# Copyright 2006 James Tauber and contributors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# pylint: disable=too-many-function-args,undefined-variable,no-absolute-import
# iteration from Bob Ippolito's Iteration in JavaScript
from __pyjamas__ import JS
# must declare import _before_ importing sys
def import_module(path, parent_module, module_name, dynamic=1, async=False):
JS("""
var cache_file;
if (module_name == "sys" || module_name == 'pyjslib')
{
/*module_load_request[module_name] = 1;*/
return;
}
if (path == null)
{
path = './';
}
var override_name = sys.platform + "." + module_name;
if (((sys.overrides != null) &&
(sys.overrides.has_key(override_name))))
{
cache_file = sys.overrides.__getitem__(override_name) ;
}
else
{
cache_file = module_name ;
}
cache_file = (path + cache_file + '.cache.js' ) ;
//alert("cache " + cache_file + " " + module_name + " " + parent_module);
/* already loaded? */
if (module_load_request[module_name])
{
if (module_load_request[module_name] >= 3 && parent_module != null)
{
//onload_fn = parent_module + '.' + module_name + ' = ' + module_name + ';';
//pyjs_eval(onload_fn); /* set up the parent-module namespace */
}
return;
}
if (typeof (module_load_request[module_name]) == 'undefined')
{
module_load_request[module_name] = 1;
}
/* following a load, this first executes the script
* "preparation" function MODULENAME_loaded_fn()
* and then sets up the loaded module in the namespace
* of the parent.
*/
onload_fn = ''; // module_name + "_loaded_fn();"
if (parent_module != null)
{
//onload_fn += parent_module + '.' + module_name + ' = ' + module_name + ';';
/*pmod = parent_module + '.' + module_name;
onload_fn += 'alert("' + pmod + '"+' + pmod+');';*/
}
if (dynamic)
{
/* this one tacks the script onto the end of the DOM
*/
pyjs_load_script(cache_file, onload_fn, async);
/* this one actually RUNS the script (eval) into the page.
my feeling is that this would be better for non-async
but i can't get it to work entirely yet.
*/
/*pyjs_ajax_eval(cache_file, onload_fn, async);*/
}
else
{
if (module_name != "pyjslib" &&
module_name != "sys")
pyjs_eval(onload_fn);
}
""")
JS("""
function import_wait(proceed_fn, parent_mod, dynamic) {
var data = '';
var element = $doc.createElement("div");
$doc.body.appendChild(element);
function write_dom(txt) {
element.innerHTML = txt + '<br />';
}
var timeoutperiod = 1;
if (dynamic)
var timeoutperiod = 1;
var wait = function() {
var status = '';
for (l in module_load_request)
{
var m = module_load_request[l];
if (l == "sys" || l == 'pyjslib')
continue;
status += l + m + " ";
}
//write_dom( " import wait " + wait_count + " " + status + " parent_mod " + parent_mod);
wait_count += 1;
if (status == '')
{
setTimeout(wait, timeoutperiod);
return;
}
for (l in module_load_request)
{
var m = module_load_request[l];
if (l == "sys" || l == 'pyjslib')
{
module_load_request[l] = 4;
continue;
}
if ((parent_mod != null) && (l == parent_mod))
{
if (m == 1)
{
setTimeout(wait, timeoutperiod);
return;
}
if (m == 2)
{
/* cheat and move app on to next stage */
module_load_request[l] = 3;
}
}
if (m == 1 || m == 2)
{
setTimeout(wait, timeoutperiod);
return;
}
if (m == 3)
{
//alert("waited for module " + l + ": loaded");
module_load_request[l] = 4;
mod_fn = modules[l];
}
}
//alert("module wait done");
if (proceed_fn.importDone)
proceed_fn.importDone(proceed_fn);
else
proceed_fn();
}
wait();
}
""")
# pylint: disable=old-style-class
class Object:
def __init__(self):
pass
object = Object
class Modload:
def __init__(self, path, app_modlist, app_imported_fn, dynamic,
parent_mod):
