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| Filename | /usr/lib64/python2.6/compiler/pyassem.pyc |
| Size | 27.29 kb |
| Permission | rw-r--r-- |
| Owner | apache |
| Create time | 23-Dec-2025 17:41 |
| Last modified | 20-Jun-2019 19:45 |
| Last accessed | 20-Jun-2019 19:45 |
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d G| GHn | d d j o | i i | i � n t | � d j o, t | d t � o | i i | d � n | i i | � d S( Ns i t RETURN_VALUEt YIELD_VALUEi i ( R R ( R R t
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t inst( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR# E s
'c C s¦ xL | i i � D]; } | | i j o q n | i p | i | i � q q Wt | i h � } | i � | i | | i � | i | j o | i | i � n | S( sl Return the blocks in reverse postorder
i.e. each node appears before all of its successors
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R t elementsR R R t
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c C s$ | i | | � | i | | � d S( s" Fixup bad order introduced by DFS.N( t fixupOrderHonorNextt fixupOrderForward( R
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D] \ } } | | | =q]W| g | | | | d +x( t t | � � D] } | | | | <q£WqK Wd S( s Fix one problem with DFS.
The DFS uses child block, but doesn't know about the special
"next" block. As a result, the DFS can order blocks so that a
block isn't next to the right block for implicit control
transfers.
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R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt addInEdgeû s c C s | i i | � d S( N( RM R ( R
R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR þ s c C s@ | i i | � t | i � d j p t t t | i � � d S( Ni ( R R) R! R0 RR RS ( R
R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR s R t
RAISE_VARARGSR t
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CONTINUE_LOOPc C sU y | i d \ } } Wn t t f j
o d SX| | i j o
g | _ n d S( sL Remove bogus edge for unconditional transfers
Each block has a next edge that accounts for implicit control
transfers, e.g. from a JUMP_IF_FALSE to the block that will be
executed if the test is true.
These edges must remain for the current assembler code to
work. If they are removed, the dfs_postorder gets things in
weird orders. However, they shouldn't be there for other
purposes, e.g. conversion to SSA form. This method will
remove the next edge when it follows an unconditional control
transfer.
iÿÿÿÿN( R; t
IndexErrort
ValueErrort _uncond_transferR ( R
RW t arg( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt pruneNext s c C sP | i o2 | i d | i j o | i i | i d � n | i i � | i S( Ni ( R RM R< R% ( R
( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR s !c C sf g } xY | i D]N } t | � d j o q n | d } t | d � o | i | i � q q W| S( s¨ Return all graphs contained within this block.
For example, a MAKE_FUNCTION block will contain a reference to
the graph for the function body.
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t doc( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt setDocstringZ s c C s5 | i | B| _ | t j o | i d | _ n d S( Ni ( Rr R Rp ( R
t flag( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt setFlag] s
c C s | i | @o d Sd S( Ni ( Rr ( R
R� ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt checkFlagb s c C s t | � | _ d S( N( Rx Ru ( R
Rt ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt setFreeVarsf s c C s
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Rt ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt setCellVarsi s c C s� | i t j p t � | i � | i � | i t j p t � | i � | i t j p t � | i � | i t j p t � | i
� S( s Get a Python code object( R| Re R0 t computeStackDeptht flattenGraphRf t convertArgsRg t makeByteCodeRh t
newCodeObject( R
( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt getCodel s
c C sÀ | o t i } | t _ n d } x� | i D]w } | d } | d j o Hn t | � d j o d Gd | G| GH| d } q- d Gd | G| G| d GH| d } q- W| o
| t _ n d S( Ni t
SET_LINENOi s s %3di ( t syst stdoutR; R! ( R
t iot savet pct tt opname( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt dumpx s
c sp h � d } x* � i � D] } t | i � � � | <q Wh � � � � � f d � � � � i d � � _ d S( s¾ Compute the max stack depth.
Approach is to compute the stack effect of each basic block.
Then find the path through the code with the largest total
effect.
