package dap

  1. Overview
  2. Docs
Legend:
Library
Module
Module type
Parameter
Class
Class type

The Debug Adapter Protocol defines the protocol used between an editor or IDE and a debugger or runtime.

module type JSONABLE = sig ... end
module type EVENT = sig ... end
module type COMMAND = sig ... end
module Any : sig ... end
module Empty_dict : sig ... end
module Int_or_string : sig ... end
module Dict : sig ... end
module String_dict : sig ... end
module String_opt_dict : sig ... end
module Protocol_message : sig ... end
module Request : sig ... end
module Event : sig ... end
module Response : sig ... end
module Message : sig ... end
module Error_response : sig ... end
module Exception_breakpoints_filter : sig ... end
module Column_descriptor : sig ... end
module Checksum_algorithm : sig ... end
module Capabilities : sig ... end
module Module : sig ... end
module Modules_view_descriptor : sig ... end
module Thread : sig ... end
module Checksum : sig ... end
module Source : sig ... end
module Stack_frame : sig ... end
module Scope : sig ... end
module Variable_presentation_hint : sig ... end
module Variable : sig ... end
module Breakpoint_location : sig ... end
module Source_breakpoint : sig ... end
module Function_breakpoint : sig ... end
module Data_breakpoint_access_type : sig ... end
module Data_breakpoint : sig ... end
module Instruction_breakpoint : sig ... end
module Breakpoint : sig ... end
module Stepping_granularity : sig ... end
module Step_in_target : sig ... end
module Goto_target : sig ... end
module Completion_item_type : sig ... end
module Completion_item : sig ... end
module Value_format : sig ... end
module Stack_frame_format : sig ... end
module Exception_filter_options : sig ... end
module Exception_path_segment : sig ... end
module Exception_break_mode : sig ... end
module Exception_options : sig ... end
module Exception_details : sig ... end
module Disassembled_instruction : sig ... end
module Invalidated_areas : sig ... end
module Initialized_event : sig ... end
module Stopped_event : sig ... end
module Continued_event : sig ... end
module Exited_event : sig ... end
module Terminated_event : sig ... end
module Thread_event : sig ... end
module Output_event : sig ... end
module Breakpoint_event : sig ... end
module Module_event : sig ... end
module Loaded_source_event : sig ... end
module Process_event : sig ... end
module Capabilities_event : sig ... end
module Progress_start_event : sig ... end
module Progress_update_event : sig ... end
module Progress_end_event : sig ... end
module Invalidated_event : sig ... end
module Cancel_command : sig ... end

The 'cancel' request is used by the frontend in two situations:

module Run_in_terminal_command : sig ... end

This optional request is sent from the debug adapter to the client to run a command in a terminal. This is typically used to launch the debuggee in a terminal provided by the client. This request should only be called if the client has passed the value true for the 'supportsRunInTerminalRequest' capability of the 'initialize' request.

module Initialize_command : sig ... end

The 'initialize' request is sent as the first request from the client to the debug adapter in order to configure it with client capabilities and to retrieve capabilities from the debug adapter. Until the debug adapter has responded to with an 'initialize' response, the client must not send any additional requests or events to the debug adapter. In addition the debug adapter is not allowed to send any requests or events to the client until it has responded with an 'initialize' response. The 'initialize' request may only be sent once.

module Configuration_done_command : sig ... end

This optional request indicates that the client has finished initialization of the debug adapter. So it is the last request in the sequence of configuration requests (which was started by the 'initialized' event). Clients should only call this request if the capability 'supportsConfigurationDoneRequest' is true.

module Launch_command : sig ... end

This launch request is sent from the client to the debug adapter to start the debuggee with or without debugging (if 'noDebug' is true). Since launching is debugger/runtime specific, the arguments for this request are not part of this specification.

module Attach_command : sig ... end

The attach request is sent from the client to the debug adapter to attach to a debuggee that is already running. Since attaching is debugger/runtime specific, the arguments for this request are not part of this specification.

