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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/* $Rev$ $Date$ */
#ifndef tuscany_python_driver_hpp
#define tuscany_python_driver_hpp
/**
* Python evaluator main driver loop.
*/
#include "string.hpp"
#include "stream.hpp"
#include "monad.hpp"
#include "../scheme/driver.hpp"
#include "eval.hpp"
namespace tuscany {
namespace python {
const value evalDriverLoop(PyObject* const script, istream& in, ostream& out, PythonRuntime& py) {
scheme::promptForInput(scheme::evalInputPrompt, out);
const value input = content(scheme::readValue(in));
if (isNil(input))
return input;
const failable<value> output = evalScript(input, script, py);
scheme::announceOutput(scheme::evalOutputPrompt, out);
scheme::userPrint(content(output), out);
return evalDriverLoop(script, in, out, py);
}
const bool evalDriverRun(const char* const path, istream& in, ostream& out) {
PythonRuntime py;
scheme::setupDisplay(out);
ifstream is(path);
const failable<PyObject*> script = readScript(moduleName(path), path, is, py);
if (!hasContent(script))
return true;
evalDriverLoop(content(script), in, out, py);
releaseScript(content(script), py);
return true;
}
}
}
#endif /* tuscany_python_driver_hpp */
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