self.app_modlist = app_modlist
self.app_imported_fn = app_imported_fn
self.path = path
self.idx = 0
self.dynamic = dynamic
self.parent_mod = parent_mod
def next(self):
for i in range(len(self.app_modlist[self.idx])):
app = self.app_modlist[self.idx][i]
import_module(self.path, self.parent_mod, app, self.dynamic, True)
self.idx += 1
if self.idx >= len(self.app_modlist):
import_wait(self.app_imported_fn, self.parent_mod, self.dynamic)
else:
import_wait(getattr(self, "next"), self.parent_mod, self.dynamic)
def get_module(module_name):
_ev = "__mod = %s;" % module_name
JS("pyjs_eval(_ev);")
return __mod
def preload_app_modules(path, app_modnames, app_imported_fn, dynamic,
parent_mod=None):
loader = Modload(path, app_modnames, app_imported_fn, dynamic, parent_mod)
loader.next()
# as comment on line 20 says
# import sys should be below
import sys # noqa # pylint: disable=wrong-import-order,unused-import,wrong-import-position
class BaseException:
name = "BaseException"
def __init__(self, *args):
self.args = args
def __str__(self):
if len(self.args) is 0:
return ''
elif len(self.args) is 1:
return repr(self.args[0])
return repr(self.args)
def toString(self):
return str(self)
class Exception(BaseException):
name = "Exception"
class TypeError(BaseException):
name = "TypeError"
class StandardError(Exception):
name = "StandardError"
class LookupError(StandardError):
name = "LookupError"
def toString(self):
return self.name + ": " + self.args[0]
class KeyError(LookupError):
name = "KeyError"
class AttributeError(StandardError):
name = "AttributeError"
def toString(self):
return "AttributeError: %s of %s" % (self.args[1], self.args[0])
JS("""
pyjslib.StopIteration = function () { };
pyjslib.StopIteration.prototype = new Error();
pyjslib.StopIteration.name = 'StopIteration';
pyjslib.StopIteration.message = 'StopIteration';
pyjslib.String_find = function(sub, start, end) {
var pos=this.indexOf(sub, start);
if (pyjslib.isUndefined(end)) return pos;
if (pos + sub.length>end) return -1;
return pos;
}
pyjslib.String_join = function(data) {
var text="";
if (pyjslib.isArray(data)) {
return data.join(this);
}
else if (pyjslib.isIteratable(data)) {
var iter=data.__iter__();
try {
text+=iter.next();
while (true) {
var item=iter.next();
text+=this + item;
}
}
catch (e) {
if (e != pyjslib.StopIteration) throw e;
}
}
return text;
}
pyjslib.String_isdigit = function() {
return (this.match(/^\d+$/g) != null);
}
pyjslib.String_replace = function(old, replace, count) {
var do_max=false;
var start=0;
var new_str="";
var pos=0;
if (!pyjslib.isString(old)) return this.__replace(old, replace);
if (!pyjslib.isUndefined(count)) do_max=true;
while (start<this.length) {
if (do_max && !count--) break;
pos=this.indexOf(old, start);
if (pos<0) break;
new_str+=this.substring(start, pos) + replace;
start=pos+old.length;
}
if (start<this.length) new_str+=this.substring(start);
return new_str;
}
pyjslib.String_split = function(sep, maxsplit) {
var items=new pyjslib.List();
var do_max=false;
var subject=this;
var start=0;
var pos=0;
if (pyjslib.isUndefined(sep) || pyjslib.isNull(sep)) {
sep=" ";
subject=subject.strip();
subject=subject.replace(/\s+/g, sep);
}
else if (!pyjslib.isUndefined(maxsplit)) do_max=true;
if (subject.length == 0) {
return items;
}
while (start<subject.length) {
if (do_max && !maxsplit--) break;
pos=subject.indexOf(sep, start);
if (pos<0) break;
items.append(subject.substring(start, pos));
start=pos+sep.length;
}
if (start<=subject.length) items.append(subject.substring(start));
return items;
}
pyjslib.String___iter__ = function() {
var i = 0;
