From 14ec6047844d736fb8efcf416f5ec773cf9235c3 Mon Sep 17 00:00:00 2001
From: "\"Felix Wu\"" <fsw534@gmail.com>
Date: Mon, 31 Mar 2008 10:57:40 -0700
Subject: [PATCH] Cython and C++ exceptions

---
 Cython/Compiler/ExprNodes.py  | 8 ++++++++
 Cython/Compiler/Parsing.py    | 3 +++
 Cython/Compiler/PyrexTypes.py | 6 ++++--
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/Cython/Compiler/ExprNodes.py b/Cython/Compiler/ExprNodes.py
index 25e3a53a..f10853c5 100644
--- a/Cython/Compiler/ExprNodes.py
+++ b/Cython/Compiler/ExprNodes.py
@@ -1678,6 +1678,14 @@ class SimpleCallNode(ExprNode):
                         rhs = typecast(py_object_type, self.type, rhs)
                 else:
                     lhs = ""
+                # <fsw> added for generating C++ try/catch block
+                if func_type.exception_check == '+':
+                    code.putln(
+                    "try {%s%s;} catch(...) {CppExn2PyErr(); %s}" % (
+                        lhs,
+                        rhs,
+                        code.error_goto(self.pos)))
+                    return
                 code.putln(
                     "%s%s; %s" % (
                         lhs,
diff --git a/Cython/Compiler/Parsing.py b/Cython/Compiler/Parsing.py
index 273536b7..da25abd9 100644
--- a/Cython/Compiler/Parsing.py
+++ b/Cython/Compiler/Parsing.py
@@ -1645,6 +1645,9 @@ def p_exception_value_clause(s):
         if s.sy == '*':
             exc_check = 1
             s.next()
+        elif s.sy == '+':
+            exc_check = '+'
+            s.next()
         else:
             if s.sy == '?':
                 exc_check = 1
diff --git a/Cython/Compiler/PyrexTypes.py b/Cython/Compiler/PyrexTypes.py
index 6ea56847..bf3e6f9f 100644
--- a/Cython/Compiler/PyrexTypes.py
+++ b/Cython/Compiler/PyrexTypes.py
@@ -747,8 +747,10 @@ class CFuncType(CType):
                 exc_clause = " except? %s" % self.exception_value
             elif self.exception_value:
                 exc_clause = " except %s" % self.exception_value
-            elif self.exception_check:
-                exc_clause = " except *"
+            elif self.exception_check == '+':
+                exc_clause = " except +"
+            else:
+                " except *"
         cc = self.calling_convention_prefix()
         if (not entity_code and cc) or entity_code.startswith("*"):
             entity_code = "(%s%s)" % (cc, entity_code)
-- 
2.26.2