perfsprint: add new options

Author: ldez

.golangci.next.reference.yml

@@ -2253,6 +2253,12 @@ linters:
       # Enable/disable optimization of hex formatting.
       # Default: true
       hex-format: false
+      # Enable/disable optimization of concat loop.
+      # Default: true
+      concat-loop: false
+      # Optimization of `concat-loop` even with other operations.
+      # Default: false
+      loop-other-ops: true
 
     prealloc:
       # IMPORTANT: we don't recommend using this linter before doing performance profiling.

jsonschema/golangci.next.jsonschema.json

@@ -3004,6 +3004,16 @@
               "description": "Enable/disable optimization of hex formatting.",
               "type": "boolean",
               "default": true
+            },
+            "concat-loop": {
+              "description": "Enable/disable optimization of concat loop.",
+              "type": "boolean",
+              "default": true
+            },
+            "loop-other-ops": {
+              "description": "Optimization of `concat-loop` even with other operations.",
+              "type": "boolean",
+              "default": false
             }
           }
         },

pkg/config/linters_settings.go

@@ -131,6 +131,7 @@ var defaultLintersSettings = LintersSettings{
 		StrConcat:     true,
 		BoolFormat:    true,
 		HexFormat:     true,
+		ConcatLoop:    true,
 	},
 	Prealloc: PreallocSettings{
 		Simple:     true,
@@ -794,6 +795,9 @@ type PerfSprintSettings struct {
 
 	BoolFormat bool `mapstructure:"bool-format"`
 	HexFormat  bool `mapstructure:"hex-format"`
+
+	ConcatLoop   bool `mapstructure:"concat-loop"`
+	LoopOtherOps bool `mapstructure:"loop-other-ops"`
 }
 
 type PreallocSettings struct {

pkg/golinters/perfsprint/perfsprint.go

@@ -28,6 +28,9 @@ func New(settings *config.PerfSprintSettings) *goanalysis.Linter {
 
 		cfg["bool-format"] = settings.BoolFormat
 		cfg["hex-format"] = settings.HexFormat
+
+		cfg["concat-loop"] = settings.ConcatLoop
+		cfg["loop-other-ops"] = settings.LoopOtherOps
 	}
 
 	return goanalysis.