var s = this;
return {
'next': function() {
if (i >= s.length) {
throw pyjslib.StopIteration;
}
return s.substring(i++, i, 1);
},
'__iter__': function() {
return this;
}
};
}
pyjslib.String_strip = function(chars) {
return this.lstrip(chars).rstrip(chars);
}
pyjslib.String_lstrip = function(chars) {
if (pyjslib.isUndefined(chars)) return this.replace(/^\s+/, "");
return this.replace(new RegExp("^[" + chars + "]+"), "");
}
pyjslib.String_rstrip = function(chars) {
if (pyjslib.isUndefined(chars)) return this.replace(/\s+$/, "");
return this.replace(new RegExp("[" + chars + "]+$"), "");
}
pyjslib.String_startswith = function(prefix, start) {
if (pyjslib.isUndefined(start)) start = 0;
if (this.substring(start, prefix.length) == prefix) return true;
return false;
}
pyjslib.abs = Math.abs;
""")
class Class:
def __init__(self, name):
self.name = name
def __str___(self):
return self.name
def eq(a, b):
JS("""
if (pyjslib.hasattr(a, "__cmp__")) {
return a.__cmp__(b) == 0;
} else if (pyjslib.hasattr(b, "__cmp__")) {
return b.__cmp__(a) == 0;
}
return a == b;
""")
def cmp(a, b):
if hasattr(a, "__cmp__"):
return a.__cmp__(b)
elif hasattr(b, "__cmp__"):
return -b.__cmp__(a)
if a > b:
return 1
elif b > a:
return -1
else:
return 0
def bool(v):
# this needs to stay in native code without any dependencies here,
# because this is used by if and while, we need to prevent
# recursion
JS("""
if (!v) return false;
switch(typeof v){
case 'boolean':
return v;
case 'object':
if (v.__nonzero__){
return v.__nonzero__();
}else if (v.__len__){
return v.__len__()>0;
}
return true;
}
return Boolean(v);
""")
class List:
def __init__(self, data=None):
JS("""
this.l = [];
this.extend(data);
""")
def append(self, item):
JS(""" this.l[this.l.length] = item;""")
def extend(self, data):
JS("""
if (pyjslib.isArray(data)) {
n = this.l.length;
for (var i=0; i < data.length; i++) {
this.l[n+i]=data[i];
}
}
else if (pyjslib.isIteratable(data)) {
var iter=data.__iter__();
var i=this.l.length;
try {
while (true) {
var item=iter.next();
this.l[i++]=item;
}
}
catch (e) {
if (e != pyjslib.StopIteration) throw e;
}
}
""")
def remove(self, value):
JS("""
var index=this.index(value);
if (index<0) return false;
this.l.splice(index, 1);
return true;
""")
def index(self, value, start=0):
JS("""
var length=this.l.length;
for (var i=start; i<length; i++) {
if (this.l[i]==value) {
return i;
}
}
return -1;
""")
def insert(self, index, value):
JS(""" var a = this.l; this.l=a.slice(0, index).concat(value, a.slice(index));""")
def pop(self, index=-1):
JS("""
if (index<0) index = this.l.length + index;
var a = this.l[index];
this.l.splice(index, 1);
return a;
""")
def __cmp__(self, l):
if not isinstance(l, List):
return -1
ll = len(self) - len(l)
if ll != 0:
return ll
for x in range(len(l)):
ll = cmp(self.__getitem__(x), l[x])
if ll != 0:
return ll
return 0
def slice(self, lower, upper):
JS("""
if (upper==null) return pyjslib.List(this.l.slice(lower));
return pyjslib.List(this.l.slice(lower, upper));
""")
def __getitem__(self, index):
JS("""
if (index<0) index = this.l.length + index;
return this.l[index];
""")
def __setitem__(self, index, value):
JS(""" this.l[index]=value;""")
def __delitem__(self, index):
JS(""" this.l.splice(index, 1);""")
def __len__(self):
JS(""" return this.l.length;""")
def __contains__(self, value):
return self.index(value) >= 0
def __iter__(self):
JS("""
var i = 0;
var l = this.l;
return {
'next': function() {
if (i >= l.length) {
throw pyjslib.StopIteration;
}
return l[i++];
},
'__iter__': function() {
return this;
}
};
""")
def reverse(self):
