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Kirill Smelkov
cython
Commits
6662537b
Commit
6662537b
authored
May 07, 2010
by
Stefan Behnel
Browse files
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cleanup in parser to make it a better match with the CPython grammar, fix some minor grammar issues
parent
8dbe6a2d
Changes
2
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2 changed files
with
78 additions
and
46 deletions
+78
-46
Cython/Compiler/Parsing.pxd
Cython/Compiler/Parsing.pxd
+11
-6
Cython/Compiler/Parsing.py
Cython/Compiler/Parsing.py
+67
-40
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Cython/Compiler/Parsing.pxd
View file @
6662537b
...
@@ -6,8 +6,8 @@ from Cython.Compiler.Scanning cimport PyrexScanner
...
@@ -6,8 +6,8 @@ from Cython.Compiler.Scanning cimport PyrexScanner
cpdef
p_ident
(
PyrexScanner
s
,
message
=*
)
cpdef
p_ident
(
PyrexScanner
s
,
message
=*
)
cpdef
p_ident_list
(
PyrexScanner
s
)
cpdef
p_ident_list
(
PyrexScanner
s
)
cpdef
p_binop_operator
(
PyrexScanner
s
)
cpdef
p_binop_expr
(
PyrexScanner
s
,
ops
,
p_sub_expr
)
cpdef
p_binop_expr
(
PyrexScanner
s
,
ops
,
p_sub_expr
)
cpdef
p_simple_expr
(
PyrexScanner
s
)
cpdef
p_lambdef
(
PyrexScanner
s
,
bint
allow_conditional
=*
)
cpdef
p_lambdef
(
PyrexScanner
s
,
bint
allow_conditional
=*
)
cpdef
p_lambdef_nocond
(
PyrexScanner
s
)
cpdef
p_lambdef_nocond
(
PyrexScanner
s
)
cpdef
p_test
(
PyrexScanner
s
)
cpdef
p_test
(
PyrexScanner
s
)
...
@@ -17,9 +17,10 @@ cpdef p_rassoc_binop_expr(PyrexScanner s, ops, p_subexpr)
...
@@ -17,9 +17,10 @@ cpdef p_rassoc_binop_expr(PyrexScanner s, ops, p_subexpr)
cpdef
p_and_test
(
PyrexScanner
s
)
cpdef
p_and_test
(
PyrexScanner
s
)
cpdef
p_not_test
(
PyrexScanner
s
)
cpdef
p_not_test
(
PyrexScanner
s
)
cpdef
p_comparison
(
PyrexScanner
s
)
cpdef
p_comparison
(
PyrexScanner
s
)
cpdef
p_test_or_starred_expr
(
PyrexScanner
s
)
cpdef
p_starred_expr
(
PyrexScanner
s
)
cpdef
p_cascaded_cmp
(
PyrexScanner
s
)
cpdef
p_cascaded_cmp
(
PyrexScanner
s
)
cpdef
p_cmp_op
(
PyrexScanner
s
)
cpdef
p_cmp_op
(
PyrexScanner
s
)
cpdef
p_starred_expr
(
PyrexScanner
s
)
cpdef
p_bit_expr
(
PyrexScanner
s
)
cpdef
p_bit_expr
(
PyrexScanner
s
)
cpdef
p_xor_expr
(
PyrexScanner
s
)
cpdef
p_xor_expr
(
PyrexScanner
s
)
cpdef
p_and_expr
(
PyrexScanner
s
)
cpdef
p_and_expr
(
PyrexScanner
s
)
...
@@ -30,6 +31,7 @@ cpdef p_factor(PyrexScanner s)
...
@@ -30,6 +31,7 @@ cpdef p_factor(PyrexScanner s)
cpdef
p_typecast
(
PyrexScanner
s
)
cpdef
p_typecast
(
PyrexScanner
s
)
cpdef
p_sizeof
(
PyrexScanner
s
)
cpdef
p_sizeof
(
PyrexScanner
s
)
cpdef
p_yield_expression
(
PyrexScanner
s
)
cpdef
p_yield_expression
(
PyrexScanner
s
)
cpdef
p_yield_statement
(
PyrexScanner
s
)
cpdef
p_power
(
PyrexScanner
s
)
cpdef
p_power
(
PyrexScanner
s
)
cpdef
p_new_expr
(
PyrexScanner
s
)
cpdef
p_new_expr
(
PyrexScanner
s
)
cpdef
p_trailer
(
PyrexScanner
s
,
node1
)
cpdef
p_trailer
(
PyrexScanner
s
,
node1
)
...
