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