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gh-109118: Make comprehensions work within annotation scopes, but without inlining #118160

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Merged
JelleZijlstra merged 7 commits into from
Apr 28, 2024
Merged

gh-109118: Make comprehensions work within annotation scopes, but without inlining #118160

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ad56c5f
Desired behavior
JelleZijlstra Apr 18, 2024
5ade8d4
not correct
JelleZijlstra Apr 18, 2024
ba90c97
Revert "not correct"
JelleZijlstra Apr 26, 2024
28e78a6
Merge remote-tracking branch 'upstream/main' into lambdaanno
JelleZijlstra Apr 26, 2024
1a9b8ed
Do not inline them
JelleZijlstra Apr 26, 2024
79e9332
Rename "error_cases"
JelleZijlstra Apr 26, 2024
9e6ade7
Update Doc/whatsnew/3.13.rst
JelleZijlstra Apr 26, 2024
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not correct
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@JelleZijlstra
JelleZijlstra committed Apr 22, 2024
commit 5ade8d4836a23567eddff7251ae385c502f7d981
5 changes: 4 additions & 1 deletion Python/compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -371,6 +371,9 @@ static PyCodeObject *optimize_and_assemble(struct compiler *, int addNone);

#define CAPSULE_NAME "compile.c compiler unit"

static inline bool in_class_like_block(struct compiler *c) {
return c->u->u_ste->ste_type == ClassBlock || c->u->u_ste->ste_can_see_class_scope;
}

static int
compiler_setup(struct compiler *c, mod_ty mod, PyObject *filename,
Expand Down Expand Up @@ -5460,7 +5463,7 @@ push_inlined_comprehension_state(struct compiler *c, location loc,
PySTEntryObject *entry,
inlined_comprehension_state *state)
{
int in_class_block = (c->u->u_ste->ste_type == ClassBlock) && !c->u->u_in_inlined_comp;
int in_class_block = in_class_like_block(c) && !c->u->u_in_inlined_comp;
c->u->u_in_inlined_comp++;
// iterate over names bound in the comprehension and ensure we isolate
// them from the outer scope as needed
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3 changes: 2 additions & 1 deletion Python/symtable.c
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Expand Up @@ -810,7 +810,8 @@ inline_comprehension(PySTEntryObject *ste, PySTEntryObject *comp,
// free vars in comprehension that are locals in outer scope can
// now simply be locals, unless they are free in comp children,
// or if the outer scope is a class block
if (!is_free_in_any_child(comp, k) && ste->ste_type != ClassBlock) {
if (!is_free_in_any_child(comp, k) && ste->ste_type != ClassBlock
&& !ste->ste_can_see_class_scope) {
if (PySet_Discard(comp_free, k) < 0) {
return 0;
}
Expand Down