copy frameobject.h and _warnings.c from CPython to Pyston

from_cpython/CMakeLists.txt

@@ -114,6 +114,7 @@ file(GLOB_RECURSE STDPYTHON_SRCS Python
     Python-ast.c
     random.c
     structmember.c
+    _warnings.c
     )
 
 # compile specified files in from_cpython/Python

from_cpython/Include/frameobject.h

+
+/* Frame object interface */
+
+#ifndef Py_FRAMEOBJECT_H
+#define Py_FRAMEOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    int b_type;			/* what kind of block this is */
+    int b_handler;		/* where to jump to find handler */
+    int b_level;		/* value stack level to pop to */
+} PyTryBlock;
+
+typedef struct _frame {
+    PyObject_VAR_HEAD
+    struct _frame *f_back;	/* previous frame, or NULL */
+    PyCodeObject *f_code;	/* code segment */
+    PyObject *f_builtins;	/* builtin symbol table (PyDictObject) */
+    PyObject *f_globals;	/* global symbol table (PyDictObject) */
+    PyObject *f_locals;		/* local symbol table (any mapping) */
+    PyObject **f_valuestack;	/* points after the last local */
+    /* Next free slot in f_valuestack.  Frame creation sets to f_valuestack.
+       Frame evaluation usually NULLs it, but a frame that yields sets it
+       to the current stack top. */
+    PyObject **f_stacktop;
+    PyObject *f_trace;		/* Trace function */
+
+    /* If an exception is raised in this frame, the next three are used to
+     * record the exception info (if any) originally in the thread state.  See
+     * comments before set_exc_info() -- it's not obvious.
+     * Invariant:  if _type is NULL, then so are _value and _traceback.
+     * Desired invariant:  all three are NULL, or all three are non-NULL.  That
+     * one isn't currently true, but "should be".
+     */
+    PyObject *f_exc_type, *f_exc_value, *f_exc_traceback;
+
+    PyThreadState *f_tstate;
+    int f_lasti;		/* Last instruction if called */
+    /* Call PyFrame_GetLineNumber() instead of reading this field
+       directly.  As of 2.3 f_lineno is only valid when tracing is
+       active (i.e. when f_trace is set).  At other times we use
+       PyCode_Addr2Line to calculate the line from the current
+       bytecode index. */
+    int f_lineno;		/* Current line number */
+    int f_iblock;		/* index in f_blockstack */
+    PyTryBlock f_blockstack[CO_MAXBLOCKS]; /* for try and loop blocks */
+    PyObject *f_localsplus[1];	/* locals+stack, dynamically sized */
+} PyFrameObject;
+
+
+/* Standard object interface */
+
+PyAPI_DATA(PyTypeObject) PyFrame_Type;
+
+#define PyFrame_Check(op) ((op)->ob_type == &PyFrame_Type)
+#define PyFrame_IsRestricted(f) \
+	((f)->f_builtins != (f)->f_tstate->interp->builtins)
+
+PyAPI_FUNC(PyFrameObject *) PyFrame_New(PyThreadState *, PyCodeObject *,
+                                       PyObject *, PyObject *);
+
+
+/* The rest of the interface is specific for frame objects */
+
+/* Block management functions */
+
+PyAPI_FUNC(void) PyFrame_BlockSetup(PyFrameObject *, int, int, int);
+PyAPI_FUNC(PyTryBlock *) PyFrame_BlockPop(PyFrameObject *);
+
+/* Extend the value stack */
+
+PyAPI_FUNC(PyObject **) PyFrame_ExtendStack(PyFrameObject *, int, int);
+
+/* Conversions between "fast locals" and locals in dictionary */
+
+PyAPI_FUNC(void) PyFrame_LocalsToFast(PyFrameObject *, int);
+PyAPI_FUNC(void) PyFrame_FastToLocals(PyFrameObject *);
+
+PyAPI_FUNC(int) PyFrame_ClearFreeList(void);
+#endif
+/* Return the line of code the frame is currently executing. */
+PyAPI_FUNC(int) PyFrame_GetLineNumber(PyObject *) PYSTON_NOEXCEPT;
+
+#ifdef __cplusplus
+}
+#endif /* !Py_FRAMEOBJECT_H */