Gav Wood
11 years ago
14 changed files with 185 additions and 171 deletions
@ -1,132 +1,155 @@ |
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#include <boost/python.hpp> |
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#include <boost/python/stl_iterator.hpp> |
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#include <Python.h> |
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#include <libserpent/structmember.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <iostream> |
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#include <libserpent/funcs.h> |
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// Provide a python wrapper for the C++ functions
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#define PYMETHOD(name, FROM, method, TO) \ |
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static PyObject * name(PyObject *self, PyObject *args) { \ |
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FROM(med) \ |
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return TO(method(med)); \ |
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} |
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|
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using namespace boost::python; |
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#define FROMSTR(v) \ |
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const char *command; \ |
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int len; \ |
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if (!PyArg_ParseTuple(args, "s#", &command, &len)) \ |
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return NULL; \ |
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std::string v = std::string(command, len); \ |
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|
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//std::vector to python list converter
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//http://stackoverflow.com/questions/5314319/how-to-export-stdvector
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template<class T> |
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struct VecToList |
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{ |
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static PyObject* convert(const std::vector<T>& vec) |
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{ |
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boost::python::list* l = new boost::python::list(); |
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for(size_t i = 0; i < vec.size(); i++) |
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(*l).append(vec[i]); |
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return l->ptr(); |
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} |
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}; |
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#define FROMNODE(v) \ |
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PyObject *node; \ |
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if (!PyArg_ParseTuple(args, "O", &node)) \ |
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return NULL; \ |
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Node v = cppifyNode(node); |
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|
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// python list to std::vector converter
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//http://code.activestate.com/lists/python-cplusplus-sig/16463/
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template<typename T> |
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struct Vector_from_python_list |
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{ |
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#define FROMLIST(v) \ |
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PyObject *node; \ |
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if (!PyArg_ParseTuple(args, "O", &node)) \ |
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return NULL; \ |
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std::vector<Node> v = cppifyNodeList(node); |
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|
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Vector_from_python_list() |
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{ |
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using namespace boost::python; |
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using namespace boost::python::converter; |
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registry::push_back(&Vector_from_python_list<T>::convertible, |
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&Vector_from_python_list<T>::construct, |
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type_id<std::vector<T> |
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>()); |
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// Convert metadata into python wrapper form [file, ln, ch]
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PyObject* pyifyMetadata(Metadata m) { |
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PyObject* a = PyList_New(0); |
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PyList_Append(a, Py_BuildValue("s#", m.file.c_str(), m.file.length())); |
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PyList_Append(a, Py_BuildValue("i", m.ln)); |
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PyList_Append(a, Py_BuildValue("i", m.ch)); |
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return a; |
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} |
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|
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// Convert node into python wrapper form
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// [token=0/astnode=1, val, metadata, args]
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PyObject* pyifyNode(Node n) { |
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PyObject* a = PyList_New(0); |
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PyList_Append(a, Py_BuildValue("i", n.type == ASTNODE)); |
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PyList_Append(a, Py_BuildValue("s#", n.val.c_str(), n.val.length())); |
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PyList_Append(a, pyifyMetadata(n.metadata)); |
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for (unsigned i = 0; i < n.args.size(); i++) |
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PyList_Append(a, pyifyNode(n.args[i])); |
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return a; |
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} |
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|
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// Convert string into python wrapper form
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PyObject* pyifyString(std::string s) { |
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return Py_BuildValue("s#", s.c_str(), s.length()); |
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} |
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// Convert list of nodes into python wrapper form
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PyObject* pyifyNodeList(std::vector<Node> n) { |
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PyObject* a = PyList_New(0); |
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for (unsigned i = 0; i < n.size(); i++) |
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PyList_Append(a, pyifyNode(n[i])); |
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return a; |
