folder reorganization

lib/js2py/constructors/jsfloat64array.py

@@ -0,0 +1,87 @@
+# this is based on jsarray.py
+
+from ..base import *
+try:
+    import numpy
+except:
+    pass
+
+
+@Js
+def Float64Array():
+    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.float64))
+        temp.put('length', a)
+        return temp
+    elif isinstance(a, PyJsString):  # object (string)
+        temp = Js(numpy.array(list(a.value), dtype=numpy.float64))
+        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.float64))
+        temp.put('length', Js(len(array)))
+        return temp
+    elif isinstance(a, PyObjectWrapper):  # object (ArrayBuffer, etc)
+        if len(a.obj) % 8 != 0:
+            raise MakeError(
+                'RangeError',
+                'Byte length of Float64Array should be a multiple of 8')
+        if len(arguments) > 1:
+            offset = int(arguments[1].value)
+            if offset % 8 != 0:
+                raise MakeError(
+                    'RangeError',
+                    'Start offset of Float64Array should be a multiple of 8')
+        else:
+            offset = 0
+        if len(arguments) > 2:
+            length = int(arguments[2].value)
+        else:
+            length = int((len(a.obj) - offset) / 8)
+        array = numpy.frombuffer(
+            a.obj, dtype=numpy.float64, 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.float64))
+    temp.put('length', Js(0))
+    return temp
+
+
+Float64Array.create = Float64Array
+Float64Array.own['length']['value'] = Js(3)
+
+Float64Array.define_own_property(
+    'prototype', {
+        'value': Float64ArrayPrototype,
+        'enumerable': False,
+        'writable': False,
+        'configurable': False
+    })
+
+Float64ArrayPrototype.define_own_property(
+    'constructor', {
+        'value': Float64Array,
+        'enumerable': False,
+        'writable': True,
+        'configurable': True
+    })
+
+Float64ArrayPrototype.define_own_property('BYTES_PER_ELEMENT', {
+    'value': Js(8),
+    'enumerable': False,
+    'writable': False,
+    'configurable': False
+})