| // Copyright 2018 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| //go:build wasm | |
| package exec | |
| import ( | |
| "errors" | |
| ) | |
| // ErrNotFound is the error resulting if a path search failed to find an executable file. | |
| var ErrNotFound = errors.New("executable file not found in $PATH") | |
| // LookPath searches for an executable named file in the | |
| // directories named by the PATH environment variable. | |
| // If file contains a slash, it is tried directly and the PATH is not consulted. | |
| // The result may be an absolute path or a path relative to the current directory. | |
| func LookPath(file string) (string, error) { | |
| // Wasm can not execute processes, so act as if there are no executables at all. | |
| return "", &Error{file, ErrNotFound} | |
| } | |
| // lookExtensions is a no-op on non-Windows platforms, since | |
| // they do not restrict executables to specific extensions. | |
| func lookExtensions(path, dir string) (string, error) { | |
| return path, nil | |
| } | |