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Boxiang Sun
pyodide
Commits
a83e98b7
Commit
a83e98b7
authored
Nov 12, 2018
by
Michael Droettboom
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Plain Diff
Refactor python2js
parent
02e59bb2
Changes
1
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1 changed file
with
142 additions
and
114 deletions
+142
-114
src/python2js.c
src/python2js.c
+142
-114
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src/python2js.c
View file @
a83e98b7
...
...
@@ -118,129 +118,161 @@ int
_python2js_cache
(
PyObject
*
x
,
PyObject
*
map
);
static
int
_python2js
(
PyObject
*
x
,
PyObject
*
map
)
_python2js
_float
(
PyObject
*
x
)
{
if
(
x
==
Py_None
)
{
return
hiwire_undefined
();
}
else
if
(
x
==
Py_True
)
{
return
hiwire_true
();
}
else
if
(
x
==
Py_False
)
{
return
hiwire_false
();
}
else
if
(
PyLong_Check
(
x
))
{
int
overflow
;
long
x_long
=
PyLong_AsLongAndOverflow
(
x
,
&
overflow
);
if
(
x_long
==
-
1
)
{
if
(
overflow
)
{
PyObject
*
py_float
=
PyNumber_Float
(
x
);
if
(
py_float
==
NULL
)
{
return
HW_ERROR
;
}
double
x_double
=
PyFloat_AsDouble
(
py_float
);
Py_DECREF
(
py_float
);
if
(
x_double
==
-
1
.
0
&&
PyErr_Occurred
())
{
return
HW_ERROR
;
}
return
hiwire_double
(
x_double
);
}
else
if
(
PyErr_Occurred
())
{
double
x_double
=
PyFloat_AsDouble
(
x
);
if
(
x_double
==
-
1
.
0
&&
PyErr_Occurred
())
{
return
HW_ERROR
;
}
return
hiwire_double
(
x_double
);
}
static
int
_python2js_long
(
PyObject
*
x
)
{
int
overflow
;
long
x_long
=
PyLong_AsLongAndOverflow
(
x
,
&
overflow
);
if
(
x_long
==
-
1
)
{
if
(
overflow
)
{
PyObject
*
py_float
=
PyNumber_Float
(
x
);
if
(
py_float
==
NULL
)
{
return
HW_ERROR
;
}
}
return
hiwire_int
(
x_long
);
}
else
if
(
PyFloat_Check
(
x
))
{
double
x_double
=
PyFloat_AsDouble
(
x
);
if
(
x_double
==
-
1
.
0
&&
PyErr_Occurred
())
{
return
_python2js_float
(
py_float
);
}
else
if
(
PyErr_Occurred
())
{
return
HW_ERROR
;
}
return
hiwire_double
(
x_double
);
}
else
if
(
PyUnicode_Check
(
x
))
{
int
kind
=
PyUnicode_KIND
(
x
);
int
data
=
(
int
)
PyUnicode_DATA
(
x
);
int
length
=
(
int
)
PyUnicode_GET_LENGTH
(
x
);
switch
(
kind
)
{
case
PyUnicode_1BYTE_KIND
:
return
hiwire_string_ucs1
(
data
,
length
);
case
PyUnicode_2BYTE_KIND
:
return
hiwire_string_ucs2
(
data
,
length
);
case
PyUnicode_4BYTE_KIND
:
return
hiwire_string_ucs4
(
data
,
length
);
default:
PyErr_SetString
(
PyExc_ValueError
,
"Unknown Unicode KIND"
);
return
HW_ERROR
;
}
}
else
if
(
PyBytes_Check
(
x
))
{
char
*
x_buff
;
Py_ssize_t
length
;
if
(
PyBytes_AsStringAndSize
(
x
,
&
x_buff
,
&
length
))
{
}
return
hiwire_int
(
x_long
);
}
static
int
_python2js_unicode
(
PyObject
*
x
)
{
int
kind
=
PyUnicode_KIND
(
x
);
int
data
=
(
int
)
PyUnicode_DATA
(
x
);
int
length
=
(
int
)
PyUnicode_GET_LENGTH
(
x
);
switch
(
kind
)
{
case
PyUnicode_1BYTE_KIND
:
return
hiwire_string_ucs1
(
data
,
length
);
case
PyUnicode_2BYTE_KIND
:
return
