From 1a71a452259da230a2b20789c01cdac6a94470c8 Mon Sep 17 00:00:00 2001
From: pca006132 <jl@m-labs.hk>
Date: Thu, 17 Mar 2022 15:14:23 +0800
Subject: [PATCH] support builtin exceptions

---
 artiq/coredevice/exceptions.py | 19 ++++++++++---------
 flake.lock                     |  8 ++++----
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/artiq/coredevice/exceptions.py b/artiq/coredevice/exceptions.py
index 5f50b1372..29d10e4e9 100644
--- a/artiq/coredevice/exceptions.py
+++ b/artiq/coredevice/exceptions.py
@@ -1,5 +1,5 @@
 from artiq.language.core import nac3
-
+from builtins import ZeroDivisionError, ValueError, IndexError, RuntimeError, AssertionError
 
 @nac3
 class RTIOUnderflow(Exception):
@@ -8,7 +8,7 @@ class RTIOUnderflow(Exception):
 
     The offending event is discarded and the RTIO core keeps operating.
     """
-    pass
+    artiq_builtin = True
 
 
 @nac3
@@ -20,7 +20,7 @@ class RTIOOverflow(Exception):
     read attempt and discarding some events. Reading can be reattempted after
     the exception is caught, and events will be partially retrieved.
     """
-    pass
+    artiq_builtin = True
 
 
 @nac3
@@ -28,34 +28,35 @@ class RTIODestinationUnreachable(Exception):
     """Raised with a RTIO operation could not be completed due to a DRTIO link
     being down.
     """
-    pass
+    artiq_builtin = True
 
 
 @nac3
 class CacheError(Exception):
     """Raised when putting a value into a cache row would violate memory safety."""
-    pass
+    artiq_builtin = True
 
 
 @nac3
 class DMAError(Exception):
     """Raised when performing an invalid DMA operation."""
-    pass
+    artiq_builtin = True
 
 
 @nac3
 class ClockFailure(Exception):
     """Raised when RTIO PLL has lost lock."""
-    pass
+    artiq_builtin = True
 
 
 @nac3
 class I2CError(Exception):
     """Raised when a I2C transaction fails."""
-    pass
+    artiq_builtin = True
 
 
 @nac3
 class SPIError(Exception):
     """Raised when a SPI transaction fails."""
-    pass
+    artiq_builtin = True
+
diff --git a/flake.lock b/flake.lock
index e289af883..f6452e8ce 100644
--- a/flake.lock
+++ b/flake.lock
@@ -45,11 +45,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1646904536,
-        "narHash": "sha256-1iyrx16xgQMjQZt2ZjqnNj5nm50gHoqdg07UGhHzsy8=",
+        "lastModified": 1647501180,
+        "narHash": "sha256-QWjv7LQRCaNjQ+PzQIs8r7moWxS/Jemaf9jzGb62L84=",
         "ref": "master",
-        "rev": "8fd868a673ffaf89f809bacb95733ca00eba85c9",
-        "revCount": 641,
+        "rev": "fb8553311cf9838156fce39bfba547c0ae099c80",
+        "revCount": 645,
         "type": "git",
         "url": "https://git.m-labs.hk/m-labs/nac3.git"
       },