some notes for n0izn0iz

IDEA.txt

@@ -0,0 +1,31 @@
+create interface packages
+
+    type TheInterface interface {
+        Whatever()
+    }
+
+create a realm for each of these interface package with funcs
+
+    func Register(v TheInferface)
+
+        implementerRealm := std.PrevRealm()
+        tree.Set(implementerRealm, v)
+
+    func Get(address std.Address) TheInterface
+
+        return tree.Get(address)
+
+
+when you implement an interface in a new realm
+
+    var implem = newImplem()
+
+    func init() {
+        the_interface_realm.Register(implem)
+    }
+
+when you want to consume the interface via realm ref (package path or address) in some realm created before the implem
+
+    func DoSomething(realmRef Realm) {
+        the_interface_realm.Get(realmRef).Whatever()
+    }

examples/gno.land/p/demo/binutils/binutils.gno

@@ -0,0 +1,34 @@
+package binutils
+
+import (
+	"encoding/binary"
+	"errors"
+)
+
+var ErrInvalidLengthPrefixedString = errors.New("invalid length-prefixed string")
+
+func EncodeLengthPrefixedStringUint16BE(s string) []byte {
+	b := make([]byte, 2+len(s))
+	binary.BigEndian.PutUint16(b, uint16(len(s)))
+	copy(b[2:], s)
+	return b
+}
+
+func DecodeLengthPrefixedStringUint16BE(b []byte) (string, []byte, error) {
+	if len(b) < 2 {
+		return "", nil, ErrInvalidLengthPrefixedString
+	}
+	l := binary.BigEndian.Uint16(b)
+	if len(b) < 2+int(l) {
+		return "", nil, ErrInvalidLengthPrefixedString
+	}
+	return string(b[2 : 2+l]), b[l+2:], nil
+}
+
+func MustDecodeLengthPrefixedStringUint16BE(b []byte) (string, []byte) {
+	s, r, err := DecodeLengthPrefixedStringUint16BE(b)
+	if err != nil {
+		panic(err)
+	}
+	return s, r
+}

examples/gno.land/p/demo/binutils/gno.mod

@@ -0,0 +1 @@
+module gno.land/p/demo/binutils

examples/gno.land/p/demo/cpavl/Makefile

@@ -0,0 +1,30 @@
+pkgpath=p/demo/cpavl
+pkguri=gno.land/$(pkgpath)
+pkgsrc=.
+
+chainid=dev
+gnoland=localhost:26657
+gnoweb=http://localhost:8888
+wallet=onblock-test
+
+#chainid=test3
+#gnoland=test3.gno.land:36657
+#gnoweb=https://test3.gno.land
+#wallet=dev
+
+.PHONY: deploy.package
+deploy.pkg:
+	gnokey maketx addpkg  \
+		-deposit="1ugnot" \
+		-gas-fee="1ugnot" \
+		-gas-wanted="5000000" \
+		-broadcast="true" \
+		-remote="$(gnoland)" \
+		-chainid="$(chainid)" \
+		-pkgdir="./$(pkgsrc)" \
+		-pkgpath="$(pkguri)" \
+		$(wallet)
+
+.PHONY: open.pkg
+open.pkg:
+	open "$(gnoweb)/$(pkgpath)"

examples/gno.land/p/demo/cpavl/gno.mod

@@ -0,0 +1 @@
+module gno.land/p/demo/cpavl