module Restart_command : sig ... end

Restarts a debug session. Clients should only call this request if the capability 'supportsRestartRequest' is true. If the capability is missing or has the value false, a typical client will emulate 'restart' by terminating the debug adapter first and then launching it anew.

module Disconnect_command : sig ... end

The 'disconnect' request is sent from the client to the debug adapter in order to stop debugging. It asks the debug adapter to disconnect from the debuggee and to terminate the debug adapter. If the debuggee has been started with the 'launch' request, the 'disconnect' request terminates the debuggee. If the 'attach' request was used to connect to the debuggee, 'disconnect' does not terminate the debuggee. This behavior can be controlled with the 'terminateDebuggee' argument (if supported by the debug adapter).

module Terminate_command : sig ... end

The 'terminate' request is sent from the client to the debug adapter in order to give the debuggee a chance for terminating itself. Clients should only call this request if the capability 'supportsTerminateRequest' is true.

module Breakpoint_locations_command : sig ... end

The 'breakpointLocations' request returns all possible locations for source breakpoints in a given range. Clients should only call this request if the capability 'supportsBreakpointLocationsRequest' is true.

module Set_breakpoints_command : sig ... end

Sets multiple breakpoints for a single source and clears all previous breakpoints in that source. To clear all breakpoint for a source, specify an empty array. When a breakpoint is hit, a 'stopped' event (with reason 'breakpoint') is generated.

Replaces all existing function breakpoints with new function breakpoints. To clear all function breakpoints, specify an empty array. When a function breakpoint is hit, a 'stopped' event (with reason 'function breakpoint') is generated. Clients should only call this request if the capability 'supportsFunctionBreakpoints' is true.

The request configures the debuggers response to thrown exceptions. If an exception is configured to break, a 'stopped' event is fired (with reason 'exception'). Clients should only call this request if the capability 'exceptionBreakpointFilters' returns one or more filters.

module Data_breakpoint_info_command : sig ... end

Obtains information on a possible data breakpoint that could be set on an expression or variable. Clients should only call this request if the capability 'supportsDataBreakpoints' is true.

module Set_data_breakpoints_command : sig ... end

Replaces all existing data breakpoints with new data breakpoints. To clear all data breakpoints, specify an empty array. When a data breakpoint is hit, a 'stopped' event (with reason 'data breakpoint') is generated. Clients should only call this request if the capability 'supportsDataBreakpoints' is true.

Replaces all existing instruction breakpoints. Typically, instruction breakpoints would be set from a diassembly window. To clear all instruction breakpoints, specify an empty array. When an instruction breakpoint is hit, a 'stopped' event (with reason 'instruction breakpoint') is generated. Clients should only call this request if the capability 'supportsInstructionBreakpoints' is true.

module Continue_command : sig ... end

The request starts the debuggee to run again.

module Next_command : sig ... end

The request starts the debuggee to run again for one step. The debug adapter first sends the response and then a 'stopped' event (with reason 'step') after the step has completed.

module Step_in_command : sig ... end

The request starts the debuggee to step into a function/method if possible. If it cannot step into a target, 'stepIn' behaves like 'next'. 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 optional 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.

module Step_out_command : sig ... end

The request starts the debuggee to run again for one step. The debug adapter first sends the response and then a 'stopped' event (with reason 'step') after the step has completed.

module Step_back_command : sig ... end

The request starts the debuggee to run one step backwards. The debug adapter first sends the response and then a 'stopped' event (with reason 'step') after the step has completed. Clients should only call this request if the capability 'supportsStepBack' is true.

module Reverse_continue_command : sig ... end

The request starts the debuggee to run backward. Clients should only call this request if the capability 'supportsStepBack' is true.

module Restart_frame_command : sig ... end

The request restarts execution of the specified stackframe. The debug adapter first sends the response and then a 'stopped' event (with reason 'restart') after the restart has completed. Clients should only call this request if the capability 'supportsRestartFrame' is true.