JS(""" this.l.reverse();""")
def sort(self, compareFunc=None, keyFunc=None, reverse=False):
if not compareFunc:
compareFunc = cmp
if keyFunc and reverse:
def thisSort1(a, b):
return -compareFunc(keyFunc(a), keyFunc(b))
self.l.sort(thisSort1)
elif keyFunc:
def thisSort2(a, b):
return compareFunc(keyFunc(a), keyFunc(b))
self.l.sort(thisSort2)
elif reverse:
def thisSort3(a, b):
return -compareFunc(a, b)
self.l.sort(thisSort3)
else:
self.l.sort(compareFunc)
def getArray(self):
"""
Access the javascript Array that is used internally by this list
"""
return self.l
def __str__(self):
return repr(self)
list = List
class Tuple:
def __init__(self, data=None):
JS("""
this.l = [];
this.extend(data);
""")
def append(self, item):
JS(""" this.l[this.l.length] = item;""")
def extend(self, data):
JS("""
if (pyjslib.isArray(data)) {
n = this.l.length;
for (var i=0; i < data.length; i++) {
this.l[n+i]=data[i];
}
}
else if (pyjslib.isIteratable(data)) {
var iter=data.__iter__();
var i=this.l.length;
try {
while (true) {
var item=iter.next();
this.l[i++]=item;
}
}
catch (e) {
if (e != pyjslib.StopIteration) throw e;
}
}
""")
def remove(self, value):
JS("""
var index=this.index(value);
if (index<0) return false;
this.l.splice(index, 1);
return true;
""")
def index(self, value, start=0):
JS("""
var length=this.l.length;
for (var i=start; i<length; i++) {
if (this.l[i]==value) {
return i;
}
}
return -1;
""")
def insert(self, index, value):
JS(""" var a = this.l; this.l=a.slice(0, index).concat(value, a.slice(index));""")
def pop(self, index=-1):
JS("""
if (index<0) index = this.l.length + index;
var a = this.l[index];
this.l.splice(index, 1);
return a;
""")
def __cmp__(self, l):
if not isinstance(l, Tuple):
return -1
ll = len(self) - len(l)
if ll != 0:
return ll
for x in range(len(l)):
ll = cmp(self.__getitem__(x), l[x])
if ll != 0:
return ll
return 0
def slice(self, lower, upper):
JS("""
if (upper==null) return pyjslib.Tuple(this.l.slice(lower));
return pyjslib.Tuple(this.l.slice(lower, upper));
""")
def __getitem__(self, index):
JS("""
if (index<0) index = this.l.length + index;
return this.l[index];
""")
def __setitem__(self, index, value):
JS(""" this.l[index]=value;""")
def __delitem__(self, index):
JS(""" this.l.splice(index, 1);""")
def __len__(self):
JS(""" return this.l.length;""")
def __contains__(self, value):
return self.index(value) >= 0
def __iter__(self):
JS("""
var i = 0;
var l = this.l;
return {
'next': function() {
if (i >= l.length) {
throw pyjslib.StopIteration;
}
return l[i++];
},
'__iter__': function() {
return this;
}
};
""")
def reverse(self):
JS(""" this.l.reverse();""")
def sort(self, compareFunc=None, keyFunc=None, reverse=False):
if not compareFunc:
compareFunc = cmp
if keyFunc and reverse:
def thisSort1(a, b):
return -compareFunc(keyFunc(a), keyFunc(b))
self.l.sort(thisSort1)
elif keyFunc:
def thisSort2(a, b):
return compareFunc(keyFunc(a), keyFunc(b))
self.l.sort(thisSort2)
elif reverse:
def thisSort3(a, b):
return -compareFunc(a, b)
self.l.sort(thisSort3)
else:
self.l.sort(compareFunc)
def getArray(self):
"""
Access the javascript Array that is used internally by this list
"""
return self.l
def __str__(self):
return repr(self)
tuple = Tuple
class Dict:
def __init__(self, data=None):
JS("""
this.d = {};
if (pyjslib.isArray(data)) {
for (var i in data) {
var item=data[i];
this.__setitem__(item[0], item[1]);
//var sKey=pyjslib.hash(item[0]);
//this.d[sKey]=item[1];
}
}
else if (pyjslib.isIteratable(data)) {
var iter=data.__iter__();
try {
while (true) {
var item=iter.next();
this.__setitem__(item.__getitem__(0), item.__getitem__(1));