@@ -52,9 +54,12 @@ cpdef p_comp_for(PyrexScanner s, body)
...
@@ -52,9 +54,12 @@ cpdef p_comp_for(PyrexScanner s, body)
cpdef
p_comp_if
(
PyrexScanner
s
,
body
)
cpdef
p_comp_if
(
PyrexScanner
s
,
body
)
cpdef
p_dict_or_set_maker
(
PyrexScanner
s
)
cpdef
p_dict_or_set_maker
(
PyrexScanner
s
)
cpdef
p_backquote_expr
(
PyrexScanner
s
)
cpdef
p_backquote_expr
(
PyrexScanner
s
)
cpdef
p_simple_expr_list
(
PyrexScanner
s
)
cpdef
p_simple_expr_list
(
PyrexScanner
s
,
expr
=*
)
cpdef
p_
expr
(
PyrexScanner
s
)
cpdef
p_
test_or_starred_expr_list
(
s
,
expr
=*
)
cpdef
p_testlist
(
PyrexScanner
s
)
cpdef
p_testlist
(
PyrexScanner
s
)
cpdef
p_testlist_star_expr
(
PyrexScanner
s
)
cpdef
p_testlist_comp
(
PyrexScanner
s
)
cpdef
p_genexp
(
PyrexScanner
s
,
expr
)
#-------------------------------------------------------
#-------------------------------------------------------
#
#
...
@@ -83,12 +88,12 @@ cpdef p_if_clause(PyrexScanner s)
...
@@ -83,12 +88,12 @@ cpdef p_if_clause(PyrexScanner s)
cpdef
p_else_clause
(
PyrexScanner
s
)
cpdef
p_else_clause
(
PyrexScanner
s
)
cpdef
p_while_statement
(
PyrexScanner
s
)
cpdef
p_while_statement
(
PyrexScanner
s
)
cpdef
p_for_statement
(
PyrexScanner
s
)
cpdef
p_for_statement
(
PyrexScanner
s
)
cpdef
p_for_bounds
(
PyrexScanner
s
)
cpdef
p_for_bounds
(
PyrexScanner
s
,
bint
allow_testlist
=
*
)
cpdef
p_for_from_relation
(
PyrexScanner
s
)
cpdef
p_for_from_relation
(
PyrexScanner
s
)
cpdef
p_for_from_step
(
PyrexScanner
s
)
cpdef
p_for_from_step
(
PyrexScanner
s
)
cpdef
p_target
(
PyrexScanner
s
,
terminator
)
cpdef
p_target
(
PyrexScanner
s
,
terminator
)
cpdef
p_for_target
(
PyrexScanner
s
)
cpdef
p_for_target
(
PyrexScanner
s
)
cpdef
p_for_iterator
(
PyrexScanner
s
)
cpdef
p_for_iterator
(
PyrexScanner
s
,
bint
allow_testlist
=
*
)
cpdef
p_try_statement
(
PyrexScanner
s
)
cpdef
p_try_statement
(
PyrexScanner
s
)
cpdef
p_except_clause
(
PyrexScanner
s
)
cpdef
p_except_clause
(
PyrexScanner
s
)
cpdef
p_include_statement
(
PyrexScanner
s
,
ctx
)
cpdef
p_include_statement
(
PyrexScanner
s
,
ctx
)
...
...
Cython/Compiler/Parsing.py
View file @
6662537b
...
@@ -184,6 +184,12 @@ def p_comparison(s):
...
