src/test/ui/nll/get_default.nll.stderr

   1 error[E0502]: cannot borrow `*map` as mutable because it is also borrowed as immutable (Ast)
   2   --> $DIR/get_default.rs:33:17
   3    |
   4 LL |         match map.get() {
   5    |               --- immutable borrow occurs here
   6 ...
   7 LL |                 map.set(String::new()); // Ideally, this would not error.
   8    |                 ^^^ mutable borrow occurs here
   9 ...
  10 LL | }
  11    | - immutable borrow ends here
  12
  13 error[E0502]: cannot borrow `*map` as mutable because it is also borrowed as immutable (Ast)
  14   --> $DIR/get_default.rs:45:17
  15    |
  16 LL |         match map.get() {
  17    |               --- immutable borrow occurs here
  18 LL |             Some(v) => {
  19 LL |                 map.set(String::new()); // Both AST and MIR error here
  20    |                 ^^^ mutable borrow occurs here
  21 ...
  22 LL | }
  23    | - immutable borrow ends here
  24
  25 error[E0502]: cannot borrow `*map` as mutable because it is also borrowed as immutable (Ast)
  26   --> $DIR/get_default.rs:51:17
  27    |
  28 LL |         match map.get() {
  29    |               --- immutable borrow occurs here
  30 ...
  31 LL |                 map.set(String::new()); // Ideally, just AST would error here
  32    |                 ^^^ mutable borrow occurs here
  33 ...
  34 LL | }
  35    | - immutable borrow ends here
  36
  37 error[E0502]: cannot borrow `*map` as mutable because it is also borrowed as immutable (Mir)
  38   --> $DIR/get_default.rs:33:17
  39    |
  40 LL | fn ok(map: &mut Map) -> &String {
  41    |            - let's call the lifetime of this reference `'1`
  42 LL |     loop {
  43 LL |         match map.get() {
  44    |               --- immutable borrow occurs here
  45 LL |             Some(v) => {
  46 LL |                 return v;
  47    |                        - returning this value requires that `*map` is borrowed for `'1`
  48 ...
  49 LL |                 map.set(String::new()); // Ideally, this would not error.
  50    |                 ^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
  51
  52 error[E0502]: cannot borrow `*map` as mutable because it is also borrowed as immutable (Mir)
  53   --> $DIR/get_default.rs:45:17
  54    |
  55 LL | fn err(map: &mut Map) -> &String {
  56    |             - let's call the lifetime of this reference `'1`
  57 LL |     loop {
  58 LL |         match map.get() {
  59    |               --- immutable borrow occurs here
  60 LL |             Some(v) => {
  61 LL |                 map.set(String::new()); // Both AST and MIR error here
  62    |                 ^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
  63 ...
  64 LL |                 return v;
  65    |                        - returning this value requires that `*map` is borrowed for `'1`
  66
  67 error[E0502]: cannot borrow `*map` as mutable because it is also borrowed as immutable (Mir)
  68   --> $DIR/get_default.rs:51:17
  69    |
  70 LL | fn err(map: &mut Map) -> &String {
  71    |             - let's call the lifetime of this reference `'1`
  72 LL |     loop {
  73 LL |         match map.get() {
  74    |               --- immutable borrow occurs here
  75 ...
  76 LL |                 return v;
  77    |                        - returning this value requires that `*map` is borrowed for `'1`
  78 ...
  79 LL |                 map.set(String::new()); // Ideally, just AST would error here
  80    |                 ^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
  81
  82 error: aborting due to 6 previous errors
  83
  84 For more information about this error, try `rustc --explain E0502`.