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#include <Python.h>
#include "structmember.h"
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include "funcs.h"
#define PYMETHOD(name, FROM, method, TO) \
static PyObject * name(PyObject *, PyObject *args) { \
try { \
FROM(med) \
return TO(method(med)); \
} \
catch (std::string e) { \
PyErr_SetString(PyExc_Exception, e.c_str()); \
return NULL; \
} \
}
#define FROMSTR(v) \
const char *command; \
int len; \
if (!PyArg_ParseTuple(args, "s#", &command, &len)) \
return NULL; \
std::string v = std::string(command, len); \
#define FROMNODE(v) \
PyObject *node; \
if (!PyArg_ParseTuple(args, "O", &node)) \
return NULL; \
Node v = cppifyNode(node);
#define FROMLIST(v) \
PyObject *node; \
if (!PyArg_ParseTuple(args, "O", &node)) \
return NULL; \
std::vector<Node> v = cppifyNodeList(node);
// Convert metadata into python wrapper form [file, ln, ch]
PyObject* pyifyMetadata(Metadata m) {
PyObject* a = PyList_New(0);
PyList_Append(a, Py_BuildValue("s#", m.file.c_str(), m.file.length()));
PyList_Append(a, Py_BuildValue("i", m.ln));
PyList_Append(a, Py_BuildValue("i", m.ch));
return a;
}
// Convert node into python wrapper form
// [token=0/astnode=1, val, metadata, args]
PyObject* pyifyNode(Node n) {
PyObject* a = PyList_New(0);
PyList_Append(a, Py_BuildValue("i", n.type == ASTNODE));
PyList_Append(a, Py_BuildValue("s#", n.val.c_str(), n.val.length()));
PyList_Append(a, pyifyMetadata(n.metadata));
for (unsigned i = 0; i < n.args.size(); i++)
PyList_Append(a, pyifyNode(n.args[i]));
return a;
}
// Convert string into python wrapper form
PyObject* pyifyString(std::string s) {
return Py_BuildValue("s#", s.c_str(), s.length());
}
// Convert list of nodes into python wrapper form
PyObject* pyifyNodeList(std::vector<Node> n) {
PyObject* a = PyList_New(0);
for (unsigned i = 0; i < n.size(); i++)
PyList_Append(a, pyifyNode(n[i]));
return a;
}
// Convert pyobject int into normal form
int cppifyInt(PyObject* o) {
int out;
if (!PyArg_Parse(o, "i", &out))
err("Argument should be integer", Metadata());
return out;
}
// Convert pyobject string into normal form
std::string cppifyString(PyObject* o) {
const char *command;
if (!PyArg_Parse(o, "s", &command))
err("Argument should be string", Metadata());
return std::string(command);
}
// Convert metadata from python wrapper form
Metadata cppifyMetadata(PyObject* o) {
std::string file = cppifyString(PyList_GetItem(o, 0));
int ln = cppifyInt(PyList_GetItem(o, 1));
int ch = cppifyInt(PyList_GetItem(o, 2));
return Metadata(file, ln, ch);
}
// Convert node from python wrapper form
Node cppifyNode(PyObject* o) {
Node n;
int isAstNode = cppifyInt(PyList_GetItem(o, 0));
n.type = isAstNode ? ASTNODE : TOKEN;
n.val = cppifyString(PyList_GetItem(o, 1));
n.metadata = cppifyMetadata(PyList_GetItem(o, 2));
std::vector<Node> args;
for (int i = 3; i < PyList_Size(o); i++) {
args.push_back(cppifyNode(PyList_GetItem(o, i)));
}
n.args = args;
return n;
}
//Convert list of nodes into normal form
std::vector<Node> cppifyNodeList(PyObject* o) {
std::vector<Node> out;
for (int i = 0; i < PyList_Size(o); i++) {
out.push_back(cppifyNode(PyList_GetItem(o,i)));
}
return out;
}
PYMETHOD(ps_compile, FROMSTR, compile, pyifyString)
PYMETHOD(ps_compile_chunk, FROMSTR, compileChunk, pyifyString)
PYMETHOD(ps_compile_to_lll, FROMSTR, compileToLLL, pyifyNode)
PYMETHOD(ps_compile_chunk_to_lll, FROMSTR, compileChunkToLLL, pyifyNode)
PYMETHOD(ps_compile_lll, FROMNODE, compileLLL, pyifyString)
PYMETHOD(ps_parse, FROMSTR, parseSerpent, pyifyNode)
PYMETHOD(ps_rewrite, FROMNODE, rewrite, pyifyNode)
PYMETHOD(ps_rewrite_chunk, FROMNODE, rewriteChunk, pyifyNode)
PYMETHOD(ps_pretty_compile, FROMSTR, prettyCompile, pyifyNodeList)
PYMETHOD(ps_pretty_compile_chunk, FROMSTR, prettyCompileChunk, pyifyNodeList)
PYMETHOD(ps_pretty_compile_lll, FROMNODE, prettyCompileLLL, pyifyNodeList)
PYMETHOD(ps_serialize, FROMLIST, serialize, pyifyString)
PYMETHOD(ps_deserialize, FROMSTR, deserialize, pyifyNodeList)
PYMETHOD(ps_parse_lll, FROMSTR, parseLLL, pyifyNode)
static PyMethodDef PyextMethods[] = {
{"compile", ps_compile, METH_VARARGS,
"Compile code."},
{"compile_chunk", ps_compile_chunk, METH_VARARGS,
"Compile code chunk (no wrappers)."},
{"compile_to_lll", ps_compile_to_lll, METH_VARARGS,
"Compile code to LLL."},
{"compile_chunk_to_lll", ps_compile_chunk_to_lll, METH_VARARGS,
"Compile code chunk to LLL (no wrappers)."},
{"compile_lll", ps_compile_lll, METH_VARARGS,
"Compile LLL to EVM."},
{"parse", ps_parse, METH_VARARGS,
"Parse serpent"},
{"rewrite", ps_rewrite, METH_VARARGS,
"Rewrite parsed serpent to LLL"},
{"rewrite_chunk", ps_rewrite_chunk, METH_VARARGS,
"Rewrite parsed serpent to LLL (no wrappers)"},
{"pretty_compile", ps_pretty_compile, METH_VARARGS,
"Compile to EVM opcodes"},
{"pretty_compile_chunk", ps_pretty_compile_chunk, METH_VARARGS,
"Compile chunk to EVM opcodes (no wrappers)"},
{"pretty_compile_lll", ps_pretty_compile_lll, METH_VARARGS,
"Compile LLL to EVM opcodes"},
{"serialize", ps_serialize, METH_VARARGS,
"Convert EVM opcodes to bin"},
{"deserialize", ps_deserialize, METH_VARARGS,
"Convert EVM bin to opcodes"},
{"parse_lll", ps_parse_lll, METH_VARARGS,
"Parse LLL"},
{NULL, NULL, 0, NULL} /* Sentinel */
};
PyMODINIT_FUNC initserpent_pyext(void)
{
Py_InitModule( "serpent_pyext", PyextMethods );
}
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