module Goto_command : sig ... end

The request sets the location where the debuggee will continue to run. This makes it possible to skip the execution of code or to executed code again. The code between the current location and the goto target is not executed but skipped. The debug adapter first sends the response and then a 'stopped' event with reason 'goto'. Clients should only call this request if the capability 'supportsGotoTargetsRequest' is true (because only then goto targets exist that can be passed as arguments).

module Pause_command : sig ... end

The request suspends the debuggee. The debug adapter first sends the response and then a 'stopped' event (with reason 'pause') after the thread has been paused successfully.

module Stack_trace_command : sig ... end

The request returns a stacktrace from the current execution state of a given thread. A client can request all stack frames by omitting the startFrame and levels arguments. For performance conscious clients and if the debug adapter's 'supportsDelayedStackTraceLoading' capability is true, stack frames can be retrieved in a piecemeal way with the startFrame and levels arguments. The response of the stackTrace request may contain a totalFrames property that hints at the total number of frames in the stack. If a client needs this total number upfront, it can issue a request for a single (first) frame and depending on the value of totalFrames decide how to proceed. In any case a client should be prepared to receive less frames than requested, which is an indication that the end of the stack has been reached.

module Scopes_command : sig ... end

The request returns the variable scopes for a given stackframe ID.

module Variables_command : sig ... end

Retrieves all child variables for the given variable reference. An optional filter can be used to limit the fetched children to either named or indexed children.

module Set_variable_command : sig ... end

Set the variable with the given name in the variable container to a new value. Clients should only call this request if the capability 'supportsSetVariable' is true.

module Source_command : sig ... end

The request retrieves the source code for a given source reference.

module Threads_command : sig ... end

The request retrieves a list of all threads.

module Terminate_threads_command : sig ... end

The request terminates the threads with the given ids. Clients should only call this request if the capability 'supportsTerminateThreadsRequest' is true.

module Modules_command : sig ... end

Modules can be retrieved from the debug adapter with this request which can either return all modules or a range of modules to support paging. Clients should only call this request if the capability 'supportsModulesRequest' is true.

module Loaded_sources_command : sig ... end

Retrieves the set of all sources currently loaded by the debugged process. Clients should only call this request if the capability 'supportsLoadedSourcesRequest' is true.

module Evaluate_command : sig ... end

Evaluates the given expression in the context of the top most stack frame. The expression has access to any variables and arguments that are in scope.

module Set_expression_command : sig ... end

Evaluates the given 'value' expression and assigns it to the 'expression' which must be a modifiable l-value. The expressions have access to any variables and arguments that are in scope of the specified frame. Clients should only call this request if the capability 'supportsSetExpression' is true.

module Step_in_targets_command : sig ... end

This request retrieves the possible stepIn targets for the specified stack frame. These targets can be used in the 'stepIn' request. The StepInTargets may only be called if the 'supportsStepInTargetsRequest' capability exists and is true. Clients should only call this request if the capability 'supportsStepInTargetsRequest' is true.

module Goto_targets_command : sig ... end

This request retrieves the possible goto targets for the specified source location. These targets can be used in the 'goto' request. Clients should only call this request if the capability 'supportsGotoTargetsRequest' is true.

module Completions_command : sig ... end

Returns a list of possible completions for a given caret position and text. Clients should only call this request if the capability 'supportsCompletionsRequest' is true.

module Exception_info_command : sig ... end

Retrieves the details of the exception that caused this event to be raised. Clients should only call this request if the capability 'supportsExceptionInfoRequest' is true.

module Read_memory_command : sig ... end

Reads bytes from memory at the provided location. Clients should only call this request if the capability 'supportsReadMemoryRequest' is true.

module Disassemble_command : sig ... end

Disassembles code stored at the provided location. Clients should only call this request if the capability 'supportsDisassembleRequest' is true.

OCaml

Innovation. Community. Security.