@@ -184,6 +184,12 @@ def p_comparison(s):
n1
.
cascade
=
p_cascaded_cmp
(
s
)
n1
.
cascade
=
p_cascaded_cmp
(
s
)
return
n1
return
n1
def
p_test_or_starred_expr
(
s
):
if
s
.
sy
==
'*'
:
return
p_starred_expr
(
s
)
else
:
return
p_test
(
s
)
def
p_starred_expr
(
s
):
def
p_starred_expr
(
s
):
pos
=
s
.
position
()
pos
=
s
.
position
()
if
s
.
sy
==
'*'
:
if
s
.
sy
==
'*'
:
...
@@ -326,7 +332,7 @@ def p_yield_expression(s):
...
@@ -326,7 +332,7 @@ def p_yield_expression(s):
pos
=
s
.
position
()
pos
=
s
.
position
()
s
.
next
()
s
.
next
()
if
s
.
sy
!=
')'
and
s
.
sy
not
in
statement_terminators
:
if
s
.
sy
!=
')'
and
s
.
sy
not
in
statement_terminators
:
arg
=
p_
expr
(
s
)
arg
=
p_
testlist
(
s
)
else
:
else
:
arg
=
None
arg
=
None
return
ExprNodes
.
YieldExprNode
(
pos
,
arg
=
arg
)
return
ExprNodes
.
YieldExprNode
(
pos
,
arg
=
arg
)
...
@@ -776,10 +782,11 @@ def p_list_maker(s):
...
@@ -776,10 +782,11 @@ def p_list_maker(s):
return
ExprNodes
.
ComprehensionNode
(
return
ExprNodes
.
ComprehensionNode
(
pos
,
loop
=
loop
,
append
=
append
,
target
=
target
)
pos
,
loop
=
loop
,
append
=
append
,
target
=
target
)
else
:
else
:
exprs
=
[
expr
]
if
s
.
sy
==
','
:
if
s
.
sy
==
','
:
s
.
next
()
s
.
next
()
exprs
+=
p_simple_expr_list
(
s
)
exprs
=
p_simple_expr_list
(
s
,
expr
)
else
:
exprs
=
[
expr
]
s
.
expect
(
']'
)
s
.
expect
(
']'
)
return
ExprNodes
.
ListNode
(
pos
,
args
=
exprs
)
return
ExprNodes
.
ListNode
(
pos
,
args
=
exprs
)
...
@@ -796,7 +803,7 @@ def p_comp_for(s, body):
...
@@ -796,7 +803,7 @@ def p_comp_for(s, body):
# s.sy == 'for'
# s.sy == 'for'
pos
=
s
.
position
()
pos
=
s
.
position
()
s
.
next
()
s
.
next
()
kw
=
p_for_bounds
(
s
)
kw
=
p_for_bounds
(
s
,
allow_testlist
=
False
)
kw
[
'else_clause'
]
=
None
kw
[
'else_clause'
]
=
None
kw
[
'body'
]
=
p_comp_iter
(
s
,
body
)
kw
[
'body'
]
=
p_comp_iter
(
s
,
body
)
return
Nodes
.
ForStatNode
(
pos
,
**
kw
)
return
Nodes
.
ForStatNode
(
pos
,
**
kw
)
...
@@ -874,44 +881,62 @@ def p_dict_or_set_maker(s):
...
@@ -874,44 +881,62 @@ def p_dict_or_set_maker(s):
s
.
expect
(
'}'
)
s
.
expect
(
'}'
)
return
ExprNodes
.
DictNode
(
pos
,
key_value_pairs
=
[])
return
ExprNodes
.
DictNode
(
pos
,
key_value_pairs
=
[])
# NOTE: no longer in Py3 :)
def
p_backquote_expr
(
s
):
def
p_backquote_expr
(
s
):
# s.sy == '`'
# s.sy == '`'
pos
=
s
.
position
()
pos
=
s
.
position
()
s
.
next
()
s
.
next
()
arg
=
p_expr
(
s
)
args
=
[
p_test
(
s
)]
while
s
.
sy
==
','
:
s
.
next
()
args
.
append
(
p_test
(
s
))
s
.
expect
(
'`'
)
s
.
expect
(
'`'
)
if
len
(
args
)
==
1
:
arg
=
args
[
0
]
else
:
arg
=
ExprNodes
.
TupleNode
(
pos
,
args
=
args
)
return
ExprNodes
.
