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//~^ WARN mutable reference to mutable static is discouraged [static_mut_refs]
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}
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}
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}
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// adapted from mutability_errors.rs
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mod mutability_errors {
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pub fn capture_assign_whole(x: (i32,)) {
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|| {
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x = (1,);
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//~^ ERROR is not declared as mutable
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};
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}
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pub fn capture_assign_part(x: (i32,)) {
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|| {
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x.0 = 1;
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//~^ ERROR is not declared as mutable
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};
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}
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pub fn capture_reborrow_whole(x: (i32,)) {
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|| {
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&mut x;
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//~^ ERROR is not declared as mutable
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};
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}
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pub fn capture_reborrow_part(x: (i32,)) {
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|| {
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&mut x.0;
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//~^ ERROR is not declared as mutable
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};
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}
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}
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fn main() {
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static mut X: isize = 2;
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unsafe {
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borrowck_closures_unique::e(&mut X);
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//~^ WARN mutable reference to mutable static is discouraged [static_mut_refs]
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}
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mutability_errors::capture_assign_whole((1000,));
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mutability_errors::capture_assign_part((2000,));
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mutability_errors::capture_reborrow_whole((3000,));
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mutability_errors::capture_reborrow_part((4000,));
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}
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