hiwire_string_ucs2
(
data
,
length
);
case
PyUnicode_4BYTE_KIND
:
return
hiwire_string_ucs4
(
data
,
length
);
default:
PyErr_SetString
(
PyExc_ValueError
,
"Unknown Unicode KIND"
);
return
HW_ERROR
;
}
return
hiwire_bytes
((
int
)(
void
*
)
x_buff
,
length
);
}
else
if
(
JsProxy_Check
(
x
))
{
return
JsProxy_AsJs
(
x
);
}
else
if
(
PyList_Check
(
x
)
||
is_type_name
(
x
,
"<class 'numpy.ndarray'>"
))
{
int
jsarray
=
hiwire_array
();
if
(
_python2js_add_to_cache
(
map
,
x
,
jsarray
))
{
}
}
static
int
_python2js_bytes
(
PyObject
*
x
)
{
char
*
x_buff
;
Py_ssize_t
length
;
if
(
PyBytes_AsStringAndSize
(
x
,
&
x_buff
,
&
length
))
{
return
HW_ERROR
;
}
return
hiwire_bytes
((
int
)(
void
*
)
x_buff
,
length
);
}
static
int
_python2js_sequence
(
PyObject
*
x
,
PyObject
*
map
)
{
int
jsarray
=
hiwire_array
();
if
(
_python2js_add_to_cache
(
map
,
x
,
jsarray
))
{
hiwire_decref
(
jsarray
);
return
HW_ERROR
;
}
size_t
length
=
PySequence_Size
(
x
);
for
(
size_t
i
=
0
;
i
<
length
;
++
i
)
{
PyObject
*
pyitem
=
PySequence_GetItem
(
x
,
i
);
if
(
pyitem
==
NULL
)
{
// If something goes wrong converting the sequence (as is the case with
// Pandas data frames), fallback to the Python object proxy
_python2js_remove_from_cache
(
map
,
x
);
hiwire_decref
(
jsarray
);
return
HW_ERROR
;
PyErr_Clear
();
Py_INCREF
(
x
);
return
pyproxy_new
((
int
)
x
);
}
size_t
length
=
PySequence_Size
(
x
);
for
(
size_t
i
=
0
;
i
<
length
;
++
i
)
{
PyObject
*
pyitem
=
PySequence_GetItem
(
x
,
i
);
if
(
pyitem
==
NULL
)
{
// If something goes wrong converting the sequence (as is the case with
// Pandas data frames), fallback to the Python object proxy
_python2js_remove_from_cache
(
map
,
x
);
hiwire_decref
(
jsarray
);
PyErr_Clear
();
Py_INCREF
(
x
);
return
pyproxy_new
((
int
)
x
);
}
int
jsitem
=
_python2js_cache
(
pyitem
,
map
);
if
(
jsitem
==
HW_ERROR
)
{
_python2js_remove_from_cache
(
map
,
x
);
Py_DECREF
(
pyitem
);
hiwire_decref
(
jsarray
);
return
HW_ERROR
;
}
int
jsitem
=
_python2js_cache
(
pyitem
,
map
);
if
(
jsitem
==
HW_ERROR
)
{
_python2js_remove_from_cache
(
map
,
x
);
Py_DECREF
(
pyitem
);
hiwire_push_array
(
jsarray
,
jsitem
);
hiwire_decref
(
jsitem
);
}
if
(
_python2js_remove_from_cache
(
map
,
x
))
{
hiwire_decref
(
jsarray
);
return
HW_ERROR
;
}
return
jsarray
;
}
else
if
(
PyDict_Check
(
x
))
{
int
jsdict
=
hiwire_object
();
if
(
_python2js_add_to_cache
(
map
,
x
,
jsdict
))
{
Py_DECREF
(
pyitem
);
hiwire_push_array
(
jsarray
,
jsitem
);
hiwire_decref
(
jsitem
);
}
if
(
_python2js_remove_from_cache
(
map
,
x
))
{
hiwire_decref
(
jsarray
);
return
HW_ERROR
;
}
return
jsarray
;
}
static
int
_python2js_dict
(
PyObject
*
x
,
PyObject
*
map
)
{
int
jsdict
=
hiwire_object
();
if
(
_python2js_add_to_cache
(
map
,
x
,
jsdict
))
{
hiwire_decref
(
jsdict
);
return
HW_ERROR
;
}
PyObject
*
pykey
,
*
pyval
;
Py_ssize_t
pos
=
0
;
while
(
PyDict_Next
(
x
,
&
pos
,
&
pykey
,
&
pyval
))
{
int
jskey
=
_python2js_cache
