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BUILD_MAP is different pre 3.5

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rocky
2024-07-13 09:49:00 -04:00
parent d0dc879b37
commit 0627215e98
1 changed files with 18 additions and 10 deletions
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28
uncompyle6/scanners/scanner3.py
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@@ -315,17 +315,25 @@ class Scanner3(Scanner):
if count < 5: if count < 5:
return None return None
collection_start = i - (count * 2) if self.version >= (3, 5):
assert (count * 2) <= i # Newer Python BUILD_MAP argument's count is a
# key and value pair so it is multiplied by two.
collection_start = i - (count * 2)
assert (count * 2) <= i
for j in range(collection_start, i, 2): for j in range(collection_start, i, 2):
if insts[j].opname not in ("LOAD_CONST",): if insts[j].opname not in ("LOAD_CONST",):
return None return None
if insts[j + 1].opname not in ("LOAD_CONST",): if insts[j + 1].opname not in ("LOAD_CONST",):
return None return None
collection_start = i - (2 * count) collection_start = i - (2 * count)
collection_enum = CONST_COLLECTIONS.index("CONST_MAP") collection_enum = CONST_COLLECTIONS.index("CONST_MAP")
# else: Older Python count is sum of all key and value pairs
# Each pair is added individually like:
# LOAD_CONST ("Max-Age")
# LOAD_CONST ("max-age")
# STORE_MAP
# If we get here, all instructions before tokens[i] are LOAD_CONST and # If we get here, all instructions before tokens[i] are LOAD_CONST and
# we can replace add a boundary marker and change LOAD_CONST to # we can replace add a boundary marker and change LOAD_CONST to
@@ -524,7 +532,7 @@ class Scanner3(Scanner):
if try_tokens is not None: if try_tokens is not None:
new_tokens = try_tokens new_tokens = try_tokens
continue continue
elif opname in ("BUILD_MAP",): elif opname in ("BUILD_MAP",) and self.version >= (3, 5):
try_tokens = self.bound_map_from_inst( try_tokens = self.bound_map_from_inst(
self.insts, self.insts,
new_tokens, new_tokens,