summaryrefslogtreecommitdiff
path: root/unoidl/source/sourcetreeprovider.cxx
blob: 0d88c8e0565a13c26863edf6f492d060d870cdc4 (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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <sal/config.h>
#include <sal/log.hxx>

#include <map>
#include <vector>

#include <osl/file.h>
#include <osl/file.hxx>
#include <rtl/character.hxx>
#include <rtl/ref.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>
#include <unoidl/unoidl.hxx>

#include "sourceprovider-scanner.hxx"
#include "sourcetreeprovider.hxx"

#if defined MACOSX
#include <dirent.h>
#include <osl/thread.h>
#endif

namespace unoidl { namespace detail {

namespace {

//TODO: Bad hack to work around osl::FileStatus::getFileName not determining the
// original spelling of a file name (not even with
// osl_FileStatus_Mask_Validate):
OUString getFileName(OUString const & uri, osl::FileStatus const & status) {
#if defined MACOSX
    sal_Int32 i = uri.lastIndexOf('/') + 1;
    OUString path;
    if (osl::FileBase::getSystemPathFromFileURL(uri.copy(0, i), path)
        != osl::FileBase::E_None)
    {
        SAL_WARN(
            "unoidl",
            "cannot getSystemPathFromFileURL(" << uri.copy(0, i) << ")");
        return status.getFileName();
    }
    OString dir(OUStringToOString(path, osl_getThreadTextEncoding()));
    OString name(OUStringToOString(uri.copy(i), osl_getThreadTextEncoding()));
    DIR * d = opendir(dir.getStr());
    if (d == nullptr) {
        SAL_WARN("unoidl", "cannot opendir(" << dir << ")");
        return status.getFileName();
    }
    for (;;) {
        dirent ent;
        dirent * p;
        int e = readdir_r(d, &ent, &p);
        if (e != 0) {
            SAL_WARN("unoidl", "cannot readdir_r");
            closedir(d);
            return status.getFileName();
        }
        if (p == nullptr) {
            SAL_WARN(
                "unoidl", "cannot find " << name << " via readdir of " << dir);
            closedir(d);
            return status.getFileName();
        }
        if (name.equalsIgnoreAsciiCase(p->d_name)) {
            closedir(d);
            return OUString(
                p->d_name, std::strlen(p->d_name), osl_getThreadTextEncoding());
        }
    }
#else
    (void) uri;
    return status.getFileName();
#endif
}

bool exists(OUString const & uri, bool directory) {
    osl::DirectoryItem item;
    osl::FileStatus status(
        osl_FileStatus_Mask_Type | osl_FileStatus_Mask_FileName);
    return osl::DirectoryItem::get(uri, item) == osl::FileBase::E_None
        && item.getFileStatus(status) == osl::FileBase::E_None
        && (status.getFileType() == osl::FileStatus::Directory) == directory
        && getFileName(uri, status) == uri.copy(uri.lastIndexOf('/') + 1);
}

class Cursor: public MapCursor {
public:
    Cursor() {}

private:
    virtual ~Cursor() throw () override {}

    virtual rtl::Reference<Entity> getNext(OUString *) override
    { return rtl::Reference<Entity>(); } //TODO
};

class SourceModuleEntity: public ModuleEntity {
public:
    SourceModuleEntity() {}

private:
    virtual ~SourceModuleEntity() throw () override {}

    virtual std::vector<OUString> getMemberNames() const override
    { return std::vector<OUString>(); } //TODO

    virtual rtl::Reference< MapCursor > createCursor() const override
    { return new Cursor; }
};

}

SourceTreeProvider::SourceTreeProvider(Manager & manager, OUString const & uri):
    manager_(manager), uri_(uri.endsWith("/") ? uri : uri + "/")
{}

rtl::Reference<MapCursor> SourceTreeProvider::createRootCursor() const {
    return new Cursor;
}

rtl::Reference<Entity> SourceTreeProvider::findEntity(OUString const & name)
    const
{
    std::map< OUString, rtl::Reference<Entity> >::iterator ci(
        cache_.find(name));
    if (ci != cache_.end()) {
        return ci->second;
    }
    // Match name against
    //   name ::= identifier ("." identifier)*
    //   identifier ::= upper-blocks | lower-block
    //   upper-blocks ::= upper ("_"? alnum)*
    //   lower-block :== lower alnum*
    //   alnum ::= digit | upper | lower
    //   digit ::= "0"--"9"
    //   upper ::= "A"--"Z"
    //   lower ::= "a"--"z"
    OUStringBuffer buf(name);
    sal_Int32 start = 0;
    sal_Int32 i = 0;
    for (; i != name.getLength(); ++i) {
        sal_Unicode c = name[i];
        if (c == '.') {
            assert(i == start || i != 0);
            if (i == start || name[i - 1] == '_') {
                throw FileFormatException( //TODO
                    "", "Illegal UNOIDL identifier \"" + name + "\"");
            }
            buf[i] = '/';
            start = i + 1;
        } else if (c == '_') {
            assert(i == start || i != 0);
            if (i == start || name[i - 1] == '_'
                || !rtl::isAsciiUpperCase(name[start]))
            {
                throw FileFormatException( //TODO
                    "", "Illegal UNOIDL identifier \"" + name + "\"");
            }
        } else if (rtl::isAsciiDigit(c)) {
            if (i == start) {
                throw FileFormatException( //TODO
                    "", "Illegal UNOIDL identifier \"" + name + "\"");
            }
        } else if (!rtl::isAsciiAlpha(c)) {
            throw FileFormatException( //TODO
                "", "Illegal UNOIDL identifier \"" + name + "\"");
        }
    }
    if (i == start) {
        throw FileFormatException( //TODO
            "", "Illegal UNOIDL identifier \"" + name + "\"");
    }
    OUString uri(uri_ + buf.makeStringAndClear());
    rtl::Reference<Entity> ent;
    // Prevent conflicts between foo/ and Foo.idl on case-preserving file
    // systems:
    if (exists(uri, true) && !exists(uri + ".idl", false)) {
        ent = new SourceModuleEntity;
    } else {
        uri += ".idl";
        SourceProviderScannerData data(&manager_);
        if (parse(uri, &data)) {
            std::map<OUString, SourceProviderEntity>::const_iterator j(
                data.entities.find(name));
            if (j != data.entities.end()) {
                ent = j->second.entity;
            }
            SAL_WARN_IF(
                !ent.is(), "unoidl",
                "<" << uri << "> does not define entity " << name);
        }
    }
    cache_.emplace(name, ent);
    return ent;
}

SourceTreeProvider::~SourceTreeProvider() throw () {}

} }

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */