30bb0c443e
The `DAPError` can be used to craft an error message that is displayed to a user (with showUser=true). Any request handler implementation using subclassing `RequestHandler<>` should be able to use this. I updated SourceRequestHandler to report DAPError's specifically.
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
//===-- SourceRequestHandler.cpp ------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "DAP.h"
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#include "Handler/RequestHandler.h"
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#include "LLDBUtils.h"
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#include "Protocol/ProtocolRequests.h"
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#include "Protocol/ProtocolTypes.h"
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#include "lldb/API/SBFrame.h"
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#include "lldb/API/SBInstructionList.h"
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#include "lldb/API/SBProcess.h"
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#include "lldb/API/SBStream.h"
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#include "lldb/API/SBTarget.h"
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#include "lldb/API/SBThread.h"
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#include "llvm/Support/Error.h"
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namespace lldb_dap {
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/// Source request; value of command field is 'source'. The request retrieves
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/// the source code for a given source reference.
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llvm::Expected<protocol::SourceResponseBody>
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SourceRequestHandler::Run(const protocol::SourceArguments &args) const {
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const auto source =
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args.source->sourceReference.value_or(args.sourceReference);
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if (!source)
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return llvm::make_error<DAPError>(
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"invalid arguments, expected source.sourceReference to be set");
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lldb::SBProcess process = dap.target.GetProcess();
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// Upper 32 bits is the thread index ID
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lldb::SBThread thread =
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process.GetThreadByIndexID(GetLLDBThreadIndexID(source));
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// Lower 32 bits is the frame index
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lldb::SBFrame frame = thread.GetFrameAtIndex(GetLLDBFrameID(source));
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if (!frame.IsValid())
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return llvm::make_error<DAPError>("source not found");
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lldb::SBInstructionList insts = frame.GetSymbol().GetInstructions(dap.target);
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lldb::SBStream stream;
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insts.GetDescription(stream);
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return protocol::SourceResponseBody{/*content=*/stream.GetData(),
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/*mimeType=*/"text/x-lldb.disassembly"};
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}
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} // namespace lldb_dap
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