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Commit5b0ac32

Browse files
[mypyc] Implementlist.clear() primitive (#19344)
Add primitive for `list.clear`. Issue:[#1093](mypyc/mypyc#1093)
1 parent4cefd46 commit5b0ac32

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6 files changed

+66
-0
lines changed

6 files changed

+66
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lines changed

‎mypyc/lib-rt/CPy.h‎

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Original file line numberDiff line numberDiff line change
@@ -667,6 +667,7 @@ PyObject *CPySequence_Multiply(PyObject *seq, CPyTagged t_size);
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PyObject*CPySequence_RMultiply(CPyTaggedt_size,PyObject*seq);
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PyObject*CPySequence_InPlaceMultiply(PyObject*seq,CPyTaggedt_size);
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PyObject*CPyList_GetSlice(PyObject*obj,CPyTaggedstart,CPyTaggedend);
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charCPyList_Clear(PyObject*list);
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PyObject*CPyList_Copy(PyObject*list);
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intCPySequence_Check(PyObject*obj);
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‎mypyc/lib-rt/list_ops.c‎

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Original file line numberDiff line numberDiff line change
@@ -29,6 +29,23 @@ PyObject *CPyList_Build(Py_ssize_t len, ...) {
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returnres;
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}
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charCPyList_Clear(PyObject*list) {
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if (PyList_CheckExact(list)) {
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PyList_Clear(list);
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}else {
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_Py_IDENTIFIER(clear);
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PyObject*name=_PyUnicode_FromId(&PyId_clear);
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if (name==NULL) {
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return0;
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}
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PyObject*res=PyObject_CallMethodNoArgs(list,name);
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if (res==NULL) {
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return0;
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}
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}
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return1;
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}
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PyObject*CPyList_Copy(PyObject*list) {
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if(PyList_CheckExact(list)) {
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returnPyList_GetSlice(list,0,PyList_GET_SIZE(list));

‎mypyc/primitives/list_ops.py‎

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Original file line numberDiff line numberDiff line change
@@ -271,6 +271,15 @@
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error_kind=ERR_MAGIC,
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)
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# list.clear()
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method_op(
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name="clear",
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arg_types=[list_rprimitive],
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return_type=bit_rprimitive,
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c_function_name="CPyList_Clear",
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error_kind=ERR_FALSE,
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)
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# list.copy()
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method_op(
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name="copy",

‎mypyc/test-data/fixtures/ir.py‎

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Original file line numberDiff line numberDiff line change
@@ -245,6 +245,7 @@ def sort(self) -> None: pass
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defreverse(self)->None:pass
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defremove(self,o:_T)->None:pass
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defindex(self,o:_T)->int:pass
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defclear(self)->None:pass
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defcopy(self)->List[_T]:pass
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classdict(Mapping[_K,_V]):

‎mypyc/test-data/irbuild-lists.test‎

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Original file line numberDiff line numberDiff line change
@@ -220,6 +220,18 @@ L0:
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r1 = r0 << 1
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return r1
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[case testListClear]
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from typing import List
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def f(l: List[int]) -> None:
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return l.clear()
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[out]
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def f(l):
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l :: list
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r0 :: bit
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L0:
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r0 = CPyList_Clear(l)
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return 1
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[case testListCopy]
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from typing import List
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from typing import Any

‎mypyc/test-data/run-lists.test‎

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Original file line numberDiff line numberDiff line change
@@ -51,6 +51,32 @@ print(2, a)
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1 [-1, 5]
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2 [340282366920938463463374607431768211461, -170141183460469231731687303715884105736]
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[case testListClear]
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from typing import List, Any
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from copysubclass import subc
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def test_list_clear() -> None:
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l1 = [1, 2, 3, -4, 5]
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l1.clear()
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assert l1 == []
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l1.clear()
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assert l1 == []
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l2: List[Any] = []
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l2.clear()
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assert l2 == []
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l3 = [1, 2, 3, "abcdef"]
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l3.clear()
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assert l3 == []
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# subclass testing
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l4: subc = subc([1, 2, 3])
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l4.clear()
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assert l4 == []
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[file copysubclass.py]
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from typing import Any
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class subc(list[Any]):
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pass
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[case testListCopy]
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from typing import List
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from copysubclass import subc

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