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Remove the need for a "()" empty argument list after opcodes.

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This commit is contained in:
Georg Brandl 2010-07-03 10:41:33 +00:00
parent 94e5de0df0
commit 4833e5b874
2 changed files with 76 additions and 67 deletions
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128
Doc/library/dis.rst
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@ -50,14 +50,15 @@ The :mod:`dis` module defines the following functions and constants:
.. function:: distb(tb=None) .. function:: distb(tb=None)
Disassembles the top-of-stack function of a traceback, using the last traceback Disassemble the top-of-stack function of a traceback, using the last
if none was passed. The instruction causing the exception is indicated. traceback if none was passed. The instruction causing the exception is
indicated.
.. function:: disassemble(code, lasti=-1) .. function:: disassemble(code, lasti=-1)
disco(code, lasti=-1) disco(code, lasti=-1)
Disassembles a code object, indicating the last instruction if *lasti* was Disassemble a code object, indicating the last instruction if *lasti* was
provided. The output is divided in the following columns: provided. The output is divided in the following columns:
#. the line number, for the first instruction of each line #. the line number, for the first instruction of each line
@ -143,225 +144,233 @@ Python Bytecode Instructions
The Python compiler currently generates the following bytecode instructions. The Python compiler currently generates the following bytecode instructions.
.. opcode:: STOP_CODE () **General instructions**
.. opcode:: STOP_CODE
Indicates end-of-code to the compiler, not used by the interpreter. Indicates end-of-code to the compiler, not used by the interpreter.
.. opcode:: NOP () .. opcode:: NOP
Do nothing code. Used as a placeholder by the bytecode optimizer. Do nothing code. Used as a placeholder by the bytecode optimizer.
.. opcode:: POP_TOP () .. opcode:: POP_TOP
Removes the top-of-stack (TOS) item. Removes the top-of-stack (TOS) item.
.. opcode:: ROT_TWO () .. opcode:: ROT_TWO
Swaps the two top-most stack items. Swaps the two top-most stack items.
.. opcode:: ROT_THREE () .. opcode:: ROT_THREE
Lifts second and third stack item one position up, moves top down to position Lifts second and third stack item one position up, moves top down to position
three. three.
.. opcode:: ROT_FOUR () .. opcode:: ROT_FOUR
Lifts second, third and forth stack item one position up, moves top down to Lifts second, third and forth stack item one position up, moves top down to
position four. position four.
.. opcode:: DUP_TOP () .. opcode:: DUP_TOP
Duplicates the reference on top of the stack. Duplicates the reference on top of the stack.
Unary Operations take the top of the stack, apply the operation, and push the
**Unary operations**
Unary operations take the top of the stack, apply the operation, and push the
result back on the stack. result back on the stack.
.. opcode:: UNARY_POSITIVE
.. opcode:: UNARY_POSITIVE ()
Implements ``TOS = +TOS``. Implements ``TOS = +TOS``.
.. opcode:: UNARY_NEGATIVE () .. opcode:: UNARY_NEGATIVE
Implements ``TOS = -TOS``. Implements ``TOS = -TOS``.
.. opcode:: UNARY_NOT () .. opcode:: UNARY_NOT
Implements ``TOS = not TOS``. Implements ``TOS = not TOS``.
.. opcode:: UNARY_INVERT () .. opcode:: UNARY_INVERT
Implements ``TOS = ~TOS``. Implements ``TOS = ~TOS``.
.. opcode:: GET_ITER () .. opcode:: GET_ITER
Implements ``TOS = iter(TOS)``. Implements ``TOS = iter(TOS)``.
**Binary operations**
Binary operations remove the top of the stack (TOS) and the second top-most Binary operations remove the top of the stack (TOS) and the second top-most
stack item (TOS1) from the stack. They perform the operation, and put the stack item (TOS1) from the stack. They perform the operation, and put the
result back on the stack. result back on the stack.
.. opcode:: BINARY_POWER
.. opcode:: BINARY_POWER ()
Implements ``TOS = TOS1 ** TOS``. Implements ``TOS = TOS1 ** TOS``.
