feat: add nilaway static analysis tool

go.mod

@@ -122,7 +122,7 @@ require (
 	gitlab.com/bosi/decorder v0.4.1
 	go-simpler.org/musttag v0.8.0
 	go-simpler.org/sloglint v0.3.0
-	golang.org/x/exp v0.0.0-20230510235704-dd950f8aeaea
+	golang.org/x/exp v0.0.0-20230713183714-613f0c0eb8a1
 	golang.org/x/tools v0.15.0
 	gopkg.in/yaml.v3 v3.0.1
 	honnef.co/go/tools v0.4.6
@@ -158,6 +158,7 @@ require (
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/kisielk/gotool v1.0.0 // indirect
+	github.com/klauspost/compress v1.17.0 // indirect
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/magiconair/properties v1.8.6 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
@@ -189,6 +190,7 @@ require (
 	github.com/yusufpapurcu/wmi v1.2.3 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/nilaway v0.0.0-20231117175943-a267567c6fff // indirect
 	go.uber.org/zap v1.24.0 // indirect
 	golang.org/x/exp/typeparams v0.0.0-20230307190834-24139beb5833 // indirect
 	golang.org/x/mod v0.14.0 // indirect

pkg/golinters/nilaway.go

@@ -0,0 +1,18 @@
+package golinters
+
+import (
+	"github.com/golangci/golangci-lint/pkg/golinters/goanalysis"
+	"go.uber.org/nilaway"
+	"golang.org/x/tools/go/analysis"
+)
+
+func NewNilAway() *goanalysis.Linter {
+	a := nilaway.Analyzer
+
+	return goanalysis.NewLinter(
+		a.Name,
+		a.Doc,
+		[]*analysis.Analyzer{a},
+		nil,
+	).WithLoadMode(goanalysis.LoadModeTypesInfo)
+}

pkg/lint/lintersdb/manager.go

@@ -670,6 +670,12 @@ func (m Manager) GetAllSupportedLinterConfigs() []*linter.Config {
 			WithPresets(linter.PresetComplexity).
 			WithURL("https://github.com/nakabonne/nestif"),
 
+		linter.NewConfig(golinters.NewNilAway()).
+			WithSince("v1.55.3").
+			WithLoadForGoAnalysis().
+			WithPresets(linter.PresetBugs).
+			WithURL("https://github.com/uber-go/nilaway/"),
+
 		linter.NewConfig(golinters.NewNilErr()).
 			WithSince("v1.38.0").
 			WithLoadForGoAnalysis().

test/testdata/nilaway.go

@@ -0,0 +1,26 @@
+package testdata
+
+type P struct {
+	f int
+}
+
+// nilAwayExample1 tests NilAway's detection of uninitialized variable access.
+func nilAwayExample1(someCondition bool) {
+	var p *P
+	if someCondition {
+		p = &P{}
+	}
+	// NilAway should report a potential nil pointer dereference here if someCondition is false.
+	if p != nil {
+		print(p.f)
+	}
+}
+
+// nilAwayExample2 tests NilAway's detection of nil returns across function boundaries.
+func nilAwayExample2() {
+	print(*nilAwayFoo()) // NilAway should report an error here.
+}
+
+func nilAwayFoo() *int {
+	return nil
+}