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NT try-middle -> except-handler to match AST

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rocky
2017-12-03 06:30:33 -05:00
parent 260bfd176e
commit 5b916567fe
12 changed files with 88 additions and 87 deletions
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4
test/simple_source/bug_pypy27/03_try_return.py
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@@ -1,7 +1,7 @@
# From PyPy 2.7 argparse.py
# PyPY reduces branches as a result of the return statement
# So we need a new rules for try_except and try_middle which we
# suffix with _pypy, e.g. try_except_pypy, and try_middle_pypy
# So we need a new rules for try_except and except_handler which we
# suffix with _pypy, e.g. try_except_pypy, and except_handler_pypy
def call(self, string):
try:
return open(string, self, self._bufsize)

4
test/simple_source/exception/01_try_except.py
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@@ -1,6 +1,6 @@
# Tests:
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
# try_middle COME_FROM
# except_handler COME_FROM
# except_stmt ::= except
try:
@@ -10,7 +10,7 @@ except:
# Tests:
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
# try_middle COME_FROM
# except_handler COME_FROM
# except_stmt ::= except_cond1 except_suite
# except_suite ::= ...

4
test/simple_source/exception/20_try_except.py
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@@ -1,8 +1,8 @@
# Tests:
# forstmt ::= SETUP_LOOP expr _for store for_block POP_BLOCK COME_FROM
# for_block ::= l_stmts_opt JUMP_BACK
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK try_middle COME_FROM
# try_middle ::= jmp_abs COME_FROM except_stmts END_FINALLY
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK except_handler COME_FROM
# except_handler ::= jmp_abs COME_FROM except_stmts END_FINALLY
# Had a bug with the end of the except matching the end of the
# for loop.

14
test/simple_source/exception/25_try_except.py
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@@ -2,12 +2,12 @@
#
# tryfinallystmt ::= SETUP_FINALLY suite_stmts POP_BLOCK LOAD_CONST COME_FROM suite_stmts_opt END_FINALLY
# suite_stmts_opt ::= suite_stmts
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK try_middle COME_FROM
# try_middle ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK except_handler COME_FROM
# except_handler ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
# except_stmt ::= except_cond1 except_suite
# except_cond1 ::= DUP_TOP expr COMPARE_OP jmp_false POP_TOP POP_TOP POP_TOP
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK try_middle COME_FROM
# try_middle ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK except_handler COME_FROM
# except_handler ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
# except_cond1 ::= DUP_TOP expr COMPARE_OP jmp_false POP_TOP POP_TOP POP_TOP
try:
try:
@@ -21,15 +21,15 @@ finally:
x = 4
# Tests Python3:
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK try_middle come_froms
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK except_handler come_froms
# come_froms ::= COME_FROM COME_FROM
# START ::= |- stmts
# stmts ::= sstmt
# sstmt ::= stmt
# stmt ::= try_except
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK try_middle come_froms
# try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK except_handler come_froms
# come_froms ::= COME_FROM
# try_middle ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
# except_handler ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
# Python2 doesn't have the come_froms (which allows for 3 successive COME_FROMs)
# it does place 2 COME_FROMs at the end of this code.

28
uncompyle6/parsers/parse2.py
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@@ -129,24 +129,24 @@ class Python2Parser(PythonParser):
iflaststmtl ::= testexpr c_stmts_opt JUMP_BACK
# this is nested inside a try_except
tryfinallystmt ::= SETUP_FINALLY suite_stmts_opt
POP_BLOCK LOAD_CONST
COME_FROM suite_stmts_opt END_FINALLY
tryfinallystmt ::= SETUP_FINALLY suite_stmts_opt
POP_BLOCK LOAD_CONST
COME_FROM suite_stmts_opt END_FINALLY
# Move to 2.7? 2.6 may use come_froms
tryelsestmtc ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suitec COME_FROM
tryelsestmtc ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
except_handler else_suitec COME_FROM
tryelsestmtl ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suitel COME_FROM
tryelsestmtl ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
except_handler else_suitel COME_FROM
try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle COME_FROM
except_handler COME_FROM
try_middle ::= JUMP_FORWARD COME_FROM except_stmts
END_FINALLY COME_FROM
try_middle ::= jmp_abs COME_FROM except_stmts
END_FINALLY
except_handler ::= JUMP_FORWARD COME_FROM except_stmts
END_FINALLY COME_FROM
except_handler ::= jmp_abs COME_FROM except_stmts
END_FINALLY
except_stmts ::= except_stmt+
@@ -415,8 +415,8 @@ class Python2Parser(PythonParser):
# always be the case.
self.add_unique_rules([
"stmt ::= try_except_pypy",
"try_except_pypy ::= SETUP_EXCEPT suite_stmts_opt try_middle_pypy",
"try_middle_pypy ::= COME_FROM except_stmts END_FINALLY COME_FROM"
"try_except_pypy ::= SETUP_EXCEPT suite_stmts_opt except_handler_pypy",
"except_handler_pypy ::= COME_FROM except_stmts END_FINALLY COME_FROM"
], customize)
continue
elif opname == 'SETUP_FINALLY':

