rust/tests/ui/diagnostic-width
Esteban Küber 1d78004575
Add Unicode block-drawing compiler output support
Add nightly-only theming support to rustc output using Unicode box
drawing characters instead of ASCII-art to draw the terminal UI:

After:

```
error: foo
  ╭▸ test.rs:3:3
  │
3 │       X0 Y0 Z0
  │   ┌───╿──│──┘
  │  ┌│───│──┘
  │ ┏││━━━┙
  │ ┃││
4 │ ┃││   X1 Y1 Z1
5 │ ┃││   X2 Y2 Z2
  │ ┃│└────╿──│──┘ `Z` label
  │ ┃└─────│──┤
  │ ┗━━━━━━┥  `Y` is a good letter too
  │        `X` is a good letter
  ╰╴
note: bar
  ╭▸ test.rs:4:3
  │
4 │ ┏   X1 Y1 Z1
5 │ ┃   X2 Y2 Z2
6 │ ┃   X3 Y3 Z3
  │ ┗━━━━━━━━━━┛
  ├ note: bar
  ╰ note: baz
note: qux
  ╭▸ test.rs:4:3
  │
4 │   X1 Y1 Z1
  ╰╴  ━━━━━━━━
```

Before:

```
error: foo
 --> test.rs:3:3
  |
3 |       X0 Y0 Z0
  |    ___^__-__-
  |   |___|__|
  |  ||___|
  | |||
4 | |||   X1 Y1 Z1
5 | |||   X2 Y2 Z2
  | |||____^__-__- `Z` label
  | ||_____|__|
  | |______|  `Y` is a good letter too
  |        `X` is a good letter
  |
note: bar
 --> test.rs:4:3
  |
4 | /   X1 Y1 Z1
5 | |   X2 Y2 Z2
6 | |   X3 Y3 Z3
  | |__________^
  = note: bar
  = note: baz
note: qux
 --> test.rs:4:3
  |
4 |   X1 Y1 Z1
  |   ^^^^^^^^
```
2024-11-10 23:57:18 +01:00
..
auxiliary
E0271.ascii.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
E0271.rs Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
E0271.unicode.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
flag-human.ascii.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
flag-human.rs Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
flag-human.unicode.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
flag-json.rs
flag-json.stderr
long-E0308.ascii.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
long-E0308.rs Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
long-E0308.unicode.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
non-1-width-unicode-multiline-label.ascii.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
non-1-width-unicode-multiline-label.rs Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
non-1-width-unicode-multiline-label.unicode.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
non-whitespace-trimming-2.ascii.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
non-whitespace-trimming-2.rs Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
non-whitespace-trimming-2.unicode.stderr Add Unicode block-drawing compiler output support 2024-11-10 23:57:18 +01:00
non-whitespace-trimming-unicode.rs
non-whitespace-trimming-unicode.stderr
non-whitespace-trimming.rs
non-whitespace-trimming.stderr
tab-column-numbers.rs
tab-column-numbers.stderr
tabs-trimming.rs
tabs-trimming.stderr
whitespace-trimming-2.rs
whitespace-trimming-2.stderr
whitespace-trimming.rs
whitespace-trimming.stderr