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implemented computing with abstract syntax trees. It passes all test cases except those that require def rules. The design is consistent with the STG virtual machine

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kr.angelov
2014-07-08 19:45:49 +00:00
parent b3397f8071
commit 0138869499
4 changed files with 473 additions and 3 deletions
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26
src/runtime/python/pypgf.c
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@@ -2301,8 +2301,30 @@ PGF_compute(PGFObject* self, PyObject *args)
if (!PyArg_ParseTuple(args, "O!", &pgf_ExprType, &py_expr))
return NULL;
Py_INCREF(py_expr);
return py_expr;
ExprObject* py_expr_res = (ExprObject*) pgf_ExprType.tp_alloc(&pgf_ExprType, 0);
if (py_expr_res == NULL)
return NULL;
GuPool* tmp_pool = gu_new_pool();
GuExn* err = gu_new_exn(NULL, gu_kind(type), tmp_pool);
py_expr_res->pool = gu_new_pool();
py_expr_res->expr = pgf_compute(self->pgf, py_expr->expr, err,
tmp_pool, py_expr_res->pool);
py_expr_res->master = (PyObject*) self;
Py_INCREF(py_expr_res->master);
if (!gu_ok(err)) {
GuString msg = (GuString) gu_exn_caught_data(err);
PyErr_SetString(PGFError, msg);
Py_DECREF(py_expr_res);
gu_pool_free(tmp_pool);
return NULL;
}
gu_pool_free(tmp_pool);
return py_expr_res;
}
static ExprObject*