LLDB mainline
OptionValueFileColonLine.cpp
Go to the documentation of this file.
1//===-- OptionValueFileColonLine.cpp---------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
10
14#include "lldb/Utility/Args.h"
15#include "lldb/Utility/State.h"
16
17using namespace lldb;
18using namespace lldb_private;
19
20// This is an OptionValue for parsing file:line:column specifications.
21// I set the completer to "source file" which isn't quite right, but we can
22// only usefully complete in the file name part of it so it should be good
23// enough.
25
27
28{
30}
31
33 Stream &strm, uint32_t dump_mask) {
34 if (dump_mask & eDumpOptionType)
35 strm.Printf("(%s)", GetTypeAsCString());
36 if (dump_mask & eDumpOptionValue) {
37 if (dump_mask & eDumpOptionType)
38 strm.PutCString(" = ");
39
40 if (m_file_spec)
41 strm << '"' << m_file_spec.GetPath().c_str() << '"';
43 strm.Printf(":%d", m_line_number);
45 strm.Printf(":%d", m_column_number);
46 }
47}
48
52 switch (op) {
54 Clear();
56 break;
57
60 if (value.size() > 0) {
61 // This is in the form filename:linenumber:column.
62 // I wish we could use filename:linenumber.column, that would make the
63 // parsing unambiguous and so much easier...
64 // But clang & gcc both print the output with two : so we're stuck with
65 // the two colons. Practically, the only actual ambiguity this introduces
66 // is with files like "foo:10", which doesn't seem terribly likely.
67
68 // Providing the column is optional, so the input value might have one or
69 // two colons. First pick off the last colon separated piece.
70 // It has to be there, since the line number is required:
71 llvm::StringRef last_piece;
72 llvm::StringRef left_of_last_piece;
73
74 std::tie(left_of_last_piece, last_piece) = value.rsplit(':');
75 if (last_piece.empty()) {
76 error.SetErrorStringWithFormat("Line specifier must include file and "
77 "line: '%s'",
78 value.str().c_str());
79 return error;
80 }
81
82 // Now see if there's another colon and if so pull out the middle piece:
83 // Then check whether the middle piece is an integer. If it is, then it
84 // was the line number, and if it isn't we're going to assume that there
85 // was a colon in the filename (see note at the beginning of the function)
86 // and ignore it.
87 llvm::StringRef file_name;
88 llvm::StringRef middle_piece;
89
90 std::tie(file_name, middle_piece) = left_of_last_piece.rsplit(':');
91 if (middle_piece.empty() ||
92 !llvm::to_integer(middle_piece, m_line_number)) {
93 // The middle piece was empty or not an integer, so there were only two
94 // legit pieces; our original division was right. Reassign the file
95 // name and pull out the line number:
96 file_name = left_of_last_piece;
97 if (!llvm::to_integer(last_piece, m_line_number)) {
98 error.SetErrorStringWithFormat("Bad line number value '%s' in: '%s'",
99 last_piece.str().c_str(),
100 value.str().c_str());
101 return error;
102 }
103 } else {
104 // There were three pieces, and we've got the line number. So now
105 // we just need to check the column number which was the last peice.
106 if (!llvm::to_integer(last_piece, m_column_number)) {
107 error.SetErrorStringWithFormat("Bad column value '%s' in: '%s'",
108 last_piece.str().c_str(),
109 value.str().c_str());
110 return error;
111 }
112 }
113
114 m_value_was_set = true;
115 m_file_spec.SetFile(file_name, FileSpec::Style::native);
117 } else {
118 error.SetErrorString("invalid value string");
119 }
120 break;
121
128 break;
129 }
130 return error;
131}
132
134 CompletionRequest &request) {
136 interpreter, m_completion_mask, request, nullptr);
137}
static llvm::raw_ostream & error(Stream &strm)
static bool InvokeCommonCompletionCallbacks(CommandInterpreter &interpreter, uint32_t completion_mask, lldb_private::CompletionRequest &request, SearchFilter *searcher)
"lldb/Utility/ArgCompletionRequest.h"
"lldb/Target/ExecutionContext.h" A class that contains an execution context.
void SetFile(llvm::StringRef path, Style style)
Change the file specified with a new path.
Definition: FileSpec.cpp:174
size_t GetPath(char *path, size_t max_path_length, bool denormalize=true) const
Extract the full path to the file.
Definition: FileSpec.cpp:367
void DumpValue(const ExecutionContext *exe_ctx, Stream &strm, uint32_t dump_mask) override
void AutoComplete(CommandInterpreter &interpreter, CompletionRequest &request) override
Status SetValueFromString(llvm::StringRef value, VarSetOperationType op=eVarSetOperationAssign) override
virtual Status SetValueFromString(llvm::StringRef value, VarSetOperationType op=eVarSetOperationAssign)
virtual const char * GetTypeAsCString() const
Definition: OptionValue.h:87
An error handling class.
Definition: Status.h:44
A stream class that can stream formatted output to a file.
Definition: Stream.h:28
size_t Printf(const char *format,...) __attribute__((format(printf
Output printf formatted output to the stream.
Definition: Stream.cpp:134
size_t PutCString(llvm::StringRef cstr)
Output a C string to the stream.
Definition: Stream.cpp:65
#define LLDB_INVALID_LINE_NUMBER
Definition: lldb-defines.h:94
#define LLDB_INVALID_COLUMN_NUMBER
Definition: lldb-defines.h:95
A class that represents a running process on the host machine.
VarSetOperationType
Settable state variable types.
Definition: SBAddress.h:15