.. opcode:: BINARY_MULTIPLY () .. opcode:: BINARY_MULTIPLY
Implements ``TOS = TOS1 * TOS``. Implements ``TOS = TOS1 * TOS``.
.. opcode:: BINARY_FLOOR_DIVIDE () .. opcode:: BINARY_FLOOR_DIVIDE
Implements ``TOS = TOS1 // TOS``. Implements ``TOS = TOS1 // TOS``.
.. opcode:: BINARY_TRUE_DIVIDE () .. opcode:: BINARY_TRUE_DIVIDE
Implements ``TOS = TOS1 / TOS``. Implements ``TOS = TOS1 / TOS``.
.. opcode:: BINARY_MODULO () .. opcode:: BINARY_MODULO
Implements ``TOS = TOS1 % TOS``. Implements ``TOS = TOS1 % TOS``.
.. opcode:: BINARY_ADD () .. opcode:: BINARY_ADD
Implements ``TOS = TOS1 + TOS``. Implements ``TOS = TOS1 + TOS``.
.. opcode:: BINARY_SUBTRACT () .. opcode:: BINARY_SUBTRACT
Implements ``TOS = TOS1 - TOS``. Implements ``TOS = TOS1 - TOS``.
.. opcode:: BINARY_SUBSCR () .. opcode:: BINARY_SUBSCR
Implements ``TOS = TOS1[TOS]``. Implements ``TOS = TOS1[TOS]``.
.. opcode:: BINARY_LSHIFT () .. opcode:: BINARY_LSHIFT
Implements ``TOS = TOS1 << TOS``. Implements ``TOS = TOS1 << TOS``.
.. opcode:: BINARY_RSHIFT () .. opcode:: BINARY_RSHIFT
Implements ``TOS = TOS1 >> TOS``. Implements ``TOS = TOS1 >> TOS``.
.. opcode:: BINARY_AND () .. opcode:: BINARY_AND
Implements ``TOS = TOS1 & TOS``. Implements ``TOS = TOS1 & TOS``.
.. opcode:: BINARY_XOR () .. opcode:: BINARY_XOR
Implements ``TOS = TOS1 ^ TOS``. Implements ``TOS = TOS1 ^ TOS``.
.. opcode:: BINARY_OR () .. opcode:: BINARY_OR
Implements ``TOS = TOS1 | TOS``. Implements ``TOS = TOS1 | TOS``.
**In-place operations**
In-place operations are like binary operations, in that they remove TOS and In-place operations are like binary operations, in that they remove TOS and
TOS1, and push the result back on the stack, but the operation is done in-place TOS1, and push the result back on the stack, but the operation is done in-place
when TOS1 supports it, and the resulting TOS may be (but does not have to be) when TOS1 supports it, and the resulting TOS may be (but does not have to be)
the original TOS1. the original TOS1.
.. opcode:: INPLACE_POWER
.. opcode:: INPLACE_POWER ()
Implements in-place ``TOS = TOS1 ** TOS``. Implements in-place ``TOS = TOS1 ** TOS``.
.. opcode:: INPLACE_MULTIPLY () .. opcode:: INPLACE_MULTIPLY
Implements in-place ``TOS = TOS1 * TOS``. Implements in-place ``TOS = TOS1 * TOS``.
.. opcode:: INPLACE_FLOOR_DIVIDE () .. opcode:: INPLACE_FLOOR_DIVIDE
Implements in-place ``TOS = TOS1 // TOS``. Implements in-place ``TOS = TOS1 // TOS``.
.. opcode:: INPLACE_TRUE_DIVIDE () .. opcode:: INPLACE_TRUE_DIVIDE
Implements in-place ``TOS = TOS1 / TOS``. Implements in-place ``TOS = TOS1 / TOS``.
.. opcode:: INPLACE_MODULO () .. opcode:: INPLACE_MODULO
Implements in-place ``TOS = TOS1 % TOS``. Implements in-place ``TOS = TOS1 % TOS``.
.. opcode:: INPLACE_ADD () .. opcode:: INPLACE_ADD
Implements in-place ``TOS = TOS1 + TOS``. Implements in-place ``TOS = TOS1 + TOS``.
