further bugfixes

.github/workflows/run-tests.yml → .github/workflows/tests.yml

@@ -1,8 +1,17 @@
-# This workflow runs tests for fdtd package.
+name: Tests
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - ".github/**"
+      - "!.github/workflows/main.yml"
+      - "docs/**"
+      - "*.md"
+      - ".git*"
 
-name: fdtd tests
-
-on: [push]
 jobs:
   build:
     runs-on: ubuntu-latest

fdtd/backend.py

@@ -75,21 +75,6 @@ class Backend:
     def __repr__(self):
         return self.__class__.__name__
 
-    @staticmethod
-    def is_complex(x):
-        """check if an object is a `ComplexFloat`"""
-        import torch
-        import numpy as np
-
-        return (
-            isinstance(x, complex)
-            or (isinstance(x, np.ndarray) and x.dtype in (np.complex64, np.complex128))
-            or (
-                isinstance(x, torch.Tensor)
-                and x.dtype in (torch.complex64, torch.complex128)
-            )
-        )
-
 
 def _replace_float(func):
     """replace the default dtype a function is called with"""
@@ -204,6 +189,15 @@ def is_array(arr):
     numpy = _replace_float(numpy.asarray)
     """ convert the array to numpy array """
 
+    @staticmethod
+    def is_complex(x):
+        """check if an object is a `ComplexFloat`"""
+
+        return isinstance(x, complex) or (
+            isinstance(x, numpy.ndarray)
+            and x.dtype in (numpy.complex64, numpy.complex128)
+        )
+
 
 # Torch Backend
 if TORCH_AVAILABLE: