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Auto merge of #126597 - estebank:unicode-output, r=fmease

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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.

In order to enable, the flags `-Zunstable-options=yes --error-format=human-unicode` must be passed in.

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
  |   ^^^^^^^^
```

After:

![rustc output with unicode box drawing characters](d210b79a-6579-4407-9706-ba8edc6e9f25)

Before:
![current rustc output with ASCII art](5aecccf8-a6ee-4469-8b39-72fb0d979a9f)
This commit is contained in:
bors 2024-11-11 00:00:58 +00:00
commit 42b2496320
38 changed files with 2278 additions and 231 deletions
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716
compiler/rustc_errors/src/emitter.rs
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File diff suppressed because it is too large Load diff

7
compiler/rustc_errors/src/json.rs
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@ -27,7 +27,7 @@ use termcolor::{ColorSpec, WriteColor};
use crate::diagnostic::IsLint;
use crate::emitter::{
ColorConfig, Destination, Emitter, HumanEmitter, HumanReadableErrorType,
ColorConfig, Destination, Emitter, HumanEmitter, HumanReadableErrorType, OutputTheme,
should_show_source_code,
};
use crate::registry::Registry;
@ -377,6 +377,11 @@ impl Diagnostic {
.terminal_url(je.terminal_url)
.ui_testing(je.ui_testing)
.ignored_directories_in_source_blocks(je.ignored_directories_in_source_blocks.clone())
.theme(if let HumanReadableErrorType::Unicode = je.json_rendered {
OutputTheme::Unicode
} else {
OutputTheme::Ascii
})
.emit_diagnostic(diag);
let buf = Arc::try_unwrap(buf.0).unwrap().into_inner().unwrap();
let buf = String::from_utf8(buf).unwrap();