fx/pkg/reducer/utils.go
2022-05-10 21:59:59 +02:00

52 lines
979 B
Go

package reducer
import (
"fmt"
"regexp"
"strings"
. "github.com/antonmedv/fx/pkg/json"
. "github.com/antonmedv/fx/pkg/theme"
)
func Echo(object interface{}, theme Theme) {
if s, ok := object.(string); ok {
fmt.Println(s)
} else {
fmt.Println(PrettyPrint(object, 1, theme))
}
}
func trace(args []string, i int) (pre, post, pointer string) {
pre = strings.Join(args[:i], " ")
if len(pre) > 20 {
pre = "..." + pre[len(pre)-20:]
}
post = strings.Join(args[i+1:], " ")
if len(post) > 20 {
post = post[:20] + "..."
}
pointer = fmt.Sprintf(
"%v %v %v",
strings.Repeat(" ", len(pre)),
strings.Repeat("^", len(args[i])),
strings.Repeat(" ", len(post)),
)
return
}
var flatMapRegex = regexp.MustCompile("^(\\.\\w*)+\\[]")
func fold(s []string) string {
if len(s) == 1 {
return "x => x" + s[0]
}
obj := s[0]
if obj == "." {
obj = "x"
} else {
obj = "x" + obj
}
return fmt.Sprintf("x => Object.values(%v).flatMap(%v)", obj, fold(s[1:]))
}