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authorMarc-André Lureau <marcandre.lureau@redhat.com>2018-12-13 16:37:07 +0400
committerMarkus Armbruster <armbru@redhat.com>2018-12-13 19:20:11 +0100
commit7e80d48001c8ebc11358596f10ba48daddee05f5 (patch)
treeec198443b4f46451193e84ff26d346fa8b8d3406
parent563bd35d87f7bcab644381319d6247e8aee8a4f4 (diff)
qapi: improve reporting of unknown or missing keys
Report the set of missing or unknown keys. And give a hint about the accepted keys. The error message for multiple meta type members (visible in tests/qapi-schema/double-type.err) is not improved. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-6-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
-rw-r--r--scripts/qapi/common.py23
-rw-r--r--tests/qapi-schema/alternate-base.err1
-rw-r--r--tests/qapi-schema/double-type.err1
-rw-r--r--tests/qapi-schema/unknown-expr-key.err3
-rw-r--r--tests/qapi-schema/unknown-expr-key.json2
5 files changed, 20 insertions, 10 deletions
diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py
index 18f5872808..f205805751 100644
--- a/scripts/qapi/common.py
+++ b/scripts/qapi/common.py
@@ -874,14 +874,21 @@ def check_struct(expr, info):
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 pprint(elems):
+ return ', '.join("'" + e + "'" for e in sorted(elems))
+
+ missing = set(required) - set(keys)
+ if missing:
+ raise QAPISemError(info, "Key%s %s %s missing from %s"
+ % ('s' if len(missing) > 1 else '', pprint(missing),
+ 'are' if len(missing) > 1 else 'is', source))
+ allowed = set(required + optional)
+ unknown = set(keys) - allowed
+ if unknown:
+ raise QAPISemError(info, "Unknown key%s %s in %s\nValid keys are %s."
+ % ('s' if len(unknown) > 1 else '', pprint(unknown),
+ source, pprint(allowed)))
def check_keys(expr_elem, meta, required, optional=[]):
diff --git a/tests/qapi-schema/alternate-base.err b/tests/qapi-schema/alternate-base.err
index 30d8a34373..ebe05bc898 100644
--- a/tests/qapi-schema/alternate-base.err
+++ b/tests/qapi-schema/alternate-base.err
@@ -1 +1,2 @@
tests/qapi-schema/alternate-base.json:4: Unknown key 'base' in alternate 'Alt'
+Valid keys are 'alternate', 'data', 'if'.
diff --git a/tests/qapi-schema/double-type.err b/tests/qapi-schema/double-type.err
index f9613c6d6b..799193dba1 100644
--- a/tests/qapi-schema/double-type.err
+++ b/tests/qapi-schema/double-type.err
@@ -1 +1,2 @@
tests/qapi-schema/double-type.json:2: Unknown key 'command' in struct 'bar'
+Valid keys are 'base', 'data', 'if', 'struct'.
diff --git a/tests/qapi-schema/unknown-expr-key.err b/tests/qapi-schema/unknown-expr-key.err
index 12f5ed5b43..6ff8bb99c5 100644
--- a/tests/qapi-schema/unknown-expr-key.err
+++ b/tests/qapi-schema/unknown-expr-key.err
@@ -1 +1,2 @@
-tests/qapi-schema/unknown-expr-key.json:2: Unknown key 'bogus' in struct 'bar'
+tests/qapi-schema/unknown-expr-key.json:2: Unknown keys 'bogus', 'phony' in struct 'bar'
+Valid keys are 'base', 'data', 'if', 'struct'.
diff --git a/tests/qapi-schema/unknown-expr-key.json b/tests/qapi-schema/unknown-expr-key.json
index 3b2be00cc4..13292d75ed 100644
--- a/tests/qapi-schema/unknown-expr-key.json
+++ b/tests/qapi-schema/unknown-expr-key.json
@@ -1,2 +1,2 @@
# we reject an expression with unknown top-level keys
-{ 'struct': 'bar', 'data': { 'string': 'str'}, 'bogus': { } }
+{ 'struct': 'bar', 'data': { 'string': 'str'}, 'bogus': { }, 'phony': { } }