JContext (infer.InferModules.JContext)

type jump_kind =

| Next

| Jump of int

| Exit

data structure for representing whether an instruction is a goto, a return or a standard instruction.

module NodeTbl : InferStdlib.IStd.Caml.Hashtbl.S with type NodeTbl.key = InferIR.Procdesc.Node.t

Hastable for storing nodes that correspond to if-instructions. These are used when adding the edges in the contrl flow graph.

type icfg = {

tenv : InferIR.Tenv.t;

cfg : InferIR.Cfg.t;

}

data structure for saving the three structures tht contain the intermediate representation of a file: the type environment, the control graph and the control flow graph

type t = private {

icfg : icfg;

procdesc : InferIR.Procdesc.t;

impl : Sawja_pack.JBir.t;

mutable var_map : (InferIR.Pvar.t * InferIR.Typ.t * InferIR.Typ.t) Sawja_pack.JBir.VarMap.t;

if_jumps : int NodeTbl.t;

goto_jumps : (int, jump_kind) InferStdlib.IStd.Caml.Hashtbl.t;

cn : Javalib_pack.JBasics.class_name;

source_file : InferBase.SourceFile.t;

program : JClasspath.program;

}

data structure for storing the context elements.

val create_context : icfg ‑> InferIR.Procdesc.t ‑> Sawja_pack.JBir.t ‑> Javalib_pack.JBasics.class_name ‑> InferBase.SourceFile.t ‑> JClasspath.program ‑> t

cretes a context for a given method.

val get_tenv : t ‑> InferIR.Tenv.t

returns the type environment that corresponds to the current file.

val add_if_jump : t ‑> InferIR.Procdesc.Node.t ‑> int ‑> unit

adds to the context the line that an if-node will jump to

val get_if_jump : t ‑> InferIR.Procdesc.Node.t ‑> int option

returns whether the given node corresponds to an if-instruction

val add_goto_jump : t ‑> int ‑> jump_kind ‑> unit

adds to the context the line that the node in the given line will jump to.

val get_goto_jump : t ‑> int ‑> jump_kind

if the given line corresponds to a goto instruction, then returns the line where it jumps to, otherwise returns the next line.

val is_goto_jump : t ‑> int ‑> bool

returns whether the given line corresponds to a goto instruction.

val set_pvar : t ‑> Sawja_pack.JBir.var ‑> InferIR.Typ.t ‑> InferIR.Pvar.t

set_pvar context var type adds a variable with a type to the context

val get_var_type : t ‑> Sawja_pack.JBir.var ‑> InferIR.Typ.t option

get_var_type context var returns the type of the variable, if the variable is in the context