2
uncompyle6/parsers/parse25.py
View File

@@ -33,7 +33,7 @@ class Python25Parser(Python26Parser):
store ::= STORE_NAME
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suite come_froms
except_handler else_suite come_froms
# Python 2.6 omits the LOAD_FAST DELETE_FAST below
# withas is allowed as a "from future" in 2.5

42
uncompyle6/parsers/parse26.py
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@@ -15,43 +15,43 @@ class Python26Parser(Python2Parser):
def p_try_except26(self, args):
"""
except_stmt ::= except_cond3 except_suite
except_cond1 ::= DUP_TOP expr COMPARE_OP
JUMP_IF_FALSE POP_TOP POP_TOP POP_TOP POP_TOP
except_cond3 ::= DUP_TOP expr COMPARE_OP
JUMP_IF_FALSE POP_TOP POP_TOP store POP_TOP
except_stmt ::= except_cond3 except_suite
except_cond1 ::= DUP_TOP expr COMPARE_OP
JUMP_IF_FALSE POP_TOP POP_TOP POP_TOP POP_TOP
except_cond3 ::= DUP_TOP expr COMPARE_OP
JUMP_IF_FALSE POP_TOP POP_TOP store POP_TOP
try_middle ::= JUMP_FORWARD COME_FROM except_stmts
come_from_pop END_FINALLY come_froms
except_handler ::= JUMP_FORWARD COME_FROM except_stmts
come_from_pop END_FINALLY come_froms
try_middle ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY
come_froms
except_handler ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY
come_froms
try_middle ::= jmp_abs COME_FROM except_stmts
POP_TOP END_FINALLY
except_handler ::= jmp_abs COME_FROM except_stmts
POP_TOP END_FINALLY
try_middle ::= jmp_abs COME_FROM except_stmts
END_FINALLY JUMP_FORWARD
except_handler ::= jmp_abs COME_FROM except_stmts
END_FINALLY JUMP_FORWARD
# Sometimes we don't put in COME_FROM to the next statement
# like we do in 2.7. Perhaps we should?
try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle
try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
except_handler
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suite COME_FROM
except_handler else_suite COME_FROM
_ifstmts_jump ::= c_stmts_opt JUMP_FORWARD COME_FROM POP_TOP
_ifstmts_jump ::= c_stmts_opt JUMP_FORWARD COME_FROM POP_TOP
except_suite ::= c_stmts_opt JUMP_FORWARD come_from_pop
except_suite ::= c_stmts_opt JUMP_FORWARD POP_TOP
except_suite ::= c_stmts_opt jmp_abs come_from_pop
except_suite ::= c_stmts_opt JUMP_FORWARD come_from_pop
except_suite ::= c_stmts_opt JUMP_FORWARD POP_TOP
except_suite ::= c_stmts_opt jmp_abs come_from_pop
# This is what happens after a jump where
# we start a new block. For reasons I don't fully
# understand, there is also a value on the top of the stack
come_from_pop ::= COME_FROM POP_TOP
come_froms_pop ::= come_froms POP_TOP
come_froms_pop ::= come_froms POP_TOP
"""
# In contrast to Python 2.7, Python 2.6 has a lot of

2
uncompyle6/parsers/parse27.py
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@@ -48,7 +48,7 @@ class Python27Parser(Python2Parser):
COME_FROM_FINALLY suite_stmts_opt END_FINALLY
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suite COME_FROM
except_handler else_suite COME_FROM
except_stmt ::= except_cond2 except_suite

