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implement aiter by sum12 · Pull Request #3646 · RustPython/RustPython · GitHub

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implement aiter #3646

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Merged
youknowone merged 3 commits into from
Apr 22, 2022
Conversation 7 Commits 3 Checks 0 Files changed
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implement aiter #3646

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8455c74
implement aiter
sum12 Apr 19, 2022
d74a1d5
added test for builtin.aiter
sum12 Apr 19, 2022
5fdf62a
Check for PyAsyncGen when calling aiter
sum12 Apr 20, 2022
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4 changes: 0 additions & 4 deletions Lib/test/test_asyncgen.py
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Original file line number Diff line number Diff line change
Expand Up @@ -543,8 +543,6 @@ async def consume():
self.loop.run_until_complete(consume())
self.assertEqual(results, [1, 2])

# TODO: RUSTPYTHON, NameError: name 'aiter' is not defined
@unittest.expectedFailure
def test_aiter_idempotent(self):
async def gen():
yield 1
Expand Down Expand Up @@ -766,8 +764,6 @@ def run_test(test):
run_test(test5)
run_test(test6)

# TODO: RUSTPYTHON, NameError: name 'aiter' is not defined
@unittest.expectedFailure
def test_aiter_bad_args(self):
async def gen():
yield 1
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10 changes: 10 additions & 0 deletions vm/src/stdlib/builtins.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ mod builtins {
use crate::compile;
use crate::{
builtins::{
asyncgenerator::PyAsyncGen,
enumerate::PyReverseSequenceIterator,
function::{PyCellRef, PyFunctionRef},
int::PyIntRef,
Expand Down Expand Up @@ -426,6 +427,15 @@ mod builtins {
}
}

#[pyfunction]
fn aiter(iter_target: PyObjectRef, vm: &VirtualMachine) -> PyResult {
if iter_target.payload_is::<PyAsyncGen>() {
vm.call_special_method(iter_target, "__aiter__", ())
} else {
Err(vm.new_type_error("wrong argument type".to_owned()))
}
}

#[pyfunction]
fn len(obj: PyObjectRef, vm: &VirtualMachine) -> PyResult<usize> {
obj.length(vm)
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