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Small changes to document some of the complexity.

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rocky
2019-06-23 20:00:00 -04:00
parent 69823af553
commit e26c7407a0
4 changed files with 12 additions and 2 deletions
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1
uncompyle6/parsers/parse26.py
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@@ -175,6 +175,7 @@ class Python26Parser(Python2Parser):
iflaststmt ::= testexpr_then c_stmts_opt JUMP_ABSOLUTE come_froms POP_TOP iflaststmt ::= testexpr_then c_stmts_opt JUMP_ABSOLUTE come_froms POP_TOP
iflaststmt ::= testexpr c_stmts_opt JUMP_ABSOLUTE come_froms POP_TOP iflaststmt ::= testexpr c_stmts_opt JUMP_ABSOLUTE come_froms POP_TOP
# "if"/"else" statement that ends in a RETURN
ifelsestmtr ::= testexpr_then return_if_stmts returns ifelsestmtr ::= testexpr_then return_if_stmts returns
testexpr_then ::= testtrue_then testexpr_then ::= testtrue_then

2
uncompyle6/parsers/parse27.py
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@@ -180,6 +180,8 @@ class Python27Parser(Python2Parser):
ifelsestmtc ::= testexpr c_stmts_opt JUMP_ABSOLUTE else_suitec ifelsestmtc ::= testexpr c_stmts_opt JUMP_ABSOLUTE else_suitec
ifelsestmtl ::= testexpr c_stmts_opt JUMP_BACK else_suitel ifelsestmtl ::= testexpr c_stmts_opt JUMP_BACK else_suitel
ifelsestmtl ::= testexpr c_stmts_opt CONTINUE else_suitel ifelsestmtl ::= testexpr c_stmts_opt CONTINUE else_suitel
# "if"/"else" statement that ends in a RETURN
ifelsestmtr ::= testexpr return_if_stmts COME_FROM returns ifelsestmtr ::= testexpr return_if_stmts COME_FROM returns
# Common with 2.6 # Common with 2.6

1
uncompyle6/parsers/parse3.py
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@@ -177,6 +177,7 @@ class Python3Parser(PythonParser):
ifelsestmtc ::= testexpr c_stmts_opt JUMP_ABSOLUTE else_suitec ifelsestmtc ::= testexpr c_stmts_opt JUMP_ABSOLUTE else_suitec
ifelsestmtc ::= testexpr c_stmts_opt jump_absolute_else else_suitec ifelsestmtc ::= testexpr c_stmts_opt jump_absolute_else else_suitec
# "if"/"else" statement that ends in a RETURN
ifelsestmtr ::= testexpr return_if_stmts returns ifelsestmtr ::= testexpr return_if_stmts returns
ifelsestmtl ::= testexpr c_stmts_opt JUMP_BACK else_suitel ifelsestmtl ::= testexpr c_stmts_opt JUMP_BACK else_suitel

10
uncompyle6/semantics/consts.py
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@@ -350,11 +350,17 @@ TABLE_DIRECT = {
'testtrue': ( 'not %p', 'testtrue': ( 'not %p',
(0, PRECEDENCE['unary_not']) ), (0, PRECEDENCE['unary_not']) ),
# Generally the args here are 0: (some sort of) "testexpr",
# 1: (some sort of) "cstmts_opt",
# 2 or 3: "else_suite"
# But unfortunately there are irregularities, For example, 2.6- uses "testexpr_then"
# and sometimes "cstmts" instead of "cstmts_opt" happens.
# Down the line we might isolate these into version-specific rules.
'ifelsestmt': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ), 'ifelsestmt': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ),
'ifelsestmtc': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ), 'ifelsestmtc': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ),
'ifelsestmtl': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ), 'ifelsestmtl': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ),
'ifelsestmtr': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 2 ), 'ifelsestmtr': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 2 ),
'ifelsestmtr2': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-\n\n', 0, 1, 3 ), # has COME_FROM 'ifelsestmtr2': ( '%|if %c:\n%+%c%-%|else:\n%+%c%-\n\n', 0, 1, 3 ), # has COME_FROM in position 2
# "elif" forms are not generated by the parser but are created through tree # "elif" forms are not generated by the parser but are created through tree
@@ -364,7 +370,7 @@ TABLE_DIRECT = {
'elifstmt': ( '%|elif %c:\n%+%c%-', 0, 1 ), 'elifstmt': ( '%|elif %c:\n%+%c%-', 0, 1 ),
'elifelsestmt': ( '%|elif %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ), 'elifelsestmt': ( '%|elif %c:\n%+%c%-%|else:\n%+%c%-', 0, 1, 3 ),
'elifelsestmtr': ( '%|elif %c:\n%+%c%-%|else:\n%+%c%-\n\n', 0, 1, 2 ), 'elifelsestmtr': ( '%|elif %c:\n%+%c%-%|else:\n%+%c%-\n\n', 0, 1, 2 ),
'elifelsestmtr2': ( '%|elif %c:\n%+%c%-%|else:\n%+%c%-\n\n', 0, 1, 3 ), # has COME_FROM 'elifelsestmtr2': ( '%|elif %c:\n%+%c%-%|else:\n%+%c%-\n\n', 0, 1, 3 ), # has COME_FROM in position 2
'whileTruestmt': ( '%|while True:\n%+%c%-\n\n', 1 ), 'whileTruestmt': ( '%|while True:\n%+%c%-\n\n', 1 ),
'whilestmt': ( '%|while %c:\n%+%c%-\n\n', 1, 2 ), 'whilestmt': ( '%|while %c:\n%+%c%-\n\n', 1, 2 ),