Module Printexc.Slot

Instructions: Use this module in your project

In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:

Add the following to your project's dependencies/CMakeLists.txt:

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DkSDKProject_DeclareAvailable(ocaml
    CONSTRAINT "= 4.14.0"
    FINDLIBS str unix runtime_events threads dynlink)
DkSDKProject_MakeAvailable(ocaml)

Add the Findlib::ocaml library to any desired targets in src/*/CMakeLists.txt:

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target_link_libraries(YourPackage_YourLibraryName
     # ... existing libraries, if any ...
     Findlib::ocaml)

Click your IDE's Build button

Not using DkSDK?

FIRST, do one or all of the following:

Run:
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```
opam install ocaml.4.14.0
```

Edit your dune-project and add:

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(package
  (name YourExistingPackage)
  (depends
  ; ... existing dependenices ...
  (ocaml (>= 4.14.0))))

Then run:

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dune build *.opam # if this fails, run: dune build

Edit your <package>.opam file and add:

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depends: [
  # ... existing dependencies ...
  "ocaml" {>= "4.14.0"}
]

Then run:

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opam install . --deps-only

FINALLY, add the library to any desired (library)and/or (executable) targets in your **/dune files:

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(library
  (name YourLibrary)
  ; ... existing library options ...
  (libraries
    ; ... existing libraries ...
    ))

(executable
  (name YourExecutable)
  ; ... existing executable options ...
  (libraries
    ; ... existing libraries ...
    ))

typet`` =backtrace_slot

valis_raise :t -> bool

is_raise slot is true when slot refers to a raising point in the code, and false when it comes from a simple function call.

since 4.02

valis_inline :t -> bool

is_inline slot is true when slot refers to a call that got inlined by the compiler, and false when it comes from any other context.

since 4.04.0

vallocation :t -> location option

location slot returns the location information of the slot, if available, and None otherwise.

Some possible reasons for failing to return a location are as follow:

the slot corresponds to a compiler-inserted raise
the slot corresponds to a part of the program that has not been compiled with debug information (-g)
since 4.02

valname :t -> ``string option

name slot returns the name of the function or definition enclosing the location referred to by the slot.

name slot returns None if the name is unavailable, which may happen for the same reasons as location returning None.

since 4.11

valformat : ``int-> t -> ``string option

format pos slot returns the string representation of slot as raw_backtrace_to_string would format it, assuming it is the pos-th element of the backtrace: the 0-th element is pretty-printed differently than the others.

Whole-backtrace printing functions also skip some uninformative slots; in that case, format pos slot returns None.

since 4.02

More from the DkSDK Book

1. DkSDK
1. 1. Package capnp
  1. 1. Module Capnp
    1. 1. Module Capnp.Array
      1. Module Capnp.BytesStorage
      1. Module Capnp.Codecs
      1. Module Capnp.Message
      1. Module Capnp.MessageSig
      1. Module type MessageSig.MESSAGE
        Module type MessageSig.S
        Module S.ListStorage
        Module S.Message
        Module S.Object
        Module S.Segment
        Module S.Slice
        Module S.StructStorage
        Module type MessageSig.SEGMENT
        Module type MessageSig.SLICE
      1. Module Capnp.RPC
      1. Module type RPC.S
        Module S.Capability
        Module S.ListStorage
        Module S.Message
        Module S.Object
        Module S.Segment
        Module S.Service
        Module S.Slice
        Module S.StructRef
        Module S.StructStorage
        Module S.Untyped
        Module M.ListStorage
        Module M.Message
        Module M.Object
        Module M.Segment
        Module M.Slice
        Module M.StructStorage
      1. Module Capnp.Runtime
    1. Module Capnp_unix
    1. 1. Module Capnp_unix.IO
  1. Package cmdliner
  1. 1. Module Cmdliner
    1. 1. Module Cmdliner.Arg
      1. Module Cmdliner.Cmd
      1. Module Cmdliner.Manpage
      1. Module Cmdliner.Term
    1. Module Cmdliner_arg
    1. Module Cmdliner_base
    1. Module Cmdliner_cline
    1. Module Cmdliner_cmd
    1. Module Cmdliner_docgen
    1. Module Cmdliner_eval
    1. Module Cmdliner_info
    1. 1. Module Cmdliner_info.Arg
      1. Module Cmdliner_info.Cmd
      1. Module Cmdliner_info.Env
      1. Module Cmdliner_info.Eval
      1. Module Cmdliner_info.Exit
    1. Module Cmdliner_manpage
    1. Module Cmdliner_msg
    1. Module Cmdliner_term
    1. Module Cmdliner_term_deprecated
    1. Module Cmdliner_trie
  1. Package fmt
  1. 1. Module Fmt
    1. 1. Module Fmt.Dump