}
}
catch (e) {
if (e != pyjslib.StopIteration) throw e;
}
}
else if (pyjslib.isObject(data)) {
for (var key in data) {
this.__setitem__(key, data[key]);
}
}
""")
def __setitem__(self, key, value):
JS("""
var sKey = pyjslib.hash(key);
this.d[sKey]=[key, value];
""")
def __getitem__(self, key):
JS("""
var sKey = pyjslib.hash(key);
var value=this.d[sKey];
if (pyjslib.isUndefined(value)){
throw pyjslib.KeyError(key);
}
return value[1];
""")
def __nonzero__(self):
JS("""
for (var i in this.d){
return true;
}
return false;
""")
def __len__(self):
JS("""
var size=0;
for (var i in this.d) size++;
return size;
""")
def has_key(self, key):
return self.__contains__(key)
def __delitem__(self, key):
JS("""
var sKey = pyjslib.hash(key);
delete this.d[sKey];
""")
def __contains__(self, key):
JS("""
var sKey = pyjslib.hash(key);
return (pyjslib.isUndefined(this.d[sKey])) ? false : true;
""")
def keys(self):
JS("""
var keys=new pyjslib.List();
for (var key in this.d) {
keys.append(this.d[key][0]);
}
return keys;
""")
def values(self):
JS("""
var values=new pyjslib.List();
for (var key in this.d) values.append(this.d[key][1]);
return values;
""")
def items(self):
JS("""
var items = new pyjslib.List();
for (var key in this.d) {
var kv = this.d[key];
items.append(new pyjslib.List(kv))
}
return items;
""")
def __iter__(self):
return self.keys().__iter__()
def iterkeys(self):
return self.__iter__()
def itervalues(self):
return self.values().__iter__()
def iteritems(self):
return self.items().__iter__()
def setdefault(self, key, default_value):
if key not in self:
self[key] = default_value
def get(self, key, default_=None):
if key not in self:
return default_
return self[key]
def update(self, d):
for k, v in d.iteritems():
self[k] = v
def getObject(self):
"""
Return the javascript Object which this class uses to store
dictionary keys and values
"""
return self.d
def copy(self):
return Dict(self.items())
def __str__(self):
return repr(self)
dict = Dict
# taken from mochikit: range( [start,] stop[, step] )
def range():
JS("""
var start = 0;
var stop = 0;
var step = 1;
if (arguments.length == 2) {
start = arguments[0];
stop = arguments[1];
}
else if (arguments.length == 3) {
start = arguments[0];
stop = arguments[1];
step = arguments[2];
}
else if (arguments.length>0) stop = arguments[0];
return {
'next': function() {
if ((step > 0 && start >= stop) || (step < 0 && start <= stop)) throw pyjslib.StopIteration;
var rval = start;
start += step;
return rval;
},
'__iter__': function() {
return this;
}
}
""")
def slice(object, lower, upper):
JS("""
if (pyjslib.isString(object)) {
if (lower < 0) {
lower = object.length + lower;
}
if (upper < 0) {
upper = object.length + upper;
}
if (pyjslib.isNull(upper)) upper=object.length;
return object.substring(lower, upper);
}
if (pyjslib.isObject(object) && object.slice)
return object.slice(lower, upper);
return null;
""")
def str(text):
JS("""
if (pyjslib.hasattr(text,"__str__")) {
return text.__str__();
}
return String(text);
""")
def ord(x):
if isString(x) and len(x) is 1:
JS("""
return x.charCodeAt(0);
""")
else:
JS("""
throw pyjslib.TypeError();
""")
return None
def chr(x):
JS("""
return String.fromCharCode(x)
""")
def is_basetype(x):
JS("""
var t = typeof(x);
return t == 'boolean' ||
t == 'function' ||
t == 'number' ||
t == 'string' ||
t == 'undefined'
;
""")
def get_pyjs_classtype(x):
JS("""
if (pyjslib.hasattr(x, "__class__"))
if (pyjslib.hasattr(x.__class__, "__new__"))
var src = x.__class__.__name__;
return src;
return null;
""")
def repr(x):
""" Return the string representation of 'x'.
