package goblint

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package goblint
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Library function descriptor DSL.

See LibraryFunctions implementation for example usage.

Type parameters in this module can be ignored for usage. They are inferred automatically and used to ensure type-safety.

type ('k, 'l, 'r) arg_desc

Argument descriptor.

type ('k, 'r) args_desc =
  1. | [] : ('r, 'r) args_desc
    (*

    End of arguments. No more arguments may occur.

    *)
  2. | VarArgs : (_, 'l, 'r) arg_desc -> ('l, 'r) args_desc
    (*

    Variadic arguments, all with the same argument descriptor. Any number of arguments (including 0) may occur.

    *)
  3. | :: : ('k, _, 'm) arg_desc * ('m, 'r) args_desc -> ('k, 'r) args_desc
    (*

    Cons one argument descriptor. Argument must occur.

    *)

Arguments descriptor. Overrides standard list syntax.

val special : ?attrs:LibraryDesc.attr list -> ('k, LibraryDesc.special) args_desc -> 'k -> LibraryDesc.t

Create library function descriptor from arguments descriptor and continuation function, which takes as many arguments as are captured using __ and returns the corresponding LibraryDesc.special.

Create library function descriptor from arguments descriptor, which must drop all arguments, and continuation function, which takes as an unit argument and returns the corresponding LibraryDesc.special. Unlike special, this allows the LibraryDesc.special of an argumentless function to depend on options, such that they aren't evaluated at initialization time in LibraryFunctions.

Create unknown library function descriptor from arguments descriptor, which must drop all arguments.

val __ : string -> LibraryDesc.Access.t list -> (GoblintCil.Cil.exp -> 'r, GoblintCil.Cil.exp list -> 'r, 'r) arg_desc

Argument descriptor, which captures the named argument with accesses for continuation function of special.

val __' : LibraryDesc.Access.t list -> (GoblintCil.Cil.exp -> 'r, GoblintCil.Cil.exp list -> 'r, 'r) arg_desc

Argument descriptor, which captures an unnamed argument with accesses for continuation function of special.

val drop : string -> LibraryDesc.Access.t list -> ('r, 'r, 'r) arg_desc

Argument descriptor, which drops (does not capture) the named argument with accesses.

val drop' : LibraryDesc.Access.t list -> ('r, 'r, 'r) arg_desc

Argument descriptor, which drops (does not capture) an unnamed argument with accesses.

Shallow AccessKind.t.Read access. All immediate arguments of function calls are always read, this specifies the reading of pointed-to values.

Deep AccessKind.t.Read access. All immediate arguments of function calls are always read, this specifies the reading of pointed-to values. Rarely needed.

Shallow AccessKind.t.Write access.

Deep AccessKind.t.Write access. Rarely needed.

Shallow AccessKind.t.Free access.

Deep AccessKind.t.Free access. Rarely needed.

Shallow AccessKind.t.Spawn access.

Deep AccessKind.t.Spawn access. Rarely needed.

Shallow AccessKind.t.Spawn access, substituting function pointer calls for now (TODO).

Deep AccessKind.t.Spawn access, substituting deep function pointer calls for now (TODO)

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