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} |
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// Convert pyobject int into normal form
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int cppifyInt(PyObject* o) { |
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int out; |
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if (!PyArg_Parse(o, "i", &out)) |
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err("Argument should be integer", Metadata()); |
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return out; |
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} |
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// Convert pyobject string into normal form
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std::string cppifyString(PyObject* o) { |
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const char *command; |
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if (!PyArg_Parse(o, "s", &command)) |
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err("Argument should be string", Metadata()); |
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return std::string(command); |
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} |
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// Convert metadata from python wrapper form
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Metadata cppifyMetadata(PyObject* o) { |
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std::string file = cppifyString(PyList_GetItem(o, 0)); |
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int ln = cppifyInt(PyList_GetItem(o, 1)); |
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int ch = cppifyInt(PyList_GetItem(o, 2)); |
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return Metadata(file, ln, ch); |
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} |
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// Convert node from python wrapper form
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Node cppifyNode(PyObject* o) { |
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Node n; |
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int isAstNode = cppifyInt(PyList_GetItem(o, 0)); |
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n.type = isAstNode ? ASTNODE : TOKEN; |
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n.val = cppifyString(PyList_GetItem(o, 1)); |
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n.metadata = cppifyMetadata(PyList_GetItem(o, 2)); |
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std::vector<Node> args; |
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for (int i = 3; i < PyList_Size(o); i++) { |
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args.push_back(cppifyNode(PyList_GetItem(o, i))); |
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} |
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// Determine if obj_ptr can be converted in a std::vector<T>
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static void* convertible(PyObject* obj_ptr) |
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{ |
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if (!PyList_Check(obj_ptr)){ |
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return 0; |
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} |
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return obj_ptr; |
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} |
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// Convert obj_ptr into a std::vector<T>
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static void construct( |
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PyObject* obj_ptr, |
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boost::python::converter::rvalue_from_python_stage1_data* data) |
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{ |
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using namespace boost::python; |
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// Extract the character data from the python string
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// const char* value = PyString_AsString(obj_ptr);
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list l(handle<>(borrowed(obj_ptr))); |
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// // Verify that obj_ptr is a string (should be ensured by convertible())
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// assert(value);
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// Grab pointer to memory into which to construct the new std::vector<T>
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void* storage = ( |
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(boost::python::converter::rvalue_from_python_storage<std::vector<T> |
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>*) |
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data)->storage.bytes; |
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// in-place construct the new std::vector<T> using the character data
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// extraced from the python object
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std::vector<T>& v = *(new (storage) std::vector<T>()); |
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// populate the vector from list contains !!!
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int le = len(l); |
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v.resize(le); |
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for(int i = 0;i!=le;++i){ |
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v[i] = extract<T>(l[i]); |
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} |
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// Stash the memory chunk pointer for later use by boost.python
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data->convertible = storage; |
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} |
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}; |
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n.args = args; |
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return n; |
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} |
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std::string printMetadata(Metadata m) { |
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return "["+m.file+" "+intToDecimal(m.ln)+" "+intToDecimal(m.ch)+"]"; |
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//Convert list of nodes into normal form
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std::vector<Node> cppifyNodeList(PyObject* o) { |
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std::vector<Node> out; |
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for (int i = 0; i < PyList_Size(o); i++) { |
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out.push_back(cppifyNode(PyList_GetItem(o,i))); |
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} |
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return out; |
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} |
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BOOST_PYTHON_FUNCTION_OVERLOADS(tokenize_overloads, tokenize, 1, 2); |
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BOOST_PYTHON_FUNCTION_OVERLOADS(printast_overloads, printAST, 1, 2); |
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BOOST_PYTHON_FUNCTION_OVERLOADS(parselll_overloads, parseLLL, 1, 2); |
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//BOOST_PYTHON_FUNCTION_OVERLOADS(metadata_overloads, Metadata, 0, 3);
