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---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/inline/err/invalid_match_pattern_target.py
---
## AST
```
Module(
ModModule {
node_index: NodeIndex(None),
range: 0..64,
body: [
Match(
StmtMatch {
node_index: NodeIndex(None),
range: 0..53,
subject: Name(
ExprName {
node_index: NodeIndex(None),
range: 6..11,
id: Name("value"),
ctx: Load,
},
),
cases: [
MatchCase {
range: 17..33,
node_index: NodeIndex(None),
pattern: MatchAs(
PatternMatchAs {
node_index: NodeIndex(None),
range: 22..28,
pattern: Some(
MatchValue(
PatternMatchValue {
node_index: NodeIndex(None),
range: 22..23,
value: NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 22..23,
value: Int(
1,
),
},
),
},
),
),
name: Some(
Identifier {
id: Name("_"),
range: 27..28,
node_index: NodeIndex(None),
},
),
},
),
guard: None,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 30..33,
value: EllipsisLiteral(
ExprEllipsisLiteral {
node_index: NodeIndex(None),
range: 30..33,
},
),
},
),
],
},
MatchCase {
range: 38..53,
node_index: NodeIndex(None),
pattern: MatchMapping(
PatternMatchMapping {
node_index: NodeIndex(None),
range: 43..48,
keys: [],
patterns: [],
rest: Some(
Identifier {
id: Name("_"),
range: 46..47,
node_index: NodeIndex(None),
},
),
},
),
guard: None,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 50..53,
value: EllipsisLiteral(
ExprEllipsisLiteral {
node_index: NodeIndex(None),
range: 50..53,
},
),
},
),
],
},
],
},
),
Assign(
StmtAssign {
node_index: NodeIndex(None),
range: 54..63,
targets: [
Name(
ExprName {
node_index: NodeIndex(None),
range: 54..59,
id: Name("after"),
ctx: Store,
},
),
],
value: NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 62..63,
value: Int(
1,
),
},
),
},
),
],
},
)
```
## Errors
|
1 | match value:
2 | case 1 as _: ...
| ^ Syntax Error: cannot use '_' as a target
3 | case {**_}: ...
4 | after = 1
|
|
1 | match value:
2 | case 1 as _: ...
3 | case {**_}: ...
| ^ Syntax Error: cannot use '_' as a target
4 | after = 1
|