Some more recursion-depth-checking fixes

- Fix a test to do the correct number of iterations
- Catch more exceptions in PyDict_GetItem/createModule (now that more things can throw)

src/capi/modsupport.cpp

@@ -434,7 +434,13 @@ extern "C" PyObject* Py_InitModule4(const char* name, PyMethodDef* methods, cons
         }
     }
 
-    BoxedModule* module = createModule(autoDecref(boxString(name)), NULL, doc);
+    BoxedModule* module;
+    try {
+        module = createModule(autoDecref(boxString(name)), NULL, doc);
+    } catch (ExcInfo e) {
+        setCAPIException(e);
+        return NULL;
+    }
 
     // Pass self as is, even if NULL we are not allowed to change it to None
     Box* passthrough = static_cast<Box*>(self);

src/core/types.h

@@ -975,7 +975,7 @@ class BoxedClass;
 // TODO these shouldn't be here
 void setupRuntime();
 Box* createAndRunModule(BoxedString* name, const std::string& fn);
-BORROWED(BoxedModule*) createModule(BoxedString* name, const char* fn = NULL, const char* doc = NULL) noexcept;
+BORROWED(BoxedModule*) createModule(BoxedString* name, const char* fn = NULL, const char* doc = NULL);
 Box* moduleInit(BoxedModule* self, Box* name, Box* doc = NULL);
 
 // TODO where to put this

src/runtime/dict.cpp

@@ -360,10 +360,23 @@ extern "C" BORROWED(PyObject*) PyDict_GetItem(PyObject* dict, PyObject* key) noe
     if (PyDict_Check(dict)) {
         BoxedDict* d = static_cast<BoxedDict*>(dict);
 
+        BoxAndHash h;
+        try {
+            h = BoxAndHash(key);
+        } catch (ExcInfo e) {
+            e.clear();
+            return NULL;
+        }
+
         /* preserve the existing exception */
         PyObject* err_type, *err_value, *err_tb;
         PyErr_Fetch(&err_type, &err_value, &err_tb);
-        Box* b = d->getOrNull(key);
+        Box* b = NULL;
+        try {
+            b = d->getOrNull(h);
+        } catch (ExcInfo e) {
+            e.clear();
+        }
         /* ignore errors */
         PyErr_Restore(err_type, err_value, err_tb);
         return b;

src/runtime/types.cpp

@@ -4725,7 +4725,7 @@ void setupRuntime() {
     TRACK_ALLOCATIONS = true;
 }
 
-BORROWED(BoxedModule*) createModule(BoxedString* name, const char* fn, const char* doc) noexcept {
+BORROWED(BoxedModule*) createModule(BoxedString* name, const char* fn, const char* doc) {
     assert((!fn || strlen(fn)) && "probably wanted to set the fn to <stdin>?");
 
     BoxedDict* d = getSysModulesDict();

src/runtime/types.h

@@ -1035,13 +1035,15 @@ public:
 
     DEFAULT_CLASS_SIMPLE(dict_cls, true);
 
-    BORROWED(Box*) getOrNull(Box* k) {
-        const auto& p = d.find(BoxAndHash(k));
+    BORROWED(Box*) getOrNull(BoxAndHash k) {
+        const auto& p = d.find(k);
         if (p != d.end())
             return p->second;
         return NULL;
     }
 
+    BORROWED(Box*) getOrNull(Box* k) { return getOrNull(BoxAndHash(k)); }
+
     class iterator {
     private:
         DictMap::iterator it;

test/tests/generator_recursion_checking.py

@@ -7,5 +7,5 @@ def test(n):
         g.next()
         l.append(g)
 
-for i in xrange(1000):
+for i in xrange(3):
     test(3500)