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bpo-45292: [PEP-654] add except* (GH-29581)

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Irit Katriel 2021-12-14 16:48:15 +00:00 • committed by GitHub
parent 850aefc2c6
commit d60457a667
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34 changed files with 7070 additions and 3332 deletions
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25
Python/ast.c
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@ -817,6 +817,31 @@ validate_stmt(struct validator *state, stmt_ty stmt)
(!asdl_seq_LEN(stmt->v.Try.orelse) ||
validate_stmts(state, stmt->v.Try.orelse));
break;
case TryStar_kind:
if (!validate_body(state, stmt->v.TryStar.body, "TryStar"))
return 0;
if (!asdl_seq_LEN(stmt->v.TryStar.handlers) &&
!asdl_seq_LEN(stmt->v.TryStar.finalbody)) {
PyErr_SetString(PyExc_ValueError, "TryStar has neither except handlers nor finalbody");
return 0;
}
if (!asdl_seq_LEN(stmt->v.TryStar.handlers) &&
asdl_seq_LEN(stmt->v.TryStar.orelse)) {
PyErr_SetString(PyExc_ValueError, "TryStar has orelse but no except handlers");
return 0;
}
for (i = 0; i < asdl_seq_LEN(stmt->v.TryStar.handlers); i++) {
excepthandler_ty handler = asdl_seq_GET(stmt->v.TryStar.handlers, i);
if ((handler->v.ExceptHandler.type &&
!validate_expr(state, handler->v.ExceptHandler.type, Load)) ||
!validate_body(state, handler->v.ExceptHandler.body, "ExceptHandler"))
return 0;
}
ret = (!asdl_seq_LEN(stmt->v.TryStar.finalbody) ||
validate_stmts(state, stmt->v.TryStar.finalbody)) &&
(!asdl_seq_LEN(stmt->v.TryStar.orelse) ||
validate_stmts(state, stmt->v.TryStar.orelse));
break;
case Assert_kind:
ret = validate_expr(state, stmt->v.Assert.test, Load) &&
(!stmt->v.Assert.msg || validate_expr(state, stmt->v.Assert.msg, Load));