blob: 275c921c2edbeeacf09c402f6e944a2cd156727c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "haskellmanager.h"
#include "ghcmod.h"
#include <QDir>
#include <QFileInfo>
#include <unordered_map>
using namespace Utils;
namespace Haskell {
namespace Internal {
class HaskellManagerPrivate
{
public:
std::unordered_map<FileName, std::weak_ptr<AsyncGhcMod>> ghcModCache;
};
Q_GLOBAL_STATIC(HaskellManagerPrivate, m_d);
FileName HaskellManager::findProjectDirectory(const FileName &filePath)
{
if (filePath.isEmpty())
return FileName();
QDir directory(filePath.toFileInfo().isDir() ? filePath.toString()
: filePath.parentDir().toString());
directory.setNameFilters({"stack.yaml", "*.cabal"});
directory.setFilter(QDir::Files | QDir::Readable);
do {
if (!directory.entryList().isEmpty())
return FileName::fromString(directory.path());
} while (!directory.isRoot() && directory.cdUp());
return FileName();
}
std::shared_ptr<AsyncGhcMod> HaskellManager::ghcModForFile(const FileName &filePath)
{
const FileName projectPath = findProjectDirectory(filePath);
const auto cacheEntry = m_d->ghcModCache.find(projectPath);
if (cacheEntry != m_d->ghcModCache.cend()) {
if (cacheEntry->second.expired())
m_d->ghcModCache.erase(cacheEntry);
else
return cacheEntry->second.lock();
}
auto ghcmod = std::make_shared<AsyncGhcMod>(projectPath);
m_d->ghcModCache.insert(std::make_pair(projectPath, ghcmod));
return ghcmod;
}
} // namespace Internal
} // namespace Haskell
|
