fix: suggestion when m is not a variable

Author: ldez

Diff for: exptostd.go

@@ -356,11 +356,6 @@ func suggestedFixForClear(callExpr *ast.CallExpr) (analysis.SuggestedFix, error)
 }
 
 func suggestedFixForKeysOrValues(callExpr *ast.CallExpr) (analysis.SuggestedFix, error) {
-	var name string
-	if ident, ok := callExpr.Args[0].(*ast.Ident); ok {
-		name = ident.Name
-	}
-
 	s := &ast.CallExpr{
 		Fun: &ast.SelectorExpr{
 			X:   &ast.Ident{Name: "slices"},
@@ -375,10 +370,8 @@ func suggestedFixForKeysOrValues(callExpr *ast.CallExpr) (analysis.SuggestedFix,
 					},
 					&ast.BasicLit{Kind: token.INT, Value: "0"},
 					&ast.CallExpr{
-						Fun: &ast.Ident{Name: "len"},
-						Args: []ast.Expr{
-							&ast.Ident{Name: name},
-						},
+						Fun:  &ast.Ident{Name: "len"},
+						Args: callExpr.Args,
 					},
 				},
 			},

Diff for: testdata/src/expmaps/maps.go

@@ -25,3 +25,27 @@ func _(m, a map[string]string) {
 
 	maps.Clear(m) // want `golang.org/x/exp/maps.Clear\(\) can be replaced by clear\(\)`
 }
+
+type foo struct {
+	m map[string]int
+}
+
+func _() {
+
+	f := foo{
+		m: map[string]int{
+			"foo": 1,
+			"bar": 2,
+		},
+	}
+
+	maps.Keys(f.m) // want `golang.org/x/exp/maps\.Keys\(\) can be replaced by slices\.AppendSeq\(make\(\[\]T, 0, len\(data\)\), maps\.Keys\(data\)\)`
+}
+
+func _() {
+	maps.Keys(someFunc().m) // want `golang.org/x/exp/maps\.Keys\(\) can be replaced by slices\.AppendSeq\(make\(\[\]T, 0, len\(data\)\), maps\.Keys\(data\)\)`
+}
+
+func someFunc() foo {
+	return foo{}
+}

Diff for: testdata/src/expmaps/maps.go.golden

@@ -26,3 +26,26 @@ func _(m, a map[string]string) {
 	clear(m) // want `golang.org/x/exp/maps.Clear\(\) can be replaced by clear\(\)`
 }
 
+type foo struct {
+	m map[string]int
+}
+
+func _() {
+
+	f := foo{
+		m: map[string]int{
+			"foo": 1,
+			"bar": 2,
+		},
+	}
+
+	slices.AppendSeq(make([]T, 0, len(f.m)), maps.Keys(f.m)) // want `golang.org/x/exp/maps\.Keys\(\) can be replaced by slices\.AppendSeq\(make\(\[\]T, 0, len\(data\)\), maps\.Keys\(data\)\)`
+}
+
+func _() {
+	slices.AppendSeq(make([]T, 0, len(someFunc().m)), maps.Keys(someFunc().m)) // want `golang.org/x/exp/maps\.Keys\(\) can be replaced by slices\.AppendSeq\(make\(\[\]T, 0, len\(data\)\), maps\.Keys\(data\)\)`
+}
+
+func someFunc() foo {
+	return foo{}
+}