Flatten(): render even large numbers as-is, not using scientific nota…

…tion

E.g. 2000000000000000000 (explicitly), not 2e+18 (as with fmt.Sprintf("%v")).

pkg/flatten/flatten.go

@@ -33,6 +33,8 @@ func Flatten(value interface{}, prefix string) map[string]types.String {
 			}
 		case nil:
 			flattened[key] = types.MakeString("null")
+		case float64:
+			flattened[key] = types.MakeString(strconv.FormatFloat(value, 'f', -1, 64))
 		default:
 			flattened[key] = types.MakeString(fmt.Sprintf("%v", value))
 		}

pkg/flatten/flatten_test.go

@@ -17,6 +17,7 @@ func TestFlatten(t *testing.T) {
 		{"bool", "b", true, map[string]types.String{"b": types.MakeString("true")}},
 		{"int", "c", 42, map[string]types.String{"c": types.MakeString("42")}},
 		{"float", "d", 77.7, map[string]types.String{"d": types.MakeString("77.7")}},
+		{"large_float", "e", 1e23, map[string]types.String{"e": types.MakeString("100000000000000000000000")}},
 		{"string", "f", "\x00", map[string]types.String{"f": types.MakeString("\x00")}},
 		{"nil_slice", "g", []any(nil), map[string]types.String{"g": {}}},
 		{"empty_slice", "h", []any{}, map[string]types.String{"h": {}}},