Add boolean value comparison to where tpl function

`where` template function's internal condition check function doesn't
check boolean values and always returns `false` silently.

This adds missing boolean value comparison to the function.
`where Values ".Param.key" true` like clause can be used.

Only "=", "==", "eq", "!=", "<>", "ne" operators are allowed to be used
with a boolean value. If an other operator is passed with it, the
condition check function returns `false` like before.

Author: tatsushid

tpl/template_funcs.go

@@ -588,6 +588,16 @@ func checkCondition(v, mv reflect.Value, op string) (bool, error) {
 		return false, nil
 	}
 
+	if v.Kind() == reflect.Bool && mv.Kind() == reflect.Bool {
+		switch op {
+		case "", "=", "==", "eq":
+			return v.Bool() == mv.Bool(), nil
+		case "!=", "<>", "ne":
+			return v.Bool() != mv.Bool(), nil
+		}
+		return false, nil
+	}
+
 	var ivp, imvp *int64
 	var svp, smvp *string
 	var ima []int64

tpl/template_funcs_test.go

@@ -727,6 +727,7 @@ func TestCheckCondition(t *testing.T) {
 			"",
 			expect{true, false},
 		},
+		{reflect.ValueOf(true), reflect.ValueOf(true), "", expect{true, false}},
 		{reflect.ValueOf(nil), reflect.ValueOf(nil), "", expect{true, false}},
 		{reflect.ValueOf(123), reflect.ValueOf(456), "!=", expect{true, false}},
 		{reflect.ValueOf("foo"), reflect.ValueOf("bar"), "!=", expect{true, false}},
@@ -736,6 +737,7 @@ func TestCheckCondition(t *testing.T) {
 			"!=",
 			expect{true, false},
 		},
+		{reflect.ValueOf(true), reflect.ValueOf(false), "!=", expect{true, false}},
 		{reflect.ValueOf(123), reflect.ValueOf(nil), "!=", expect{true, false}},
 		{reflect.ValueOf(456), reflect.ValueOf(123), ">=", expect{true, false}},
 		{reflect.ValueOf("foo"), reflect.ValueOf("bar"), ">=", expect{true, false}},
@@ -799,8 +801,12 @@ func TestCheckCondition(t *testing.T) {
 		{reflect.ValueOf("foo"), reflect.Value{}, "", expect{false, false}},
 		{reflect.ValueOf((*TstX)(nil)), reflect.ValueOf("foo"), "", expect{false, false}},
 		{reflect.ValueOf("foo"), reflect.ValueOf((*TstX)(nil)), "", expect{false, false}},
+		{reflect.ValueOf(true), reflect.ValueOf("foo"), "", expect{false, false}},
+		{reflect.ValueOf("foo"), reflect.ValueOf(true), "", expect{false, false}},
 		{reflect.ValueOf("foo"), reflect.ValueOf(map[int]string{}), "", expect{false, false}},
 		{reflect.ValueOf("foo"), reflect.ValueOf([]int{1, 2}), "", expect{false, false}},
+		{reflect.ValueOf((*TstX)(nil)), reflect.ValueOf((*TstX)(nil)), ">", expect{false, false}},
+		{reflect.ValueOf(true), reflect.ValueOf(false), ">", expect{false, false}},
 		{reflect.ValueOf(123), reflect.ValueOf([]int{}), "in", expect{false, false}},
 		{reflect.ValueOf(123), reflect.ValueOf(123), "op", expect{false, true}},
 	} {
@@ -1024,6 +1030,31 @@ func TestWhere(t *testing.T) {
 			key: "b", op: ">", match: nil,
 			expect: []map[string]int{},
 		},
+		{
+			sequence: []map[string]bool{
+				{"a": true, "b": false}, {"c": true, "b": true}, {"d": true, "b": false},
+			},
+			key: "b", op: "", match: true,
+			expect: []map[string]bool{
+				{"c": true, "b": true},
+			},
+		},
+		{
+			sequence: []map[string]bool{
+				{"a": true, "b": false}, {"c": true, "b": true}, {"d": true, "b": false},
+			},
+			key: "b", op: "!=", match: true,
+			expect: []map[string]bool{
+				{"a": true, "b": false}, {"d": true, "b": false},
+			},
+		},
+		{
+			sequence: []map[string]bool{
+				{"a": true, "b": false}, {"c": true, "b": true}, {"d": true, "b": false},
+			},
+			key: "b", op: ">", match: false,
+			expect: []map[string]bool{},
+		},
 		{sequence: (*[]TstX)(nil), key: "A", match: "a", expect: false},
 		{sequence: TstX{A: "a", B: "b"}, key: "A", match: "a", expect: false},
 		{sequence: []map[string]*TstX{{"foo": nil}}, key: "foo.B", match: "d", expect: false},