moved a subset of source file to the kern package

t_funcs_test.go

@@ -6,6 +6,8 @@ package expr
 
 import (
 	"testing"
+
+	"git.portale-stac.it/go-pkg/expr/kern"
 )
 
 func TestFuncs(t *testing.T) {
@@ -47,12 +49,12 @@ func TestFuncs(t *testing.T) {
 	runTestSuite(t, section, inputs)
 }
 
-func dummy(ctx ExprContext, name string, args map[string]any) (result any, err error) {
+func dummy(ctx kern.ExprContext, name string, args map[string]any) (result any, err error) {
 	return
 }
 
 func TestFunctionToStringSimple(t *testing.T) {
-	source := NewGolangFunctor(dummy)
+	source := kern.NewGolangFunctor(dummy)
 	want := "func(){}"
 	got := source.ToString(0)
 	if got != want {
@@ -61,8 +63,8 @@ func TestFunctionToStringSimple(t *testing.T) {
 }
 
 func TestFunctionGetFunc(t *testing.T) {
-	source := NewGolangFunctor(dummy)
-	want := ExprFunc(nil)
+	source := kern.NewGolangFunctor(dummy)
+	want := kern.ExprFunc(nil)
 	got := source.GetFunc()
 	if got != want {
 		t.Errorf(`(func() -> result = %v [%T], want = %v [%T]`, got, got, want, want)
@@ -76,16 +78,16 @@ func TestGoFunction(t *testing.T) {
 		/*   2 */ {`myName("Peppino")`, "Peppino", nil},
 	}
 
-	myName := func(ctx ExprContext, name string, args map[string]any) (result any, err error) {
+	myName := func(ctx kern.ExprContext, name string, args map[string]any) (result any, err error) {
 		var ok bool
 		if result, ok = args["name"].(string); !ok {
-			err = ErrWrongParamType(name, "name", TypeString, args["name"])
+			err = kern.ErrWrongParamType(name, "name", kern.TypeString, args["name"])
 		}
 		return
 	}
 
-	ctx := NewSimpleStore()
-	ctx.RegisterFunc("myName", NewGolangFunctor(myName), TypeString, []ExprFuncParam{
+	ctx := NewSimpleStoreWithoutGlobalContext()
+	ctx.RegisterFunc("myName", kern.NewGolangFunctor(myName), kern.TypeString, []kern.ExprFuncParam{
 		NewFuncParamFlagDef("name", PfOptional|PfDefault, "Celestino Amoroso"),
 	})