add path

src/path.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path"
+)
+
+var ArPath = Map(
+	anymap{
+		"ReadDir": builtinFunc{
+			"ReadDir",
+			func(args ...any) (any, ArErr) {
+				if len(args) != 1 {
+					return nil, ArErr{
+						TYPE:    "runtime",
+						message: "ReadDir takes exactly 1 argument, got " + fmt.Sprint(len(args)),
+						EXISTS:  true,
+					}
+				}
+				args[0] = ArValidToAny(args[0])
+				if typeof(args[0]) != "string" {
+					return nil, ArErr{
+						TYPE:    "runtime",
+						message: "ReadDir argument must be a string, got " + typeof(args[0]),
+						EXISTS:  true,
+					}
+				}
+				files, err := os.ReadDir(args[0].(string))
+				if err != nil {
+					return nil, ArErr{
+						TYPE:    "runtime",
+						message: err.Error(),
+						EXISTS:  true,
+					}
+				}
+				var ret []any
+				for _, file := range files {
+					ret = append(ret, file.Name())
+				}
+				return ret, ArErr{}
+			}},
+		"join": builtinFunc{
+			"join",
+			func(args ...any) (any, ArErr) {
+				if len(args) != 1 {
+					return nil, ArErr{
+						TYPE:    "runtime",
+						message: "join takes exactly 1 argument, got " + fmt.Sprint(len(args)),
+						EXISTS:  true,
+					}
+				}
+				args[0] = ArValidToAny(args[0])
+				switch arr := args[0].(type) {
+				case []any:
+					var Path []string
+					for _, x := range arr {
+						x = ArValidToAny(x)
+						if typeof(x) != "string" {
+							return nil, ArErr{
+								TYPE:    "runtime",
+								message: "join argument must be an array of strings, got " + typeof(x),
+								EXISTS:  true,
+							}
+						}
+						Path = append(Path, x.(string))
+					}
+					return path.Join(Path...), ArErr{}
+				}
+				return nil, ArErr{
+					TYPE:    "runtime",
+					message: "join argument must be an array, got " + typeof(args[0]),
+					EXISTS:  true,
+				}
+			}},
+	})