//===-- AddressResolverFileLine.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 "lldb/Core/AddressResolverFileLine.h"

#include "lldb/Core/Address.h"

#include "lldb/Core/AddressRange.h"

#include "lldb/Symbol/CompileUnit.h"

#include "lldb/Symbol/LineEntry.h"

#include "lldb/Symbol/SymbolContext.h"

#include "lldb/Utility/ConstString.h"

#include "lldb/Utility/LLDBLog.h"

#include "lldb/Utility/Log.h"

#include "lldb/Utility/Stream.h"

#include "lldb/Utility/StreamString.h"

#include "lldb/lldb-enumerations.h"

#include "lldb/lldb-types.h"

#include <cinttypes>

#include <vector>

using namespace lldb;

using namespace lldb_private;

// AddressResolverFileLine:

AddressResolverFileLine::AddressResolverFileLine(

    SourceLocationSpec location_spec)

    : AddressResolver(), m_src_location_spec(location_spec) {}

AddressResolverFileLine::~AddressResolverFileLine() = default;

Searcher::CallbackReturn

AddressResolverFileLine::SearchCallback(SearchFilter &filter,

                                        SymbolContext &context, Address *addr) {

  SymbolContextList sc_list;

  CompileUnit *cu = context.comp_unit;

  Log *log = GetLog(LLDBLog::Breakpoints);

  // TODO: Handle SourceLocationSpec column information

  cu->ResolveSymbolContext(m_src_location_spec, eSymbolContextEverything,

                           sc_list);

  for (const SymbolContext &sc : sc_list) {

    Address line_start = sc.line_entry.range.GetBaseAddress();

    addr_t byte_size = sc.line_entry.range.GetByteSize();

    if (line_start.IsValid()) {

      AddressRange new_range(line_start, byte_size);

      m_address_ranges.push_back(new_range);

    } else {

      LLDB_LOGF(log,

                "error: Unable to resolve address at file address 0x%" PRIx64

                " for %s:%d\n",

                line_start.GetFileAddress(),

                m_src_location_spec.GetFileSpec().GetFilename().AsCString(

                    "<Unknown>"),

                m_src_location_spec.GetLine().value_or(0));

    }

  }

  return Searcher::eCallbackReturnContinue;

}

lldb::SearchDepth AddressResolverFileLine::GetDepth() {

  return lldb::eSearchDepthCompUnit;

}

void AddressResolverFileLine::GetDescription(Stream *s) {

  s->Printf(

      "File and line address - file: \"%s\" line: %u",

      m_src_location_spec.GetFileSpec().GetFilename().AsCString("<Unknown>"),

      m_src_location_spec.GetLine().value_or(0));

}