BackquoteNode
(
pos
,
arg
=
arg
)
return
ExprNodes
.
BackquoteNode
(
pos
,
arg
=
arg
)
def
p_simple_expr_list
(
s
):
def
p_simple_expr_list
(
s
,
expr
=
None
):
exprs
=
[]
exprs
=
expr
is
not
None
and
[
expr
]
or
[]
while
s
.
sy
not
in
expr_terminators
:
while
s
.
sy
not
in
expr_terminators
:
expr
=
p_test
(
s
)
exprs
.
append
(
p_test
(
s
)
)
exprs
.
append
(
expr
)
if
s
.
sy
!=
','
:
break
s
.
next
()
return
exprs
def
p_test_or_starred_expr_list
(
s
,
expr
=
None
):
exprs
=
expr
is
not
None
and
[
expr
]
or
[]
while
s
.
sy
not
in
expr_terminators
:
exprs
.
append
(
p_test_or_starred_expr
(
s
)
)
if
s
.
sy
!=
','
:
if
s
.
sy
!=
','
:
break
break
s
.
next
()
s
.
next
()
return
exprs
return
exprs
def
p_expr
(
s
):
#testlist: test (',' test)* [',']
def
p_testlist
(
s
):
pos
=
s
.
position
()
pos
=
s
.
position
()
expr
=
p_test
(
s
)
expr
=
p_test
(
s
)
if
s
.
sy
==
','
:
if
s
.
sy
==
','
:
s
.
next
()
s
.
next
()
exprs
=
[
expr
]
+
p_simple_expr_list
(
s
)
exprs
=
p_simple_expr_list
(
s
,
expr
)
return
ExprNodes
.
TupleNode
(
pos
,
args
=
exprs
)
return
ExprNodes
.
TupleNode
(
pos
,
args
=
exprs
)
else
:
else
:
return
expr
return
expr
# testlist_star_expr: (test|star_expr) ( comp_for | (',' (test|star_expr))* [','] )
#testlist: test (',' test)* [',']
def
p_testlist_star_expr
(
s
):
# differs from p_expr only in the fact that it cannot contain conditional expressions
def
p_testlist
(
s
):
pos
=
s
.
position
()
pos
=
s
.
position
()
expr
=
p_test
(
s
)
expr
=
p_test
_or_starred_expr
(
s
)
if
s
.
sy
==
','
:
if
s
.
sy
==
','
:
s
.
next
()
s
.
next
()
return
p_testlist_tuple
(
s
,
pos
,
expr
)
exprs
=
p_test_or_starred_expr_list
(
s
,
expr
)
return
ExprNodes
.
TupleNode
(
pos
,
args
=
exprs
)
else
:
else
:
return
expr
return
expr
...
@@ -919,24 +944,16 @@ def p_testlist(s):
...
@@ -919,24 +944,16 @@ def p_testlist(s):
def
p_testlist_comp
(
s
):
def
p_testlist_comp
(
s
):
pos
=
s
.
position
()
pos
=
s
.
position
()
expr
=
p_test
(
s
)
expr
=
p_test
_or_starred_expr
(
s
)
if
s
.
sy
==
','
:
if
s
.
sy
==
','
:
s
.
next
()
s
.
next
()
return
p_testlist_tuple
(
s
,
pos
,
expr
)
exprs
=
p_test_or_starred_expr_list
(
s
,
expr
)
return
ExprNodes
.
TupleNode
(
pos
,
args
=
exprs
)
elif
s
.
sy
==
'for'
:
elif
s
.
sy
==
'for'
:
return
p_genexp
(
s
,
expr
)
return
p_genexp
(
s
,
expr
)
else
:
else
:
return
expr
return
expr
def
p_testlist_tuple
(
s
,
pos
,
expr
):
exprs
=
[
expr
]
while
s
.
sy
not
in
expr_terminators
:
exprs
.
append
(
p_test
(
s
))
if
s
.
sy
!=
','
:
break
s
.
next
()
return
ExprNodes
.
