fix(internal/parsers/clang_tidy/parser.go): check the return value of executor, if not 0 or 1 then report error

examples/clang-tidy/sillycode

@@ -1 +1 @@
-Subproject commit 580d9c9e20ae887551af2f87483d82cf6efa6f6d
+Subproject commit 4b00eacf88277a06bbb5052e5b2688cd622521d0

internal/parsers/clang_tidy/parser.go

@@ -1,9 +1,11 @@
 package clang_tidy
 
 import (
+	"fmt"
 	"strings"
 
 	"focs.ji.sjtu.edu.cn/git/FOCS-dev/JOJ3/internal/stage"
+	"github.com/criyle/go-judge/envexec"
 )
 
 type Match struct {
@@ -21,21 +23,24 @@ type ClangTidy struct{}
 
 func Parse(executorResult stage.ExecutorResult, conf Conf) stage.ParserResult {
 	stdout := executorResult.Files["stdout"]
+	stderr := executorResult.Files["stderr"]
 
 	lines := strings.SplitAfter(stdout, "\n")
 	messages := parse_lines(lines, conf)
 	formatted_messages := format(messages)
 
-	// TODO: Handle unexpected errors from executor
-	// if executorResult.Status != stage.Status(envexec.StatusAccepted) {
-	// 	return stage.ParserResult{
-	// 		Score: 0,
-	// 		Comment: fmt.Sprintf(
-	// 			"Unexpected executor status: %s.\nStderr: %s",
-	// 			executorResult.Status, stderr,
-	// 		),
-	// 	}
-	// }
+	if executorResult.Status != stage.Status(envexec.StatusAccepted) {
+		if !((executorResult.Status == stage.Status(envexec.StatusNonzeroExitStatus)) &&
+			(executorResult.ExitStatus == 1)) {
+			return stage.ParserResult{
+				Score: 0,
+				Comment: fmt.Sprintf(
+					"Unexpected executor status: %s.\nStderr: %s",
+					executorResult.Status, stderr,
+				),
+			}
+		}
+	}
 	return stage.ParserResult{
 		Score:   get_score(formatted_messages, conf),
 		Comment: get_comment(formatted_messages),