First attempt at autogenerating a family of CPython classes for the v…

…arious tree nodes

Makefile

@@ -30,6 +30,9 @@ optpass.c: optpass.pyx
 tree.c: tree.pyx
 	cython $^ -o $@
 
+tree.pyx: tree.pyx.in
+	cpp $(CFLAGS) $^ -o $@
+
 # Hint for debugging: add -v to the gcc options 
 # to get a command line for invoking individual subprocesses
 # Doing so seems to require that paths be absolute, rather than relative

tree.pyx.in

@@ -0,0 +1,46 @@
+import sys
+
+cdef extern from "config.h":
+    pass
+
+cdef extern from "system.h":
+    pass
+
+cdef extern from "coretypes.h":
+    cdef union tree_node:
+        pass
+    ctypedef tree_node *tree
+
+cdef extern from "tree.h":
+    pass
+
+cdef extern from "gcc-python-wrappers.h":
+   pass
+
+cdef class Tree:
+    cdef tree t
+
+    def __init__(self):
+        self.t = NULL
+
+    cdef __set_ptr(self, tree t):
+        self.t = t
+
+    cdef __get_ptr(self, tree t):
+        self.t = t
+
+    def __repr__(self):
+        return 'tree.Tree(%r)' % 'foo'
+
+
+#define DEFTREECODE(SYM, STRING, TYPE, NARGS)   \
+cdef class SYM(Tree): \
+     pass
+#define END_OF_BASE_TREE_CODES
+#include "all-tree.def"
+#undef DEFTREECODE
+
+cdef extern gcc_python_make_wrapper_tree(tree t):
+    obj = Tree()
+    obj.__set_ptr(t)
+    return obj