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---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/inline/err/yield_from_in_async_function.py
---
## AST
```
Module(
ModModule {
node_index: NodeIndex(None),
range: 0..28,
body: [
FunctionDef(
StmtFunctionDef {
node_index: NodeIndex(None),
range: 0..27,
is_async: true,
decorator_list: [],
name: Identifier {
id: Name("f"),
range: 10..11,
node_index: NodeIndex(None),
},
type_params: None,
parameters: Parameters {
range: 11..13,
node_index: NodeIndex(None),
posonlyargs: [],
args: [],
vararg: None,
kwonlyargs: [],
kwarg: None,
},
returns: None,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 15..27,
value: YieldFrom(
ExprYieldFrom {
node_index: NodeIndex(None),
range: 15..27,
value: Name(
ExprName {
node_index: NodeIndex(None),
range: 26..27,
id: Name("x"),
ctx: Load,
},
),
},
),
},
),
],
},
),
],
},
)
```
## Semantic Syntax Errors
|
1 | async def f(): yield from x
| ^^^^^^^^^^^^ Syntax Error: `yield from` statement in async function; use `async for` instead
|