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-rw-r--r--Lib/test/test_compile.py78
1 files changed, 59 insertions, 19 deletions
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index 85ae71c..519a120 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -2,6 +2,7 @@ import contextlib
import dis
import io
import itertools
+import marshal
import math
import opcode
import os
@@ -1385,52 +1386,91 @@ class TestSpecifics(unittest.TestCase):
self.assertEqual(actual, expected)
def check_consts(func, typ, expected):
- slice_consts = 0
+ expected = set([repr(x) for x in expected])
+ all_consts = set()
consts = func.__code__.co_consts
for instr in dis.Bytecode(func):
if instr.opname == "LOAD_CONST" and isinstance(consts[instr.oparg], typ):
- slice_consts += 1
- self.assertEqual(slice_consts, expected)
+ all_consts.add(repr(consts[instr.oparg]))
+ self.assertEqual(all_consts, expected)
def load():
return x[a:b] + x [a:] + x[:b] + x[:]
+ check_op_count(load, "BINARY_SLICE", 3)
+ check_op_count(load, "BUILD_SLICE", 0)
+ check_consts(load, slice, [slice(None, None, None)])
+ check_op_count(load, "BINARY_SUBSCR", 1)
+
def store():
x[a:b] = y
x [a:] = y
x[:b] = y
x[:] = y
+ check_op_count(store, "STORE_SLICE", 3)
+ check_op_count(store, "BUILD_SLICE", 0)
+ check_op_count(store, "STORE_SUBSCR", 1)
+ check_consts(store, slice, [slice(None, None, None)])
+
def long_slice():
return x[a:b:c]
+ check_op_count(long_slice, "BUILD_SLICE", 1)
+ check_op_count(long_slice, "BINARY_SLICE", 0)
+ check_consts(long_slice, slice, [])
+ check_op_count(long_slice, "BINARY_SUBSCR", 1)
+
def aug():
x[a:b] += y
+ check_op_count(aug, "BINARY_SLICE", 1)
+ check_op_count(aug, "STORE_SLICE", 1)
+ check_op_count(aug, "BUILD_SLICE", 0)
+ check_op_count(aug, "BINARY_SUBSCR", 0)
+ check_op_count(aug, "STORE_SUBSCR", 0)
+ check_consts(aug, slice, [])
+
def aug_const():
x[1:2] += y
+ check_op_count(aug_const, "BINARY_SLICE", 0)
+ check_op_count(aug_const, "STORE_SLICE", 0)
+ check_op_count(aug_const, "BINARY_SUBSCR", 1)
+ check_op_count(aug_const, "STORE_SUBSCR", 1)
+ check_consts(aug_const, slice, [slice(1, 2)])
+
def compound_const_slice():
x[1:2:3, 4:5:6] = y
- check_op_count(load, "BINARY_SLICE", 3)
- check_op_count(load, "BUILD_SLICE", 0)
- check_consts(load, slice, 1)
- check_op_count(store, "STORE_SLICE", 3)
- check_op_count(store, "BUILD_SLICE", 0)
- check_consts(store, slice, 1)
- check_op_count(long_slice, "BUILD_SLICE", 1)
- check_op_count(long_slice, "BINARY_SLICE", 0)
- check_op_count(aug, "BINARY_SLICE", 1)
- check_op_count(aug, "STORE_SLICE", 1)
- check_op_count(aug, "BUILD_SLICE", 0)
- check_op_count(aug_const, "BINARY_SLICE", 0)
- check_op_count(aug_const, "STORE_SLICE", 0)
- check_consts(aug_const, slice, 1)
check_op_count(compound_const_slice, "BINARY_SLICE", 0)
check_op_count(compound_const_slice, "BUILD_SLICE", 0)
- check_consts(compound_const_slice, slice, 0)
- check_consts(compound_const_slice, tuple, 1)
+ check_op_count(compound_const_slice, "STORE_SLICE", 0)
+ check_op_count(compound_const_slice, "STORE_SUBSCR", 1)
+ check_consts(compound_const_slice, slice, [])
+ check_consts(compound_const_slice, tuple, [(slice(1, 2, 3), slice(4, 5, 6))])
+
+ def mutable_slice():
+ x[[]:] = y
+
+ check_consts(mutable_slice, slice, {})
+
+ def different_but_equal():
+ x[:0] = y
+ x[:0.0] = y
+ x[:False] = y
+ x[:None] = y
+
+ check_consts(
+ different_but_equal,
+ slice,
+ [
+ slice(None, 0, None),
+ slice(None, 0.0, None),
+ slice(None, False, None),
+ slice(None, None, None)
+ ]
+ )
def test_compare_positions(self):
for opname_prefix, op in [