[#16] noliteral: Fix nested functions

Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>

internal/analyzers/noliteral/linter.go

@@ -2,6 +2,7 @@ package noliteral
 
 import (
 	"go/ast"
+	"go/token"
 
 	astutils "git.frostfs.info/TrueCloudLab/linters/pkg/ast-utils"
 	"github.com/mitchellh/mapstructure"
@@ -51,7 +52,17 @@ func run(pass *analysis.Pass) (interface{}, error) {
 	}
 	for _, file := range pass.Files {
 		ast.Inspect(file, func(n ast.Node) bool {
-			switch n.(type) {
+			switch v := n.(type) {
+			// a := zap.Error()
+			case *ast.AssignStmt:
+				if _, ok := v.Rhs[0].(*ast.CallExpr); ok {
+					return false
+				}
+			// a := &log.Error()
+			case *ast.UnaryExpr:
+				if _, ok := v.X.(*ast.CallExpr); ok && v.Op == token.AND {
+					return false
+				}
 			// log.Error()
 			case *ast.CallExpr:
 				if expr, ok := n.(*ast.CallExpr); ok {
@@ -69,18 +80,18 @@ func analyzeCallExpr(pass *analysis.Pass, expr *ast.CallExpr, file *ast.File) bo
 	isLog, _ := astutils.IsTargetMethod(expr.Fun, Config.TargetMethods)
 
 	if !isLog || len(expr.Args) == 0 || astutils.HasNoLintComment(pass, expr.Pos()) {
-		return true
+		return false
 	}
 
 	if !astutils.IsStringValue(expr.Args[0]) {
 		alias, _ := astutils.GetAliasByPkgName(file, Config.ConstantsPackage)
 		if Config.ConstantsPackage == "" || astutils.GetPackageName(expr.Args[0]) == alias || astutils.GetPackageName(expr.Args[0]) == "" {
-			return true
+			return false
 		}
 
 		for _, pkgName := range Config.DisablePackages {
 			if pkgName == astutils.GetPackageName(expr.Args[0]) {
-				return true
+				return false
 			}
 		}
 
@@ -91,7 +102,7 @@ func analyzeCallExpr(pass *analysis.Pass, expr *ast.CallExpr, file *ast.File) bo
 			Message:        "Wrong package for constants",
 			SuggestedFixes: nil,
 		})
-		return true
+		return false
 	}
 
 	pass.Report(analysis.Diagnostic{

internal/analyzers/noliteral/test-case/const-location/positive._go

@@ -23,6 +23,27 @@ func (c *cfg) custom_ok_const() {
 	c.log.Abyr(tochno_ne_dly_const_log.MSG)
 }
 
+// issue: https://git.frostfs.info/TrueCloudLab/linters/issues/16.
+// Check that the check does not trigger a false positive for "zap.Error(invalid_pkg.Error)" passed as an argument.
+func (c *cfg) debug1_ok() { 
+	c.log.Debug(tochno_ne_dly_const_log.MSG, zap.Stringer("cid", bkt.CID), zap.String("oid", obj.VersionID), zap.Error(invalid_pkg.Error))
+}
+
+func (c *cfg) error_ok() {
+	field:=zap.Error(invalid_pkg.Error)
+}
+
+func (c *cfg) error_ok() {
+	callBack:=&zap.Error(invalid_pkg.Error)
+}
+
+func (c *cfg) error_ok() {
+	field=zap.Error(invalid_pkg.Error)
+}
+
+func (c *cfg) error_ok() {
+	callBack=&zap.Error(invalid_pkg.Error)
+}
 
 type Logger interface {
 	Debug(msg string)

internal/analyzers/noliteral/test-case/literals/positive._go

@@ -15,6 +15,16 @@ func (c *cfg) debug_ok() {
 	c.log.Debug(logs.MSG) //acceptable
 }
 
+// issue: https://git.frostfs.info/TrueCloudLab/linters/issues/16.
+// Check that the check does not trigger a false positive for "zap.Error("literal")" passed as an argument.
+func (c *cfg) debug1_ok() { 
+	c.log.Debug(logs.MSG, zap.Stringer("cid", bkt.CID), zap.String("oid", obj.VersionID), zap.Error("literal"))
+}
+
+func (c *cfg) debug1_ok() { 
+	f(zap.Error("logs.MSG"))
+}
+
 func (c *cfg) error_ok() {
 	c.log.Error(logs.MSG) //acceptable
 }