Author: Ronan Lamy <[email protected]>
Branch:
Changeset: r76510:fd7ffb782207
Date: 2015-03-23 10:48 +0000
http://bitbucket.org/pypy/pypy/changeset/fd7ffb782207/
Log: Remove references to long-dead PyObject from the docs
diff --git a/rpython/doc/rtyper.rst b/rpython/doc/rtyper.rst
--- a/rpython/doc/rtyper.rst
+++ b/rpython/doc/rtyper.rst
@@ -118,8 +118,7 @@
given this representation. The RTyper also computes a ``concretetype`` for
Constants, to match the way they are used in the low-level operations (for
example, ``int_add(x, 1)`` requires a ``Constant(1)`` with
-``concretetype=Signed``, but an untyped ``add(x, 1)`` works with a
-``Constant(1)`` that must actually be a PyObject at run-time).
+``concretetype=Signed``).
In addition to ``lowleveltype``, each Repr subclass provides a set of methods
called ``rtype_op_xxx()`` which define how each high-level operation ``op_xxx``
@@ -306,14 +305,14 @@
~~~~~~~~~~~~~
As in C, pointers provide the indirection needed to make a reference modifiable
-or sharable. Pointers can only point to a structure, an array, a function
-(see below) or a PyObject (see below). Pointers to primitive types, if needed,
-must be done by pointing to a structure with a single field of the required
-type. Pointer types are declared by::
+or sharable. Pointers can only point to a structure, an array or a function
+(see below). Pointers to primitive types, if needed, must be done by pointing
+to a structure with a single field of the required type. Pointer types are
+declared by::
Ptr(TYPE)
-At run-time, pointers to GC structures (GcStruct, GcArray and PyObject) hold a
+At run-time, pointers to GC structures (GcStruct, GcArray) hold a
reference to what they are pointing to. Pointers to non-GC structures that can
go away when their container is deallocated (Struct, Array) must be handled
with care: the bigger structure of which they are part of could be freed while
@@ -356,22 +355,6 @@
:graph: the flow graph of the function.
-The PyObject Type
-~~~~~~~~~~~~~~~~~
-
-This is a special type, for compatibility with CPython: it stands for a
-structure compatible with PyObject. This is also a "container" type (thinking
-about C, this is ``PyObject``, not ``PyObject*``), so it is usually manipulated
-via a Ptr. A typed graph can still contain generic space operations (add,
-getitem, etc.) provided they are applied on objects whose low-level type is
-``Ptr(PyObject)``. In fact, code generators that support this should consider
-that the default type of a variable, if none is specified, is
``Ptr(PyObject)``.
-In this way, they can generate the correct code for fully-untyped flow graphs.
-
-The testing implementation allows you to "create" PyObjects by calling
-``pyobjectptr(obj)``.
-
-
Opaque Types
~~~~~~~~~~~~
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