llvm-project/lldb/source/Breakpoint/BreakpointID.cpp
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00

121 lines
3.8 KiB
C++

//===-- BreakpointID.cpp ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// C Includes
#include <stdio.h>
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Breakpoint/Breakpoint.h"
#include "lldb/Breakpoint/BreakpointID.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Stream.h"
using namespace lldb;
using namespace lldb_private;
BreakpointID::BreakpointID(break_id_t bp_id, break_id_t loc_id)
: m_break_id(bp_id), m_location_id(loc_id) {}
BreakpointID::~BreakpointID() = default;
const char *BreakpointID::g_range_specifiers[] = {"-", "to", "To", "TO",
nullptr};
// Tells whether or not STR is valid to use between two strings representing
// breakpoint IDs, to
// indicate a range of breakpoint IDs. This is broken out into a separate
// function so that we can
// easily change or add to the format for specifying ID ranges at a later date.
bool BreakpointID::IsRangeIdentifier(const char *str) {
int specifier_count = 0;
for (int i = 0; g_range_specifiers[i] != nullptr; ++i)
++specifier_count;
for (int i = 0; i < specifier_count; ++i) {
if (strcmp(g_range_specifiers[i], str) == 0)
return true;
}
return false;
}
bool BreakpointID::IsValidIDExpression(const char *str) {
break_id_t bp_id;
break_id_t loc_id;
BreakpointID::ParseCanonicalReference(str, &bp_id, &loc_id);
return (bp_id != LLDB_INVALID_BREAK_ID);
}
void BreakpointID::GetDescription(Stream *s, lldb::DescriptionLevel level) {
if (level == eDescriptionLevelVerbose)
s->Printf("%p BreakpointID:", static_cast<void *>(this));
if (m_break_id == LLDB_INVALID_BREAK_ID)
s->PutCString("<invalid>");
else if (m_location_id == LLDB_INVALID_BREAK_ID)
s->Printf("%i", m_break_id);
else
s->Printf("%i.%i", m_break_id, m_location_id);
}
void BreakpointID::GetCanonicalReference(Stream *s, break_id_t bp_id,
break_id_t loc_id) {
if (bp_id == LLDB_INVALID_BREAK_ID)
s->PutCString("<invalid>");
else if (loc_id == LLDB_INVALID_BREAK_ID)
s->Printf("%i", bp_id);
else
s->Printf("%i.%i", bp_id, loc_id);
}
bool BreakpointID::ParseCanonicalReference(const char *input,
break_id_t *break_id_ptr,
break_id_t *break_loc_id_ptr) {
*break_id_ptr = LLDB_INVALID_BREAK_ID;
*break_loc_id_ptr = LLDB_INVALID_BREAK_ID;
if (input == nullptr || *input == '\0')
return false;
const char *format = "%i%n.%i%n";
int chars_consumed_1 = 0;
int chars_consumed_2 = 0;
int n_items_parsed = ::sscanf(
input, format,
break_id_ptr, // %i parse the breakpoint ID
&chars_consumed_1, // %n gets the number of characters parsed so far
break_loc_id_ptr, // %i parse the breakpoint location ID
&chars_consumed_2); // %n gets the number of characters parsed so far
if ((n_items_parsed == 1 && input[chars_consumed_1] == '\0') ||
(n_items_parsed == 2 && input[chars_consumed_2] == '\0'))
return true;
// Badly formatted canonical reference.
*break_id_ptr = LLDB_INVALID_BREAK_ID;
*break_loc_id_ptr = LLDB_INVALID_BREAK_ID;
return false;
}
bool BreakpointID::StringIsBreakpointName(const char *name, Error &error) {
error.Clear();
if (name && (name[0] >= 'A' && name[0] <= 'z')) {
if (strcspn(name, ".- ") != strlen(name)) {
error.SetErrorStringWithFormat("invalid breakpoint name: \"%s\"", name);
}
return true;
} else
return false;
}