From 5504c3ac950e3f34abf74550479111f763825ded Mon Sep 17 00:00:00 2001
From: Wink Saville <wink@saville.com>
Date: Sun, 18 Oct 2015 15:56:20 -0700
Subject: Gracefully handle missing machine info.

---
 interpreter.py | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'interpreter.py')

diff --git a/interpreter.py b/interpreter.py
index 8cb272c..d0f23c6 100644
--- a/interpreter.py
+++ b/interpreter.py
@@ -340,6 +340,11 @@ class BuildMachine(InterpreterObject):
 class CrossMachineInfo(InterpreterObject):
     def __init__(self, cross_info):
         InterpreterObject.__init__(self)
+        minimum_cross_info = {'cpu', 'cpu_family', 'endian', 'system'}
+        if set(cross_info) < minimum_cross_info:
+            raise InterpreterException(
+                'Machine info is currently {}\n'.format(cross_info) +
+                'but is missing {}.'.format(minimum_cross_info - set(cross_info)))
         self.info = cross_info
         self.methods.update({'system' : self.system_method,
                              'cpu' : self.cpu_method,
-- 
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