folder reorganization

lib/js2py/constructors/jsint8array.py

@@ -0,0 +1,79 @@
+# this is based on jsarray.py
+
+from ..base import *
+try:
+    import numpy
+except:
+    pass
+
+
+@Js
+def Int8Array():
+    TypedArray = (PyJsInt8Array, PyJsUint8Array, PyJsUint8ClampedArray,
+                  PyJsInt16Array, PyJsUint16Array, PyJsInt32Array,
+                  PyJsUint32Array, PyJsFloat32Array, PyJsFloat64Array)
+    a = arguments[0]
+    if isinstance(a, PyJsNumber):  # length
+        length = a.to_uint32()
+        if length != a.value:
+            raise MakeError('RangeError', 'Invalid array length')
+        temp = Js(numpy.full(length, 0, dtype=numpy.int8))
+        temp.put('length', a)
+        return temp
+    elif isinstance(a, PyJsString):  # object (string)
+        temp = Js(numpy.array(list(a.value), dtype=numpy.int8))
+        temp.put('length', Js(len(list(a.value))))
+        return temp
+    elif isinstance(a, PyJsArray) or isinstance(a, TypedArray) or isinstance(
+            a, PyJsArrayBuffer):  # object (Array, TypedArray)
+        array = a.to_list()
+        array = [(int(item.value) if item.value != None else 0)
+                 for item in array]
+        temp = Js(numpy.array(array, dtype=numpy.int8))
+        temp.put('length', Js(len(array)))
+        return temp
+    elif isinstance(a, PyObjectWrapper):  # object (ArrayBuffer, etc)
+        if len(arguments) > 1:
+            offset = int(arguments[1].value)
+        else:
+            offset = 0
+        if len(arguments) > 2:
+            length = int(arguments[2].value)
+        else:
+            length = int(len(a.obj) - offset)
+        array = numpy.frombuffer(
+            a.obj, dtype=numpy.int8, count=length, offset=offset)
+        temp = Js(array)
+        temp.put('length', Js(length))
+        temp.buff = array
+        return temp
+    temp = Js(numpy.full(0, 0, dtype=numpy.int8))
+    temp.put('length', Js(0))
+    return temp
+
+
+Int8Array.create = Int8Array
+Int8Array.own['length']['value'] = Js(3)
+
+Int8Array.define_own_property(
+    'prototype', {
+        'value': Int8ArrayPrototype,
+        'enumerable': False,
+        'writable': False,
+        'configurable': False
+    })
+
+Int8ArrayPrototype.define_own_property(
+    'constructor', {
+        'value': Int8Array,
+        'enumerable': False,
+        'writable': True,
+        'configurable': True
+    })
+
+Int8ArrayPrototype.define_own_property('BYTES_PER_ELEMENT', {
+    'value': Js(1),
+    'enumerable': False,
+    'writable': False,
+    'configurable': False
+})