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-rw-r--r--scripts/qapi.py64
1 files changed, 52 insertions, 12 deletions
diff --git a/scripts/qapi.py b/scripts/qapi.py
index 07a7a82f87..ec806aabeb 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -11,6 +11,7 @@
# This work is licensed under the terms of the GNU GPL, version 2.
# See the COPYING file in the top-level directory.
+import re
from ordereddict import OrderedDict
import os
import sys
@@ -36,9 +37,17 @@ builtin_type_qtypes = {
'uint64': 'QTYPE_QINT',
}
+def error_path(parent):
+ res = ""
+ while parent:
+ res = ("In file included from %s:%d:\n" % (parent['file'],
+ parent['line'])) + res
+ parent = parent['parent']
+ return res
+
class QAPISchemaError(Exception):
def __init__(self, schema, msg):
- self.fp = schema.fp
+ self.input_file = schema.input_file
self.msg = msg
self.col = 1
self.line = schema.line
@@ -47,23 +56,31 @@ class QAPISchemaError(Exception):
self.col = (self.col + 7) % 8 + 1
else:
self.col += 1
+ self.info = schema.parent_info
def __str__(self):
- return "%s:%s:%s: %s" % (self.fp.name, self.line, self.col, self.msg)
+ return error_path(self.info) + \
+ "%s:%d:%d: %s" % (self.input_file, self.line, self.col, self.msg)
class QAPIExprError(Exception):
def __init__(self, expr_info, msg):
- self.fp = expr_info['fp']
- self.line = expr_info['line']
+ self.info = expr_info
self.msg = msg
def __str__(self):
- return "%s:%s: %s" % (self.fp.name, self.line, self.msg)
+ return error_path(self.info['parent']) + \
+ "%s:%d: %s" % (self.info['file'], self.info['line'], self.msg)
class QAPISchema:
- def __init__(self, fp):
- self.fp = fp
+ def __init__(self, fp, input_relname=None, include_hist=[], parent_info=None):
+ input_fname = os.path.abspath(fp.name)
+ if input_relname is None:
+ input_relname = fp.name
+ self.input_dir = os.path.dirname(input_fname)
+ self.input_file = input_relname
+ self.include_hist = include_hist + [(input_relname, input_fname)]
+ self.parent_info = parent_info
self.src = fp.read()
if self.src == '' or self.src[-1] != '\n':
self.src += '\n'
@@ -74,10 +91,33 @@ class QAPISchema:
self.accept()
while self.tok != None:
- expr_info = {'fp': fp, 'line': self.line}
- expr_elem = {'expr': self.get_expr(False),
- 'info': expr_info}
- self.exprs.append(expr_elem)
+ expr_info = {'file': input_relname, 'line': self.line, 'parent': self.parent_info}
+ expr = self.get_expr(False)
+ if isinstance(expr, dict) and "include" in expr:
+ if len(expr) != 1:
+ raise QAPIExprError(expr_info, "Invalid 'include' directive")
+ include = expr["include"]
+ if not isinstance(include, str):
+ raise QAPIExprError(expr_info,
+ 'Expected a file name (string), got: %s'
+ % include)
+ include_path = os.path.join(self.input_dir, include)
+ if any(include_path == elem[1]
+ for elem in self.include_hist):
+ raise QAPIExprError(expr_info, "Inclusion loop for %s"
+ % include)
+ try:
+ fobj = open(include_path, 'r')
+ except IOError as e:
+ raise QAPIExprError(expr_info,
+ '%s: %s' % (e.strerror, include))
+ exprs_include = QAPISchema(fobj, include,
+ self.include_hist, expr_info)
+ self.exprs.extend(exprs_include.exprs)
+ else:
+ expr_elem = {'expr': expr,
+ 'info': expr_info}
+ self.exprs.append(expr_elem)
def accept(self):
while True:
@@ -267,7 +307,7 @@ def check_exprs(schema):
def parse_schema(input_file):
try:
schema = QAPISchema(open(input_file, "r"))
- except QAPISchemaError, e:
+ except (QAPISchemaError, QAPIExprError), e:
print >>sys.stderr, e
exit(1)