39
uncompyle6/parsers/parse3.py
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@@ -177,7 +177,7 @@ class Python3Parser(PythonParser):
# COME_FROM targets from the wrong places
try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle opt_come_from_except
except_handler opt_come_from_except
# this is nested inside a try_except
tryfinallystmt ::= SETUP_FINALLY suite_stmts_opt
@@ -185,27 +185,28 @@ class Python3Parser(PythonParser):
COME_FROM_FINALLY suite_stmts_opt END_FINALLY
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suite come_from_except_clauses
except_handler else_suite come_from_except_clauses
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suite come_froms
except_handler else_suite come_froms
tryelsestmtc ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suitec come_from_except_clauses
tryelsestmtc ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
except_handler else_suitec come_from_except_clauses
tryelsestmtl ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suitel come_from_except_clauses
tryelsestmtl ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
except_handler else_suitel come_from_except_clauses
try_middle ::= jmp_abs COME_FROM except_stmts
END_FINALLY
try_middle ::= jmp_abs COME_FROM_EXCEPT except_stmts
END_FINALLY
except_handler ::= jmp_abs COME_FROM except_stmts
END_FINALLY
except_handler ::= jmp_abs COME_FROM_EXCEPT except_stmts
END_FINALLY
# FIXME: remove this
try_middle ::= JUMP_FORWARD COME_FROM except_stmts
END_FINALLY COME_FROM
try_middle ::= JUMP_FORWARD COME_FROM except_stmts
END_FINALLY COME_FROM_EXCEPT
except_handler ::= JUMP_FORWARD COME_FROM except_stmts
END_FINALLY COME_FROM
except_handler ::= JUMP_FORWARD COME_FROM except_stmts
END_FINALLY COME_FROM_EXCEPT
except_stmts ::= except_stmts except_stmt
except_stmts ::= except_stmt
@@ -267,10 +268,10 @@ class Python3Parser(PythonParser):
def p_misc3(self, args):
"""
try_middle ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts
END_FINALLY COME_FROM
try_middle ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts
END_FINALLY COME_FROM_EXCEPT_CLAUSE
except_handler ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts
END_FINALLY COME_FROM
except_handler ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts
END_FINALLY COME_FROM_EXCEPT_CLAUSE
for_block ::= l_stmts_opt come_from_loops JUMP_BACK
for_block ::= l_stmts

24
uncompyle6/parsers/parse32.py
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@@ -29,17 +29,17 @@ class Python32Parser(Python3Parser):
# jump_excepts. But in 3.3 we need them added
try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle
except_handler
jump_excepts come_from_except_clauses
try_middle ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts
END_FINALLY
except_handler ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts
END_FINALLY
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle else_suite
jump_excepts come_from_except_clauses
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
except_handler else_suite
jump_excepts come_from_except_clauses
jump_excepts ::= jump_except+
jump_excepts ::= jump_except+
# Python 3.2+ has more loop optimization that removes
# JUMP_FORWARD in some cases, and hence we also don't
@@ -65,11 +65,11 @@ class Python32Parser(Python3Parser):
def add_custom_rules(self, tokens, customize):
self.remove_rules("""
try_middle ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
try_middle ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM_EXCEPT
try_middle ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts END_FINALLY COME_FROM_EXCEPT_CLAUSE
try_middle ::= jmp_abs COME_FROM except_stmts END_FINALLY
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK try_middle else_suite come_from_except_clauses
except_handler ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM
except_handler ::= JUMP_FORWARD COME_FROM except_stmts END_FINALLY COME_FROM_EXCEPT
except_handler ::= JUMP_FORWARD COME_FROM_EXCEPT except_stmts END_FINALLY COME_FROM_EXCEPT_CLAUSE
except_handler ::= jmp_abs COME_FROM except_stmts END_FINALLY
tryelsestmt ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK except_handler else_suite come_from_except_clauses
whileTruestmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK NOP COME_FROM_LOOP
whileTruestmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK POP_BLOCK NOP COME_FROM_LOOP
""")

2
uncompyle6/parsers/parse33.py
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@@ -22,7 +22,7 @@ class Python33Parser(Python32Parser):
# jump_excepts. But in 3.3 we need them added
try_except ::= SETUP_EXCEPT suite_stmts_opt POP_BLOCK
try_middle
except_handler
jump_excepts come_from_except_clauses
"""

10
uncompyle6/parsers/parse36.py
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@@ -65,14 +65,14 @@ class Python36Parser(Python35Parser):
# In 3.6+, A sequence of statements ending in a RETURN can cause
# JUMP_FORWARD END_FINALLY to be omitted from try middle
except_return ::= POP_TOP POP_TOP POP_TOP return_stmts
try_middle ::= JUMP_FORWARD COME_FROM_EXCEPT except_return
except_return ::= POP_TOP POP_TOP POP_TOP return_stmts
except_handler ::= JUMP_FORWARD COME_FROM_EXCEPT except_return
# Try middle following a return_stmts
try_middle36 ::= COME_FROM_EXCEPT except_stmts END_FINALLY
except_handler36 ::= COME_FROM_EXCEPT except_stmts END_FINALLY
stmt ::= try_except36
try_except36 ::= SETUP_EXCEPT return_stmts try_middle36 opt_come_from_except
stmt ::= try_except36
try_except36 ::= SETUP_EXCEPT return_stmts except_handler36 opt_come_from_except
"""
def add_custom_rules(self, tokens, customize):