fix: typecheck issues should never be ignored (#4870)

pkg/result/processors/autogenerated_exclude.go

@@ -63,11 +63,6 @@ func (p *AutogeneratedExclude) Process(issues []result.Issue) ([]result.Issue, e
 func (*AutogeneratedExclude) Finish() {}
 
 func (p *AutogeneratedExclude) shouldPassIssue(issue *result.Issue) (bool, error) {
-	if issue.FromLinter == typeCheckName {
-		// don't hide typechecking errors in generated files: users expect to see why the project isn't compiling
-		return true, nil
-	}
-
 	if filepath.Base(issue.FilePath()) == "go.mod" {
 		return true, nil
 	}

pkg/result/processors/autogenerated_exclude_test.go

@@ -158,14 +158,6 @@ func Test_shouldPassIssue(t *testing.T) {
 		issue  *result.Issue
 		assert assert.BoolAssertionFunc
 	}{
-		{
-			desc: "typecheck issue",
-			mode: AutogeneratedModeLax,
-			issue: &result.Issue{
-				FromLinter: "typecheck",
-			},
-			assert: assert.True,
-		},
 		{
 			desc: "lax ",
 			mode: AutogeneratedModeLax,

pkg/result/processors/invalid_issue.go

@@ -22,7 +22,7 @@ func (InvalidIssue) Name() string {
 }
 
 func (p InvalidIssue) Process(issues []result.Issue) ([]result.Issue, error) {
-	tcIssues := filterIssues(issues, func(issue *result.Issue) bool {
+	tcIssues := filterIssuesUnsafe(issues, func(issue *result.Issue) bool {
 		return issue.FromLinter == typeCheckName
 	})
 

pkg/result/processors/issues.go

@@ -7,6 +7,23 @@ import (
 )
 
 func filterIssues(issues []result.Issue, filter func(issue *result.Issue) bool) []result.Issue {
+	retIssues := make([]result.Issue, 0, len(issues))
+	for i := range issues {
+		if issues[i].FromLinter == typeCheckName {
+			// don't hide typechecking errors in generated files: users expect to see why the project isn't compiling
+			retIssues = append(retIssues, issues[i])
+			continue
+		}
+
+		if filter(&issues[i]) {
+			retIssues = append(retIssues, issues[i])
+		}
+	}
+
+	return retIssues
+}
+
+func filterIssuesUnsafe(issues []result.Issue, filter func(issue *result.Issue) bool) []result.Issue {
 	retIssues := make([]result.Issue, 0, len(issues))
 	for i := range issues {
 		if filter(&issues[i]) {
@@ -20,6 +37,12 @@ func filterIssues(issues []result.Issue, filter func(issue *result.Issue) bool)
 func filterIssuesErr(issues []result.Issue, filter func(issue *result.Issue) (bool, error)) ([]result.Issue, error) {
 	retIssues := make([]result.Issue, 0, len(issues))
 	for i := range issues {
+		if issues[i].FromLinter == typeCheckName {
+			// don't hide typechecking errors in generated files: users expect to see why the project isn't compiling
+			retIssues = append(retIssues, issues[i])
+			continue
+		}
+
 		ok, err := filter(&issues[i])
 		if err != nil {
 			return nil, fmt.Errorf("can't filter issue %#v: %w", issues[i], err)

pkg/result/processors/max_from_linter.go

@@ -33,7 +33,7 @@ func (p *MaxFromLinter) Process(issues []result.Issue) ([]result.Issue, error) {
 		return issues, nil
 	}
 
-	return filterIssues(issues, func(issue *result.Issue) bool {
+	return filterIssuesUnsafe(issues, func(issue *result.Issue) bool {
 		if issue.Replacement != nil && p.cfg.Issues.NeedFix {
 			// we need to fix all issues at once => we need to return all of them
 			return true

pkg/result/processors/max_per_file_from_linter.go

@@ -33,7 +33,7 @@ func (*MaxPerFileFromLinter) Name() string {
 }
 
 func (p *MaxPerFileFromLinter) Process(issues []result.Issue) ([]result.Issue, error) {
-	return filterIssues(issues, func(issue *result.Issue) bool {
+	return filterIssuesUnsafe(issues, func(issue *result.Issue) bool {
 		limit := p.maxPerFileFromLinterConfig[issue.FromLinter]
 		if limit == 0 {
 			return true

pkg/result/processors/max_same_issues.go

@@ -35,7 +35,7 @@ func (p *MaxSameIssues) Process(issues []result.Issue) ([]result.Issue, error) {
 		return issues, nil
 	}
 
-	return filterIssues(issues, func(issue *result.Issue) bool {
+	return filterIssuesUnsafe(issues, func(issue *result.Issue) bool {
 		if issue.Replacement != nil && p.cfg.Issues.NeedFix {
 			// we need to fix all issues at once => we need to return all of them
 			return true

pkg/result/processors/uniq_by_line.go

@@ -30,7 +30,7 @@ func (p *UniqByLine) Process(issues []result.Issue) ([]result.Issue, error) {
 		return issues, nil
 	}
 
-	return filterIssues(issues, p.shouldPassIssue), nil
+	return filterIssuesUnsafe(issues, p.shouldPassIssue), nil
 }
 
 func (*UniqByLine) Finish() {}