Re: [PATCH v2 3/7] qapi/expr: Use TopLevelExpr where appropriate

[Markus Armbruster <armbru@redhat.com>]

John Snow <jsnow@redhat.com> writes:

> Remove most usages of _JSONObject with a more semantically meaningful
> alias. Note that this is only a semantic alias; the distinction is not
> enforced by the type system. This is merely a benefit for the human:
> instead of check_xyz functions operating on a representation of some
> "JSON Object", we can document them as operating on QAPI's Top Level
> Expressions directly; it's more semantically meaningful.
>
> Signed-off-by: John Snow <jsnow@redhat.com>
> ---
>  scripts/qapi/expr.py | 30 +++++++++++++++---------------
>  1 file changed, 15 insertions(+), 15 deletions(-)
>
> diff --git a/scripts/qapi/expr.py b/scripts/qapi/expr.py
> index 293f830fe9d..338c9ea4131 100644
> --- a/scripts/qapi/expr.py
> +++ b/scripts/qapi/expr.py
> @@ -44,7 +44,7 @@
>  
>  from .common import c_name
>  from .error import QAPISemError
> -from .parser import ParsedExpression
> +from .parser import ParsedExpression, TopLevelExpr
>  from .source import QAPISourceInfo
>  
>  
> @@ -229,11 +229,11 @@ def pprint(elems: Iterable[str]) -> str:
>                 pprint(unknown), pprint(allowed)))
>  
>  
> -def check_flags(expr: _JSONObject, info: QAPISourceInfo) -> None:
> +def check_flags(expr: TopLevelExpr, info: QAPISourceInfo) -> None:
>      """
>      Ensure flag members (if present) have valid values.
>  
> -    :param expr: The expression to validate.
> +    :param expr: The `TopLevelExpr` to validate.
>      :param info: QAPI schema source file information.
>  
>      :raise QAPISemError:
> @@ -447,9 +447,9 @@ def check_features(features: Optional[object],
>          check_if(feat, info, source)
>  
>  
> -def check_enum(expr: _JSONObject, info: QAPISourceInfo) -> None:
> +def check_enum(expr: TopLevelExpr, info: QAPISourceInfo) -> None:
>      """
> -    Normalize and validate this expression as an ``enum`` definition.
> +    Normalize and validate this `TopLevelExpr` as an ``enum`` definition.

Doc comment style question raised in review of PATCH 2 applies.

More of the same below.

>  
>      :param expr: The expression to validate.
>      :param info: QAPI schema source file information.

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