https://github.com/python/cpython/commit/1eed0f968f5f44d6a13403c1676298a322cbfbad
commit: 1eed0f968f5f44d6a13403c1676298a322cbfbad
branch: main
author: sobolevn <[email protected]>
committer: sobolevn <[email protected]>
date: 2024-08-26T21:59:50+03:00
summary:
gh-123340: Show string value of `IS_OP` oparg in `dis` (#123348)
files:
A Misc/NEWS.d/next/Library/2024-08-26-19-36-00.gh-issue-123340.mQKI1H.rst
M Lib/dis.py
M Lib/test/test_dis.py
diff --git a/Lib/dis.py b/Lib/dis.py
index 077c4035ca6511..bdac296e9c7a25 100644
--- a/Lib/dis.py
+++ b/Lib/dis.py
@@ -51,6 +51,7 @@
LOAD_FAST_LOAD_FAST = opmap['LOAD_FAST_LOAD_FAST']
STORE_FAST_LOAD_FAST = opmap['STORE_FAST_LOAD_FAST']
STORE_FAST_STORE_FAST = opmap['STORE_FAST_STORE_FAST']
+IS_OP = opmap['IS_OP']
CACHE = opmap["CACHE"]
@@ -629,6 +630,8 @@ def get_argval_argrepr(self, op, arg, offset):
argrepr = repr(obj)
elif deop == LOAD_SPECIAL:
argrepr = _special_method_names[arg]
+ elif deop == IS_OP:
+ argrepr = 'is not' if argval else 'is'
return argval, argrepr
def get_instructions(x, *, first_line=None, show_caches=None, adaptive=False):
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index db69bc7ccdc205..ab0fcee747dbf9 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -2028,6 +2028,15 @@ def f(x, y, z):
dis.dis(f.__code__, file=output, show_caches=True)
self.assertIn("L1:", output.getvalue())
+ def test_is_op_format(self):
+ output = io.StringIO()
+ dis.dis("a is b", file=output, show_caches=True)
+ self.assertIn("IS_OP 0 (is)", output.getvalue())
+
+ output = io.StringIO()
+ dis.dis("a is not b", file=output, show_caches=True)
+ self.assertIn("IS_OP 1 (is not)", output.getvalue())
+
def test_baseopname_and_baseopcode(self):
# Standard instructions
for name, code in dis.opmap.items():
diff --git
a/Misc/NEWS.d/next/Library/2024-08-26-19-36-00.gh-issue-123340.mQKI1H.rst
b/Misc/NEWS.d/next/Library/2024-08-26-19-36-00.gh-issue-123340.mQKI1H.rst
new file mode 100644
index 00000000000000..8a462b2300466e
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-08-26-19-36-00.gh-issue-123340.mQKI1H.rst
@@ -0,0 +1 @@
+Show string value of :opcode:`IS_OP` oparg in :mod:`dis` output.
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