1 //===-- FileLineResolver.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/Core/FileLineResolver.h"
11 
12 // Project includes
13 #include "lldb/Core/FileSpecList.h"
14 #include "lldb/Symbol/CompileUnit.h"
15 #include "lldb/Symbol/LineTable.h"
16 #include "lldb/Utility/ConstString.h"
17 #include "lldb/Utility/Stream.h"
18 
19 #include <string>
20 
21 namespace lldb_private {
22 class Address;
23 }
24 
25 using namespace lldb;
26 using namespace lldb_private;
27 
28 //----------------------------------------------------------------------
29 // FileLineResolver:
30 //----------------------------------------------------------------------
31 FileLineResolver::FileLineResolver(const FileSpec &file_spec, uint32_t line_no,
32                                    bool check_inlines)
33     : Searcher(), m_file_spec(file_spec), m_line_number(line_no),
34       m_inlines(check_inlines) {}
35 
36 FileLineResolver::~FileLineResolver() {}
37 
38 Searcher::CallbackReturn
39 FileLineResolver::SearchCallback(SearchFilter &filter, SymbolContext &context,
40                                  Address *addr, bool containing) {
41   CompileUnit *cu = context.comp_unit;
42 
43   if (m_inlines ||
44       m_file_spec.Compare(*cu, m_file_spec, (bool)m_file_spec.GetDirectory())) {
45     uint32_t start_file_idx = 0;
46     uint32_t file_idx =
47         cu->GetSupportFiles().FindFileIndex(start_file_idx, m_file_spec, false);
48     if (file_idx != UINT32_MAX) {
49       LineTable *line_table = cu->GetLineTable();
50       if (line_table) {
51         if (m_line_number == 0) {
52           // Match all lines in a file...
53           const bool append = true;
54           while (file_idx != UINT32_MAX) {
55             line_table->FineLineEntriesForFileIndex(file_idx, append,
56                                                     m_sc_list);
57             // Get the next file index in case we have multiple file entries
58             // for the same file
59             file_idx = cu->GetSupportFiles().FindFileIndex(file_idx + 1,
60                                                            m_file_spec, false);
61           }
62         } else {
63           // Match a specific line in a file...
64         }
65       }
66     }
67   }
68   return Searcher::eCallbackReturnContinue;
69 }
70 
71 lldb::SearchDepth FileLineResolver::GetDepth() {
72   return lldb::eSearchDepthCompUnit;
73 }
74 
75 void FileLineResolver::GetDescription(Stream *s) {
76   s->Printf("File and line resolver for file: \"%s\" line: %u",
77             m_file_spec.GetPath().c_str(), m_line_number);
78 }
79 
80 void FileLineResolver::Clear() {
81   m_file_spec.Clear();
82   m_line_number = UINT32_MAX;
83   m_sc_list.Clear();
84   m_inlines = true;
85 }
86 
87 void FileLineResolver::Reset(const FileSpec &file_spec, uint32_t line,
88                              bool check_inlines) {
89   m_file_spec = file_spec;
90   m_line_number = line;
91   m_sc_list.Clear();
92   m_inlines = check_inlines;
93 }
94