(
pykey
,
map
);
if
(
jskey
==
HW_ERROR
)
{
_python2js_remove_from_cache
(
map
,
x
);
hiwire_decref
(
jsdict
);
return
HW_ERROR
;
}
PyObject
*
pykey
,
*
pyval
;
Py_ssize_t
pos
=
0
;
while
(
PyDict_Next
(
x
,
&
pos
,
&
pykey
,
&
pyval
))
{
int
jskey
=
_python2js_cache
(
pykey
,
map
);
if
(
jskey
==
HW_ERROR
)
{
_python2js_remove_from_cache
(
map
,
x
);
hiwire_decref
(
jsdict
);
return
HW_ERROR
;
}
int
jsval
=
_python2js_cache
(
pyval
,
map
);
if
(
jsval
==
HW_ERROR
)
{
_python2js_remove_from_cache
(
map
,
x
);
hiwire_decref
(
jskey
);
hiwire_decref
(
jsdict
);
return
HW_ERROR
;
}
hiwire_push_object_pair
(
jsdict
,
jskey
,
jsval
);
int
jsval
=
_python2js_cache
(
pyval
,
map
);
if
(
jsval
==
HW_ERROR
)
{
_python2js_remove_from_cache
(
map
,
x
);
hiwire_decref
(
jskey
);
hiwire_decref
(
jsval
);
}
if
(
_python2js_remove_from_cache
(
map
,
x
))
{
hiwire_decref
(
jsdict
);
return
HW_ERROR
;
}
return
jsdict
;
hiwire_push_object_pair
(
jsdict
,
jskey
,
jsval
);
hiwire_decref
(
jskey
);
hiwire_decref
(
jsval
);
}
if
(
_python2js_remove_from_cache
(
map
,
x
))
{
hiwire_decref
(
jsdict
);
return
HW_ERROR
;
}
return
jsdict
;
}
static
int
_python2js
(
PyObject
*
x
,
PyObject
*
map
)
{
if
(
x
==
Py_None
)
{
return
hiwire_undefined
();
}
else
if
(
x
==
Py_True
)
{
return
hiwire_true
();
}
else
if
(
x
==
Py_False
)
{
return
hiwire_false
();
}
else
if
(
PyLong_Check
(
x
))
{
return
_python2js_long
(
x
);
}
else
if
(
PyFloat_Check
(
x
))
{
return
_python2js_float
(
x
);
}
else
if
(
PyUnicode_Check
(
x
))
{
return
_python2js_unicode
(
x
);
}
else
if
(
PyBytes_Check
(
x
))
{
return
_python2js_bytes
(
x
);
}
else
if
(
JsProxy_Check
(
x
))
{
return
JsProxy_AsJs
(
x
);
}
else
if
(
PyList_Check
(
x
)
||
PyTuple_Check
(
x
)
||
is_type_name
(
x
,
"<class 'numpy.ndarray'>"
))
{
return
_python2js_sequence
(
x
,
map
);
}
else
if
(
PyDict_Check
(
x
))
{
return
_python2js_dict
(
x
,
map
);
}
else
{
Py_INCREF
(
x
);
return
pyproxy_new
((
int
)
x
);
...
...
@@ -265,25 +297,21 @@ _python2js_add_to_cache(PyObject* map, PyObject* pyparent, int jsparent)
/* Use the pointer converted to an int so cache is by identity, not hash */
PyObject
*
pyparentid
=
PyLong_FromSize_t
((
size_t
)
pyparent
);
PyObject
*
jsparentid
=
PyLong_FromLong
(
jsparent
);
if
(
PyDict_SetItem
(
map
,
pyparentid
,
jsparentid
))
{
Py_DECREF
(
pyparentid
);
Py_DECREF
(
jsparentid
);
return
HW_ERROR
;
}
int
result
=
PyDict_SetItem
(
map
,
pyparentid
,
jsparentid
);
Py_DECREF
(
pyparentid
);
Py_DECREF
(
jsparentid
);
return
0
;
return
result
?
HW_ERROR
:
0
;
}
int
_python2js_remove_from_cache
(
PyObject
*
map
,
PyObject
*
pyparent
)
{
PyObject
*
pyparentid
=
PyLong_FromSize_t
((
size_t
)
pyparent
);
if
(
PyDict_DelItem
(
map
,
pyparentid
))
{
return
HW_ERROR
;
}
int
result
=
PyDict_DelItem
(
map
,
pyparentid
);
Py_DECREF
(
pyparentid
);
return
0
;
return
result
?
HW_ERROR
:
0
;
}
int
...
...
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