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BOOST_PYTHON_MODULE(pyserpent) |
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PYMETHOD(ps_compile, FROMSTR, compile, pyifyString) |
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PYMETHOD(ps_compile_to_lll, FROMSTR, compileToLLL, pyifyNode) |
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PYMETHOD(ps_compile_lll, FROMNODE, compileLLL, pyifyString) |
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PYMETHOD(ps_parse, FROMSTR, parseSerpent, pyifyNode) |
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PYMETHOD(ps_rewrite, FROMNODE, rewrite, pyifyNode) |
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PYMETHOD(ps_pretty_compile, FROMSTR, prettyCompile, pyifyNodeList) |
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PYMETHOD(ps_pretty_compile_lll, FROMNODE, prettyCompileLLL, pyifyNodeList) |
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PYMETHOD(ps_serialize, FROMLIST, serialize, pyifyString) |
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PYMETHOD(ps_deserialize, FROMSTR, deserialize, pyifyNodeList) |
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PYMETHOD(ps_parse_lll, FROMSTR, parseLLL, pyifyNode) |
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static PyMethodDef PyextMethods[] = { |
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{"compile", ps_compile, METH_VARARGS, |
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"Compile code."}, |
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{"compile_to_lll", ps_parse, METH_VARARGS, |
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"Compile code to LLL."}, |
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{"compile_lll", ps_compile_lll, METH_VARARGS, |
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"Compile LLL to EVM."}, |
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{"parse", ps_parse, METH_VARARGS, |
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"Parse serpent"}, |
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{"rewrite", ps_rewrite, METH_VARARGS, |
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"Rewrite parsed serpent to LLL"}, |
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{"pretty_compile", ps_pretty_compile, METH_VARARGS, |
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"Compile to EVM opcodes"}, |
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{"pretty_compile_lll", ps_pretty_compile_lll, METH_VARARGS, |
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"Compile LLL to EVM opcodes"}, |
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{"serialize", ps_serialize, METH_VARARGS, |
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"Convert EVM opcodes to bin"}, |
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{"deserialize", ps_deserialize, METH_VARARGS, |
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"Convert EVM bin to opcodes"}, |
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{"parse_lll", ps_parse_lll, METH_VARARGS, |
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"Parse LLL"}, |
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{NULL, NULL, 0, NULL} /* Sentinel */ |
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}; |
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PyMODINIT_FUNC initpyext(void) |
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{ |
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def("tokenize", tokenize, tokenize_overloads()); |
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def("parse", parseSerpent); |
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def("parseLLL", parseLLL, parselll_overloads()); |
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def("rewrite", rewrite); |
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def("compile_to_lll", compileToLLL); |
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def("encode_datalist", encodeDatalist); |
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def("decode_datalist", decodeDatalist); |
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def("compile_lll", compileLLL); |
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def("assemble", assemble); |
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def("deserialize", deserialize); |
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def("dereference", dereference); |
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def("flatten", flatten); |
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def("serialize", serialize); |
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def("compile", compile); |
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def("pretty_compile", prettyCompile); |
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def("pretty_assemble", prettyAssemble); |
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//class_<Node>("Node",init<>())
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to_python_converter<std::vector<Node,class std::allocator<Node> >, |
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VecToList<Node> >(); |
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to_python_converter<std::vector<std::string,class std::allocator<std::string> >, |
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VecToList<std::string> >(); |
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Vector_from_python_list<Node>(); |
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Vector_from_python_list<std::string>(); |
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class_<Metadata>("Metadata",init<>()) |
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.def(init<std::string, int, int>()) |
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.def("__str__", printMetadata) |
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.def("__repr__", printMetadata) |
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; |
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class_<Node>("Node",init<>()) |
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.def(init<>()) |
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.def("__str__", printAST, printast_overloads()) |
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.def("__repr__", printAST, printast_overloads()) |
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; |
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//class_<Node>("Vector",init<>())
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// .def(init<>());
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PyObject *m = Py_InitModule( "pyext", PyextMethods ); |
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} |
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@ -0,0 +1,11 @@ |
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#!/bin/bash |
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opwd="$PWD" |
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cd ../serpent |
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git pull |
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cp bignum.* compiler.* funcs.* lllparser.* opcodes.h parser.* rewriter.* tokenize.* util.* ../cpp-ethereum/libserpent/ |
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cp cmdline.* "$opwd/sc/" |
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cp pyserpent.* "$opwd/libpyserpent/" |
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cd "$opwd" |
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perl -i -p -e 's:include "(.*)":include <libserpent/$1>:gc' sc/* libpyserpent/* |
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