1 //===-- ClangExternalASTSourceCommon.cpp ------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "lldb/Symbol/ClangExternalASTSourceCommon.h"
11 #include "lldb/Core/Stream.h"
12 #include "lldb/Host/Mutex.h"
13 
14 using namespace lldb_private;
15 
16 uint64_t g_TotalSizeOfMetadata = 0;
17 
18 typedef llvm::DenseMap<clang::ExternalASTSource *, ClangExternalASTSourceCommon *> ASTSourceMap;
19 
20 static ASTSourceMap &GetSourceMap()
21 {
22     static ASTSourceMap s_source_map;
23     return s_source_map;
24 }
25 
26 ClangExternalASTSourceCommon *
27 ClangExternalASTSourceCommon::Lookup(clang::ExternalASTSource *source)
28 {
29     ASTSourceMap &source_map = GetSourceMap();
30 
31     ASTSourceMap::iterator iter = source_map.find(source);
32 
33     if (iter != source_map.end())
34     {
35         return iter->second;
36     }
37     else
38     {
39         return nullptr;
40     }
41 }
42 
43 ClangExternalASTSourceCommon::ClangExternalASTSourceCommon() : clang::ExternalASTSource()
44 {
45     g_TotalSizeOfMetadata += m_metadata.size();
46     GetSourceMap()[this] = this;
47 }
48 
49 ClangExternalASTSourceCommon::~ClangExternalASTSourceCommon()
50 {
51     GetSourceMap().erase(this);
52     g_TotalSizeOfMetadata -= m_metadata.size();
53 }
54 
55 ClangASTMetadata *
56 ClangExternalASTSourceCommon::GetMetadata (const void *object)
57 {
58     if (HasMetadata (object))
59         return &m_metadata[object];
60     else
61         return nullptr;
62 }
63 
64 void
65 ClangExternalASTSourceCommon::SetMetadata (const void *object, ClangASTMetadata &metadata)
66 {
67     uint64_t orig_size = m_metadata.size();
68     m_metadata[object] = metadata;
69     uint64_t new_size = m_metadata.size();
70     g_TotalSizeOfMetadata += (new_size - orig_size);
71 }
72 
73 bool
74 ClangExternalASTSourceCommon::HasMetadata (const void *object)
75 {
76     return m_metadata.find(object) != m_metadata.end();
77 }
78 
79 void
80 ClangASTMetadata::Dump (Stream *s)
81 {
82     lldb::user_id_t uid = GetUserID ();
83 
84     if (uid != LLDB_INVALID_UID)
85     {
86         s->Printf ("uid=0x%" PRIx64, uid);
87     }
88 
89     uint64_t isa_ptr = GetISAPtr ();
90     if (isa_ptr != 0)
91     {
92         s->Printf ("isa_ptr=0x%" PRIx64, isa_ptr);
93     }
94 
95     const char *obj_ptr_name = GetObjectPtrName();
96     if (obj_ptr_name)
97     {
98         s->Printf ("obj_ptr_name=\"%s\" ", obj_ptr_name);
99     }
100 
101     if (m_is_dynamic_cxx)
102     {
103         s->Printf ("is_dynamic_cxx=%i ", m_is_dynamic_cxx);
104     }
105     s->EOL();
106 }
107 
108