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gh-104240: return code unit metadata from codegen #104300

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Merged
merged 2 commits into from
May 9, 2023
Merged

gh-104240: return code unit metadata from codegen #104300

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e3c83dd
gh-104240: return code unit metadata from codegen
iritkatriel May 8, 2023
fc60712
cast to long
iritkatriel May 9, 2023
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2 changes: 1 addition & 1 deletion 2 Lib/test/support/bytecode_helper.py
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Original file line number Diff line number Diff line change
Expand Up @@ -124,7 +124,7 @@ def complete_insts_info(self, insts):
class CodegenTestCase(CompilationStepTestCase):

def generate_code(self, ast):
insts = compiler_codegen(ast, "my_file.py", 0)
insts, _ = compiler_codegen(ast, "my_file.py", 0)
return insts


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2 changes: 1 addition & 1 deletion 2 Lib/test/test_compiler_assemble.py
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Expand Up @@ -52,7 +52,7 @@ def test_simple_expr(self):
'filename' : 'avg.py',
'name' : 'avg',
'qualname' : 'stats.avg',
'consts' : [2],
'consts' : {2 : 0},
'argcount' : 2,
'varnames' : {'x' : 0, 'y' : 1},
}
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2 changes: 1 addition & 1 deletion 2 Modules/_testinternalcapi.c
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Expand Up @@ -670,7 +670,7 @@ _testinternalcapi_assemble_code_object_impl(PyObject *module,
umd.u_cellvars = PyDict_GetItemString(metadata, "cellvars");
umd.u_freevars = PyDict_GetItemString(metadata, "freevars");

assert(PyList_Check(umd.u_consts));
assert(PyDict_Check(umd.u_consts));
assert(PyDict_Check(umd.u_names));
assert(PyDict_Check(umd.u_varnames));
assert(PyDict_Check(umd.u_cellvars));
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50 changes: 47 additions & 3 deletions 50 Python/compile.c
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Expand Up @@ -7261,6 +7261,7 @@ _PyCompile_CodeGen(PyObject *ast, PyObject *filename, PyCompilerFlags *pflags,
int optimize, int compile_mode)
{
PyObject *res = NULL;
PyObject *metadata = NULL;

if (!PyAST_Check(ast)) {
PyErr_SetString(PyExc_TypeError, "expected an AST");
Expand All @@ -7287,14 +7288,53 @@ _PyCompile_CodeGen(PyObject *ast, PyObject *filename, PyCompilerFlags *pflags,
if (compiler_codegen(c, mod) < 0) {
goto finally;
}

_PyCompile_CodeUnitMetadata *umd = &c->u->u_metadata;
metadata = PyDict_New();
if (metadata == NULL) {
goto finally;
}
#define SET_MATADATA_ITEM(key, value) \
if (value != NULL) { \
if (PyDict_SetItemString(metadata, key, value) < 0) goto finally; \
}

SET_MATADATA_ITEM("name", umd->u_name);
SET_MATADATA_ITEM("qualname", umd->u_qualname);
SET_MATADATA_ITEM("consts", umd->u_consts);
SET_MATADATA_ITEM("names", umd->u_names);
SET_MATADATA_ITEM("varnames", umd->u_varnames);
SET_MATADATA_ITEM("cellvars", umd->u_cellvars);
SET_MATADATA_ITEM("freevars", umd->u_freevars);
#undef SET_MATADATA_ITEM

#define SET_MATADATA_INT(key, value) do { \
PyObject *v = PyLong_FromLong((long)value); \
if (v == NULL) goto finally; \
int res = PyDict_SetItemString(metadata, key, v); \
Py_XDECREF(v); \
if (res < 0) goto finally; \
} while (0);

SET_MATADATA_INT("argcount", umd->u_argcount);
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Looks like MSVC wants an explicit cast here.

SET_MATADATA_INT("posonlyargcount", umd->u_posonlyargcount);
SET_MATADATA_INT("kwonlyargcount", umd->u_kwonlyargcount);
#undef SET_MATADATA_INT

int addNone = mod->kind != Expression_kind;
if (add_return_at_end(c, addNone) < 0) {
return NULL;
goto finally;
}

res = instr_sequence_to_instructions(INSTR_SEQUENCE(c));
PyObject *insts = instr_sequence_to_instructions(INSTR_SEQUENCE(c));
if (insts == NULL) {
goto finally;
}
res = PyTuple_Pack(2, insts, metadata);
Py_DECREF(insts);

finally:
Py_XDECREF(metadata);
compiler_exit_scope(c);
compiler_free(c);
_PyArena_Free(arena);
Expand Down Expand Up @@ -7375,10 +7415,14 @@ _PyCompile_Assemble(_PyCompile_CodeUnitMetadata *umd, PyObject *filename,
goto error;
}

PyObject *consts = umd->u_consts;
PyObject *consts = consts_dict_keys_inorder(umd->u_consts);
if (consts == NULL) {
goto error;
}
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co = _PyAssemble_MakeCodeObject(umd, const_cache,
consts, maxdepth, &optimized_instrs,
nlocalsplus, code_flags, filename);
Py_DECREF(consts);

error:
Py_DECREF(const_cache);
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