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41bc101dd6
The switch cases (really TARGET(opcode) macros) have been moved from ceval.c to generated_cases.c.h. That file is generated from instruction definitions in bytecodes.c (which impersonates a C file so the C code it contains can be edited without custom support in e.g. VS Code). The code generator lives in Tools/cases_generator (it has a README.md explaining how it works). The DSL used to describe the instructions is a work in progress, described in https://github.com/faster-cpython/ideas/blob/main/3.12/interpreter_definition.md. This is surely a work-in-progress. An easy next step could be auto-generating super-instructions. **IMPORTANT: Merge Conflicts** If you get a merge conflict for instruction implementations in ceval.c, your best bet is to port your changes to bytecodes.c. That file looks almost the same as the original cases, except instead of `TARGET(NAME)` it uses `inst(NAME)`, and the trailing `DISPATCH()` call is omitted (the code generator adds it automatically).
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
#include "Python.h"
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#include "pycore_abstract.h" // _PyIndex_Check()
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#include "pycore_call.h" // _PyObject_FastCallDictTstate()
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#include "pycore_ceval.h" // _PyEval_SignalAsyncExc()
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#include "pycore_code.h"
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#include "pycore_function.h"
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#include "pycore_long.h" // _PyLong_GetZero()
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#include "pycore_object.h" // _PyObject_GC_TRACK()
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#include "pycore_moduleobject.h" // PyModuleObject
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#include "pycore_opcode.h" // EXTRA_CASES
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#include "pycore_pyerrors.h" // _PyErr_Fetch()
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#include "pycore_pymem.h" // _PyMem_IsPtrFreed()
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#include "pycore_pystate.h" // _PyInterpreterState_GET()
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#include "pycore_range.h" // _PyRangeIterObject
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#include "pycore_sliceobject.h" // _PyBuildSlice_ConsumeRefs
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#include "pycore_sysmodule.h" // _PySys_Audit()
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#include "pycore_tuple.h" // _PyTuple_ITEMS()
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#include "pycore_emscripten_signal.h" // _Py_CHECK_EMSCRIPTEN_SIGNALS
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#include "pycore_dict.h"
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#include "dictobject.h"
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#include "pycore_frame.h"
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#include "opcode.h"
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#include "pydtrace.h"
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#include "setobject.h"
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#include "structmember.h" // struct PyMemberDef, T_OFFSET_EX
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void _PyFloat_ExactDealloc(PyObject *);
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void _PyUnicode_ExactDealloc(PyObject *);
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#define SET_TOP(v) (stack_pointer[-1] = (v))
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#define PEEK(n) (stack_pointer[-(n)])
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#define GETLOCAL(i) (frame->localsplus[i])
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#define inst(name) case name:
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#define family(name) static int family_##name
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#define NAME_ERROR_MSG \
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"name '%.200s' is not defined"
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typedef struct {
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PyObject *kwnames;
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} CallShape;
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static void
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dummy_func(
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PyThreadState *tstate,
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_PyInterpreterFrame *frame,
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unsigned char opcode,
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unsigned int oparg,
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_Py_atomic_int * const eval_breaker,
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_PyCFrame cframe,
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PyObject *names,
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PyObject *consts,
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_Py_CODEUNIT *next_instr,
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PyObject **stack_pointer,
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CallShape call_shape,
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_Py_CODEUNIT *first_instr,
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int throwflag,
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binaryfunc binary_ops[]
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)
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{
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switch (opcode) {
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/* BEWARE!
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It is essential that any operation that fails must goto error
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and that all operation that succeed call DISPATCH() ! */
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// BEGIN BYTECODES //
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// INSERT CASES HERE //
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// END BYTECODES //
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}
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error:;
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exception_unwind:;
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handle_eval_breaker:;
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resume_frame:;
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resume_with_error:;
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start_frame:;
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unbound_local_error:;
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}
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// Families go below this point //
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