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Expect indented case block instead of match stmt (#11033)

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## Summary

This PR adds a new `Clause::Case` and uses it to parse the body of a
`case` block. Earlier, it was using `Match` which would give an
incorrect error message like:

```
  |
1 | match subject:
2 |     case 1:
3 |     case 2: ...
  |     ^^^^ Syntax Error: Expected an indented block after `match` statement
  |
```

## Test Plan

Add test case and update the snapshot.
This commit is contained in:
Dhruv Manilawala 2024-04-19 16:46:15 +05:30 • committed by GitHub
parent 06c248a126
commit 9bb23b0a38
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3 changed files with 95 additions and 3 deletions
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84
crates/ruff_python_parser/tests/snapshots/invalid_syntax@case_expect_indented_block.py.snap Normal file
View file

@ -0,0 +1,84 @@
---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/inline/err/case_expect_indented_block.py
---
## AST
```
Module(
ModModule {
range: 0..43,
body: [
Match(
StmtMatch {
range: 0..42,
subject: Name(
ExprName {
range: 6..13,
id: "subject",
ctx: Load,
},
),
cases: [
MatchCase {
range: 19..26,
pattern: MatchValue(
PatternMatchValue {
range: 24..25,
value: NumberLiteral(
ExprNumberLiteral {
range: 24..25,
value: Int(
1,
),
},
),
},
),
guard: None,
body: [],
},
MatchCase {
range: 31..42,
pattern: MatchValue(
PatternMatchValue {
range: 36..37,
value: NumberLiteral(
ExprNumberLiteral {
range: 36..37,
value: Int(
2,
),
},
),
},
),
guard: None,
body: [
Expr(
StmtExpr {
range: 39..42,
value: EllipsisLiteral(
ExprEllipsisLiteral {
range: 39..42,
},
),
},
),
],
},
],
},
),
],
},
)
```
## Errors
|
1 | match subject:
2 | case 1:
3 | case 2: ...
| ^^^^ Syntax Error: Expected an indented block after `case` block
|