# HG changeset patch
# User Mike Miller <mtmiller@octave.org>
# Date 1472224514 25200
# Node ID a8102b1a57a1f6837a590a178976f659c798a8d2
# Parent  540b36e797c897dcc6601219287ea30381e90040
pyobject.subsref: restore performance by calling __py_isinstance__ directly

* @pyobject/subsref.m: Call __py_isinstance__ internal function directly
to negate performance loss in cset 540b36e797c8.

diff -r 540b36e797c8 -r a8102b1a57a1 @pyobject/subsref.m
--- a/@pyobject/subsref.m	Thu Aug 25 23:20:02 2016 -0700
+++ b/@pyobject/subsref.m	Fri Aug 26 08:15:14 2016 -0700
@@ -42,9 +42,10 @@
 
     case "()"
       ## Determine the types and protocols that we are able to index into
-      x_is_callable = isa (x, "py.collections.Callable");
-      x_is_sequence = any (isa (x, {"py.collections.Sequence", ...
-                                    "py.array.array", "py.numpy.ndarray"}));
+      x_is_callable = __py_isinstance__ (x, "py.collections.Callable");
+      x_is_sequence = __py_isinstance__ (x, "py.collections.Sequence") ...
+                      | __py_isinstance__ (x, "py.array.array") ...
+                      | __py_isinstance__ (x, "py.numpy.ndarray");
 
       if (! (x_is_callable || x_is_sequence))
         error ("subsref: cannot index Python object, not sequence or callable");
@@ -58,9 +59,10 @@
 
     case "{}"
       ## Determine the types and protocols that we are able to index into
-      x_is_mapping = isa (x, "py.collections.Mapping");
-      x_is_sequence = any (isa (x, {"py.collections.Sequence", ...
-                                    "py.array.array", "py.numpy.ndarray"}));
+      x_is_mapping = __py_isinstance__ (x, "py.collections.Mapping");
+      x_is_sequence = __py_isinstance__ (x, "py.collections.Sequence") ...
+                      | __py_isinstance__ (x, "py.array.array") ...
+                      | __py_isinstance__ (x, "py.numpy.ndarray");
 
       if (! (x_is_mapping || x_is_sequence))
         error ("subsref: cannot index Python object, not sequence or mapping");