Implement prepare_string_array, used by the setter of the CktElement.BusNames property. Closes #11.

The validation takes a long time to run with the setter test enabled.

Author: PMeira

dss/_cffi_api_util.py

@@ -130,17 +130,18 @@ def prepare_int32_array(self, value):
         return value, ptr, cnt
 
     def prepare_string_array(self, value):
-        raise NotImplementedError
-   
-
-# This might be useful for methods like Get_Channel that are exposed as Channel[] and Channel()
-# def arrayfunc(func):
-    # class ArrayFuncWrapper:
-        # def __call__(self, v):
-            # return func(self, v)
-            
-        # def __getitem__(self, v):
-            # return func(self, v)
+        if value is None:
+            raise ValueError("Value cannot be None!")
 
-    # return ArrayFuncWrapper()
+        ptrs = []
+        for v in value:
+            if type(v) is not bytes:
+                v = v.encode(codec)
+        
+            ptrs.append(self.ffi.new("char[]", v))
+        
+        # Need to keep reference to every pointer to they don't get
+        # garbage collected too early
+        return value, ptrs, len(ptrs)
+   
 

tests/validate.py

@@ -131,7 +131,21 @@ def validate_CktElement(self):
             fB = getattr(B, field)
             if fA == ('',) and fB == [None]: continue # comtypes and win32com results are a bit different here
             assert all(x[0] == x[1] for x in zip(fA, fB)), field
-
+            
+          
+        # Check if setting bus names works
+        BusNames = list(A.BusNames)
+        A.BusNames = BusNames
+        B.BusNames = BusNames
+
+        # Check if they match again
+        field = 'BusNames'
+        fA = getattr(A, field)
+        fB = getattr(B, field)
+        if not (fA == ('',) and fB == [None]): # comtypes and win32com results are a bit different here
+            assert all(x[0] == x[1] for x in zip(fA, fB)), field
+          
+          
         if no_properties: return
 
         all_props = list(A.AllPropertyNames)