.. opcode:: INPLACE_SUBTRACT () .. opcode:: INPLACE_SUBTRACT
Implements in-place ``TOS = TOS1 - TOS``. Implements in-place ``TOS = TOS1 - TOS``.
.. opcode:: INPLACE_LSHIFT () .. opcode:: INPLACE_LSHIFT
Implements in-place ``TOS = TOS1 << TOS``. Implements in-place ``TOS = TOS1 << TOS``.
.. opcode:: INPLACE_RSHIFT () .. opcode:: INPLACE_RSHIFT
Implements in-place ``TOS = TOS1 >> TOS``. Implements in-place ``TOS = TOS1 >> TOS``.
.. opcode:: INPLACE_AND () .. opcode:: INPLACE_AND
Implements in-place ``TOS = TOS1 & TOS``. Implements in-place ``TOS = TOS1 & TOS``.
.. opcode:: INPLACE_XOR () .. opcode:: INPLACE_XOR
Implements in-place ``TOS = TOS1 ^ TOS``. Implements in-place ``TOS = TOS1 ^ TOS``.
.. opcode:: INPLACE_OR () .. opcode:: INPLACE_OR
Implements in-place ``TOS = TOS1 | TOS``. Implements in-place ``TOS = TOS1 | TOS``.
.. opcode:: STORE_SUBSCR () .. opcode:: STORE_SUBSCR
Implements ``TOS1[TOS] = TOS2``. Implements ``TOS1[TOS] = TOS2``.
.. opcode:: DELETE_SUBSCR () .. opcode:: DELETE_SUBSCR
Implements ``del TOS1[TOS]``. Implements ``del TOS1[TOS]``.
Miscellaneous opcodes.
**Miscellaneous opcodes**
.. opcode:: PRINT_EXPR () .. opcode:: PRINT_EXPR
Implements the expression statement for the interactive mode. TOS is removed Implements the expression statement for the interactive mode. TOS is removed
from the stack and printed. In non-interactive mode, an expression statement is from the stack and printed. In non-interactive mode, an expression statement is
terminated with ``POP_STACK``. terminated with ``POP_STACK``.
.. opcode:: BREAK_LOOP () .. opcode:: BREAK_LOOP
Terminates a loop due to a :keyword:`break` statement. Terminates a loop due to a :keyword:`break` statement.
@ -387,36 +396,35 @@ Miscellaneous opcodes.
Calls ``dict.setitem(TOS1[-i], TOS, TOS1)``. Used to implement dict Calls ``dict.setitem(TOS1[-i], TOS, TOS1)``. Used to implement dict
comprehensions. comprehensions.
For all of the SET_ADD, LIST_APPEND and MAP_ADD instructions, while the For all of the SET_ADD, LIST_APPEND and MAP_ADD instructions, while the
added value or key/value pair is popped off, the container object remains on added value or key/value pair is popped off, the container object remains on
the stack so that it is available for further iterations of the loop. the stack so that it is available for further iterations of the loop.
.. opcode:: RETURN_VALUE () .. opcode:: RETURN_VALUE
Returns with TOS to the caller of the function. Returns with TOS to the caller of the function.
.. opcode:: YIELD_VALUE () .. opcode:: YIELD_VALUE
Pops ``TOS`` and yields it from a :term:`generator`. Pops ``TOS`` and yields it from a :term:`generator`.
.. opcode:: IMPORT_STAR () .. opcode:: IMPORT_STAR
Loads all symbols not starting with ``'_'`` directly from the module TOS to the Loads all symbols not starting with ``'_'`` directly from the module TOS to the
local namespace. The module is popped after loading all names. This opcode local namespace. The module is popped after loading all names. This opcode
implements ``from module import *``. implements ``from module import *``.
.. opcode:: POP_BLOCK () .. opcode:: POP_BLOCK
Removes one block from the block stack. Per frame, there is a stack of blocks, Removes one block from the block stack. Per frame, there is a stack of blocks,
denoting nested loops, try statements, and such. denoting nested loops, try statements, and such.
.. opcode:: POP_EXCEPT () .. opcode:: POP_EXCEPT
Removes one block from the block stack. The popped block must be an exception Removes one block from the block stack. The popped block must be an exception
handler block, as implicitly created when entering an except handler. handler block, as implicitly created when entering an except handler.
