1// Copyright 2018 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// +build js,wasm
6
7package exec
8
9import (
10	"errors"
11)
12
13// ErrNotFound is the error resulting if a path search failed to find an executable file.
14var ErrNotFound = errors.New("executable file not found in $PATH")
15
16// LookPath searches for an executable named file in the
17// directories named by the PATH environment variable.
18// If file contains a slash, it is tried directly and the PATH is not consulted.
19// The result may be an absolute path or a path relative to the current directory.
20func LookPath(file string) (string, error) {
21	// Wasm can not execute processes, so act as if there are no executables at all.
22	return "", &Error{file, ErrNotFound}
23}
24