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Loops in Python 2.4-2.6 loop come_from

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Looks like Python 2.4-2.6 may have a COME_FROM(_LOOP)
before the jump_back.

Fixes Issue #123
This commit is contained in:
rocky
2017-07-05 06:12:14 -04:00
parent 0893652943
commit d332bde104
3 changed files with 27 additions and 1 deletions
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9
uncompyle6/parsers/parse26.py
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@@ -84,6 +84,12 @@ class Python26Parser(Python2Parser):
ja_cf_pop ::= JUMP_ABSOLUTE come_froms POP_TOP
jf_cf_pop ::= JUMP_FORWARD come_froms POP_TOP
# The first optional COME_FROM when it appears is really
# COME_FROM_LOOP, but in <= 2.6 we don't distinguish
# this
cf_jb_cf_pop ::= _come_from JUMP_BACK come_froms POP_TOP
bp_come_from ::= POP_BLOCK COME_FROM
jb_bp_come_from ::= JUMP_BACK bp_come_from
@@ -111,7 +117,8 @@ class Python26Parser(Python2Parser):
break_stmt ::= BREAK_LOOP JUMP_BACK
# Semantic actions want else_suitel to be at index 3
ifelsestmtl ::= testexpr c_stmts_opt jb_cf_pop else_suitel
ifelsestmtl ::= testexpr c_stmts_opt cf_jb_cf_pop else_suitel
ifelsestmtc ::= testexpr c_stmts_opt ja_cf_pop else_suitec
# Semantic actions want suite_stmts_opt to be at index 3