chore: fixup

Signed-off-by: moul <[email protected]>

examples/gno.land/r/demo/foo20/foo20.gno

@@ -18,7 +18,9 @@ var (
 
 func init() {
 	foo = grc20.NewAdminToken("Foo", "FOO", 4)
-	grc20reg.Register(foo.GRC20(), "")
+	pub := foo.GRC20()
+	proxy := grc20reg.Proxify(pub)
+	grc20reg.Register(proxy.GetName, "")
 	foo.Mint(admin, 1000000*10000)                                    // @administrator (1M)
 	foo.Mint("g1u7y667z64x2h7vc6fmpcprgey4ck233jaww9zq", 10000*10000) // @manfred (10k)
 }

examples/gno.land/r/demo/grc20reg/grc20reg.gno

@@ -11,10 +11,14 @@ import (
 
 var registry = avl.NewTree() // pkg path -> IGRC20
 
+// func Register(getName func() string, slug string) {
+
 func Register(token grc20.IGRC20, slug string) {
+	// proxy := tmpproxy{getName: getName}
+	proxy := Proxify(token)
 	rlmPath := std.PrevRealm().PkgPath()
 	key := fqname.Construct(rlmPath, slug)
-	registry.Set(key, token)
+	registry.Set(key, proxy)
 	std.Emit(
 		registerEvent,
 		"pkgpath", rlmPath,

examples/gno.land/r/demo/grc20reg/tmp_proxy.gno

@@ -0,0 +1,57 @@
+package grc20reg
+
+import (
+	"std"
+
+	"gno.land/p/demo/grc/grc20"
+)
+
+// FIXME; delete this file.
+// we currently have a gnovm limitation:
+//
+//	panic: cannot modify external-realm or non-realm object
+type tmpproxy struct {
+	getName      func() string
+	getSymbol    func() string
+	getDecimals  func() uint
+	totalSupply  func() uint64
+	balanceOf    func(std.Address) (uint64, error)
+	transfer     func(std.Address, uint64) error
+	allowance    func(owner, spender std.Address) (uint64, error)
+	approve      func(std.Address, uint64) error
+	transferFrom func(from, to std.Address, amount uint64) error
+}
+
+func Proxify(input grc20.IGRC20) *tmpproxy {
+	return &tmpproxy{
+		getName:      input.GetName,
+		getSymbol:    input.GetSymbol,
+		getDecimals:  input.GetDecimals,
+		totalSupply:  input.TotalSupply,
+		balanceOf:    input.BalanceOf,
+		transfer:     input.Transfer,
+		allowance:    input.Allowance,
+		approve:      input.Approve,
+		transferFrom: input.TransferFrom,
+	}
+}
+
+var _ grc20.IGRC20 = (*tmpproxy)(nil)
+
+func (impl *tmpproxy) GetName() string                               { return impl.getName() }
+func (impl *tmpproxy) GetSymbol() string                             { return impl.getSymbol() }
+func (impl *tmpproxy) GetDecimals() uint                             { return impl.getDecimals() }
+func (impl *tmpproxy) TotalSupply() uint64                           { return impl.totalSupply() }
+func (impl *tmpproxy) BalanceOf(account std.Address) (uint64, error) { return impl.balanceOf(account) }
+func (impl *tmpproxy) Transfer(to std.Address, amount uint64) error  { return impl.transfer(to, amount) }
+func (impl *tmpproxy) Allowance(owner, spender std.Address) (uint64, error) {
+	return impl.allowance(owner, spender)
+}
+
+func (impl *tmpproxy) Approve(spender std.Address, amount uint64) error {
+	return impl.approve(spender, amount)
+}
+
+func (impl *tmpproxy) TransferFrom(from, to std.Address, amount uint64) error {
+	return impl.transferFrom(from, to, amount)
+}

examples/gno.land/r/demo/wugnot/gno.mod

@@ -4,5 +4,6 @@ require (
 	gno.land/p/demo/grc/grc20 v0.0.0-latest
 	gno.land/p/demo/ufmt v0.0.0-latest
 	gno.land/p/demo/users v0.0.0-latest
+	gno.land/r/demo/grc20reg v0.0.0-latest
 	gno.land/r/demo/users v0.0.0-latest
 )

examples/gno.land/r/demo/wugnot/wugnot.gno

@@ -6,10 +6,9 @@ import (
 
 	"gno.land/p/demo/grc/grc20"
 	"gno.land/p/demo/ufmt"
-
-	"gno.land/r/demo/users"
-
 	pusers "gno.land/p/demo/users"
+	"gno.land/r/demo/grc20reg"
+	"gno.land/r/demo/users"
 )
 
 var (
@@ -19,6 +18,10 @@ var (
 	WUGNOT = wugnot.GRC20()
 )
 
+func init() {
+	grc20reg.Register(WUGNOT, "")
+}
+
 const (
 	ugnotMinDeposit  uint64 = 1000
 	wugnotMinDeposit uint64 = 1