blob: 9bd22898196e410117d737792cf474c4e148cedf [file] [log] [blame]
//===-- BreakpointID.cpp --------------------------------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include <cstdio>
#include "lldb/Breakpoint/Breakpoint.h"
#include "lldb/Breakpoint/BreakpointID.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/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;
static llvm::StringRef g_range_specifiers[] = {"-", "to", "To", "TO"};
// 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(llvm::StringRef str) {
return llvm::is_contained(g_range_specifiers, str);
bool BreakpointID::IsValidIDExpression(llvm::StringRef str) {
return BreakpointID::ParseCanonicalReference(str).hasValue();
llvm::ArrayRef<llvm::StringRef> BreakpointID::GetRangeSpecifiers() {
return llvm::makeArrayRef(g_range_specifiers);
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)
else if (m_location_id == LLDB_INVALID_BREAK_ID)
s->Printf("%i", m_break_id);
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) {
else if (loc_id == LLDB_INVALID_BREAK_ID)
s->Printf("%i", bp_id);
s->Printf("%i.%i", bp_id, loc_id);
BreakpointID::ParseCanonicalReference(llvm::StringRef input) {
break_id_t bp_id;
break_id_t loc_id = LLDB_INVALID_BREAK_ID;
if (input.empty())
return llvm::None;
// If it doesn't start with an integer, it's not valid.
if (input.consumeInteger(0, bp_id))
return llvm::None;
// period is optional, but if it exists, it must be followed by a number.
if (input.consume_front(".")) {
if (input.consumeInteger(0, loc_id))
return llvm::None;
// And at the end, the entire string must have been consumed.
if (!input.empty())
return llvm::None;
return BreakpointID(bp_id, loc_id);
bool BreakpointID::StringIsBreakpointName(llvm::StringRef str, Status &error) {
if (str.empty())
error.SetErrorString("Empty breakpoint names are not allowed");
return false;
// First character must be a letter or _
if (!isalpha(str[0]) && str[0] != '_')
error.SetErrorStringWithFormat("Breakpoint names must start with a "
"character or underscore: %s",
return false;
// Cannot contain ., -, or space.
if (str.find_first_of(".- ") != llvm::StringRef::npos) {
error.SetErrorStringWithFormat("Breakpoint names cannot contain "
"'.' or '-' or spaces: \"%s\"",
return false;
return true;