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GH-88116: Use a compact format to represent end line and column offsets. (GH-91666)

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* Stores all location info in linetable to conform to PEP 626.

* Remove column table from code objects.

* Remove end-line table from code objects.

* Document new location table format
This commit is contained in:
Mark Shannon 2022-04-21 16:10:37 +01:00 • committed by GitHub
parent 2a5f171759
commit 944fffee89
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GPG key ID: 4AEE18F83AFDEB23
20 changed files with 859 additions and 539 deletions
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16
Python/marshal.c
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@ -564,8 +564,6 @@ w_complex_object(PyObject *v, char flag, WFILE *p)
w_object(co->co_qualname, p);
w_long(co->co_firstlineno, p);
w_object(co->co_linetable, p);
w_object(co->co_endlinetable, p);
w_object(co->co_columntable, p);
w_object(co->co_exceptiontable, p);
Py_DECREF(co_code);
}
@ -1357,9 +1355,7 @@ r_object(RFILE *p)
PyObject *name = NULL;
PyObject *qualname = NULL;
int firstlineno;
PyObject *linetable = NULL;
PyObject* endlinetable = NULL;
PyObject* columntable = NULL;
PyObject* linetable = NULL;
PyObject *exceptiontable = NULL;
idx = r_ref_reserve(flag, p);
@ -1415,12 +1411,6 @@ r_object(RFILE *p)
linetable = r_object(p);
if (linetable == NULL)
goto code_error;
endlinetable = r_object(p);
if (endlinetable == NULL)
goto code_error;
columntable = r_object(p);
if (columntable == NULL)
goto code_error;
exceptiontable = r_object(p);
if (exceptiontable == NULL)
goto code_error;
@ -1434,8 +1424,6 @@ r_object(RFILE *p)
.code = code,
.firstlineno = firstlineno,
.linetable = linetable,
.endlinetable = endlinetable,
.columntable = columntable,
.consts = consts,
.names = names,
@ -1473,8 +1461,6 @@ r_object(RFILE *p)
Py_XDECREF(name);
Py_XDECREF(qualname);
Py_XDECREF(linetable);
Py_XDECREF(endlinetable);
Py_XDECREF(columntable);
Py_XDECREF(exceptiontable);
}
retval = v;