1#!/usr/bin/env python
2# Copyright 2015 The PDFium Authors. All rights reserved.
3# Use of this source code is governed by a BSD-style license that can be
4# found in the LICENSE file.
5
6import os
7
8import common
9
10class Suppressor:
11  def __init__(self, finder, feature_string):
12    feature_vector = feature_string.strip().split(",")
13    self.has_v8 = "V8" in feature_vector
14    self.has_xfa = "XFA" in feature_vector
15    self.is_asan = "ASAN" in feature_vector
16    v8_option = "v8" if self.has_v8 else "nov8"
17    xfa_option = "xfa" if self.has_xfa else "noxfa"
18
19    with open(os.path.join(finder.TestingDir(), 'SUPPRESSIONS')) as f:
20      self.suppression_set = set(self._FilterSuppressions(
21        common.os_name(), v8_option, xfa_option, self._ExtractSuppressions(f)))
22
23  def _ExtractSuppressions(self, f):
24    return [y.split(' ') for y in
25            [x.split('#')[0].strip() for x in
26             f.readlines()] if y]
27
28  def _FilterSuppressions(self, os, js, xfa, unfiltered_list):
29    return [x[0] for x in unfiltered_list
30            if self._MatchSuppression(x, os, js, xfa)]
31
32  def _MatchSuppression(self, item, os, js, xfa):
33    os_column = item[1].split(",");
34    js_column = item[2].split(",");
35    xfa_column = item[3].split(",");
36    if self.is_asan and 'asan' in os_column:
37      return True
38    return (('*' in os_column or os in os_column) and
39            ('*' in js_column or js in js_column) and
40            ('*' in xfa_column or xfa in xfa_column))
41
42  def IsResultSuppressed(self, input_filename):
43    if input_filename in self.suppression_set:
44      print "%s result is suppressed" % input_filename
45      return True
46    return False
47
48  def IsExecutionSuppressed(self, input_filepath):
49    if "xfa_specific" in input_filepath and not self.has_xfa:
50      print "%s execution is suppressed" % input_filepath
51      return True
52    return False
53