From 563bd35d87f7bcab644381319d6247e8aee8a4f4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Thu, 13 Dec 2018 16:37:06 +0400 Subject: [PATCH] qapi: factor out checking for keys MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce a new helper function to check if the given keys are known, and if mandatory keys are present. The function will be reused in other places in the following code changes. Signed-off-by: Marc-André Lureau Reviewed-by: Markus Armbruster Message-Id: <20181213123724.4866-5-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster --- scripts/qapi/common.py | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py index 1fa2f79990..18f5872808 100644 --- a/scripts/qapi/common.py +++ b/scripts/qapi/common.py @@ -873,6 +873,17 @@ def check_struct(expr, info): allow_metas=['struct']) +def check_known_keys(info, source, keys, required, optional): + for key in keys: + if key not in required and key not in optional: + raise QAPISemError(info, "Unknown key '%s' in %s" % (key, source)) + + for key in required: + if key not in keys: + raise QAPISemError(info, "Key '%s' is missing from %s" + % (key, source)) + + def check_keys(expr_elem, meta, required, optional=[]): expr = expr_elem['expr'] info = expr_elem['info'] @@ -880,10 +891,9 @@ def check_keys(expr_elem, meta, required, optional=[]): if not isinstance(name, str): raise QAPISemError(info, "'%s' key must have a string value" % meta) required = required + [meta] + source = "%s '%s'" % (meta, name) + check_known_keys(info, source, expr.keys(), required, optional) for (key, value) in expr.items(): - if key not in required and key not in optional: - raise QAPISemError(info, "Unknown key '%s' in %s '%s'" - % (key, meta, name)) if key in ['gen', 'success-response'] and value is not False: raise QAPISemError(info, "'%s' of %s '%s' should only use false value" @@ -895,10 +905,6 @@ def check_keys(expr_elem, meta, required, optional=[]): % (key, meta, name)) if key == 'if': check_if(expr, info) - for key in required: - if key not in expr: - raise QAPISemError(info, "Key '%s' is missing from %s '%s'" - % (key, meta, name)) def check_exprs(exprs):