1 files changed, 49 insertions, 0 deletions
diff --git a/test/fixedbugs/issue36437.go b/test/fixedbugs/issue36437.go
new file mode 100644
index 0000000..c7a11d2
--- /dev/null
+++ b/test/fixedbugs/issue36437.go
@@ -0,0 +1,49 @@
+// run
+
+// +build !nacl,!js,gc
+
+// Copyright 2020 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.
+
+// Tests that when non-existent files are passed to the
+// compiler, such as in:
+//    go tool compile foo
+// we don't print the beginning position:
+//    foo:0: open foo: no such file or directory
+// but instead omit it and print out:
+//    open foo: no such file or directory
+
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"regexp"
+)
+
+func main() {
+	tmpDir, err := ioutil.TempDir("", "issue36437")
+	if err != nil {
+		panic(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	msgOrErr := func(msg []byte, err error) string {
+		if len(msg) == 0 && err != nil {
+			return err.Error()
+		}
+		return string(msg)
+	}
+
+	filename := "non-existent.go"
+	output, err := exec.Command("go", "tool", "compile", filename).CombinedOutput()
+	got := msgOrErr(output, err)
+
+	regFilenamePos := regexp.MustCompile(filename + ":\\d+")
+	if regFilenamePos.MatchString(got) {
+		fmt.Printf("Error message must not contain filename:pos, but got:\n%q\n", got)
+	}
+}