c s� | � j o | Sd � | <| � | } | i � } | o/ t g } | D] } | � | | � qK ~ � S| i d j p � � i | � S| Sd S( Ni R ( R t maxRN R ( R t dt childrent _[1]R@ ( R
t max_deptht depthRJ ( s( /usr/lib64/python2.6/compiler/pyassem.pyR� � s
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c C s· | i t j p t � g | _ } d } h } h } x� | i � D]~ } | | | <xa | i � D]S } | i | � t | � d j o | d } q` | d d j o | d } q` q` W| | | <qC Wd } xÜ t t | � � D]È } | | } t | � d j o | d } n | d d j o | d } n | d } | i i
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f | | <qÞ | i i
| � o | | | d f | | <qÞ qÞ Wt | _ d S( s- Arrange the blocks in order and resolve jumpsi i R� i N(
R| Re R0 R; R+ RX R) R! R/ t hasjrelt has_eltt hasjabsRf ( R
R; R� t beginR R R$ R3 R� t opargt offset( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR� ¨ s@
c C sÐ | i t j p t � | i i d | i � | i � x� t t | i � � D]r } | i | } t | � d j oL | \ } } | i
i | d � } | o | | | | � f | i | <q¿ qM qM Wt
| _ d S( s0 Convert arguments from symbolic to concrete formi i N( R| Rf R0 Rs R= Rm t
sort_cellvarsR/ R! R; t _converterst getR Rg ( R
R3 R� R� R¡ t conv( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR� Ð s
(c C s¤ h } x | i D] } d | | <q Wg } | i D] } | | j o | | q2 q2 ~ | _ x | i D]
} | | =qf W| i | i � | _ | i | i | _ d S( sH Sort cellvars in the order of varnames and prune from freevars.
i N( Rv Ry t keysRu Rw ( R
t cellsRk R� ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR£ Þ s
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c C ss t | � } xG t t | � � D]3 } | t | | � j o | | | j o | Sq Wt | � } | i | � | S( s� Return index of name in list, appending if necessary
This routine uses a list instead of a dictionary, because a
dictionary can't store two different keys if the keys have the
same value but different types, e.g. 2 and 2L. The compiler
must treat these two separately, so it does an explicit type
comparison before comparing the values.
( t typeR/ R! R) ( R
Rk Rx R� R3 R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt _lookupNameë s (
c C s3 t | d � o | i � } n | i | | i � S( NR� ( Rc R� Rª Rs ( R
R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt _convert_LOAD_CONSTý s c C s& | i | | i � | i | | i � S( N( Rª Rt Ry ( R
R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt _convert_LOAD_FAST s c C s: | i d j o | i | | i � n | i | | i � S( N( Rq R Rª Ry Rt ( R
R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt _convert_LOAD_NAME s c C s: | i d j o | i | | i � n | i | | i � S( N( Rq R Rª Ry Rt ( R
R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt
_convert_NAME
s c C s9 | i | | i � | i | | i � | i | | i � S( N( Rª Rt Ry Rw ( R
R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt _convert_DEREF s c C s& | i | | i � | i | | i � S( N( Rª Ry Rw ( R
R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt _convert_LOAD_CLOSURE# s c C s | i i | � S( N( t _cmpR2 ( R
R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt _convert_COMPARE_OP( s i t _convert_c C s | i t j p t � t � | _ } x× | i D]Ì } | d } t | � d j o | i | i | � q1 | d } | d j o | i | � q1 n t
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o' | G| GH| i | G| G| GH� q1 Xq1 Wt | _ d S( Ni i R� (
R| Rg R0 t
LineAddrTablet lnotabR; R! t addCodet opnumt nextLinet twobyteR^ Rh ( R
Rµ R� R� R¡ t hit lo( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR� 3 s&
c C së | i t j p t � | i t @d j o
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� | i � t | i � t | i � | i | i | i i | i i � t | i � t | i � � S( Ni i ( R| Rh R0 Rr R R! Ry Rp R t typest CodeTypeR� Rµ R� t getConstst tupleRt Rl Rk t firstlinet getTableRu Rv ( R
t nlocalsRp ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR� M s
c C sQ g } x> | i D]3 } t | t � o | i � } n | i | � q Wt | � S( s� Return a tuple for the const slot of the code object
Must convert references to code (MAKE_FUNCTION) to code
objects recursively.
( Rs R" Ri R� R) R¿ ( R
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R� t disR3 R R� R� R� R£ Rª R¤ R« R¬ t _convert_STORE_FASTt _convert_DELETE_FASTR R® t _convert_STORE_NAMEt _convert_DELETE_NAMEt _convert_IMPORT_NAMEt _convert_IMPORT_FROMt _convert_STORE_ATTRt _convert_LOAD_ATTRt _convert_DELETE_ATTRt _convert_LOAD_GLOBALt _convert_STORE_GLOBALt _convert_DELETE_GLOBALR¯ t _convert_LOAD_DEREFt _convert_STORE_DEREFR° Rx t cmp_opR± R² t localst itemsRk t objR� R· R/ R! t numR� R¾ ( ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyRi 9 sv !
c C s | d d j o d Sd S( Ni RV i ( ( R� ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt isJumpj s Rz c B s) e Z d Z d � Z d � Z d � Z RS( s: Helper for marking func defs with nested tuples in arglistc C s | | _ | | _ d S( N( t countRt ( R
RØ Rt ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR p s c C s d | i | i f S( Ns TupleArg(%s, %s)( RØ Rt ( R
( ( s( /usr/lib64/python2.6/compiler/pyassem.pyRQ s s c C s d | i S( Ns .%d( RØ ( R
( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR{ u s ( RH RI t __doc__R RQ R{ ( ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyRz n s c C sb t | � } | oK xH | D]< } t | t � o& t t i | i � � } | | } q q Wn | S( N( R! R" Rz R t flattenRt ( Rn Rp R` t numNames( ( s( /usr/lib64/python2.6/compiler/pyassem.pyRo x s c C s$ t | t � p t � t | d � S( s/ Convert an int argument into high and low bytesi ( R" t intR0 t divmod( t val( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR¹ � s R´ c B s; e Z d Z d � Z d � Z d � Z d � Z d � Z RS( s( lnotab
This class builds the lnotab, which is documented in compile.c.