    1. Module Fmt_cli
    1. Module Fmt_tty
  1. Package logs
  1. 1. Module Logs
    1. Module Logs_cli
    1. Module Logs_fmt
    1. Module Logs_lwt
    1. Module Logs_threaded
  1. Package lwt
  1. 1. Module Lwt
    1. 1. Module Lwt.Infix
      1. Module Lwt.Let_syntax
      1. Module Lwt.Syntax
    1. Module Lwt_bytes
    1. Module Lwt_condition
    1. Module Lwt_config
    1. Module Lwt_engine
    1. 1. Module Lwt_engine.Ev_backend
      1. Module Lwt_engine.Versioned
    1. Module Lwt_features
    1. Module Lwt_fmt
    1. Module Lwt_gc
    1. Module Lwt_io
    1. 1. Module Lwt_io.BE
      1. Module Lwt_io.LE
      1. Module Lwt_io.Versioned
    1. Module Lwt_list
    1. Module Lwt_main
    1. 1. Module Lwt_main.Enter_iter_hooks
      1. Module Lwt_main.Exit_hooks
      1. Module Lwt_main.Leave_iter_hooks
    1. Module Lwt_mutex
    1. Module Lwt_mvar
    1. Module Lwt_pool
    1. Module Lwt_pqueue
    1. 1. Module Lwt_pqueue.Make
    1. Module Lwt_preemptive
    1. Module Lwt_process
    1. Module Lwt_result
    1. 1. Module Lwt_result.Infix
      1. Module Lwt_result.Let_syntax
      1. Module Lwt_result.Syntax
    1. Module Lwt_seq
    1. Module Lwt_sequence
    1. Module Lwt_stream
    1. Module Lwt_switch
    1. Module Lwt_sys
    1. Module Lwt_throttle
    1. 1. Module Lwt_throttle.Make
    1. Module Lwt_timeout
    1. Module Lwt_unix
    1. 1. Module Lwt_unix.IO_vectors
      1. Module Lwt_unix.LargeFile
      1. Module Lwt_unix.Versioned
  1. Package mtime
  1. 1. Module Mtime
    1. 1. Module Mtime.Span
    1. Module Mtime_clock
  1. Package ocaml
  1. 1. Module Bigarray
    1. Module Condition
    1. Module Dynlink
    1. Module Event
    1. Module Mutex
    1. Module Profiling
    1. Module Semaphore
    1. 1. Module Semaphore.Binary
      1. Module Semaphore.Counting
    1. Module Stdlib
    1. 1. Module Stdlib.Arg
      1. Module Stdlib.Array
      1. Module Stdlib.ArrayLabels
      1. Module Stdlib.Atomic
      1. Module Stdlib.Bigarray
      1. Module Stdlib.Bool
      1. Module Stdlib.Buffer
      1. Module Stdlib.Bytes
      1. Module Stdlib.BytesLabels
      1. Module Stdlib.Callback
      1. Module Stdlib.Char
      1. Module Stdlib.Complex
      1. Module Stdlib.Digest
      1. Module Stdlib.Either
      1. Module Stdlib.Ephemeron
      1. Module Stdlib.Filename
      1. Module Stdlib.Float
      1. Module Stdlib.Format
      1. Module Stdlib.Fun
      1. Module Stdlib.Gc
      1. Module Stdlib.Genlex
      1. Module Stdlib.Hashtbl
      1. Module type Hashtbl.HashedType
        Module type Hashtbl.S
        Module type Hashtbl.SeededHashedType
        Module type Hashtbl.SeededS
      1. Module Stdlib.In_channel
      1. Module Stdlib.Int
      1. Module Stdlib.Int32
      1. Module Stdlib.Int64
      1. Module Stdlib.LargeFile
      1. Module Stdlib.Lazy
      1. Module Stdlib.Lexing
      1. Module Stdlib.List
      1. Module Stdlib.ListLabels
      1. Module Stdlib.Map
      1. Module type Map.OrderedType
        Module type Map.S
      1. Module Stdlib.Marshal
      1. Module Stdlib.MoreLabels
      1. Module Stdlib.Nativeint
      1. Module Stdlib.Obj
      1. Module Stdlib.Oo
      1. Module Stdlib.Option
      1. Module Stdlib.Out_channel
      1. Module Stdlib.Parsing
      1. Module Stdlib.Pervasives
      1. Module Stdlib.Printexc
      1. ...
        Module Printexc.Slot
        ...
      1. Module Stdlib.Printf
      1. Module Stdlib.Queue
      1. Module Stdlib.Random
      1. Module Stdlib.Result
      1. Module Stdlib.Scanf
      1. Module Stdlib.Seq
      1. Module Stdlib.Set
      1. Module type Set.OrderedType
        Module type Set.S
      1. Module Stdlib.Stack
      1. Module Stdlib.StdLabels
      1. Module Stdlib.Stream
      1. Module Stdlib.String
      1. Module Stdlib.StringLabels
      1. Module Stdlib.Sys
      1. Module Stdlib.Uchar
      1. Module Stdlib.Unit
      1. Module Stdlib.Weak
      1. Module type Weak.S
    1. Module Str
    1. Module Thread
    1. Module ThreadUnix
    1. Module Topdirs
    1. Module Unix
    1. 1. Module Unix.LargeFile
    1. Module UnixLabels
    1. 1. Module UnixLabels.LargeFile
      1. Module EndianBigstring
      1. Module type EndianBigstring.EndianBigstringSig
      1. Module EndianBytes
      1. Module type EndianBytes.EndianBytesSig
      1. Module EndianString
      1. Module type EndianString.EndianStringSig
  1. Package
  1. Package result
  1. 1. Module Result
  1. Package stdint
  1. 1. Module Stdint
    1. 1. Module Stdint.Int128
      1. Module Stdint.Int16
      1. Module Stdint.Int24
      1. Module Stdint.Int32
      1. Module Stdint.Int40
      1. Module Stdint.Int48
      1. Module Stdint.Int56
      1. Module Stdint.Int64
      1. Module Stdint.Int8
      1. Module Stdint.Uint128
      1. Module Stdint.Uint16
      1. Module Stdint.Uint24
      1. Module Stdint.Uint32
      1. Module Stdint.Uint40
      1. Module Stdint.Uint48
      1. Module Stdint.Uint56
      1. Module Stdint.Uint64
      1. Module Stdint.Uint8