"""
JS("""
if (x === null)
return "null";
if (x === undefined)
return "undefined";
var t = typeof(x);
//alert("repr typeof " + t + " : " + x);
if (t == "boolean")
return x.toString();
if (t == "function")
return "<function " + x.toString() + ">";
if (t == "number")
return x.toString();
if (t == "string") {
if (x.indexOf("'") == -1)
return "'" + x + "'";
if (x.indexOf('"') == -1)
return '"' + x + '"';
var s = x.replace(new RegExp('"', "g"), '\\\\"');
return '"' + s + '"';
};
if (t == "undefined")
return "undefined";
// If we get here, x is an object. See if it's a Pyjamas class.
if (!pyjslib.hasattr(x, "__init__"))
return "<" + x.toString() + ">";
// Handle the common Pyjamas data types.
var constructor = "UNKNOWN";
constructor = pyjslib.get_pyjs_classtype(x);
//alert("repr constructor: " + constructor);
if (constructor == "Tuple") {
var contents = x.getArray();
var s = "(";
for (var i=0; i < contents.length; i++) {
s += pyjslib.repr(contents[i]);
if (i < contents.length - 1)
s += ", ";
};
s += ")"
return s;
};
if (constructor == "List") {
var contents = x.getArray();
var s = "[";
for (var i=0; i < contents.length; i++) {
s += pyjslib.repr(contents[i]);
if (i < contents.length - 1)
s += ", ";
};
s += "]"
return s;
};
if (constructor == "Dict") {
var keys = new Array();
for (var key in x.d)
keys.push(key);
var s = "{";
for (var i=0; i<keys.length; i++) {
var key = keys[i]
s += pyjslib.repr(key) + ": " + pyjslib.repr(x.d[key]);
if (i < keys.length-1)
s += ", "
};
s += "}";
return s;
};
// If we get here, the class isn't one we know -> return the class name.
// Note that we replace underscores with dots so that the name will
// (hopefully!) look like the original Python name.
//var s = constructor.replace(new RegExp('_', "g"), '.');
return "<" + constructor + " object>";
""")
def float(text):
JS("""
return parseFloat(text);
""")
def int(text, radix=0):
JS("""
return parseInt(text, radix);
""")
def len(object):
JS("""
if (object==null) return 0;
if (pyjslib.isObject(object) && object.__len__) return object.__len__();
return object.length;
""")
def isinstance(object_, classinfo):
if pyjslib.isUndefined(object_):
return False
if not pyjslib.isObject(object_):
return False
if _isinstance(classinfo, Tuple):
for ci in classinfo:
if isinstance(object_, ci):
return True
return False
else:
return _isinstance(object_, classinfo)
def _isinstance(object_, classinfo):
if not pyjslib.isObject(object_):
return False
JS("""
if (object_.__class__){
var res = object_ instanceof classinfo.constructor;
return res;
}
return false;
""")
def getattr(obj, name, default_=None):
JS("""
if ((!pyjslib.isObject(obj))||(pyjslib.isUndefined(obj[name]))){
if (pyjslib.isUndefined(default_)){
throw pyjslib.AttributeError(obj, name);
}else{
return default_;
}
}
if (!pyjslib.isFunction(obj[name])) return obj[name];
var fnwrap = function() {
var args = [];
for (var i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
return obj[name].apply(obj,args);
}
fnwrap.__name__ = name;
return fnwrap;
""")
def setattr(obj, name, value):
JS("""
if (!pyjslib.isObject(obj)) return null;
obj[name] = value;
""")
def hasattr(obj, name):
JS("""
if (!pyjslib.isObject(obj)) return false;
if (pyjslib.isUndefined(obj[name])) return false;
return true;
""")
def dir(obj):
JS("""
var properties=new pyjslib.List();
for (property in obj) properties.append(property);
return properties;
""")