TupleNode
(
pos
,
args
=
exprs
)
def
p_genexp
(
s
,
expr
):
def
p_genexp
(
s
,
expr
):
# s.sy == 'for'
# s.sy == 'for'
loop
=
p_comp_for
(
s
,
ExprNodes
.
YieldExprNode
(
expr
.
pos
,
arg
=
expr
))
loop
=
p_comp_for
(
s
,
ExprNodes
.
YieldExprNode
(
expr
.
pos
,
arg
=
expr
))
...
@@ -958,10 +975,14 @@ def p_global_statement(s):
...
@@ -958,10 +975,14 @@ def p_global_statement(s):
return
Nodes
.
GlobalNode
(
pos
,
names
=
names
)
return
Nodes
.
GlobalNode
(
pos
,
names
=
names
)
def
p_expression_or_assignment
(
s
):
def
p_expression_or_assignment
(
s
):
expr_list
=
[
p_expr
(
s
)]
expr_list
=
[
p_
testlist_star_
expr
(
s
)]
while
s
.
sy
==
'='
:
while
s
.
sy
==
'='
:
s
.
next
()
s
.
next
()
expr_list
.
append
(
p_expr
(
s
))
if
s
.
sy
==
'yield'
:
expr
=
p_yield_expression
(
s
)
else
:
expr
=
p_testlist_star_expr
(
s
)
expr_list
.
append
(
expr
)
if
len
(
expr_list
)
==
1
:
if
len
(
expr_list
)
==
1
:
if
re
.
match
(
r"([+*/\
%^
\&|-]|<<|>>|\
*
\*|//)="
,
s
.
sy
):
if
re
.
match
(
r"([+*/\
%^
\&|-]|<<|>>|\
*
\*|//)="
,
s
.
sy
):
lhs
=
expr_list
[
0
]
lhs
=
expr_list
[
0
]
...
@@ -969,7 +990,10 @@ def p_expression_or_assignment(s):
...
@@ -969,7 +990,10 @@ def p_expression_or_assignment(s):
error
(
lhs
.
pos
,
"Illegal operand for inplace operation."
)
error
(
lhs
.
pos
,
"Illegal operand for inplace operation."
)
operator
=
s
.
sy
[:
-
1
]
operator
=
s
.
sy
[:
-
1
]
s
.
next
()
s
.
next
()
rhs
=
p_expr
(
s
)
if
s
.
sy
==
'yield'
:
rhs
=
p_yield_expression
(
s
)
else
:
rhs
=
p_testlist
(
s
)
return
Nodes
.
InPlaceAssignmentNode
(
lhs
.
pos
,
operator
=
operator
,
lhs
=
lhs
,
rhs
=
rhs
)
return
Nodes
.
InPlaceAssignmentNode
(
lhs
.
pos
,
operator
=
operator
,
lhs
=
lhs
,
rhs
=
rhs
)
expr
=
expr_list
[
0
]
expr
=
expr_list
[
0
]
if
isinstance
(
expr
,
(
ExprNodes
.
UnicodeNode
,
ExprNodes
.
StringNode
,
ExprNodes
.
BytesNode
)):
if
isinstance
(
expr
,
(
ExprNodes
.
UnicodeNode
,
ExprNodes
.
StringNode
,
ExprNodes
.
BytesNode
)):
...
@@ -1059,7 +1083,7 @@ def p_return_statement(s):
...
@@ -1059,7 +1083,7 @@ def p_return_statement(s):
pos
=
s
.
position
()
pos
=
s
.
position
()
s
.
next
()
s
.
next
()
if
s
.
sy
not
in
statement_terminators
:
if
s
.
sy
not
in
statement_terminators
:
value
=
p_
expr
(
s
)
value
=
p_
testlist
(
s
)
else
:
else
:
value
=
None
value
=
None
return
Nodes
.
ReturnStatNode
(
pos
,
value
=
value
)
return
Nodes
.
ReturnStatNode
(
pos
,
value
=
value
)
...
@@ -1273,16 +1297,16 @@ def p_for_statement(s):
...
