Implement PyEval_GetGlobals

Author: msimacek

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/cext/PythonCextCEvalBuiltins.java

@@ -196,4 +196,17 @@ static Object doGeneric(PCode code, Object globals, Object locals,
             return invokeNode.execute(rootCallTarget, pArguments);
         }
     }
+
+    @CApiBuiltin(ret = PyObjectBorrowed, args = {}, call = Direct)
+    abstract static class PyEval_GetGlobals extends CApiNullaryBuiltinNode {
+        @Specialization
+        Object get(
+                        @Bind("this") Node inliningTarget,
+                        @Cached GetCurrentFrameRef getCurrentFrameRef,
+                        @Cached ReadCallerFrameNode readCallerFrameNode) {
+            PFrame.Reference frameRef = getCurrentFrameRef.execute(null, inliningTarget);
+            PFrame pFrame = readCallerFrameNode.executeWith(frameRef, 0);
+            return pFrame.getGlobals();
+        }
+    }
 }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/CApiFunction.java

@@ -715,7 +715,6 @@ public final class CApiFunction {
     @CApiBuiltin(name = "PyEval_EvalFrameEx", ret = PyObject, args = {PyFrameObject, Int}, call = NotImplemented)
     @CApiBuiltin(name = "PyEval_GetFuncDesc", ret = ConstCharPtrAsTruffleString, args = {PyObject}, call = NotImplemented)
     @CApiBuiltin(name = "PyEval_GetFuncName", ret = ConstCharPtrAsTruffleString, args = {PyObject}, call = NotImplemented)
-    @CApiBuiltin(name = "PyEval_GetGlobals", ret = PyObject, args = {}, call = NotImplemented)
     @CApiBuiltin(name = "PyEval_GetLocals", ret = PyObject, args = {}, call = NotImplemented)
     @CApiBuiltin(name = "PyEval_ReleaseLock", ret = Void, args = {}, call = NotImplemented)
     @CApiBuiltin(name = "PyEval_ReleaseThread", ret = Void, args = {PyThreadState}, call = NotImplemented)