Cython and C++ exceptions

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,

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

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)