Here's a brief recap:
For each SET_LINENO instruction after the first one, two bytes are
added to lnotab. (In some cases, multiple two-byte entries are
added.) The first byte is the distance in bytes between the
instruction for the last SET_LINENO and the current SET_LINENO.
The second byte is offset in line numbers. If either offset is
greater than 255, multiple two-byte entries are added -- see
compile.c for the delicate details.
c C s: g | _ d | _ d | _ d | _ d | _ g | _ d S( Ni ( t codet
codeOffsetRÀ t lastlinet lastoffRµ ( R
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Rn R` ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR¶ � s c C s | i d j o | | _ | | _ nî | i | i } | | i } | d j oà | i i } x0 | d j o" | d � | d � | d 8} q_ Wx6 | d j o( | | � | d � | d 8} d } q� W| d j p
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t linenot addrt linet push( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR¸ ¢ s.
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t StackDepthTrackerc B s� e Z d d � Z h$ d d 6d d 6d d 6d d 6d d 6d d
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executed if the test is true.
These edges must remain for the current assembler code to
work. If they are removed, the dfs_postorder gets things in
weird orders. However, they shouldn't be there for other
purposes, e.g. conversion to SSA form. This method will
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c sp h � d } x* � i � D] } t | i � � � | <q Wh � � � � � f d � � � � i d � � _ d S( s¾ Compute the max stack depth.
Approach is to compute the stack effect of each basic block.
Then find the path through the code with the largest total
effect.
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This routine uses a list instead of a dictionary, because a
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same value but different types, e.g. 2 and 2L. The compiler
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c C sQ g } x> | i D]3 } t | t � o | i � } n | i | � q Wt | � S( s� Return a tuple for the const slot of the code object
Must convert references to code (MAKE_FUNCTION) to code
objects recursively.
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( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR{ u s ( RH RI t __doc__R RQ R{ ( ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyRz n s c C sb t | � } | oK xH | D]< } t | t � o& t t i | i � � } | | } q q Wn | S( N( R! R" Rz R t flattenRt ( Rn Rp R` t numNames( ( s( /usr/lib64/python2.6/compiler/pyassem.pyRo x s c C s$ t | t � p t � t | d � S( s/ Convert an int argument into high and low bytesi ( R" t intR0 t divmod( t val( ( s( /usr/lib64/python2.6/compiler/pyassem.pyR¹ � s R´ c B s; e Z d Z d � Z d � Z d � Z d � Z d � Z RS( s( lnotab
This class builds the lnotab, which is documented in compile.c.
Here's a brief recap:
For each SET_LINENO instruction after the first one, two bytes are
added to lnotab. (In some cases, multiple two-byte entries are
added.) The first byte is the distance in bytes between the
instruction for the last SET_LINENO and the current SET_LINENO.
The second byte is offset in line numbers. If either offset is
greater than 255, multiple two-byte entries are added -- see
compile.c for the delicate details.
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STORE_FASTt IMPORT_STARt IMPORT_NAMEt IMPORT_FROMt LOAD_ATTRi t SETUP_EXCEPTt
SETUP_FINALLYt FOR_ITERt WITH_CLEANUPt BINARY_t LOAD_c C s | d S( Ni ( ( R
RØ ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt UNPACK_SEQUENCE s c C s | d S( Ni ( ( R
RØ ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt BUILD_TUPLE s c C s | d S( Ni ( ( R
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BUILD_LIST s c C s" t | d � \ } } | | d S( Ni i ( RÝ ( R
t argcRº R» ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt
CALL_FUNCTION s c C s | i | � d S( Ni ( R ( R
R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt CALL_FUNCTION_VAR s c C s | i | � d S( Ni ( R ( R
R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt CALL_FUNCTION_KW! s c C s | i | � d S( Ni ( R ( R
R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt CALL_FUNCTION_VAR_KW# s c C s | S( N( ( R
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MAKE_FUNCTION% s c C s | S( N( ( R
R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt MAKE_CLOSURE' s c C s( | d j o d S| d j o d Sd S( Ni iÿÿÿÿi iþÿÿÿ( ( R
R ( ( s( /usr/lib64/python2.6/compiler/pyassem.pyt BUILD_SLICE* s
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