@@ -1273,16 +1297,16 @@ def p_for_statement(s):
# s.sy == 'for'
# s.sy == 'for'
pos
=
s
.
position
()
pos
=
s
.
position
()
s
.
next
()
s
.
next
()
kw
=
p_for_bounds
(
s
)
kw
=
p_for_bounds
(
s
,
allow_testlist
=
True
)
kw
[
'body'
]
=
p_suite
(
s
)
kw
[
'body'
]
=
p_suite
(
s
)
kw
[
'else_clause'
]
=
p_else_clause
(
s
)
kw
[
'else_clause'
]
=
p_else_clause
(
s
)
return
Nodes
.
ForStatNode
(
pos
,
**
kw
)
return
Nodes
.
ForStatNode
(
pos
,
**
kw
)
def
p_for_bounds
(
s
):
def
p_for_bounds
(
s
,
allow_testlist
=
True
):
target
=
p_for_target
(
s
)
target
=
p_for_target
(
s
)
if
s
.
sy
==
'in'
:
if
s
.
sy
==
'in'
:
s
.
next
()
s
.
next
()
iterator
=
p_for_iterator
(
s
)
iterator
=
p_for_iterator
(
s
,
allow_testlist
)
return
{
'target'
:
target
,
'iterator'
:
iterator
}
return
{
'target'
:
target
,
'iterator'
:
iterator
}
else
:
else
:
if
s
.
sy
==
'from'
:
if
s
.
sy
==
'from'
:
...
@@ -1353,9 +1377,12 @@ def p_target(s, terminator):
...
@@ -1353,9 +1377,12 @@ def p_target(s, terminator):
def
p_for_target
(
s
):
def
p_for_target
(
s
):
return
p_target
(
s
,
'in'
)
return
p_target
(
s
,
'in'
)
def
p_for_iterator
(
s
):
def
p_for_iterator
(
s
,
allow_testlist
=
True
):
pos
=
s
.
position
()
pos
=
s
.
position
()
if
allow_testlist
:
expr
=
p_testlist
(
s
)
expr
=
p_testlist
(
s
)
else
:
expr
=
p_or_test
(
s
)
return
ExprNodes
.
IteratorNode
(
pos
,
sequence
=
expr
)
return
ExprNodes
.
IteratorNode
(
pos
,
sequence
=
expr
)
def
p_try_statement
(
s
):
def
p_try_statement
(
s
):
...
@@ -1462,7 +1489,7 @@ def p_with_statement(s):
...
@@ -1462,7 +1489,7 @@ def p_with_statement(s):
else
:
else
:
error
(
pos
,
"Syntax error in template function declaration"
)
error
(
pos
,
"Syntax error in template function declaration"
)
else
:
else
:
manager
=
p_
expr
(
s
)
manager
=
p_
test
(
s
)
target
=
None
target
=
None
if
s
.
sy
==
'IDENT'
and
s
.
systring
==
'as'
:
if
s
.
sy
==
'IDENT'
and
s
.
systring
==
'as'
:
s
.
next
()
s
.
next
()
...
@@ -1525,7 +1552,7 @@ def p_simple_statement_list(s, ctx, first_statement = 0):
...
@@ -1525,7 +1552,7 @@ def p_simple_statement_list(s, ctx, first_statement = 0):
def
p_compile_time_expr
(
s
):
def
p_compile_time_expr
(
s
):
old
=
s
.
compile_time_expr
old
=
s
.
compile_time_expr
s
.
compile_time_expr
=
1
s
.
compile_time_expr
=
1
expr
=
p_
expr
(
s
)
expr
=
p_
testlist
(
s
)
s
.
compile_time_expr
=
old
s
.
compile_time_expr
=
old
return
expr
return
expr
...
@@ -1996,7 +2023,7 @@ def p_c_array_declarator(s, base):
...
@@ -1996,7 +2023,7 @@ def p_c_array_declarator(s, base):
pos
=
s
.
position
()
pos
=
s
.
position
()
s
.
next
()
# '['
s
.
next
()
# '['
if
s
.
sy
!=
']'
:
if
s
.
sy
!=
']'
:
dim
=
p_
expr
(
s
)
dim
=
p_
testlist
(
s
)
else
:
else
:
dim
=
None
dim
=
None
s
.
expect
(
']'
)
s
.
expect
(
']'
)
...
...
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