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Rework CALL_FUNCTION* opcodes

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Issue #27213: Rework CALL_FUNCTION* opcodes to produce shorter and more
efficient bytecode:

* CALL_FUNCTION now only accepts position arguments
* CALL_FUNCTION_KW accepts position arguments and keyword arguments, but keys
  of keyword arguments are packed into a constant tuple.
* CALL_FUNCTION_EX is the most generic, it expects a tuple and a dict for
  positional and keyword arguments.

CALL_FUNCTION_VAR and CALL_FUNCTION_VAR_KW opcodes have been removed.

2 tests of test_traceback are currently broken: skip test, the issue #28050 was
created to track the issue.

Patch by Demur Rumed, design by Serhiy Storchaka, reviewed by Serhiy Storchaka
and Victor Stinner.
This commit is contained in:
Victor Stinner 2016-09-09 10:17:08 -07:00
parent e53592091a
commit f9b760f48a
12 changed files with 3372 additions and 3478 deletions
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2
Lib/dis.py
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@ -314,7 +314,7 @@ def _get_instructions_bytes(code, varnames=None, names=None, constants=None,
argrepr = argval
elif op in hasfree:
argval, argrepr = _get_name_info(arg, cells)
elif op in hasnargs:
elif op in hasnargs: # unused
argrepr = "%d positional, %d keyword pair" % (arg%256, arg//256)
yield Instruction(opname[op], op,
arg, argval, argrepr,