| //===-- StepInRequestHandler.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 "DAP.h" |
| #include "EventHelper.h" |
| #include "Protocol/ProtocolRequests.h" |
| #include "Protocol/ProtocolTypes.h" |
| #include "RequestHandler.h" |
| |
| using namespace llvm; |
| using namespace lldb; |
| using namespace lldb_dap::protocol; |
| |
| namespace lldb_dap { |
| |
| // The request resumes the given thread to step into a function/method and |
| // allows all other threads to run freely by resuming them. If the debug adapter |
| // supports single thread execution (see capability |
| // `supportsSingleThreadExecutionRequests`), setting the `singleThread` argument |
| // to true prevents other suspended threads from resuming. If the request cannot |
| // step into a target, `stepIn` behaves like the `next` request. The debug |
| // adapter first sends the response and then a `stopped` event (with reason |
| // `step`) after the step has completed. If there are multiple function/method |
| // calls (or other targets) on the source line, the argument `targetId` can be |
| // used to control into which target the `stepIn` should occur. The list of |
| // possible targets for a given source line can be retrieved via the |
| // `stepInTargets` request. |
| Error StepInRequestHandler::Run(const StepInArguments &args) const { |
| SBThread thread = dap.GetLLDBThread(args.threadId); |
| if (!thread.IsValid()) |
| return make_error<DAPError>("invalid thread"); |
| |
| // Remember the thread ID that caused the resume so we can set the |
| // "threadCausedFocus" boolean value in the "stopped" events. |
| dap.focus_tid = thread.GetThreadID(); |
| |
| if (args.granularity == eSteppingGranularityInstruction) { |
| thread.StepInstruction(/*step_over=*/false); |
| return Error::success(); |
| } |
| |
| std::string step_in_target; |
| auto it = dap.step_in_targets.find(args.targetId.value_or(0)); |
| if (it != dap.step_in_targets.end()) |
| step_in_target = it->second; |
| |
| RunMode run_mode = args.singleThread ? eOnlyThisThread : eOnlyDuringStepping; |
| thread.StepInto(step_in_target.c_str(), run_mode); |
| return Error::success(); |
| } |
| |
| } // namespace lldb_dap |