ackandClaude Fable 5.1
760fda5470
Assembled from klammertext-dev ed13dfaa5b7a. kpy/klammertext.cpp is a CPython extension module giving a Python script an instance of the Machine class -- ktext in-process, set up through the same functions the command uses. Errors map one-to-one to Python exceptions under the C++ names; an @eval's Python exception is chained as __cause__. Built by make -C mac, found through PYTHONPATH (env/runtime.env sets it), tested by tst/kpy_test.sh. Three engine changes came with it: Error::message(), set_command_state(), and the @eval error report carrying its traceback. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Uv7KWxafinDPraswEf4GsC
45 lines
1.8 KiB
C++
45 lines
1.8 KiB
C++
#pragma once
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#include <string>
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#include <Python.h>
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#include "machine.h"
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class Eval_python
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{
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public:
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static std::regex statement_delimiter;
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explicit Eval_python(Machine& machine, const Locator& loc);
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Eval_python(const Eval_python&) = delete;
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Eval_python& operator=(const Eval_python&) = delete;
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~Eval_python();
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void add_module_path(const std::string& path);
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std::vector<std::string> parse_modules(std::string code);
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void import_module(const std::string& module_name, bool verify = true);
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std::string get_result(PyObject* result_object);
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// The Python exception currently raised (there must be one): clear it,
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// return the formatted traceback, and keep the exception object in the
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// slot below. ktext puts the text into the Error it throws; the Python
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// binding (kpy/) additionally chains the object as the Error's __cause__,
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// so a script sees the ZeroDivisionError its @eval raised, with its
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// traceback, and not only a description of it.
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std::string fetch_python_exception();
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// Take ownership of the exception kept by the last fetch (nullptr if
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// none); the slot is cleared. ktext never calls this: it terminates on
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// the Error, and the interpreter is torn down with the process.
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static PyObject* take_last_exception();
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std::string eval_expression(const std::string& expression, bool import_modules = true);
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std::string eval_statements(const std::string& script);
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std::string eval(std::string code);
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//std::string eval_katom_list(const katom_iter& begin, const katom_iter& end);
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std::string eval_katom_list(
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std::vector<Katom>& katoms,
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const std::vector<Katom>::iterator& begin, const std::vector<Katom>::iterator& end);
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Machine m_machine;
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Locator m_loc;
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PyObject* m_globals;
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PyObject* m_locals;
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static PyObject* s_last_exception;
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};
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