Merge pull request #36 from xypwn/main

 update ryegen and go.mod

current/fyne_io_fyne_v2/custom.go

@@ -0,0 +1,33 @@
+// Add your custom builtins to this file.
+
+package fyne_io_fyne_v2
+
+import (
+	"strings"
+
+	"github.com/refaktor/rye/env"
+)
+
+var builtinsCustom = map[string]*env.Builtin{
+	"nil": {
+		Doc: "nil value for go types",
+		Fn: func(ps *env.ProgramState, arg0, arg1, arg2, arg3, arg4 env.Object) env.Object {
+			return *env.NewInteger(0)
+		},
+	},
+	"kind": {
+		Doc: "underlying kind of a go native",
+		Fn: func(ps *env.ProgramState, arg0, arg1, arg2, arg3, arg4 env.Object) env.Object {
+			nat, ok := arg0.(env.Native)
+			if !ok {
+				ps.FailureFlag = true
+				return env.NewError("kind: arg0: expected native")
+			}
+			s := ps.Idx.GetWord(nat.Kind.Index)
+			s = s[3 : len(s)-1]            // remove surrounding "Go()"
+			s = strings.TrimPrefix(s, "*") // remove potential pointer "*"
+			return *env.NewString(s)
+		},
+	},
+	// Add your custom builtins here:
+}