1 : // -*- mode: c++ -*-
2 :
3 : // Copyright (c) 2010 Google Inc.
4 : // All rights reserved.
5 : //
6 : // Redistribution and use in source and binary forms, with or without
7 : // modification, are permitted provided that the following conditions are
8 : // met:
9 : //
10 : // * Redistributions of source code must retain the above copyright
11 : // notice, this list of conditions and the following disclaimer.
12 : // * Redistributions in binary form must reproduce the above
13 : // copyright notice, this list of conditions and the following disclaimer
14 : // in the documentation and/or other materials provided with the
15 : // distribution.
16 : // * Neither the name of Google Inc. nor the names of its
17 : // contributors may be used to endorse or promote products derived from
18 : // this software without specific prior written permission.
19 : //
20 : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 : // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 : // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 :
32 : // Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
33 :
34 : // language.h: Define google_breakpad::Language. Instances of
35 : // subclasses of this class provide language-appropriate operations
36 : // for the Breakpad symbol dumper.
37 :
38 : #ifndef COMMON_LINUX_LANGUAGE_H__
39 : #define COMMON_LINUX_LANGUAGE_H__
40 :
41 : #include <string>
42 :
43 : namespace google_breakpad {
44 :
45 : using std::string;
46 :
47 : // An abstract base class for language-specific operations. We choose
48 : // an instance of a subclass of this when we find the CU's language.
49 : // This class's definitions are appropriate for CUs with no specified
50 : // language.
51 372 : class Language {
52 : public:
53 : // Return true if this language has functions to which we can assign
54 : // line numbers. (Debugging info for assembly language, for example,
55 : // can have source location information, but does not have functions
56 : // recorded using DW_TAG_subprogram DIEs.)
57 4723 : virtual bool HasFunctions() const { return true; }
58 :
59 : // Construct a fully-qualified, language-appropriate form of NAME,
60 : // given that PARENT_NAME is the name of the construct enclosing
61 : // NAME. If PARENT_NAME is the empty string, then NAME is a
62 : // top-level name.
63 : //
64 : // This API sort of assumes that a fully-qualified name is always
65 : // some simple textual composition of the unqualified name and its
66 : // parent's name, and that we don't need to know anything else about
67 : // the parent or the child (say, their DIEs' tags) to do the job.
68 : // This is true for the languages we support at the moment, and
69 : // keeps things concrete. Perhaps a more refined operation would
70 : // take into account the parent and child DIE types, allow languages
71 : // to use their own data type for complex parent names, etc. But if
72 : // C++ doesn't need all that, who would?
73 : virtual string MakeQualifiedName (const string &parent_name,
74 : const string &name) const = 0;
75 :
76 : // Instances for specific languages.
77 : static const Language * const CPlusPlus,
78 : * const Java,
79 : * const Assembler;
80 : };
81 :
82 : } // namespace google_breakpad
83 :
84 : #endif // COMMON_LINUX_LANGUAGE_H__
|