@ -424,14 +432,14 @@ the stack so that it is available for further iterations of the loop.
last three popped values are used to restore the exception state. last three popped values are used to restore the exception state.
.. opcode:: END_FINALLY () .. opcode:: END_FINALLY
Terminates a :keyword:`finally` clause. The interpreter recalls whether the Terminates a :keyword:`finally` clause. The interpreter recalls whether the
exception has to be re-raised, or whether the function returns, and continues exception has to be re-raised, or whether the function returns, and continues
with the outer-next block. with the outer-next block.
.. opcode:: LOAD_BUILD_CLASS () .. opcode:: LOAD_BUILD_CLASS
Pushes :func:`builtins.__build_class__` onto the stack. It is later called Pushes :func:`builtins.__build_class__` onto the stack. It is later called
by ``CALL_FUNCTION`` to construct a class. by ``CALL_FUNCTION`` to construct a class.
@ -449,7 +457,7 @@ the stack so that it is available for further iterations of the loop.
:opcode:`UNPACK_SEQUENCE`). :opcode:`UNPACK_SEQUENCE`).
.. opcode:: WITH_CLEANUP () .. opcode:: WITH_CLEANUP
Cleans up the stack when a :keyword:`with` statement block exits. TOS is Cleans up the stack when a :keyword:`with` statement block exits. TOS is
the context manager's :meth:`__exit__` bound method. Below TOS are 1--3 the context manager's :meth:`__exit__` bound method. Below TOS are 1--3
@ -659,7 +667,7 @@ the more significant byte last.
Pushes a try block from a try-except clause onto the block stack. *delta* points Pushes a try block from a try-except clause onto the block stack. *delta* points
to the finally block. to the finally block.
.. opcode:: STORE_MAP () .. opcode:: STORE_MAP
Store a key and value pair in a dictionary. Pops the key and value while leaving Store a key and value pair in a dictionary. Pops the key and value while leaving
the dictionary on the stack. the dictionary on the stack.
@ -775,7 +783,7 @@ the more significant byte last.
variable-arguments tuple, followed by explicit keyword and positional arguments. variable-arguments tuple, followed by explicit keyword and positional arguments.
.. opcode:: HAVE_ARGUMENT () .. opcode:: HAVE_ARGUMENT
This is not really an opcode. It identifies the dividing line between opcodes This is not really an opcode. It identifies the dividing line between opcodes
which don't take arguments ``< HAVE_ARGUMENT`` and those which do ``>= which don't take arguments ``< HAVE_ARGUMENT`` and those which do ``>=

5
Doc/tools/sphinxext/pyspecific.py
View file

@ -5,7 +5,7 @@
Sphinx extension with Python doc-specific markup. Sphinx extension with Python doc-specific markup.
:copyright: 2008, 2009 by Georg Brandl. :copyright: 2008, 2009, 2010 by Georg Brandl.
:license: Python license. :license: Python license.
""" """
@ -149,7 +149,7 @@ import suspicious
import re import re
from sphinx import addnodes from sphinx import addnodes
opcode_sig_re = re.compile(r'(\w+(?:\+\d)?)\s*\((.*)\)') opcode_sig_re = re.compile(r'(\w+(?:\+\d)?)(?:\s*\((.*)\))?')
def parse_opcode_signature(env, sig, signode): def parse_opcode_signature(env, sig, signode):
"""Transform an opcode signature into RST nodes.""" """Transform an opcode signature into RST nodes."""
@ -158,6 +158,7 @@ def parse_opcode_signature(env, sig, signode):
raise ValueError raise ValueError
opname, arglist = m.groups() opname, arglist = m.groups()
signode += addnodes.desc_name(opname, opname) signode += addnodes.desc_name(opname, opname)
if arglist is not None:
paramlist = addnodes.desc_parameterlist() paramlist = addnodes.desc_parameterlist()
signode += paramlist signode += paramlist
paramlist += addnodes.desc_parameter(arglist, arglist) paramlist += addnodes.desc_parameter(arglist, arglist)