From 642e9cb449f4003a1cea6776930d1653da66bf9c Mon Sep 17 00:00:00 2001
From: Matthew Smith <mjsmith6@illinois.edu>
Date: Thu, 17 Dec 2020 18:31:56 -0600
Subject: [PATCH] allow calls to project() with the same source and target
---
grudge/eager.py | 3 +++
1 file changed, 3 insertions(+)
diff --git a/grudge/eager.py b/grudge/eager.py
index 3bacbc2b..92378f99 100644
--- a/grudge/eager.py
+++ b/grudge/eager.py
@@ -83,6 +83,9 @@ class EagerDGDiscretization(DGDiscretizationWithBoundaries):
:arg tgt: a :class:`~grudge.sym.DOFDesc`, or a value convertible to one
:arg vec: a :class:`~meshmode.dof_array.DOFArray`
"""
+ if src == tgt:
+ return vec
+
if isinstance(vec, np.ndarray):
return obj_array_vectorize(
lambda el: self.project(src, tgt, el), vec)
--
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