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qapi: Record 'include' directives in parse tree 

The parse tree is a list of expressions.  Except include expressions
currently get replaced by the included file's parse tree.

Instead of throwing away the include expression, keep it with the file
name expanded so you don't have to track the including file's
directory to make sense of it.

A future commit will put this include expression to use.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-16-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: fix check of expr after assignment]
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Markus Armbruster 2018-02-11 10:35:53 +01:00 committed by Eric Blake
parent 4257053083
commit 97f0249474
1 changed files with 16 additions and 4 deletions
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20
scripts/qapi/common.py
View File

@ -290,8 +290,11 @@ class QAPISchemaParser(object):
if not isinstance(include, str):
raise QAPISemError(info,
"Value of 'include' must be a string")
exprs_include = self._include(include, info,
os.path.dirname(self.fname),
incl_fname = os.path.join(os.path.dirname(self.fname),
include)
self.exprs.append({'expr': {'include': incl_fname},
'info': info})
exprs_include = self._include(include, info, incl_fname,
previously_included)
if exprs_include:
self.exprs.extend(exprs_include.exprs)
@ -326,8 +329,7 @@ class QAPISchemaParser(object):
"Documentation for '%s' is not followed by the definition"
% doc.symbol)
def _include(self, include, info, base_dir, previously_included):
incl_fname = os.path.join(base_dir, include)
def _include(self, include, info, incl_fname, previously_included):
incl_abs_fname = os.path.abspath(incl_fname)
# catch inclusion cycle
inf = info
@ -893,6 +895,9 @@ def check_exprs(exprs):
info = expr_elem['info']
doc = expr_elem.get('doc')
if 'include' in expr:
continue
if not doc and doc_required:
raise QAPISemError(info,
"Expression missing documentation comment")
@ -932,6 +937,9 @@ def check_exprs(exprs):
# Try again for hidden UnionKind enum
for expr_elem in exprs:
expr = expr_elem['expr']
if 'include' in expr:
continue
if 'union' in expr and not discriminator_find_enum_define(expr):
name = '%sKind' % expr['union']
elif 'alternate' in expr:
@ -947,6 +955,8 @@ def check_exprs(exprs):
info = expr_elem['info']
doc = expr_elem.get('doc')
if 'include' in expr:
continue
if 'enum' in expr:
check_enum(expr, info)
elif 'union' in expr:
@ -1667,6 +1677,8 @@ class QAPISchema(object):
self._def_command(expr, info, doc)
elif 'event' in expr:
self._def_event(expr, info, doc)
elif 'include' in expr:
pass
else:
assert False