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Code Issues Projects Releases Packages Wiki Activity Actions 9

gh-108113: Make it possible to create an optimized AST (#108154)

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Irit Katriel 2023-08-21 17:31:30 +01:00 • committed by GitHub
parent 47022a079e
commit 10a91d7e98
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10 changed files with 124 additions and 14 deletions
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25
Python/pythonrun.c
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@ -21,6 +21,7 @@
#include "pycore_pyerrors.h" // _PyErr_GetRaisedException, _Py_Offer_Suggestions
#include "pycore_pylifecycle.h" // _Py_UnhandledKeyboardInterrupt
#include "pycore_pystate.h" // _PyInterpreterState_GET()
#include "pycore_symtable.h" // _PyFuture_FromAST()
#include "pycore_sysmodule.h" // _PySys_Audit()
#include "pycore_traceback.h" // _PyTraceBack_Print_Indented()
@ -1790,6 +1791,24 @@ error:
return NULL;
}
static int
ast_optimize(mod_ty mod, PyObject *filename, PyCompilerFlags *cf,
int optimize, PyArena *arena)
{
PyFutureFeatures future;
if (!_PyFuture_FromAST(mod, filename, &future)) {
return -1;
}
int flags = future.ff_features | cf->cf_flags;
if (optimize == -1) {
optimize = _Py_GetConfig()->optimization_level;
}
if (!_PyAST_Optimize(mod, arena, optimize, flags)) {
return -1;
}
return 0;
}
PyObject *
Py_CompileStringObject(const char *str, PyObject *filename, int start,
PyCompilerFlags *flags, int optimize)
@ -1806,6 +1825,12 @@ Py_CompileStringObject(const char *str, PyObject *filename, int start,
return NULL;
}
if (flags && (flags->cf_flags & PyCF_ONLY_AST)) {
if ((flags->cf_flags & PyCF_OPTIMIZED_AST) == PyCF_OPTIMIZED_AST) {
if (ast_optimize(mod, filename, flags, optimize, arena) < 0) {
_PyArena_Free(arena);
return NULL;
}
}
PyObject *result = PyAST_mod2obj(mod);
_PyArena_Free(arena);
return result;