From: Clifford Wolf <clifford@clifford.at>
Date: Fri, 5 Jul 2019 09:57:41 +0000 (+0200)
Subject: Merge pull request #1159 from btut/fix/1090_segfault_cell_and_wire
X-Git-Tag: yosys-0.9~21
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=17e0cc010c12fc69fdadc2c342da1ef8e16a2d91;p=yosys.git

Merge pull request #1159 from btut/fix/1090_segfault_cell_and_wire

Throw runtime exception when trying to convert inexistend C++ object to Python
---

diff --git a/misc/py_wrap_generator.py b/misc/py_wrap_generator.py
index 9e5727499..66d661fa1 100644
--- a/misc/py_wrap_generator.py
+++ b/misc/py_wrap_generator.py
@@ -779,6 +779,9 @@ class WClass:
 
 			#if self.link_type != link_types.pointer:
 			text += "\n\t\tstatic " + self.name + "* get_py_obj(" + long_name + "* ref)\n\t\t{"
+			text += "\n\t\t\tif(ref == nullptr){"
+			text += "\n\t\t\t\tthrow std::runtime_error(\"" + self.name + " does not exist.\");"
+			text += "\n\t\t\t}"
 			text += "\n\t\t\t" + self.name + "* ret = (" + self.name + "*)malloc(sizeof(" + self.name + "));"
 			if self.link_type == link_types.pointer:
 				text += "\n\t\t\tret->ref_obj = ref;"