def filter(obj, method, sequence=None):
# object context is LOST when a method is passed, hence object must be passed separately
# to emulate python behaviour, should generate this code inline rather than as a function call
items = []
if sequence is None:
sequence = method
method = obj
for item in sequence:
if method(item):
items.append(item)
else:
for item in sequence:
if method.call(obj, item):
items.append(item)
return items
def map(obj, method, sequence=None):
items = []
if sequence is None:
sequence = method
method = obj
for item in sequence:
items.append(method(item))
else:
for item in sequence:
items.append(method.call(obj, item))
return items
def enumerate(sequence):
enumeration = []
nextIndex = 0
for item in sequence:
enumeration.append([nextIndex, item])
nextIndex = nextIndex + 1
return enumeration
def min(*sequence):
minValue = None
for item in sequence:
if minValue is None:
minValue = item
elif item < minValue:
minValue = item
return minValue
def max(*sequence):
maxValue = None
for item in sequence:
if maxValue is None:
maxValue = item
elif item > maxValue:
maxValue = item
return maxValue
next_hash_id = 0
def hash(obj):
JS("""
if (obj == null) return null;
if (obj.$H) return obj.$H;
if (obj.__hash__) return obj.__hash__();
if (obj.constructor == String || obj.constructor == Number || obj.constructor == Date) return obj;
obj.$H = ++pyjslib.next_hash_id;
return obj.$H;
""")
# type functions from Douglas Crockford's Remedial Javascript: http://www.crockford.com/javascript/remedial.html
def isObject(a):
JS("""
return (a != null && (typeof a == 'object')) || pyjslib.isFunction(a);
""")
def isFunction(a):
JS("""
return typeof a == 'function';
""")
def isString(a):
JS("""
return typeof a == 'string';
""")
def isNull(a):
JS("""
return typeof a == 'object' && !a;
""")
def isArray(a):
JS("""
return pyjslib.isObject(a) && a.constructor == Array;
""")
def isUndefined(a):
JS("""
return typeof a == 'undefined';
""")
def isIteratable(a):
JS("""
return pyjslib.isString(a) || (pyjslib.isObject(a) && a.__iter__);
""")
def isNumber(a):
JS("""
return typeof a == 'number' && isFinite(a);
""")
def toJSObjects(x):
"""
Convert the pyjs pythonic List and Dict objects into javascript Object and Array
objects, recursively.
"""
if isArray(x):
JS("""
var result = [];
for(var k=0; k < x.length; k++) {
var v = x[k];
var tv = pyjslib.toJSObjects(v);
result.push(tv);
}
return result;
""")
if isObject(x):
if isinstance(x, Dict):
JS("""
var o = x.getObject();
var result = {};
for (var i in o) {
result[o[i][0].toString()] = o[i][1];
}
return pyjslib.toJSObjects(result)
""")
elif isinstance(x, List):
return toJSObjects(x.l)
elif hasattr(x, '__class__'):
# we do not have a special implementation for custom
# classes, just pass it on
return x
if isObject(x):
JS("""
var result = {};
for(var k in x) {
var v = x[k];
var tv = pyjslib.toJSObjects(v)
result[k] = tv;
}
return result;
""")
return x
def printFunc(objs):
JS("""
if ($wnd.console==undefined) return;
var s = "";
for(var i=0; i < objs.length; i++) {
if(s != "") s += " ";
s += objs[i];
}
console.debug(s)
""")
def type(clsname, bases=None, methods=None):
""" creates a class, derived from bases, with methods and variables
"""
JS(" var mths = {}; ")
if methods:
for k in methods.keys():
_mth = methods[k]
JS(" mths[k] = _mth; ")
JS(" var bss = null; ")
if bases:
JS("bss = bases.l;")
JS(" return pyjs_type(clsname, bss, mths); ")