folder reorganization

2019-04-23 14:32:53 +02:00
parent 659751b2f4
commit 8e7ee78a87
1195 changed files with 267003 additions and 2 deletions
@@ -0,0 +1,204 @@
+from __future__ import unicode_literals
+from ..conversions import *
+from ..func_utils import *
+from ..base import is_data_descriptor
+import six
+
+
+def Object(this, args):
+    val = get_arg(args, 0)
+    if is_null(val) or is_undefined(val):
+        return args.space.NewObject()
+    return to_object(val, args.space)
+
+
+def ObjectCreate(args, space):
+    if len(args):
+        val = get_arg(args, 0)
+        if is_object(val):
+            #  Implementation dependent, but my will simply return :)
+            return val
+        elif type(val) in (NUMBER_TYPE, STRING_TYPE, BOOLEAN_TYPE):
+            return to_object(val, space)
+    return space.NewObject()
+
+
+class ObjectMethods:
+    def getPrototypeOf(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError',
+                            'Object.getPrototypeOf called on non-object')
+        return null if obj.prototype is None else obj.prototype
+
+    def getOwnPropertyDescriptor(this, args):
+        obj = get_arg(args, 0)
+        prop = get_arg(args, 1)
+        if not is_object(obj):
+            raise MakeError(
+                'TypeError',
+                'Object.getOwnPropertyDescriptor called on non-object')
+        desc = obj.own.get(to_string(prop))
+        return convert_to_js_type(desc, args.space)
+
+    def getOwnPropertyNames(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError(
+                'TypeError',
+                'Object.getOwnPropertyDescriptor called on non-object')
+        return args.space.ConstructArray(obj.own.keys())
+
+    def create(this, args):
+        obj = get_arg(args, 0)
+        if not (is_object(obj) or is_null(obj)):
+            raise MakeError('TypeError',
+                            'Object prototype may only be an Object or null')
+        temp = args.space.NewObject()
+        temp.prototype = None if is_null(obj) else obj
+        if len(args) > 1 and not is_undefined(args[1]):
+            if six.PY2:
+                args.tup = (args[1], )
+                ObjectMethods.defineProperties.__func__(temp, args)
+            else:
+                args.tup = (args[1], )
+                ObjectMethods.defineProperties(temp, args)
+        return temp
+
+    def defineProperty(this, args):
+        obj = get_arg(args, 0)
+        prop = get_arg(args, 1)
+        attrs = get_arg(args, 2)
+        if not is_object(obj):
+            raise MakeError('TypeError',
+                            'Object.defineProperty called on non-object')
+        name = to_string(prop)
+        if not obj.define_own_property(name, ToPropertyDescriptor(attrs),
+                                       False):
+            raise MakeError('TypeError', 'Cannot redefine property: %s' % name)
+        return obj
+
+    def defineProperties(this, args):
+        obj = get_arg(args, 0)
+        properties = get_arg(args, 1)
+        if not is_object(obj):
+            raise MakeError('TypeError',
+                            'Object.defineProperties called on non-object')
+        props = to_object(properties, args.space)
+        for k, v in props.own.items():
+            if not v.get('enumerable'):
+                continue
+            desc = ToPropertyDescriptor(props.get(unicode(k)))
+            if not obj.define_own_property(unicode(k), desc, False):
+                raise MakeError('TypeError',
+                                'Failed to define own property: %s' % k)
+        return obj
+
+    def seal(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError', 'Object.seal called on non-object')
+        for desc in obj.own.values():
+            desc['configurable'] = False
+        obj.extensible = False
+        return obj
+
+    def freeze(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError', 'Object.freeze called on non-object')
+        for desc in obj.own.values():
+            desc['configurable'] = False
+            if is_data_descriptor(desc):
+                desc['writable'] = False
+        obj.extensible = False
+        return obj
+
+    def preventExtensions(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError',
+                            'Object.preventExtensions on non-object')
+        obj.extensible = False
+        return obj
+
+    def isSealed(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError',
+                            'Object.isSealed called on non-object')
+        if obj.extensible:
+            return False
+        for desc in obj.own.values():
+            if desc.get('configurable'):
+                return False
+        return True
+
+    def isFrozen(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError',
+                            'Object.isFrozen called on non-object')
+        if obj.extensible:
+            return False
+        for desc in obj.own.values():
+            if desc.get('configurable'):
+                return False
+            if is_data_descriptor(desc) and desc.get('writable'):
+                return False
+        return True
+
+    def isExtensible(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError',
+                            'Object.isExtensible called on non-object')
+        return obj.extensible
+
+    def keys(this, args):
+        obj = get_arg(args, 0)
+        if not is_object(obj):
+            raise MakeError('TypeError', 'Object.keys called on non-object')
+        return args.space.ConstructArray([
+            unicode(e) for e, d in six.iteritems(obj.own)
+            if d.get('enumerable')
+        ])
+
+
+# some utility functions:
+
+
+def ToPropertyDescriptor(obj):  # page 38 (50 absolute)
+    if not is_object(obj):
+        raise MakeError('TypeError',
+                        'Can\'t convert non-object to property descriptor')
+    desc = {}
+    if obj.has_property('enumerable'):
+        desc['enumerable'] = to_boolean(obj.get('enumerable'))
+    if obj.has_property('configurable'):
+        desc['configurable'] = to_boolean(obj.get('configurable'))
+    if obj.has_property('value'):
+        desc['value'] = obj.get('value')
+    if obj.has_property('writable'):
+        desc['writable'] = to_boolean(obj.get('writable'))
+    if obj.has_property('get'):
+        cand = obj.get('get')
+        if not (is_undefined(cand) or is_callable(cand)):
+            raise MakeError(
+                'TypeError',
+                'Invalid getter (it has to be a function or undefined)')
+        desc['get'] = cand
+    if obj.has_property('set'):
+        cand = obj.get('set')
+        if not (is_undefined(cand) or is_callable(cand)):
+            raise MakeError(
+                'TypeError',
+                'Invalid setter (it has to be a function or undefined)')
+        desc['set'] = cand
+    if ('get' in desc or 'set' in desc) and ('value' in desc
+                                             or 'writable' in desc):
+        raise MakeError(
+            'TypeError',
+            'Invalid property.  A property cannot both have accessors and be writable or have a value.'
+        )
+    return desc