src.elv.sh@v0.21.0-dev.0.20240515223629-06979efb9a2a/pkg/edit/repl.go (about)

     1  package edit
     2  
     3  // This file encapsulates functionality related to a complete REPL cycle. Such as capturing
     4  // information about the most recently executed interactive command.
     5  
     6  import (
     7  	"src.elv.sh/pkg/eval"
     8  	"src.elv.sh/pkg/eval/vals"
     9  	"src.elv.sh/pkg/eval/vars"
    10  	"src.elv.sh/pkg/parse"
    11  )
    12  
    13  func initRepl(ed *Editor, ev *eval.Evaler, nb eval.NsBuilder) {
    14  	var commandDuration float64
    15  	// TODO: Ensure that this variable can only be written from the Elvish code
    16  	// in elv_init.go.
    17  	nb.AddVar("command-duration", vars.FromPtr(&commandDuration))
    18  
    19  	afterCommandHook := newListVar(vals.EmptyList)
    20  	nb.AddVar("after-command", afterCommandHook)
    21  	ed.AfterCommand = append(ed.AfterCommand,
    22  		func(src parse.Source, duration float64, err error) {
    23  			m := vals.MakeMap("src", src, "duration", duration, "error", err)
    24  			eval.CallHook(ev, nil, "$<edit>:after-command", afterCommandHook.Get().(vals.List), m)
    25  		})
    26  }