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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/logging.h"
#include "chrome/browser/content_settings/content_settings_rule.h"
namespace content_settings {
Rule::Rule() {}
Rule::Rule(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
base::Value* value)
: primary_pattern(primary_pattern),
secondary_pattern(secondary_pattern),
value(value) {
DCHECK(value);
}
Rule::~Rule() {}
RuleIterator::~RuleIterator() {}
EmptyRuleIterator::~EmptyRuleIterator() {}
bool EmptyRuleIterator::HasNext() const {
return false;
}
Rule EmptyRuleIterator::Next() {
NOTREACHED();
return Rule();
}
ConcatenationIterator::ConcatenationIterator(
ScopedVector<RuleIterator>* iterators,
base::AutoLock* auto_lock)
: auto_lock_(auto_lock) {
iterators_.swap(*iterators);
ScopedVector<RuleIterator>::iterator it = iterators_.begin();
while (it != iterators_.end()) {
if (!(*it)->HasNext())
it = iterators_.erase(it);
else
++it;
}
}
ConcatenationIterator::~ConcatenationIterator() {}
bool ConcatenationIterator::HasNext() const {
return (!iterators_.empty());
}
Rule ConcatenationIterator::Next() {
ScopedVector<RuleIterator>::iterator current_iterator =
iterators_.begin();
DCHECK(current_iterator != iterators_.end());
DCHECK((*current_iterator)->HasNext());
const Rule& to_return = (*current_iterator)->Next();
if (!(*current_iterator)->HasNext())
iterators_.erase(current_iterator);
return to_return;
}
} // namespace content_settings
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