teak-llvm/lldb/source/Breakpoint/BreakpointID.cpp
Raphael Isemann 808142876c [lldb][NFC] Fix all formatting errors in .cpp file headers
Summary:
A *.cpp file header in LLDB (and in LLDB) should like this:
```
//===-- TestUtilities.cpp -------------------------------------------------===//
```
However in LLDB most of our source files have arbitrary changes to this format and
these changes are spreading through LLDB as folks usually just use the existing
source files as templates for their new files (most notably the unnecessary
editor language indicator `-*- C++ -*-` is spreading and in every review
someone is pointing out that this is wrong, resulting in people pointing out that this
is done in the same way in other files).

This patch removes most of these inconsistencies including the editor language indicators,
all the different missing/additional '-' characters, files that center the file name, missing
trailing `===//` (mostly caused by clang-format breaking the line).

Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D73258
2020-01-24 08:52:55 +01:00

122 lines
3.6 KiB
C++

//===-- BreakpointID.cpp --------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#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) {
for (auto spec : g_range_specifiers) {
if (spec == str)
return true;
}
return false;
}
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)
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);
}
llvm::Optional<BreakpointID>
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) {
error.Clear();
if (str.empty())
{
error.SetErrorStringWithFormat("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",
str.str().c_str());
return false;
}
// Cannot contain ., -, or space.
if (str.find_first_of(".- ") != llvm::StringRef::npos) {
error.SetErrorStringWithFormat("Breakpoint names cannot contain "
"'.' or '-': \"%s\"",
str.str().c_str());
return false;
}
return true;
}