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Use correct range to highlight line continuation error (#12016)

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## Summary

This PR fixes the range highlighted for the line continuation error.

Previously, it would highlight an incorrect range:
```
1 | call(a, b, \\\
  |           ^^ Syntax Error: unexpected character after line continuation character
2 | 
3 | def bar():
  |
```

And now:
```
  |
1 | call(a, b, \\\
  |             ^ Syntax Error: unexpected character after line continuation character
2 | 
3 | def bar():
  |
```

This is implemented by avoiding to update the token range for the
`Unknown` token which is emitted when there's a lexical error. Instead,
the `push_error` helper method will be responsible to update the range
to the error location.

This actually becomes a requirement which can be seen in follow-up PRs.

## Test Plan

Update and validate the snapshot.
This commit is contained in:
Dhruv Manilawala
2024-06-25 13:35:24 +05:30
committed by GitHub
parent 692309ebd7
commit 9c1b6ec411
2 changed files with 19 additions and 14 deletions
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10
crates/ruff_python_parser/tests/snapshots/invalid_syntax@re_lexing__line_continuation_1.py.snap
View File

@@ -11,10 +11,10 @@ Module(
body: [
Expr(
StmtExpr {
range: 0..13,
range: 0..14,
value: Call(
ExprCall {
range: 0..13,
range: 0..14,
func: Name(
ExprName {
range: 0..4,
@@ -23,7 +23,7 @@ Module(
},
),
arguments: Arguments {
range: 4..13,
range: 4..14,
args: [
Name(
ExprName {
@@ -82,7 +82,7 @@ Module(
|
1 | call(a, b, \\\
| ^^ Syntax Error: unexpected character after line continuation character
| ^ Syntax Error: unexpected character after line continuation character
2 |
3 | def bar():
|
@@ -90,7 +90,7 @@ Module(
|
1 | call(a, b, \\\
| ^ Syntax Error: unexpected character after line continuation character
| ^ Syntax Error: unexpected character after line continuation character
2 |
3 | def bar():
|