Update argument type of set expr function

It changes 3rd argument type os set expr function from TypedValue to interface, since GvalParser parses argument to native types before evaluating the expression.

pkg/expr/expr_types.go

@@ -63,13 +63,18 @@ func ResolveTypes(rt resolvableType, resolver func(typ string) Type) error {
 	return rt.ResolveTypes(resolver)
 }
 
-func set(m merger, key string, val TypedValue) (out TypedValue, err error) {
+func set(m merger, key string, val interface{}) (out TypedValue, err error) {
 	out, err = m.Merge()
 	if err != nil {
 		return
 	}
 
-	err = Assign(out, key, val)
+	v, err := Typify(val)
+	if err != nil {
+		return
+	}
+
+	err = Assign(out, key, v)
 	if err != nil {
 		return
 	}

pkg/expr/parser_test.go

@@ -6,6 +6,12 @@ import (
 	"testing"
 )
 
+func Example_simpleExpression() {
+	eval(`40 + 2`, nil)
+	// output:
+	// 42
+}
+
 func TestParser(t *testing.T) {
 	var (
 		req    = require.New(t)
@@ -23,8 +29,24 @@ func TestParser(t *testing.T) {
 	req.True(result)
 }
 
-func Example_simpleExpresion() {
-	eval(`40 + 2`, nil)
-	// output:
-	// 42
+func TestGvalParser(t *testing.T) {
+	var (
+		req     = require.New(t)
+		ctx     = context.Background()
+		p       = NewGvalParser()
+		vv, err = NewVars(map[string]interface{}{
+			"vars":  &Vars{},
+			"key":   "foo",
+			"value": Must(NewString("foo")),
+		})
+		result interface{}
+	)
+	req.NoError(err)
+
+	pp, err := p.Parse("toJSON(set(vars, key, value))")
+	req.NoError(err)
+
+	result, err = pp.Eval(ctx, vv)
+	req.NoError(err)
+	req.Equal("{\"foo\":{\"@value\":\"foo\",\"@type\":\"String\"}}", result)
 }

pkg/expr/vars_test.go

@@ -2,7 +2,6 @@ package expr
 
 import (
 	"encoding/json"
-	"fmt"
 	"github.com/stretchr/testify/require"
 	"testing"
 )
@@ -180,8 +179,6 @@ func TestVars_Assign(t *testing.T) {
 	req.NoError(Assign(vars, "foo", &String{value: "foo"}))
 	req.NoError(Assign(vars, "vars", &Vars{}))
 	req.NoError(Assign(vars, "vars.foo", &String{value: "foo"}))
-
-	fmt.Println("Vars: ", vars)
 }
 
 func TestVars_Set(t *testing.T) {
@@ -195,7 +192,6 @@ func TestVars_Set(t *testing.T) {
 	)
 
 	out, err := set(vars, "k1", &String{value: "v11"})
-	fmt.Println("Out: ", out)
 	req.NoError(err)
 	req.Equal(&String{value: "v11"}, out.(*Vars).GetValue()["k1"])
 
@@ -223,9 +219,7 @@ func TestVars_MergeVars(t *testing.T) {
 		}}
 	)
 
-	fmt.Println("vars: ", vars)
 	out := vars.MustMerge(&foo, &bar)
-	fmt.Println("vars: ", out)
 	req.Equal(expected, out)
 }