diff options
Diffstat (limited to 'src/runtime/python/pypgf.c')
| -rw-r--r-- | src/runtime/python/pypgf.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/runtime/python/pypgf.c b/src/runtime/python/pypgf.c index 094744885..b623f6a81 100644 --- a/src/runtime/python/pypgf.c +++ b/src/runtime/python/pypgf.c @@ -2215,6 +2215,30 @@ pgf_readType(PyObject *self, PyObject *args) { return pytype; } +static PyObject* +pgf_graphvizAbstractTree(PyObject *self, PyObject *args) { + ExprObject* pyexpr; + if (!PyArg_ParseTuple(args, "O!", &pgf_ExprType, &pyexpr)) + return NULL; + + GuPool* tmp_pool = gu_local_pool(); + GuExn* err = gu_new_exn(NULL, gu_kind(type), tmp_pool); + GuStringBuf* sbuf = gu_string_buf(tmp_pool); + GuWriter* wtr = gu_string_buf_writer(sbuf); + + pgf_graphviz_abstract_tree(pyexpr->expr, wtr, err); + if (!gu_ok(err)) { + PyErr_SetString(PGFError, "The abstract tree cannot be visualized"); + return NULL; + } + + GuString str = gu_string_buf_freeze(sbuf, tmp_pool); + PyObject* pystr = gu2py_string(str); + + gu_pool_free(tmp_pool); + return pystr; +} + static PyMethodDef module_methods[] = { {"readPGF", (void*)pgf_readPGF, METH_VARARGS, "Reads a PGF file in memory"}, @@ -2222,6 +2246,8 @@ static PyMethodDef module_methods[] = { "Parses a string as an abstract tree"}, {"readType", (void*)pgf_readType, METH_VARARGS, "Parses a string as an abstract type"}, + {"graphvizAbstractTree", (void*)pgf_graphvizAbstractTree, METH_VARARGS, + "Renders an abstract syntax tree in a Graphviz format"}, {NULL, NULL, 0, NULL} /* Sentinel */ }; |